JP-2016-001234-A

PATENT ABSTRACTS OF JAPAN(11)Publication number 2016-001234(43)Date of publication of application

07.01.2016

(51)Int.Cl. G02F 1/13 (2006.01)G02B 27/22 (2006.01)H04N 13/04 (2006.01)G02F 1/1343 (2006.01)

(21)Application number 2014-120623(22)Date of filing 11.06.2014(71)Applicant JAPAN DISPLAY INC(72)Inventor OKA SHINICHIRO

SHIRAI KOICHIOCHIAI TAKAHIROAZUMA SHU

(54)THREE-DIMENSIONAL DISPLAY DEVICE

(57)AbstractPROBLEM TO BE SOLVED: To provide a three-dimensional image display device with which it is possible to recognize an excellent three-dimensional image even when a sight line has moved, and in which crosstalk is few and moire is few.SOLUTION: A liquid crystal parallax barrier panel is disposed on a display panel, the pitch of barriers in the liquid crystal parallax barrier panel being about 2P, where P represents a pixel pitch in a liquid crystal display panel. A second pixel 112 is formed beneath a first barrier electrode 111, with an insulation layer 120 in between, so as to fill a gap between first pixel electrodes 111. The number of first barrier electrodes 111 and second barrier electrodes 112 inside the barrier is 6 or greater, the position of the barrier formed by the first barrier electrodes 111 and second barrier electrodes 112 being controlled upon receiving a signal indicating the positions of viewer eyes that are detected, and being configured so that BA/BE is 0.3 or less, where BE represents the pitch of the first barrier electrodes 111 and BA represents a width that the first barrier electrodes 111 and second barrier electrodes 112 overlap.

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[Claim(s)] [Claim 1] It is three-dimensional display equipment which a liquid crystal parallax barrier panel arranges, follows in footsteps of a motion [ a position of a visual recognition person's eye ], and a barrier position of the aforementioned liquid crystal parallax barrier panel moves onto a display panel, The aforementioned display panel has the pixel which a first sub pixel, a second sub pixel, and the 3rd sub pixel arranged in the first direction, and it arranges the aforementioned pixel with a first pitch in said first direction, Barrier which extends in said first direction and the second direction of a right angle direction arranges the aforementioned liquid crystal parallax barrier panel with a second pitch in said first direction in said first direction, The aforementioned barrier of the aforementioned liquid crystal parallax barrier panel, It extends in said second direction, and it extends in said second direction via an insulating layer in a lower layer of a first barrier electrode arranged in the pitch BE in said first direction, and said first barrier electrode, and has a second barrier electrode arranged in the pitch BE for said first direction 1, As for a number within the above 2P of said first barrier electrode, a number within the above 2P of those with six or more and said second barrier electrode is those with six or more, Said second barrier electrode is seen at a plane, and it overlaps in said first barrier electrode and said first direction, and it is formed so that an interval of said first barrier electrode and said first barrier electrode may be buried, Three-dimensional display equipment characterized by aforementioned BA / above BE being 0.3 or less when said first barrier electrode and said second barrier electrode set to BA width which is overlapping [ aforementioned ].

[Claim 2] The three-dimensional display equipment according to claim 1, wherein aforementioned BA / above BE are 0.2 or less.

[Claim 3] It is three-dimensional display equipment which a liquid crystal parallax barrier panel arranges, follows in footsteps of a motion [ a position of a visual recognition person's eye ], and a barrier position of the aforementioned liquid crystal parallax barrier panel moves onto a display panel, The aforementioned display panel has the pixel which a first sub pixel, a second sub pixel, and the 3rd sub pixel arranged in the first direction, and it arranges the aforementioned pixel with a first pitch in said first direction, Barrier which extends in said first direction and the second direction of a right angle direction arranges the aforementioned liquid crystal parallax barrier panel with a pitch of the 2nd ** in said first direction in said first direction, The aforementioned barrier of the aforementioned liquid crystal parallax barrier panel, It extends in said second direction, and it extends in said second direction via an insulating layer in a lower layer of a first barrier electrode arranged in the pitch BE in said first direction, and said first barrier electrode, and has a second barrier electrode arranged in the pitch BE in said first direction, As for a number within the above 2P of said first barrier electrode, a number within the above 2P of those with six or more and said second barrier electrode is those with six or more,

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Said second barrier electrode is seen at a plane, and in an interval of said first barrier electrode and said first barrier electrode, it is formed so that said first barrier electrode may not be overlapped, Three-dimensional display equipment characterized by aforementioned BB / above BE being 0.3 or less when an interval seen at a plane of said first barrier electrode and said second barrier electrode is set to BB.

[Claim 4] The three-dimensional display equipment according to claim 3, wherein aforementioned BB / above BE are 0.2 or less.

[Claim 5] It is three-dimensional display equipment which a liquid crystal parallax barrier panel arranges, follows in footsteps of a motion [ a position of a visual recognition person's eye ], and a barrier position of the aforementioned liquid crystal parallax barrier panel moves onto a display panel, The aforementioned display panel has the pixel which a first sub pixel, a second sub pixel, and the 3rd sub pixel arranged in the first direction, the aforementioned pixel is arranged with a first pitch in said first direction -- barrier which extends in said first direction and the second direction of a right angle direction arranges the aforementioned liquid crystal parallax barrier panel with a pitch of the 2nd ** in said first direction in said first direction The aforementioned barrier of the aforementioned liquid crystal parallax barrier panel, It extends in said second direction, and it extends in said second direction via an insulating layer in a lower layer of a first barrier electrode arranged in the pitch BE in said first direction, and said first barrier electrode, and has a second barrier electrode arranged in the pitch BE in said first direction, When a number within the above 2P of said first barrier electrode in the aforementioned barrier was set to S and distance of the center of a liquid crystal layer of the aforementioned liquid crystal display panel and the center of a liquid crystal layer of the aforementioned liquid crystal parallax barrier panel is set to Lg, S>=2P/[(Lg/1.5) tan5] It has ******, Said second barrier electrode is seen at a plane, and it overlaps in said first barrier electrode and said first direction, and it is formed so that an interval of said first barrier electrode and said first barrier electrode may be buried, Three-dimensional display equipment characterized by aforementioned BA / above BE being 0.3 or less when said first barrier electrode and said second barrier electrode set to BA width which is overlapping [ aforementioned ].

[Claim 6] When a number within the above 2P of said first barrier electrode in the aforementioned barrier was set to S and distance of the center of a liquid crystal layer of the aforementioned liquid crystal display panel and the center of a liquid crystal layer of the aforementioned liquid crystal parallax barrier panel is set to Lg, S>=2P/[(Lg/1.5) tan3] The liquid crystal display according to claim 5 having ******.

[Claim 7]

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The three-dimensional display equipment according to claim 5, wherein aforementioned BA / above BE are 0.2 or less.

[Claim 8] The three-dimensional display equipment according to claim 6, wherein aforementioned BA / above BE are 0.2 or less.

[Claim 9] It is three-dimensional display equipment which a liquid crystal parallax barrier panel arranges, follows in footsteps of a motion [ a position of a visual recognition person's eye ], and a barrier position of the aforementioned liquid crystal parallax barrier panel moves onto a display panel, The aforementioned display panel has the pixel which a first sub pixel, a second sub pixel, and the 3rd sub pixel arranged in the first direction, and it arranges the aforementioned pixel with a first pitch in said first direction, Barrier which extends in said first direction and the second direction of a right angle direction arranges the aforementioned liquid crystal parallax barrier panel with a second pitch in said first direction in said first direction, The aforementioned barrier of the aforementioned liquid crystal parallax barrier panel, It extends in said second direction, and it extends in said second direction via an insulating layer in a lower layer of a first barrier electrode arranged in the pitch BE in said first direction, and said first barrier electrode, and has a second barrier electrode arranged in the pitch BE in said first direction, When a number within the above 2P of said first barrier electrode in the aforementioned barrier was set to S and the center of a liquid crystal layer of the aforementioned liquid crystal display panel and distance based on [ of the aforementioned liquid crystal parallax barrier panel ] liquid crystal layers are set to Lg, S>=2P/[(Lg/1.5) tan5] It has ******, Said second barrier electrode is seen at a plane, and in an interval of said first barrier electrode and said first barrier electrode, it is formed so that said first barrier electrode may not be overlapped, Three-dimensional display equipment characterized by aforementioned BB / above BE being 0.3 or less when an interval seen at a plane of said first barrier electrode and said second barrier electrode is set to BB.

[Claim 10] When a number within the above 2P of said first barrier electrode in the aforementioned barrier was set to S and distance of the center of a liquid crystal layer of the aforementioned liquid crystal display panel and the center of a liquid crystal layer of the aforementioned liquid crystal parallax barrier panel is set to Lg, S>=2P/[(Lg/1.5) tan3] The liquid crystal display according to claim 9 having ******.

[Claim 11] The three-dimensional display equipment according to claim 9, wherein aforementioned BB / above BE are 0.2 or less.

[Claim 12]

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The three-dimensional display equipment according to claim 10, wherein aforementioned BB / above BE are 0.2 or less.

[Claim 13] It is three-dimensional display equipment which a liquid crystal parallax barrier panel arranges, follows in footsteps of a motion [ a position of a visual recognition person's eye ], and a barrier position of the aforementioned liquid crystal parallax barrier panel moves onto a display panel, The aforementioned display panel has the pixel which a first sub pixel, a second sub pixel, and the 3rd sub pixel arranged in the first direction, and it arranges the aforementioned pixel with a first pitch in said first direction, Barrier which extends in said first direction and the second direction of a right angle direction arranges the aforementioned liquid crystal parallax barrier panel with a second pitch in said first direction in said first direction, The aforementioned barrier of the aforementioned liquid crystal parallax barrier panel, It extends in said second direction, and it extends in said second direction via an insulating layer in a lower layer of a first barrier electrode arranged in the pitch BE in said first direction, and said first barrier electrode, and has a second barrier electrode arranged in the pitch BE in said first direction, As for a number within the above 2P of said first barrier electrode, a number within the above 2P of those with six or more and said second barrier electrode is those with six or more, Said first barrier electrode is seen at a plane, said second barrier electrode is overlapped by width BA apart from said first direction, and a gap between width BB exists between said second barrier electrodes in another side of said first direction, Three-dimensional display equipment which aforementioned BA / above BE are 0.3 or less, and aforementioned BB / above BE are 0.3 or less, and is characterized by ******.

[Claim 14] It is three-dimensional display equipment which a liquid crystal parallax barrier panel arranges, follows in footsteps of a motion [ a position of a visual recognition person's eye ], and a barrier position of the aforementioned liquid crystal parallax barrier panel moves onto a display panel, The aforementioned display panel has the pixel which a first sub pixel, a second sub pixel, and the 3rd sub pixel arranged in the first direction, and it arranges the aforementioned pixel with a first pitch in said first direction, Barrier which extends in said first direction and the second direction of a right angle direction arranges the aforementioned liquid crystal parallax barrier panel with a second pitch in said first direction in said first direction, The aforementioned barrier of the aforementioned liquid crystal parallax barrier panel, It extends in said second direction, and it extends in said second direction via an insulating layer in a lower layer of a first barrier electrode arranged in the pitch BE in said first direction, and said first barrier electrode, and has a second barrier electrode arranged in the pitch BE in said first direction, When a number within the above 2P of said first barrier electrode in the aforementioned barrier was set to S and distance of the center of a liquid crystal layer of the aforementioned liquid crystal display panel and the center of a liquid crystal layer of the aforementioned liquid crystal parallax barrier panel is set to Lg, S>=2P/[(Lg/1.5) tan5] It has ******,

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At a plane, see said first barrier electrode and apart from said first direction, said second barrier electrode is overlapped by width BA, and a gap between width BB exists between said second barrier electrodes in another side of said first direction -- three-dimensional display equipment, wherein aforementioned BA / above BE are 0.3 or less and aforementioned BB / above BE are 0.3 or less.

[Claim 15] The three-dimensional display equipment according to claim 13 which aforementioned BA / above BE are 0.2 or less, and aforementioned BB / above BE are 0.2 or less, and is characterized by ******.

[Claim 16] The three-dimensional display equipment according to claim 14 which aforementioned BA / above BE are 0.3 or less, and aforementioned BB / above BE are 0.3 or less, and is characterized by ******.

[Claim 17] Three-dimensional display equipment of a description in any 1 item of Claims 1-16, wherein film thickness of said first barrier electrode and film thickness of said second barrier electrode correspond within 10%.

[Claim 18] Three-dimensional display equipment of a description in any 1 item of Claims 1-16, wherein transmissivity to white light of said first barrier electrode and transmissivity to white light of said second barrier electrode correspond within 5%.

[Detailed Description of the Invention] [Field of the Invention] [0001] The present invention relates to a display device, especially relates to the three-dimensional image display device using the parallax barrier panel by a liquid crystal. [Background of the Invention] [0002] The parallax barrier system is known as the method of presentation of the three-dimensional image which does not use glasses. The slit in which the parallax barrier system of the longitudinal direction of parallax barrier panel ******** plurality is fine behind [ of having entered ] a board The image of the view from a right eye, It is the method of installing the image which cut off the image of the view from a left eye in strip shape perpendicularly, and put it in order alternately, and displaying a three-dimensional image for the image via a parallax barrier. The liquid crystal parallax barrier panel using a liquid crystal has the characteristics that a three-dimensional display and a two-dimensional display can be switched easily. [0003] In the liquid crystal parallax barrier panel, an insulating layer is inserted, the barrier electrode of a barrier panel is made into the two-layer structure of a first barrier electrode and second barrier electrode, and the composition which can maintain resolution is described in the Patent document 1 also in the three-dimensional image. The composition in which the width of the second barrier

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electrode formed in a lower layer is enlarged rather than the interval of a first barrier electrode is described in the Patent document 1. [0004] Although, as for a parallax barrier system, what is called a cross talk with which the pixel for right eyes will be recognized by the left eye becomes a problem, for example, the measuring method of this cross talk is described in the nonpatent literature 1. [Citation list] [Patent literature] [0005] [Patent document 1] JP,2009-9081,A [Nonpatent literature] [0006] [Nonpatent literature 1] S. Oka and et. al."Crosstalk. Reduction of 3D LCDs based on Analysis of LC Graded-Index (GRIN) Lens Factors."SID'12, digest 29.3, (2012), p.387. [Summary of Invention] [Problem to be solved by the invention] [0007] The parallax barrier panel using a liquid crystal has the advantage that a two-dimensional image and a three-dimensional image can be switched easily if needed. That is, it can display in three dimensions, if a barrier signal is applied to a liquid crystal parallax barrier panel and a barrier pattern is formed, and when not applying a barrier signal to a liquid crystal parallax barrier panel, it can indicate by two-dimensional. [0008] The parallax barrier system has the problem that a cross talk occurs, if a viewpoint is moved. A cross talk is a phenomenon in which the pixel which is visible only to a left eye will originally be visible also to a right eye for example. [0009] In order to prevent this, the position of eyes is followed with a camera and there is a system which controls the position of the barrier in accordance with the position of eyes, and stops a cross talk. This is called an eye tracking system. In this case, it is necessary to control the position of a barrier electrode finely. [0010] Although the barrier electrode pitch was twice [ about ] the picture element pitch P in a liquid crystal display panel conventionally, the width of the barrier electrode supposed that it is substantially the same as a picture element pitch. However, in order to make eye tracking possible, it is necessary to divide a barrier electrode finely and to control it. In order to divide more finely, it is necessary to make a barrier electrode into two-layer structure, and to form alternately the upper electrode (the 1st barrier electrode) and lower layer electrode (the 2nd barrier electrode) which are both barrier electrodes of stripe shape on both sides of an insulating layer. [0011] In such a case, the region with which the 1st barrier electrode and the 2nd barrier electrode lap is generated. In the region with which the 1st barrier electrode and the 2nd barrier electrode lapped, transmissivity becomes small. When the portion to which this transmissivity became small exists periodically, moire occurs between display panels. Since image quality is made to be deteriorated, this moire must be avoided. [0012]

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The problem given to the present invention is realizing the liquid crystal parallax barrier panel which can inhibit generating of moire, using the low eye tracking system of a cross talk. [Means for solving problem] [0013] The present invention solves the above problems and the main concrete means are as follows. [0014] A liquid crystal parallax barrier panel on a display panel (1) An arrangement bookmark, It is three-dimensional display equipment which follows in footsteps of a motion [ the position of a visual recognition person's eye ], and the barrier position of the aforementioned liquid crystal parallax barrier panel moves, The aforementioned display panel has the pixel which a first sub pixel, a second sub pixel, and the 3rd sub pixel arranged in the first direction, With a first pitch, arrange the aforementioned pixel in the above-mentioned first direction, and the aforementioned liquid crystal parallax barrier panel, With a second pitch, the barrier which extends in the above-mentioned first direction and the second direction of a right angle direction arranges in the above-mentioned first direction, and the aforementioned barrier of the aforementioned liquid crystal parallax barrier panel, The first barrier electrode that extends in the above-mentioned second direction and it arranges in the pitch BE in the above-mentioned first direction, It extends in the above-mentioned second direction via an insulating layer in the lower layer of the above-mentioned first barrier electrode, It is those with six or more that have a second barrier electrode arranged in the pitch BE in the above-mentioned first direction, and there is a number within the above 2P of the above-mentioned first barrier electrode. Overlap in the above-mentioned first barrier electrode and the above-mentioned first direction, and it is formed so that the number within the above 2P of the above-mentioned second barrier electrode may be seen with six or more, the above-mentioned second barrier electrode may be seen at a plane and the interval of the above-mentioned first barrier electrode and the above-mentioned first barrier electrode may be buried, Three-dimensional display equipment characterized by aforementioned BA / above BE being 0.3 or less when the above-mentioned first barrier electrode and the above-mentioned second barrier electrode set to BA width which is overlapping [ aforementioned ]. [0015] (2) The liquid crystal parallax barrier panel arranges on a display panel, It is three-dimensional display equipment which follows in footsteps of a motion [ the position of a visual recognition person's eye ], and the barrier position of the aforementioned liquid crystal parallax barrier panel moves, The aforementioned display panel has the pixel which a first sub pixel, a second sub pixel, and the 3rd sub pixel arranged in the first direction, With a first pitch, arrange the aforementioned pixel in the above-mentioned first direction, and the aforementioned liquid crystal parallax barrier panel, In the above-mentioned first direction, with a second pitch, the barrier which extends in the above-mentioned first direction and the second direction of a right angle direction arranges in the above-mentioned first direction, and the aforementioned barrier of the aforementioned liquid crystal parallax barrier panel, The first barrier electrode that extends in the above-mentioned second direction and it arranges in the pitch BE in the above-mentioned first direction, It extends in the above-mentioned second direction via an insulating layer in the lower layer of the above-mentioned first barrier electrode, It is those with six or more that have a second barrier electrode arranged in the pitch BE in the above-mentioned first direction, and there is a number within the above 2P of the above-mentioned first barrier electrode. See the number within the above 2P of the above-mentioned second barrier electrode with six or more, and see the above-mentioned second barrier electrode at a plane, and in the interval of the above-mentioned first barrier electrode and the above-mentioned first barrier electrode, it is formed so that the above-mentioned first barrier electrode may not be overlapped, Three-dimensional display equipment

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characterized by aforementioned BB / above BE being 0.3 or less when the interval seen at the plane of the above-mentioned first barrier electrode and the above-mentioned second barrier electrode is set to BB. [0016] (3) The liquid crystal parallax barrier panel arranges on a display panel, It is three-dimensional display equipment which follows in footsteps of a motion [ the position of a visual recognition person's eye ], and the barrier position of the aforementioned liquid crystal parallax barrier panel moves, The aforementioned display panel has the pixel which a first sub pixel, a second sub pixel, and the 3rd sub pixel arranged in the first direction, and it arranges the aforementioned pixel with a first pitch in the above-mentioned first direction, The barrier which extends in the above-mentioned first direction and the second direction of a right angle direction arranges the aforementioned liquid crystal parallax barrier panel with a second pitch in the above-mentioned first direction in the above-mentioned first direction, The aforementioned barrier of the aforementioned liquid crystal parallax barrier panel, The first barrier electrode that extends in the above-mentioned second direction and it arranges in the pitch BE in the above-mentioned first direction, It extends in the above-mentioned second direction via an insulating layer in the lower layer of the above-mentioned first barrier electrode, Have a second barrier electrode arranged in the pitch BE in the above-mentioned first direction, and it sets the number within the above 2P of the above-mentioned first barrier electrode in the aforementioned barrier to S, When distance of the liquid crystal layer of the aforementioned liquid crystal display panel and the liquid crystal layer of the aforementioned liquid crystal parallax barrier panel is set to Lg, Have >=2P/[(Lg/1.5) tan5] relations, and the above-mentioned second barrier electrode, So that it may see at a plane and the interval of the above-mentioned first barrier electrode and the above-mentioned first barrier electrode may be buried. Three-dimensional display equipment characterized by aforementioned BA / above BE being 0.3 or less when it overlaps in the above-mentioned first barrier electrode and the above-mentioned first direction, and is formed and the above-mentioned first barrier electrode and the above-mentioned second barrier electrode set to BA width which is overlapping [ aforementioned ]. [0017] (4) The liquid crystal parallax barrier panel arranges on a display panel, It is three-dimensional display equipment which follows in footsteps of a motion [ the position of a visual recognition person's eye ], and the barrier position of the aforementioned liquid crystal parallax barrier panel moves, The aforementioned display panel has the pixel which a first sub pixel, a second sub pixel, and the 3rd sub pixel arranged in the first direction, With a first pitch, arrange the aforementioned pixel in the above-mentioned first direction, and the aforementioned liquid crystal parallax barrier panel, In the above-mentioned first direction, with a second pitch, the barrier which extends in the above-mentioned first direction and the second direction of a right angle direction arranges in the above-mentioned first direction, and the aforementioned barrier of the aforementioned liquid crystal parallax barrier panel, The first barrier electrode that extends in the above-mentioned second direction and it arranges in the pitch BE in the above-mentioned first direction, It extends in the above-mentioned second direction via an insulating layer in the lower layer of the above-mentioned first barrier electrode, Have a second barrier electrode arranged in the pitch BE in the above-mentioned first direction, and it sets the number within the above 2P of the above-mentioned first barrier electrode in the aforementioned barrier to S, When distance of the liquid crystal layer of the aforementioned liquid crystal display panel and the liquid crystal layer of the aforementioned liquid crystal parallax barrier panel is set to Lg, have a relation of >=2P/[(Lg/1.5) tan5], and it sees the above-mentioned second barrier electrode at a plane, In the interval of the above-mentioned first barrier electrode and the above-mentioned first barrier electrode, it is

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formed so that the above-mentioned first barrier electrode may not be overlapped, Three-dimensional display equipment characterized by aforementioned BB / above BE being 0.3 or less when the interval seen at the plane of the above-mentioned first barrier electrode and the above-mentioned second barrier electrode is set to BB. [0018] (5) The liquid crystal parallax barrier panel arranges on a display panel, It is three-dimensional display equipment which follows in footsteps of a motion [ the position of a visual recognition person's eye ], and the barrier position of the aforementioned liquid crystal parallax barrier panel moves, The aforementioned display panel has the pixel which a first sub pixel, a second sub pixel, and the 3rd sub pixel arranged in the first direction, With a first pitch, arrange the aforementioned pixel in the above-mentioned first direction, and the aforementioned liquid crystal parallax barrier panel, In the above-mentioned first direction, with a second pitch, the barrier which extends in the above-mentioned first direction and the second direction of a right angle direction arranges in the above-mentioned first direction, and the aforementioned barrier of the aforementioned liquid crystal parallax barrier panel, The first barrier electrode that extends in the above-mentioned second direction and it arranges in the pitch BE in the above-mentioned first direction, It extends in the above-mentioned second direction via an insulating layer in the lower layer of the above-mentioned first barrier electrode, It is those with six or more that have a second barrier electrode arranged in the pitch BE in the above-mentioned first direction, and there is a number within the above 2P of the above-mentioned first barrier electrode. Apart from the above-mentioned first direction, by width BA, see the number within the above 2P of the above-mentioned second barrier electrode with six or more, see the above-mentioned first barrier electrode at a plane, overlap the above-mentioned second barrier electrode, and in another side of the above-mentioned first direction, Three-dimensional display equipment which the gap between width BB exists between the above-mentioned second barrier electrodes, aforementioned BA / above BE are 0.3 or less, and aforementioned BB / above BE are 0.3 or less, and is characterized by ******. [0019] (6) The liquid crystal parallax barrier panel arranges on a display panel, It is three-dimensional display equipment which follows in footsteps of a motion [ the position of a visual recognition person's eye ], and the barrier position of the aforementioned liquid crystal parallax barrier panel moves, The aforementioned display panel has the pixel which a first sub pixel, a second sub pixel, and the 3rd sub pixel arranged in the first direction, With a first pitch, arrange the aforementioned pixel in the above-mentioned first direction, and the aforementioned liquid crystal parallax barrier panel, In the above-mentioned first direction, with a second pitch, the barrier which extends in the above-mentioned first direction and the second direction of a right angle direction arranges in the above-mentioned first direction, and the aforementioned barrier of the aforementioned liquid crystal parallax barrier panel, The first barrier electrode that extends in the above-mentioned second direction and it arranges in the pitch BE in the above-mentioned first direction, It extends in the above-mentioned second direction via an insulating layer in the lower layer of the above-mentioned first barrier electrode, Have a second barrier electrode arranged in the pitch BE in the above-mentioned first direction, and it sets the number within the above 2P of the above-mentioned first barrier electrode in the aforementioned barrier to S, When distance of the center of the liquid crystal layer of the aforementioned liquid crystal display panel and the center of the liquid crystal layer of the aforementioned liquid crystal parallax barrier panel is set to Lg, have a relation of S>=2P/[(Lg/1.5) tan5], and it sees the above-mentioned first barrier electrode at a plane, Apart from the above-mentioned first direction, by width BA, overlap the above-mentioned second barrier electrode and in another side of the above-mentioned first direction, Three-dimensional display equipment which the gap between width BB exists between the above-

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mentioned second barrier electrodes, aforementioned BA / above BE are 0.3 or less, and aforementioned BB / above BE are 0.3 or less, and is characterized by ******. [Effect of the Invention] [0020] According to the present invention, in the three-dimensional image display device using a liquid crystal parallax barrier panel, since a cross talk can be stopped small and generating of moire can be inhibited even when a viewpoint moves, a high-definition three-dimensional image device is realizable.

[Brief Description of the Drawings] [0021] [Drawing 1]It is a cross section of the three-dimensional image display device in the present invention. [Drawing 2]It is a cross section showing the principle of a parallax barrier system. [Drawing 3]It is a cross sectional view of the liquid crystal parallax barrier panel at the time of considering it as the case where the barrier is not formed. [Drawing 4]It is a cross sectional view of the liquid crystal parallax barrier panel in the present invention. [Drawing 5]It is a cross sectional view showing the case where the composition of the barrier electrode in the present invention and the position of the barrier move. [Drawing 6]It is a graph which shows the emitting angle dependency of a cross talk. [Drawing 7]It is a cross sectional view showing the relation between the 1st barrier electrode of the working example 1, and the 2nd barrier electrode. [Drawing 8]It is a graph which shows the lap of the 1st barrier electrode and the 2nd barrier electrode, and the level of moire. [Drawing 9]It is a cross sectional view showing the relation between the 1st barrier electrode of the working example 2, and the 2nd barrier electrode. [Drawing 10]It is a graph which shows the gap between the 1st barrier electrode and the 2nd barrier electrode, and the level of moire. [Drawing 11]It is a cross sectional view showing other forms of the 1st barrier electrode and the 2nd barrier electrode. [Drawing 12]It is a mimetic diagram showing the system of eye tracking. [Description of Embodiments] [0022] An working example is used for below and the present invention is described in detail. [Work example 1] [0023] Fig.1 is a cross section of the three-dimensional image device by the present invention. The equipment shown in Fig.1 has composition which can recognize a three-dimensional image visually using the liquid crystal parallax barrier panel 10 in the image formed with the liquid crystal display panel 20. The liquid crystal parallax barrier panel 10 and the liquid crystal display panel 20 are adhered with the binder 300. Transparent adhesive materials, such as an acrylic resin, are used for this binder 300. [0024] In Fig.1, although the liquid crystal display panel 20 is used, as a display panel, an organic EL display device (OLED) etc. may be used instead of a liquid crystal display panel. Which systems, such as an IPS system, a VA system, and a TN system, may be sufficient as a liquid crystal display panel. However, since the IPS system is excellent in the view angle characteristic, to the three-

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dimensional image display of a parallax barrier system, it is suitable. In Fig.1, distance of the center of the liquid crystal layer of the liquid crystal display panel 20 and the center of the liquid crystal layer of the liquid crystal parallax barrier panel 10 is set to Lg. [0025] The liquid crystal display panel 20 is the composition that the liquid crystal was pinched between TFT substrate 400 and the counter substrate 500 by which the pixel which has TFT and a picture element electrode was formed in matrix form, The liquid crystal parallax barrier panel 10 is the composition that the liquid crystal was pinched between the barrier substrate 100 in which the barrier electrode 110 was formed, and the common substrate 200 in which the common electrode 210 was formed. Although not displayed on Fig.1, the lower polarizing plate has been arranged below the liquid crystal display panel 20, the inside polarizing plate has been arranged above the liquid crystal display panel 20, and the upper polarizing plate arranges on the liquid crystal parallax barrier panel 10. [0026] Since a liquid crystal display does not emit light by itself, the backlight 600 is arranged at the back face of the liquid crystal display panel. The backlight 600 contains optics, such as a prism sheet for improving the utilization efficiency of light depending on a light guide plate, a diffusion board, and a case besides a light source. [0027] Fig.2 is a cross sectional view showing the principle of the three-dimensional image display of a parallax barrier system. When a right eye recognizes the image R for right eyes formed in the display device and a left eye recognizes the image L for left eyes by the barrier region formed in the liquid crystal parallax barrier panel, and an opening region, the human being can recognize a three-dimensional image. [0028] Fig.3 is a cross sectional view showing operation of a liquid crystal parallax barrier panel. The liquid crystal parallax barrier panel shown in Fig.3 is TN type of the normally white which light transmits, when not adding a signal. Although a normally black may be sufficient as a liquid crystal parallax barrier panel, since the way of a normally white can do transmissivity largely, it fits the liquid crystal parallax barrier panel. Although described by TN type with these Descriptions as a liquid crystal parallax barrier panel, as long as it can form a barrier bar turn, the liquid crystal panel of other operation methods may be sufficient. [0029] Fig.3 (a) is a case where a signal is not applied to the barrier electrode 110. In Fig.3 (a), the barrier electrode 110 extends to paper side vertical direction at the barrier substrate 100, and it is formed in stripe shape. The common electrode 210 is formed in the common substrate 200 planate. The inside polarizing plate 700 has arranged under the barrier substrate 100, and the upper polarizing plate 800 arranges on the common substrate 200. The inside polarizing plate 700 has a role of the lower polarizing plate in the usual liquid crystal display. [0030] In the case of Fig.3 (a), the light from a liquid crystal display panel does not receive modulation by a liquid crystal parallax barrier panel. Therefore, the image displayed on the liquid crystal display panel is recognized as a two-dimensional image as it is. Fig.3 (b) is a case where apply a signal to the barrier electrode 110 and a barrier pattern is formed. Composition is the same as having described by Fig.3 (a). In the liquid crystal layer corresponding to the place where the signal was applied to the barrier electrode 110, a liquid crystal element rises, optical rotation is lost, and the light from a backlight is intercepted. Thus, the position of a barrier pattern is controllable by applying voltage to the barrier electrode 110.

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[0031] Since the problem of a parallax barrier system differs in the angle which looks at each pixel of a left eye or a right eye shown in Fig.2 when the position of an eye moves, it is that what is called a cross talk that the pixel which should be essentially recognized visually by only the right eye can recognize visually now also to a left eye, for example arises. In order to cope with this, the position of the barrier may also be moved in accordance with movement of an eye. For the purpose, it is necessary to grasp the position of an eye first. This is called eye tracking. [0032] Fig.12 is a configuration diagram of eye tracking. In Fig.12, with the camera 1100, the position of human being's eye is measured and data is transmitted to the position transducer 1200. With the position transducer 1200, the data in which the position of an eye is shown is created and the data is transmitted to the barrier controller 1300. With the barrier controller 1300, the signal to the barrier electrode which should form the barrier is created, this signal is sent to the stereoscopic display device 1000 which has a liquid crystal parallax barrier panel, and the three-dimensional display doubled with movement of the position of an eye is performed. Although the camera has detected the position of eyes on these Descriptions, even if it uses other technology, such as infrared rays and an ultrasonic wave, the effect of the present invention is acquired. [0033] Fig.4 is a cross sectional view showing the liquid crystal parallax barrier panel in which the present invention in three-dimensional display equipment is applied. The width of the barrier which does not make light transmit is P, and the pitch of the barrier is about 2ps. Here, P is the pitch P of the pixel in a liquid crystal display panel. That is, the pitch of the barrier is twice [ about ] the pitch of a pixel. Although the width of the barrier is P in Fig.4, the width of the barrier has that it is larger than P. [0034] In Fig.4, a portion of hatching with the coarse barrier electrodes 111 and 112 is a portion which voltage is applied to an electrode, therefore light does not transmit.It is a region in which barrier is formed.The portion of hatching with the deep barrier electrodes 111 and 112 is a portion by which voltage is not applied to an electrode, and this portion is a portion which light transmits and has become an opening region. [0035] The barrier region is formed by the five 1st barrier electrodes 111 in Fig.4. The opening region is also formed by the five 1st barrier electrodes 111. The gap between the electrodes of the 1st barrier electrode 111 is buried by the 2nd barrier electrode 112. It is to prevent a cross talk from pixel information leaking and occurring from between the electrodes of the 1st barrier electrode 111 and the 1st barrier electrode 111. In Fig.4, a liquid crystal layer is inserted, and the common substrate 200 which has the common electrode 210 opposes with the barrier substrate 100, and is arranged. The common electrode 210 is formed in the common substrate 200 in common to each barrier electrode planate. [0036] Fig.5 (a) and Fig.5 (b) are the cross sectional views of the barrier substrate 100 showing the case where the position of a barrier pattern is moved in such a liquid crystal parallax barrier panel. Fig.5 (a) is the same as the barrier substrate 100 in Fig.4. Fig.5 (b) is a cross sectional view of the barrier substrate 100 at the time of moving a barrier pattern only P/10 to compensate for movement of the position of an eye in Fig.4. [0037]

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The portion turned on [ of the 1st barrier electrode 111 ] in Fig.5 (b), Or the portion come by off is moving rightward by one piece of the barrier electrode 111 in Fig.5 (a) to the portion turned on [ of the 1st barrier electrode 111 ], or the portion come by off. Therefore, when the interval of eyes is set to B and motions of an eye are 2B/10, the quantity of a cross talk is the same before the position of an eye moves. [0038] The barrier electrode 111 which forms a barrier region temporarily is not divided, but since only one case remains as it is in the position of a barrier pattern, a cross talk will increase. As shown the barrier electrode 111 in Fig.5 (a) and (b), even if it is divided on the other hand, when smaller than the pitch of the barrier electrode into which the migration length of the eye was divided, a cross talk increases [ before an eye moves ]. However, the quantity of this cross talk is small as compared with the case where the barrier electrode is not divided. [0039] Next, it describes about evaluation of the number of partitions of the barrier electrodes 111 and 112 using Fig.5 (a) and (b). As shown in Fig.5 (a), when the barrier is divided into ten by the 1st barrier electrode 111, voltage is applied to the five barrier electrodes 111 to make a black display, and the five barrier electrodes 111 are considered as a white display by considering it as the same electric potential as a common electrode. like Fig.5 (a), according to movement of the position of an eye, ** which applied voltage to 1 thru/or 5 of the 1st barrier electrode 111 should change like Fig.5 (b) so that voltage might be applied to 2 thru/or 6 of the 1st barrier electrode 111 Although it means that the optimal visibility position had moved at this time, this movement angle is defined as optimal viewing distance movement angle [ per viewpoint ] thetaB. [0040] Picture element pitch P corresponding to the right eye or left eye of a display panel when there is much number of partitions of the barrier and the ratio of barrier width to aperture width of optimal viewing distance movement angle thetaB per viewpoint is 1:1, The following formula can define by the interval Lg of the number of partitions S of the barrier, the center of the liquid crystal layer of a liquid crystal display panel, and the center of the liquid crystal layer of a liquid crystal parallax barrier panel. The number of partitions of the barrier defines it as being the number of partitions 10, when ten barrier electrodes are formed in the range 2P with which the barrier region and the opening region were made consistent, as shown in Fig.4 for example. thetaB=tan-1 [2P/SLg/1.5] A viewing area angle needs to design the optimal viewing distance movement angle. Fig.6 is an explanatory view of a viewing area angle. Fig.6 shows the emitting angle degree dependency of the cross talk at the time of fixing the barrier in a certain position. In Fig.6, a horizontal axis is an angle to a normal line direction of a liquid crystal parallax barrier panel.A vertical axis is the quantity of a cross talk.In Fig.6, although two graphs exist in the minus direction and plus direction of an angle, it is a graph showing the cross talk of a left eye or a right eye respectively. [0041] By Fig.6, the angle a right eye recognizes the pixel for right eyes to be, and the angle a left eye recognizes the pixel for left eyes to be mean being 5 times and -5 times to a panel normal line direction. Here, when the position of a barrier electrode moves, the graph showing the cross talk of a right eye and a left eye will also move in the same direction corresponding to a motion of a barrier electrode. [0042] In Fig.6, the emitting angle degree width which becomes below a value with a cross talk is defined as a viewing area angle. This corresponds to the transverse diameter of U shape graph. Although

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the viewing area angle was dependent on performance, structure, etc. of the barrier, when produced using the product used by general mobile computing devices, the viewing area angle which becomes less than cross talk 5% turned into 5 times. The viewing area angle from which a cross talk will be 3% or less turned into 3 times. [0043] It is desirable to satisfy the following conditions from this result. It is more desirable than thetaB<=5 degree, thetaB<=3 degree That is, it is desirable to make an optimal viewing distance movement angle smaller than a viewing area angle. If it does so, even if it moves a viewpoint, a cross talk will not deteriorate largely. This result to the number of partitions S S>=2P/[(Lg/1.5) tan5] (1) ******** -- things are desirable S>=2P/[(Lg/1.5) tan3] (2) ******** -- things are more desirable. [0044] It is as follows when it evaluates with a typical product. As shown in Fig.1, Lg is the distance of the center to center of the center of the liquid crystal layer of a liquid crystal display panel, and the liquid crystal layer of a liquid crystal parallax barrier panel. This distance may be considered to be the sum total of the thickness of the counter substrate of a liquid crystal display panel, the thickness of an inside polarizing plate, and the thickness of a barrier panel. In the thickness of the counter substrate of a liquid crystal display panel, and the thickness of a barrier panel, if the thickness of 0.2 mm and an inside polarizing plate shall be 0.1 mm respectively, Lg will be set to 0.5 mm. Here, a picture element pitch is a pitch of the combination of each sub pixel part of R, G, and B. P will be set to 0.09 if the width of each sub pixel shall be 0.03 mm. Supposing it permits a cross talk 5%, thetaB will be 5 times and tan5 will be set to 0.09. [0045] It will be set to 0.09x2 / [(0.5/1.55) x0.09] =6 if these values are assigned to the right-hand side of a formula (1). Similarly, if these values are assigned to a formula (2), since tan3 is 0.05, it will be set to 10.8. That is, supposing it permits a cross talk 5%, the number of partitions S will become six or more, and supposing it permits a cross talk 3%, ten or more will be the number of partitions. Although the above example is a typical example, many products using a parallax barrier to a dimension some differences **, By making the number of partitions or more into six, a cross talk can be stopped to 5% or less, and a cross talk can be stopped to 3% or less by making the number of partitions or more into ten. [0046] Although the 1st barrier electrode 111 and the 2nd barrier electrode 112 are formed with the material called a transparent electrode which is represented by ITO and IZO, it is not completely transparent actually and some absorption of light has arisen. In this case. A difference arises in transmissivity in the place with which the 1st barrier electrode 111 and the 2nd barrier electrode 112 have lapped, and the place with which it has not lapped. That is, a portion with small transmissivity arises periodically. In other words, a dark portion arises periodically. [0047] Moire occurs with the periodicity of this liquid crystal parallax barrier panel 10, and the periodicity formed by the pixel of the liquid crystal display panel 20. Then, the relation with the lap width of moire, the 1st barrier electrode 111, and the 2nd barrier electrode 112 was evaluated. Fig.7 is the divided expanded sectional view of the 1st barrier electrode 111 and the 2nd barrier electrode

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112. In Fig.7, the cycle of the divided 1st barrier electrode 111 is BE, and the lap width of the 1st barrier electrode 111 and the 2nd barrier electrode 112 is BA. [0048] Fig.8 is the figure by which the relation of the level of BA/BE and moire was evaluated. In Fig.8, a horizontal axis is BA/BE and a vertical axis is a degree of moire. A vertical axis is organic-functions evaluation of moire. In Fig.8, when a vertical axis is 2, it is a level which can recognize moire, and in the case of 1, it is a level which is not worried although moire is visible.In the case of 0, it is a level which cannot recognize moire visually.If BA/BE is 0.2 or less as Fig.8 shows, it can be said that it cannot recognize, but 0.3 or less are a permissible level practical, and moire is a region where a problem has moire practical strongly by 0 or 4 or more. [0049] As mentioned above, by considering it as the region which makes the number of partitions S of the barrier the region which fills a formula (1) in this example, and fills a formula (2) more desirably, Little three-dimensional display of a cross talk can be performed, and the cycle of the divided 1st barrier electrode 111 is BE further, When it is made into BA, the lap width of the 1st barrier electrode 111 and the 2nd barrier electrode 112 by making BA/BE into 0.3 or less [ more preferably ] and 0.2 or less, It can switch and the two-dimensional image and three-dimensional image using a liquid crystal parallax barrier panel with little generating of moire can realize an easy liquid crystal display. In Fig.7, although lap width BA of the 1st barrier electrode and the 2nd barrier electrode may not become the same for the left and the right with dispersion in manufacture, etc., the average of left-hand side BA and right-hand side BA may be taken in this case. [Work example 2] [0050] This example is the composition about the case where it is a liquid crystal parallax barrier panel when the width of the 2nd barrier electrode 112 is smaller than the interval of the 1st barrier electrode 111 and the 1st barrier electrode 111 which were divided. The conditions keep a cross talk from increasing even if the width of the sum total of a barrier region and an opening region divides the barrier pitch 2P which is twice [ about ] the picture element pitch P and moves the starting point using eye tracking are the same as the case of the working example 1. [0051] Fig.9 is an expanded sectional view showing the relation between the divided 1st barrier electrode 111 and the 2nd barrier electrode 112 in this example. In Fig.9, although formed with a transparent electrode [ like ITO or IZO ] whose 1st barrier electrode 111 and 2nd barrier electrode 112 are also, Since transmissivity is not 100%, such a transparent electrode also differs [ portion / the portion in which the 1st barrier electrode 111 or the 2nd barrier electrode 112 exists, and / in which neither the 1st barrier electrode 111 nor the 2nd barrier electrode 112 exists ] in transmissivity. namely, a portion with high transmissivity -- in other words, a bright portion arises periodically. [0052] If the periodicity of the transmissivity in this liquid crystal parallax barrier panel 10 and the periodicity formed by the pixel of the liquid crystal display panel 20 cause interference, moire will occur. Then, the relation with the gap between moire, the 1st barrier electrode 111, and the 2nd barrier electrode 112 was evaluated. In Fig.9, the pitch of the 1st barrier electrode 111 is BE, and the width of the gap of the 1st barrier electrode 111 and the 2nd barrier electrode 112 is BB. [0053]

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Fig.10 is the figure by which the relation of the level of BB/BE and moire was evaluated. In Fig.10, a horizontal axis is BB/BE and a vertical axis is a degree of moire. A vertical axis is organic-functions evaluation of moire. In Fig.10, when a vertical axis is 2, it is a level which can recognize moire, and in the case of 1, it is a level which is not worried although moire is visible.In the case of 0, it is a level which cannot recognize moire visually.if BB/BE is 0.2 or less as Fig.10 shows, moire cannot be recognized, but if it comes out 0.3 or less, it will be a permissible level practical, and it can be said by 0 or 4 or more that it is a region where a problem has moire practical strongly. [0054] As mentioned above, by considering it as the region which makes the number of partitions S of the barrier the region which fills a formula (1) in this example, and fills a formula (2) more desirably, Can perform little three-dimensional display of a cross talk, and it sets the cycle of the divided 1st barrier electrode 111 to BE further, When the gap between the 1st barrier electrode 111 and the 2nd barrier electrode 112 is set to BB, by making BB/BE into 0.3 or less [ more preferably ] and 0.2 or less, It can switch and the two-dimensional image and three-dimensional image using a liquid crystal parallax barrier panel with little generating of moire can realize an easy liquid crystal display. In Fig.9, although gap BB of the 1st barrier electrode and the 2nd barrier electrode may not become the same for the left and the right with dispersion in manufacture, etc., the average of left-hand side BB and right-hand side BB may be taken in this case. [Work example 3] [0055] In the working examples 1 and 2, the width of the 1st barrier electrode 111 has described largely the 1st barrier electrode 111 and the 2nd barrier electrode 112 in a barrier panel about composition when the width of the 2nd barrier electrode 112 is small. However, also in the case of a liquid crystal parallax barrier panel in case the 1st barrier electrode 111 and the 2nd barrier electrode 112 have the same width, the above description is applicable. The composition of the barrier electrode of the Fig.4 in which the working example 1 is shown divides the barrier pitch 2P into ten by the 1st barrier electrode 111, the 2nd barrier electrode 112 follows in footsteps of electric potential of the corresponding 1st barrier electrode 111, and electric potential is changing. [0056] On the other hand, in the Fig.11 in which this example is shown, the barrier pitch 2P is divided into ten by the 1st barrier electrode 111 and the 2nd barrier electrode 112. And the 1st barrier electrode 111 and the 2nd barrier electrode 112 are changing independently. however, a ratio with width BA of the lap of the pitch BE of the 1st barrier electrode 111, the 1st barrier electrode 111, and the 2nd barrier electrode 112 -- the relation between BA/BE and moire is the same with having described in working example 1. The relation of BB/BE and moire when gap BB exists between the 1st barrier electrode 111 and the 2nd barrier electrode 112 is the same with having described in working example 2. [0057] Although it is a matter common to the working examples 1 thru/or 3, the same thing of the transmissivity to the white light of the 1st barrier electrode 111 and the 2nd barrier electrode 112 is desirable. When the transmissivity of the 1st barrier electrode 111 and the 2nd barrier electrode 112 differs, periodicity occurs in transmissivity and this causes moire. However, it may be difficult to coincide completely the transmissivity of the first barrier electrode 111 and the second barrier electrode 112 from dispersion in manufacture, etc. In that case, as for the

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transmissivity to the white light of the first barrier electrode 111 and the second barrier electrode 112, it is desirable to make it in agreement within 5%. [0058] When the material of the first barrier electrode 111 and the second barrier electrode 112 is the same, the transmissivity of the 1st barrier electrode 111 and the 2nd barrier electrode 112 is determined by film thickness in many cases. When it carries out, and the film thickness of the first barrier electrode 111 and the second barrier electrode 112 similarly uses ** or it similarly cannot do, it is desirable to make it in agreement within 10%. Since the transmissivity of a barrier electrode changes also by factors other than film thickness, it is possible to make transmissivity into less than 5% for film thickness also as less than 10%. [0059] When changing the material of a transparent electrode by the 1st barrier electrode 111 and the 2nd barrier electrode 112, it is desirable to change film thickness and a film formation condition, to arrange transmissivity as much as possible, and to prevent generating of the periodicity of a luminosity. [0060] In the above working example, a first barrier electrode overlaps a second barrier electrode in the both sides, or it described the example to which a gap exists between second electrodes. However, a first barrier electrode overlaps a second barrier electrode in the one side, and in other one side, the principle described in the above working example can be applied, also when a gap exists between second barrier electrodes. [0061] In the above description, although described taking the case of the liquid crystal display panel as a display panel, also when a display panel is an organic EL display device, the present invention can be applied. [Explanations of letters or numerals] [0062] 10 -- a liquid crystal parallax barrier panel, 20 -- liquid crystal display panel, and 100 -- barrier substrate, 110 -- a barrier electrode, the 111 -- 1st barrier electrode, and the 112 -- 2nd barrier electrode, 120 -- an insulator layer, a 150 -- liquid crystal element, a 200 -- common substrate, and 210 -- common electrode 300 -- binder, 400 -- a TFT substrate, a 500 -- counter substrate, the polarizing plate in 700 --, and the polarization-on 800 -- version, 1000 -- a stereoscopic display device, a 1100 -- camera, and 1200 -- position transducer, 1300 -- a barrier controller and BA -- the overlap width of the 1st barrier electrode and the 2nd barrier electrode, and BB -- the gap between the 1st barrier electrode and the 2nd barrier electrode, and BE -- the pitch of the 1st barrier electrode, and L -- the pixel for left eyes, and R -- the pixel for right eyes

[Drawing 1]

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