DIGITAL TV DEVISION DIGITAL TV DEVISION DAEWOO ELECTRONICS CO., LTDDAEWOO ELECTRONICS CO., LTD

PLASMA DISPLAY PANEL (PDP)

DAEWOOD I G I T A L

2002. 5

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WHAT IS PLASMA DISPLAY PANEL?

1. PDP refers to plasma display panel. It was named as PDP by the faculty of University of Illinois(UIUC) as they first made it. It was made by combining physical phenomenon called 'plasma' and electric device into a form of panel.Generally speaking, plasma refersto ionized gas. However, it means 'glow discharge' in PDP business.

2. In the past, PDP was monochromatic(orange), nowadays it can generate full color by glowdischarge in the 'excited spaces'.(UV from excited spaces react with fluorescent materialswhich then emit visible rays)

3. PDP let us watch figures or letters through image process and digital&analogue drivingcircuits. In PDP, material science and high technique are combined together.

4. In 1927, a plasma display panel was applied to TV rather than CRT. and its concept was established. In 1964, AC PDP was made by University of Illinois for the first time. In early1970's, George Dick invented 'surface type discharge' which is mainly used

for current AC PDP.From early 1990’ s, many companies have developed the AC PDP that can be selled inconsumer market.

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< The Principle of PDP>

1. The plasma display panel(PDP) can be thought of as a descendant of the neon lamp.

2. The term plasma refers to a gas that consists of electrons, positively charged particles known as ions, and neutral particles.

3. The PDP has sometimes been referred to as a gas-discharged display because itoperates by passing electricity through neon gas, causing it to become 'charged' temporarily : light is produced when the gas spontaneously discharges.

4. Plasma display panels can also be viewed as a series of fluorescent lamps. The displays operate at high voltages, low currents, and low temperatures, resulting in long operating lifetimes (typical 15000 hours, max 30000 hours).

5.Inside the plasma panel, as series of red, green, and blue cells are grouped in a precise matrix.These cells are activated individually, unlike standard CRTs or LCDs,this means that they emit light individually creating a precise pixel on the viewing area.

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Plasma

UVPhosphor(R,G,B)

Front Glass Substrate[*]

Visible LightAddress Electrode

Back Glass Substrate

Sustain Electrode

Dielectric Layer

Protection Layer(MgO)

Dielectric Layer

Visible Light

Bus Electrode

Under Layer

Barrier rib

Barrier Rib

(Front Glass Substrate)

Sustain Electrode

Dielectric LayerProtection Layer(MgO)

Dielectric Layer

Bus Electrode

Under Layer

Phosphor(R,G,B) Address Electrode

(Back Glass Substrate)

< The Structure and Principle of AC-PDP >

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< The Driving Method of AC-PDP >

1. As of early 1990, PDP was used as monochromatic monitors with simple X-Y matrix driving system and 'Refresh'method.

2. Nowadays, PDP can display natural colors through sub-field driving method.That is called “ ADS (Address Display Seperated) Method” .

3. 1 TV field consists of 8 sub-fields (SF1-SF8).And each sub-field has different ratio of brightness( 1, 2 , 22 23, 24, 25, 26, 27 ).

4. While the brightness of CRT is determined by the intensity of electron beams,the brightness of PDP is determined by controlling the frequency of glow dischargeduring the time interval called "1 TV frame".

[ Brightness display types of PDP and CRT ]

[ Driving of sub-field ]

Display Device Mechnism of brightness(gradation) display

1 TV Frame

1 SF 2 SF 3 SF 4 SF 5 SF 6 SF 7 SF 8 SF

1 TV Frame

AddressDuration

1 2 4 8 16 32 64 128

Brightness

PDP

CRT

Brightness

Time 1/60 sec

Time 1/60 sec

Simulation Movie

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6

Why Digital?

• High Quality Video and Audio • Interactive Services

AnalogAnalog

Normal Quality Video

Unilateral InformationPassive Info Service

1 program per channel Multiple programs per channelDatacasting

Interactive Info ServiceT-CommerceInternet

DigitalDigital

Better PtictureBetter SoundWide Screen (16:9)

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Display Types

Orga-nicEL

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Comparison Chart

CRT Monitor

LCD Monitor ViewingAngle

MagneticInterference

PowerConsumption

Brightness

Contrast

Gray scale

Color reproducibility

ColorTemperaturePoint

DefectImageSticking

Uniformity

Resolution

Depth

Weight

LargeScreen

SmallScreen

Good Bad

5 4 3 2 1

PDP Monitor

Rear Projection

Projector

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Advantages of Plasma Display

10

Type LCD CRT PDP Projection Projector

Size 2" ~ 21" 14"~38" 42"~65" 45"~65" 100"~300"

Purpose PersonalPurpose

PublicPurpose

Small &Medium size All

Medium &Large size

Size

Remark Good forSmall Screen PDP will dominate

Good forPublic

Purpose

Home & Semi Public Purpose

Trend

Overview of Display Device

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The Outlook

5 15 25 35 45 55 65 Over 100

CRT Direct-ViewCRT DirectCRT Direct--ViewView

LCDLCD PDPPDP

Rear ProjectionRear ProjectionRear Projection

ProjectorProjector

LCDLCDLCD

CRT DirectCRT Direct--ViewView

PDPPDPPDP

Rear ProjectionRear Projection

(Screen Size)

ProjectorProjector

5 15 25 35 45 55 65 Over 100

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Display Market Forecast

Display Market(K units)

18,480

198,900

200LCD

CRT

PDP

'99 01 03

31,400

225,730

700 49,000

244,000

2,600

217,580

257,830

295,600

Source : IDC, EIAJ

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Plasma Panel Driver ModuleA/V+Power Module

Plasma Display Module

DisplayDevice

DispayDriver

OperatingParts

PDP Type PlasmaPanel

DreiverModule

A/V + PowerModule

CRT Type CPT DYElec./Gun Main PCB

PLASMA DISPLAY PANEL

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Panel Makers

FHP

Panasonic

Pioneer

NEC

DAEWOODAEWOO

LG

Samsung

Established Japanese Manufacturers

The only “proven” Korean manufacturer

Extensive Pre-Marketing; butProducts yet to be proven.

There are numerous set makers,but only a handful of Panel + Driver Module Manufacturers.

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Competitive Priority

1. Ultra-Slim & Light Design- Excellent heat transfer by self air circulation flow- High efficiency power supply module- No fan- Attachable speaker system

2. Outstanding Picture Quality- Adaptive sustain control for optimized picture contrast- image processing for better grayscale expression- Optimum weight pattern for False contour correction- 3D comb filter ( NTSC )- PLE ( Peak Luminance Enhancement )

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3. High Quality Sound- 8W+8W Hi-Fi Stereo Speaker Output

4. Various Picture Control- Available for very kinds of inputs(Video, PC, DTV/DVD)- OSD : 9 Language- Zoom up- Freeze Picture- Scaling (DVD, Video): Normal, Wide, Panorama, Letter Box

5. Program Upgrade Available

6. Reliability- Safety Standards: UL, CSA, CE, CCIB, etc- High temperature & Humidity test- Test for each development step- Power ON/OFF Test: Over 100 thousand times- Mechanical Test: Drop, Vibration, etc

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Daewoo PDP Business History

• 1994 Start PDP Business

• 1996 Developed Prototype PDP Module with OEC(Orion Electronics)

• 1997 Start Product Development (42 inch, More than 500 Patents)

• 1998 Launched 1st Model (DSP-4260W, PDP-TV)

• 1999 Mass Production for KOREA (DSP-4260W, PDP-TV)

• 2000 Developed 2nd Model (DSP-4210GM, PDP-Monitor)

• 2001 Mass Production (DSP-4210GM, PDP-Monitor)

• 2001 Developing 3rd Model (MP Start 1Q 2002)