Daewoo Plasma Training Manual [ET]

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DIGITAL TV DEVISIONDIGITAL TV DEVISIONDAEWOO ELECTRONICS CO., LTDAEWOO ELECTRONICS CO., LTD

PLASMA DISPLAY PANEL

(PDP)

DAEWOOD I G I T A L

2002. 5



1

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 phenomenoncalled 'plasma' and electric device into a form of panel.Generally speaking, plasma refers

to 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 glow

discharge 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 driving

circuits. 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 in

consumer market.



2

< The Principle of PDP>

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

2. The term plasma refers to a gas that consists of electrons, posit ively charged

part icles known as ions, and neutral part icles.

3. The PDP has some times been referred to as a gas-discharged display because it

operates by passing electr icity through neon gas, causing i t to become 'charged'

temporar i ly : l ight is produced when the gas spontaneously discharges.

4. Plasma display panels can also be viewed as a ser ies of f luorescent lamps. The

displays operate at high voltages, low currents, and low temperatures, result ing in

long operat ing l i fetimes ( typical 15000 hours, max 30000 hours).

5.Inside the plasma panel, as ser ies of red, green, and blue cel ls are grouped in a

precise matr ix.These cel ls are act ivated individually, unlike standard CRTs or LC Ds,

this means that they emit l ight individually creat ing a precise pixel on the viewing area.



3

Plasma

UVPhosphor(R,G,B)

Front Glass Substrate[*]

Visible LightAddressElectrode

Back Glass Substrate

SustainElectrode

Dielectric Layer

ProtectionLayer(MgO)

Dielectric Layer

Visible Light

Bus

Electrode

Under Layer

Barrier rib

Barrier Rib

(Front Glass Substrate)

Sustain

Electrode

Dielectric LayerProtectionLayer(MgO)

Dielectric

Layer

BusElectrode

Under Layer

Phosphor(R,G,B) Address Electrode

(Back Glass Substrate)

< The Structure and Principle of AC-PDP >



4

< 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 discharge

during 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

Br i gh

t n e s s

PDP

CRT

Br i gh t n e s s

Time 1/60 sec

Time 1/60 sec

Simulation Movie

5



6

Why Digital?

• High Quality Video and Audio

• Interactive Services

AnalogAnalog

Normal Quality Video

Unilateral Information

Passive Info Service

1 program per channel Multiple programs per channel

Datacasting

Interactive Info Service

T-Commerce

Internet

DigitalDigital

Better Pticture

Better Sound

Wide Screen (16:9)



7

Display Types

Orga

-nicEL



8

Comparison Chart

CRT Monitor

LCD Monitor Viewing

AngleMagnetic

Interference

Power

Consumption

Brightness

Contrast

Gray scale

Color

reproducibility

Color

TemperaturePoint

Defect

Image

Sticking

Uniformity

Resolution

Depth

Weight

Large

Screen

Small

Screen

Good Bad

5 4 3 2 1

PDP Monitor

Rear Projection

Projector



9

Advantages of Plasma Display



10

Type LCD CRT PDP Projection Projector

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

Purpose

Personal

Purpose

Public

Purpose

Small &

Medium size All

Medium &Large size

Size

Remark Good for

Small ScreenPDP will dominate

Good for

Public

Purpose

Home & Semi Public Purpose

Trend

Overview of Display Device



11

The Outlook

5 15 25 35 45 55 65 Over 100

CRT Direct-ViewCRT DirectCRT Direct--ViewView

LCDLCD PDPPDP

Rear ProjectionRear ProjectionRear Projection

Projector Projector

LCDLCDLCD

CRT DirectCRT Direct--ViewView

PDPPDPPDP

Rear ProjectionRear Projection

(Screen Size)

Projector Projector

5 15 25 35 45 55 65 Over 100



12

Display Market Forecast

Display Market

(K units)

18,480

198,900

200

LCD

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



13

Plasma Panel Driver ModuleA/V+Power Module

Plasma Display Module

Display

Device

Dispay

Driver

Operating

Parts

PDP Type Plasma

Panel

Dreiver

Module

A/V + Power

Module

CRT Type CPTDY

Elec./GunMain PCB

PLASMA DISPLAY PANEL



14

Panel Makers

FHP

Panasonic

Pioneer

NEC

DAEWOODAEWOO

LG

Samsung

Established Japanese Manufacturers

The only “proven” Korean manufacturer

Extensive Pre-Marketing; but

Products yet to be proven.

There are numerous set makers,

but only a handful of Panel + Driver Module Manufacturers.



15

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 )



16

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



17

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)

Daewoo Plasma Training Manual [ET]

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