Daewoo Plasma Training Schematic

PLASMA DISPLAY PANEL

(PDP)

DAEWOO

DAEWOO ELECTRONICS CO., LTD

DAEWOO ELECTRONICS CO., LTD

D I G I T A L

2002. 5

DIGITAL TV DEVISION

DIGITAL TV DEVISION

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 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 materials
which 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.

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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 it

operates by passing electricity through neon gas, causing it tobecome '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, unlikestandard CRTs or LCDs,
this means that they emit light individually creating a precisepixel on the viewing area.

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Bus
Electrode

Protection
Layer(MgO)

< The Structure and Principle of AC-PDP >

(Front Glass Substrate)

Sustain

Electrode

Dielectric Layer

(Back Glass Substrate)

Barrier Rib

Dielectric
Layer

Phosphor(R,G,B)

Under Layer

Address Electrode

Protection
Layer(MgO)

Barrier rib

Phosphor
(R,G,B)

Dielectric Layer

3

Visible Light

Front Glass Substrate[*]

Plasma

UV

Visible Light

Back Glass Substrate

Dielectric Layer

Bus
Electrode

Sustain
Electrode

Address
Electrode

Under Layer

< 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".

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[ Brightness display types of PDP and CRT ]

Simulation Movie

Display Device

PDP

CRT

[ Driving of sub-field ]

Address

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

Mechnism of brightness(gradation) display

Brightness

Time 1/60 sec

Brightness

Time 1/60 sec

1 TV Frame

Duration

1 2 4 8 16 32 64 128

1 TV Frame

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Why Digital?

• High Quality Video and Audio

• Interactive Services

Analog

Analog

 Normal Quality Video

 Unilateral Information
 Passive Info Service

 1 program per channel

Digital

Digital

 Better Pticture
 Better Sound
 Wide Screen (16:9)

 Interactive Info Service
 T-Commerce
 Internet

 Multiple programs per channel
 Datacasting

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Display Types

Orga

-nic
EL

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Comparison Chart

LCD Monitor

CRT Monitor

PDP Monitor

Rear Projection

Projector

Resolution

Weight

Depth

Small

Screen

Large
Screen

54321

Good Bad

Viewing

Angle

Magnetic
Interference

Power
Consumption

Brightness

Contrast

Gray scale

Uniformity

Image
Sticking

Point

Defect

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Color
reproducibility

Color
Temperature

Advantages of Plasma Display

9

p

Overview of Display Device

Type

Size

Purpose

Trend

LCD CRT PDP Projection Projector

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

Personal

Purpose

Home & Semi Public Purpose

Small &

Medium size

Medium &

Large size

All

Size

Public

Purpose

Remark

Good for

Small Screen

PDP will dominate

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Good for

Public

Pur

ose

The Outlook

CRT Direct--

CRT Direct

CRT Direct-View

LCD

LCD

5 15 25 35 45 55 65 Over 100

5 15 25 35 45 55 65 Over 100

CRT Direct--

CRT Direct

LCD

LCD

LCD

View

View

View

View

Rear Projection

Rear Projection

Rear Projection

PDP

PDP

Rear Projection

Rear Projection

PDP

PDP

PDP

Projector

Projector

(Screen Size)

Projector

Projector

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Display Market Forecast

Display Market

(K units)

257,830

700

295,600

2,600

49,000

PDP

LCD

CRT

217,580

200

18,480

198,900

31,400

244,000

225,730

'99 01 03

Source : IDC, EIAJ

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PLASMA DISPLAY PANEL

Plasma Display Module

Plasma Panel Driver Module

A/V+Power Module

PDP Type

CRT Type

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Display

Device

Plasma

Panel

CPT

Dispay

Driver

Dreiver
Module

DY

Elec./Gun

Operating

Parts

A/V + Power

Module

Main PCB

Panel Makers

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

FHP

Panasonic

Established Japanese Manufacturers

Pioneer

NEC

DAEWOO

DAEWOO

LG

Samsung

The only “proven” Korean manufacturer

Extensive Pre-Marketing; but
Products yet to be proven.

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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)

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