LG XXXXX Service Manual

LG PDP Display

Index

1.

1. What is Plasma?

What is Plasma?

1. 1.

What is Plasma? What is Plasma?

2. What is PDP?

2. What is PDP? 2. What is PDP?

(1) How does it work?

(1) How does it work?(1) How does it work?

(2) Structure of AC PDP

(2) Structure of AC PDP (2) Structure of AC PDP

(3)

(3) Flow chart of a PDP fabrication

Flow chart of a PDP fabrication

(3) (3)

Flow chart of a PDP fabricationFlow chart of a PDP fabrication

(4) Why is it better?

(4) Why is it better?(4) Why is it better? (5) New Possibilities

(5) New Possibilities

(5) New Possibilities (5) New Possibilities

in Visual Communication

in Visual Communicationin Visual Communication

(6) Market Segments

(6) Market Segments(6) Market Segments (7)

(7) LGE

LGE’s

s Plasma Display Panels.

(7) (7)

LGELGE

3. LG PDP Display(TV & MNT)

3. LG PDP Display(TV & MNT)3. LG PDP Display(TV & MNT)

(1)~(4)General Specifications

(1)~(4)General Specifications(1)~(4)General Specifications

(5) Option Items(Accessory)

(5) Option Items(Accessory) (5) Option Items(Accessory) (6) Diagram of connection with

(6) Diagram of connection with

(6) Diagram of connection with (6) Diagram of connection with

other peripheral

other peripheralother peripheral

4. Special Features of LG PDP Display

4. Special Features of LG PDP Display4. Special Features of LG PDP Display

5. RS

5. RS----232C

5. RS5. RS

6. Q&A

6. Q&A6. Q&A

232C

232C232C

Plasma Display Panels.

ss

Plasma Display Panels.Plasma Display Panels.

* Internal use only!

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DDM Research Lab.

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What is Plasma

1.

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Plasma is by far the most common form of matter.

Plasma in the stars and in the tenuous space between them makes up over 99% of the visible universe and perhaps most of that which is not visible.

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Plasma consists of a collection of free-moving electrons and ions - atoms

Energy is needed to strip electrons from atoms to make plasma. The energy can be of various origins:thermal, electrical, or light (ultraviolet light or intense visible light from a laser).

With insufficient sustaining power, plasmas recombine into neutral gas.

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Plasma can be accelerated and steered by electric and magnetic field s which allows

it to be controlled and applied. Plasma research is yielding a greater understanding of the universe.

It also provides many practical uses: new manufacturing techniques, consumer products, and the prospect of abundant energy.

Ex.) Lightning, Aurora, Nebula, Flames, Neon Sign, Solar core ……..

Ex.) Lightning, Aurora, Nebula, Flames, Neon Sign, Solar core

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that have lost electrons.

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2. What is Plasma Display Panel(PDP)?

(1) How does it work?

Plasma display panel is the latest display technology and the best way to achieve flat panel displays with excellent image quality and large screen sizes that are easily viewable in any environment. The PDP can be thought of as a descendant of th e neon lamp

PDP is an array of cells, known as pixels, which are composed of 3 sub-pixels, corresponding to the colors

red, green, and blue. Gas in a plasma state is used to react with phosphors in each sub-pixel to produce

colored light (red, green, or blue).

devices such as televisions and standard computer monitors. You get the rich, dynamic colors that you expect. Each sub-pixel is individually controlled by advanced electronics to produce over 16 million different colors. All of this means that you get perfect images that are easily viewable in a display that is less than 5 inches thick.

These phosphors ar e the same types used in Cathode Ray Tube(CRT)

Visible Light

and it can be also be view ed as a series of fluo rescent lamps.

Dielectric

Protection Layer(MgO)

Barrier Rib

Phosphor(R,G,B)

Dielectric Layer

Front Glass Substrate

Plasma

UV

Visible Light

Back Glass Substrate

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Layer

Bus Electrode Sustain

Electrode

Address Electrode

Under Layer

Supply Pulse

Voltage

Gas Discharge

UV Generate

Visible Luminate

Display

(2)Structure of AC PDP

Screen

Front Glass

Rear Glass

Protecting Layer

(Ag, Cu)

Phosphors

(R, G, B)

(PbO)

Penning Mixtures

(Ne+Xe/Ar)

(Ag,Cu,Au)

(Indium Tin Oxide)

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Structure of AC PDP

< Front Glass> < Back Glass >

ITO

Electrode

(MgO)

Protection

Phosphor

(R,G,B)

ITO Electrode

Barrier Rib

BUS

Electrode

W/B

Dielectric

Electrode

Visible Light

Plasma

UV light

Fluorescent

Bus Electrode

Barrier Rib

Address Electrode

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Glass

Display Dot Diagram of 40” PDP

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7/58

Brightness Control

Brightness Control of PDP and CRT

Mechanism of Brightness ControlDisplay Device

PDP

Bright.

..... .....

time

CRT

Bright.

time

1/60sec

Subfield Drive control Brightness Control of PDP and CRT

Subfield Drive control

TV Frame

1

128

64

32

16

8

4

1

2

1SF2SF 3SF 4SF 5SF 6SF 7SF 8SF

A PDP : Recharge times for 1 TV Frame A CRT : Electron Beam

1 TV Frame

Address

Display duration

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(3)Flow chart of a PDP fabrication

Front Glass

Sustain Electrode

Bus Electrode

Dielectric Layer

Protection Layer

(ITO)

(Ag,Cu,

Au)

(PbO)

(MgO)

Sealing

Rear Glass

Address

Electrode

Dielectric Layer

White Back

(Screen Printing)

Barrier Lib

(Sand Blasting)

Phosphor layer

(Ag, Cu)

(PbO)

(130B)

(R, G, B)

Exhausting &

Filling Gas

Aging

PDP Panel

(Xe+Ne/Ar)

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(4) Why is PDP better?

Features End User Benefits

T he B e st D igita l Convergence Display Today

H igh re so lu tion Excellent data and video capability Viewable in normal room light Wid e c o mp a t ib ility

Thin Form Factor M inimal im pact on the room

Hang it on the w all. H ang it anywhere. P ut it an y w he re .

Flat D isplay Perfect focus

Perfect im age uniform ity No optics, no image distortion

New P lasm a Technology CR T Colors

Broad viewing angle(160°↑) No m agnetic interference Viewable in normal room light Millio n s o f colo r s (16. 7 mil.)

Viewable up close or far away PDP TV (Inte llig e n t I ma g e s )

In te llig e n t e le c tro n ic s

Automatically resizes any incoming signal

Integrated power supply

High resolution form at

Video or computer

Elegant design that makes a technology

statement

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-. Advantages of PDP

11/58

-.Comparison of others

Projection

TV

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(5) New Possibilities in Visual Communication

=> Home Theatre, A digital “poster” for the showroom, Visual guide or digital art display, Information

display in reception areas, Business presentations, Easy-to-see monitor for fitness club

Home Theatre

Commercial Shop Public Display

Information Board Conference Room

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Sports Center

(6) Market Segments

Pixels

(10K)

Orga

-nic EL

(Inchs)

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-. PDP makers(’2000/’2001)

Module Maker

FHP

Pioneer

Category Set Maker Category Set Maker

Module Maker

42” W-VGA

25” S-XGA Fujitsu

42” A LiS

32” ALiS(HDTV) 37” ALiS(HDTV)

40” VGA (Drop)

50” W-XGA

FujitsuPhilips,Grundig Sony, etc.

Hitachi Fujitsu-General

Sony Hitachi, etc.

Sony Philips Hitachi Sanyo, etc.

Pioneer Richo

Pioneer Sharp (Toshiba) (Fujitsu-General) (Sony)

General

NEC

Panasonic

TV Model (37”/42” HDTV)

50” W-XGA NEC

50” W-VGA NEC 42” W-VGA NEC,JVC

33” VGA ?

37” W-VGA Panasonic

42” W-VGA

NEC

Thomson Sanyo (+Sony)

Panasonic (Toshiba)

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79K

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30” class(37”?) HDTV

Pioneer

LGE : M P(‘01.03~),Capa.:150K

SDI : MP(‘01.07~),Capa.: 90K

Orion : Pilot Line~

50” W-XGA

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Panasonic

’00/’01 PDP Monitor / TV Q’ty

* Count the Hearing of Forwarding Results for each Makers

’00 Sales : 157K units

’01 Sales : 350K units

Use

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PDP Module Maker Share

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* Source : TSR

‘00(157K)

‘01(350K)

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16/58

-. Forecasting of Display Products

Unit(10K)

* Source :TSR(99.10) / Nomura(99.6) &

Pre-estimate by LG(2000.2)

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(7) LGE’s Plasma Display Panels.

Digital broadcasting is a revolution of TV technology in coming 2000 year. Up to now, Plasma Display TV is the best candidate for the High Definition Digital TV screen in a large size(36 to 60 inch). Since 1996, LGE has invested lots of effort to develop AC Plasma Display Panels for the application of the digital TV screen.

A 40-inch AC PDP with VGA resolution and 4:3 aspect ratio was developed 1997. And 50-inch XGA panel was also demonstrated at Korea Electr onics show in 1998. It is believe that PDPs are most competitive display device in the range of 40 to 60-inch diagonal sizes. However, to achieve a 60-inch panel, several technical obstacles such as glass distortion, uniformity, etc, should be overcome.

LGE has deve loped the key technologies for the fabricat ion of the 60-inch PDP and succeeded in demonstrating a 60-inch PDP with XGA(HD) resolution at Korea Electronics show in 1998 and Asia Display ‘98.

Items Screen Size

Aspect Ratio Active Area(mm) No. of Pixels Cell pitch(Green Cell) Peak Brightness Contrast ratio No. of Color Viewing Angle Efficiency Life time Power Consumption Pressure(Operational) Weight(Net/Gross)

Specifications of Module

60” PDP(XGA) 40” PDP(VGA) 42” PDP(Wide VGA)

(Tentative) 60 inch diagonal 16 : 9

1318.5(H)x744.5(V) 1280(H) x 720(V)

0.347 x 1.032mm 400 cd/m²(typ.) 500:1(dark room)

16.7 million 160 º >1.6lm/w >25,000 hour 500W(Typ.) 800 ~ 1100 hPa 36Kg / 53.5 Kg

40 inch diagonal 4 : 3 805(H)x601(V) 640(H) x 480(V)

0.417 x 1.252mm 750 cd/m²(typ.) 600:1(dark room)

16.7 million 160 º >1.6lm/w >25,000 hour 210W(Typ.) 800 ~ 1100 hPa 18Kg / 26 Kg

42 inch diagonal 16 : 9 920(H)x518(V) 852(H) x 480(V)

0.360 x 1.080mm 550 cd/m²(typ.) 700:1(dark room)

16.7 million 160 º >1.6lm/w >25,000 hour 190W(Typ.) 800 ~ 1100 hPa 18Kg / 26 Kg

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