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8/8/2019 Daewoo Plasma Training Manual [ET]
http://slidepdf.com/reader/full/daewoo-plasma-training-manual-et 1/18
DIGITAL TV DEVISIONDIGITAL TV DEVISIONDAEWOO ELECTRONICS CO., LTDAEWOO 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 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.
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< 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.
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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 >
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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 discharge
during the time interval called "1 TV frame".
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[ 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
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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)
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Display Types
Orga
-nicEL
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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
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Advantages of Plasma Display
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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
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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
Projector Projector
LCDLCDLCD
CRT DirectCRT Direct--ViewView
PDPPDPPDP
Rear ProjectionRear Projection
(Screen Size)
Projector Projector
5 15 25 35 45 55 65 Over 100
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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
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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
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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.
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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)