SAMSUNG SDI What is Plasma?
Which One is Better? More Economical than LCD 281 Trillion Color, Superb Uniformity Picture Noise Free, 100Hz More Competitive in Large Size (>40”) Wider Viewing Angle Gentle to Eye PSU Embedded Design Less Power Consumption (~ 2008) Clear.
PDP History
History Illinois University AC PDP 개발 (Bitzer & Slottow) 1968 Owens-Illinois Co.ltd, AC-PDP Product ‘DIGIVUE’
History Burroughs Co.ltd DC Self-scan PDP Gray Level 1971 Owens-Illinois Co.ltd Color AC PDP 1972 Hitachi/Mitsubishi Making Gray Level of AC PDP 1978 NHK, Full Color 16” DC PDP 1973~1978 Fujitsu, Matrix Array AC PDP (Surface Discharge)
History IBM, 960x768, 17” PC AC PDP Monitor 1985 Photonics, 2048x2048, 59” AC PDP
History Illinois University Energy Recovery (Weber) 1990 Fujitsu, ADS Driving 31” AC PDP 1993 NHK, 40” DC PDP
History Plasmaco, 1366x768, 60” AC PDP 1994 Plasmaco, Ramp reset High Contrast 21” AC PDP 1996 Fujitsu, 42” WVGA PDP Product 1997 Pioneer, 50” 1280x768, CLEAR Driving PDP
History SDI, 102” PDP 2000~ Matsushita, Plasmaco M&A → Competition Starts! Follow Red Circle !
How Does It Work? ImageSignalProcessImageSignalProcess Monitor Logic (Memory Con X-Y Con.) Logic (Memory Con X-Y Con.) Scan Drv. - Y PDP Panel X DATA Drive TV Set Spea-kerSpea-ker SMPSSMPS SetTopBoxSetTopBox Module
PDP Electrode Structure Y A Y X Y Y PDP Panel X: Common Electrode Y: Scan Electrode A: Data Electrode
How Does It Work?
Glass Substrate Dielectric Layer Address Electrode Barrier Rib Phosphor Layer Glass Substrate Transparent Electrode Bus-Electrode Dielectric Layer MgO Thin Film
How Does it Work? bus electrode dielectricITO electrode MgO layer barrier phosphors address electrode Front panel Back panel Put the Gas(He/Ne/Xe) in the vacuum space to be shut tight with the front and back glass The gas discharged if it makes Volt at the electrode UVU is made and generates the visible light the fluorescent substance through.
How Does It Work? ① Ramp 를 이용한 RESET 방전 Address(Data) Drivers Y-electrode (Scan Drivers) X-electrode ② SCAN (1 st line addressing) ③ SCAN (2 nd line addressing) ④ SCAN (3 rd line addressing) ⑤ SCAN (4 th line addressing) ⑥ SCAN (5 th line addressing) ⑦ SCAN (6 th line addressing) ⑧ SCAN (7 th line addressing) ⑨ SCAN (8 th line addressing) ⑩ 전면 SUSTAIN 방전 (Vs<Vf) ⑪ 벽전하 제거 ERASE 동작⑫ Ramp 를 이용한 RESET 방전 Switch = FET
How Does It Work? SF1SF2SF3SF4SF5SF6SF7SF8 Original Image T64T32T16T8T8T 4T2T1T 1TV field (time) scan line address sustain sub-field It is happening only for 16.67ms (=1 TV field) !
ResetAddressSustain Function Sustain Erase Wall Charge Set Issue Operation margin Contrast Short Time Function Select On Cell Issue High Speed Low Voltage Low Failure Function Discharge On Cell Issue High Efficiency Low Voltage ERC Performance How Does it Work? Sub Field 3 action made of Reset, Address, Sustain
How Does It Work?
System Architecture Panel : [Material + Process] + Discharge efficiency Circuit : [Excution/Logic Circuit + Logic Algorithm] + Discharge wave shape PDP = Panel + Circuit + Electric discharge Material Tech. - Elctrode, Phosphors Dielctric. Process Tech. - Ventilation, Aging Excution/Logic - circuit design, Optimization. Logic Algorithm - Wave shape/Screen Panel Circuit Discharge wave shape - Design Tech. Discharge efficiency - Cell structure, Gas Discharge
System Architecture Y_mainX_main SMPS Logic X Y Logic buffer Logic [Basic Structure of PDP] Drive – Take the logic signal and transmit at Drive IC Logic – Take the image signal and control bus electrode and address electrode to fuction Panel. SMPS – Provide the need electricity at an each board (AC/DC, DC/DC)
Glass ITO electrode Bus electrode Dielectric layer 1 Dielectric layer 2 Glass Address Barrier Rib Phosphors Frit Dielectric layer Assembly Seal & Exhaust Aging Upper GlassLower Glass Inspection MgO Black Stripe Drive circuit Module Completion PDP Panel Making Process
PDP, Well-being Display
The truth of the bright It is really good if it is just bright ? PDP: To be bright changes according to the screen area → Natural comfortable at the eye intensity. LCD: Always high bright without the relation of the screen area → The eye is tired if it sees continuously. Bright characteristic ( Source: 大阪교육대학 인간행동학과 高橋 誠 교수 연구, 2005) PDP : Characteristic is similar with CRT LCD : Don't do the bright adjustment according to the screen area Need natural intensity expression to reduce the fatigue of the eye. Shining impression needs to maintain at least Need natural intensity expression to reduce the fatigue of the eye. Shining impression needs to maintain at least %50%75%100% white screen area Bright LCD Avg. Bright PDP Avg. Bright (cd/m 2 ) LCD Peak Bright CRT Avg. Bright CRT Bright PDP Peak Bright
Operate originally to the half less of the resolution in the LCD TV dynamic screen High resolution in the dynamic screen Slowly ( 8sec/ screen width) Fast a little ( 4sec/S.W.) PDP (1280×768) PDP (1280×768) HD resolution Almost HD resolution SD resolution Less than SD resolution Move the picture according to speed and observe to a high capacity camera on the screen Movement in left to right (Source: FPD International, 2005) LCD (1920×1080) LCD (1920×1080) - LCD TV : Operation to less than SD resolution in the Full HD dynamic screen. - PDP TV : Original resolution hold in the dynamic screen
100% 180% Sleepy Instability Displasement Tired Faint LCD PDP PDP Vs. LCD for Humans eyes 1. The fatigue of the eye 100% 120% LCD PDP Before watch After watch ○ Change of an impression ○ The number change to twinkle the eye Result of the mental state assessment 代 20 代 100% 130% After watch LCD -> Sleepy/faint impression is relatively big After watch PDP -> Difference does not exist The fatigue of the eye after we watch LCD TV is more big→ The fatigue of the eye ; LCD > PDP → The fatigue of the eye increases especially in the 50 years olds ~ 60 years olds During watch
PDP Vs. LCD for Humans eyes 2. The eye sight degradation LCD : The eye sight degradation while we watch TV is happened. - The eye sight recovery after rest. → The burden of the eye about LCD is big PDP : The eye sight degradation does not exist almost The eye sight change. 0 Before watch 1st watch2nd watch3rd watch 4th watch minute After rest LCD PDP Watch TV for 100 minute Rest ○ Eye sight change for the 100 minute Eye sight degradation
Next generation technique district
Next generation PDP tecnique Screen Quality & FHD 13bits image processing Enhenced Bright room contrast 40” FHD False Contour free Low consumption electricity Low consumption : 100W Next genetation discharge structure Cost Low volt drive method Low cost Filter Simple circuit structure Low cost panel material
Natural Color & Gray Scale image processing technology 14Bit image processing technology + Error Diffusion Enhenced gray scale output and Noise reduction 14 Bit image processing = CRT Like Error Diffusion Bright level input level Bright level Input level
Panel + Filter Enhanced Contrast Enhenced Panel Lower Reflection Technology Enhenced Filter [Glass Filter][Film Filter]
FHD Electric discharge space extention - 6% space extention (50FHD) - 42”FHD Possible DATA elctrode reduction : 35% SDI New structure = Electric discharge space extension + DATA elctrode reduction New structure which the electric discharge is possible in small space - SDI 50FHD (New Cell structure) Y1Y1 X Y2 X A1A2A3 Conventional New Y2 Y1 X Y3 X A2A1 X
Key point of Full HD is Cost Key point of Full HD is Cost High Speed Data Processing High Speed Data Processing - HIgh speed Scan time : Conventional 1.96us → New 1.1us - High speed Data processing : Conventional 67.4MHz → New 148.5MHz ※ FHD S/Scan : New execution method development need Need FHD panel technique (0.5 p) Need FHD panel technique (0.5 p) - P resent structure impossible → Need new structure development Conventional 1.96us 1.1us Full HD
Low consumption electricity Innovative structure development New discharge structure [ E qual to the consumption electricity of the 100W glow lamp] Surface discharge → Nonsurface discharge → Space discharge Negative Glow discharge → Positive Column discharge Create UV without discharge Efficiency 3 times enhance ? = Convention al = New
COST 1 st : Small Size PBA 、 Multi Channel Drive IC 2 nd : Reduce Driving volt 50% 、 Simple component 3 rd : LSI and Reduce PBA 、 Apply COG Tech. Simple circuit + Reduce Driving Volt Present Next Step ?
DTV = PDP World Only 1, No.1 Display CRT Like Cost CRT Like Cost High quality High quality screen screen FHD FHD Big Screen Big Screen · Natural color · Reality · All FHD · Size 37”~102” HDTV Replacement CRT, PJT Industry
Beyond Your Expectations