LED背光模组

Innovative Display Solution Provider 中強光電 For QDI 教育訓練 LED背光模組 蕭 德 瑋 研發中心 協理 背光模組事業群 中 強 光 電 Nov.02 2005 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電ContentsContents LED Application for TFT-LCD Why Use LED for LCD Backlight? FPD Show Yokohama What’s Timing for Market? 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 Data source: DISPLAY SEARCH 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 The Applicable Field of LEDThe Applicable Field of LEDThe Applicable Field of LED Display size (inch) 10 1 20 30 40 5010 1000 Data source : Nikkei Microdevice Aug 03 LCD TV After 2004年 After 2005年 After 1998年 LCD Monitor Auto mobile Mobile phone, DSC Digital Video Camera PDA N u m b e r o f L E D ( p ) 100 The applicable field of LED is spreading. 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電大尺寸TFT-LCD的發展趨勢 Panel Size NB Monitor TV 1. High Brightness 2. Weight Reducing 3. High Resolution 4. Power Consumption Saving NB 1. High Resolution 2. High Color Saturation 3. High Contrast TV MonitorApplication Resolution Application NB Monitor TV 1. High Color Purity 2. Wide View Angle 3. Faster Response Time 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電不斷擴增新世代設備至使產能倍數成長 產能過剩怎麼辦? 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電全球Display市場出貨規模 Sales Growth K Units Display產品 2001 2002 2003 2004(e) 2005(f) 05/04 Growth Rate CDT MTR 90,591 15,381 1,300 Projector 1,490 1,790 2,702 3,820 5,651 48% 45,510 1,385,483 84,325 69,983 65,920 48,616 -26% LCD MTR 31,953 51,020 67,475 90,922 35% LCD TV 2,100 4,300 8,300 15,500 87% Large Size Panel 68,655 99,249 131,473 173,090 32% Small Size Panel 1,505,960 1,682,842 1,939,053 1,998,407 3% 資料來源：資策會MIC，2005年1月 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電我國Display產業出貨佔有率 Display產品 2004(e) 2005(f) 2004 Production Share (e) 2005 Production Share (f) CDT MTR 35,330 45,693 1,771 Projector 856 1,356 22% 24% 58,546 513,763 26,005 54% 53% LCD MTR 63,924 68% 70% LCD TV 3,442 21% 22% Large Size Panel 79,004 45% 46% Small Size Panel 647,998 27% 32% K Units LCD TV：受液晶監視器價格下滑，15”~19”液晶電視受其影響，產品需求下降；20 吋液 晶電視因價格快速下滑且適用於家中第二台電視，市場出貨量大增；全球5.5代以上液晶 面板產能陸續開出，將有助於提升32”與37”產品需求，而30”產品出貨量將逐漸下滑. 大尺寸面板 台灣今年出貨冠全球資料來源：資策會MIC，2005年1月 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電WW TV Market Overview 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 估計2005年台 廠大尺寸TFT LCD總出貨量 將達9,418萬 片，可望超越 南韓，成為全 球最大TFT LCD供應地。 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 Why Use LED for LCD Backlight?Why Use LED for LCD Backlight? Beautiful Color Æ NTSC over 100% Lower Power Æ Small size BKL Slim Æ Note Book … 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電LED背光源大幅提升LCD TV色彩 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 Vivid ColorVivid ColorVivid Color ４００ ５００ ６００ ７００ ０ ２０ ４０ ６０ ８０ １００ 分光特性 ??? ??? 波長 (nm) Color filter 帯域特性Light of LED The band pass characteristics of a color filter and the luminescence wavelength of LED are in agreement. LED BKL CCFL BKL Data from Lumileds 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 LED V.S. CCFL CCFL Backlight LED Backlight 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電SONY QUALIA 005 SONY QUALIA 005 KDX- 40Q005 SONY QUALIA 005 KDX- 46Q005 SAMSUNG LNR460D SIZE 40" 46" 46" RESOLUTION 1366 x 768 1920 x 1080 1920 x 1080 RESPONS TIME 10 ms 10 ms 8 ms NTSC 105% 105% 105% POWER 470W 550W --- COST 840,000 Yen 1,102,500 Yen 12,999 USD MARKET DAY Nov. 2004 Nov. 2004 May. 2005 色域更廣，顏色艷麗 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電紅色和綠色表現明顯提高 現場效果比照片好很多 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電Core 37” LED BKU in DEC. 2004 15 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 Structure of TV BKL (Structure of TV BKL (直下式直下式)) LED Strip Hole Reflecto r Air in Air out Data Source: Lumileds 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電熱的分布與傳導路徑 Data Source: Lumileds 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電Structure of LCD Back light systemStructure of LCD Back light system ・The light of LED of red, green, and blue is mixed by Color mixing LGP, and white light is made. ・White light is led to LGP and it is made to emanate to the LCD panel side. LGP Perspective diagram Color mixing LGP LCD Panel White Reflector Data from Lumileds 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電Color Mixing Process Color marks Data Source: Lumileds 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 Color Mix LGPColor Mix LGP 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電Lumileds – Side emitter REFLECTER SHEET Data from Lumileds 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電Lumileds – Side emitter 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電Structure 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電Technology for High Power LEDTechnology for High Power LED W hite Light Heat dissipation design M olding technology Optical design - H igh Pow er - Long life - DIE Bonding - W ire Bonding 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電Direct Type LED Strip PerformanceDirect Type LED Strip Performance Data from Lumileds 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電Blinking BKUBlinking BKU LED can switch very fast. It can provide blinking back light. Signal ON CCFL BKL ON ON OFF Picture Picture Blinking BKL Blur Blur BlurBlur Motion of liquid crystal OFF OFF 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電Fast switchingFast switching Blurred picture Conventional BKL Blinking BKL clear picture Data from Lumileds 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電面臨了三個主要的問題 1）降低顯示中色彩的不均勻 亮度偏差是CCFL的5倍左右 2）減少色彩漂移 色彩偏差則是CCFL的5到7倍 Æ 透過嚴格的LED選擇程序 Æ 可能需使用色彩感應器和溫度感應器。 3）降低電源消耗量 Æ只能透過改善LED本身的性能來解決 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 LED BKU Control Diagram Color Sensor LfB Controller Temp. F/F Optical F/B Dynamic PWM Control LCD / Display Controller LfB Light SourceTemp. Sensor Mixing Light Guide & LCD PanelMixing Light Guide & LCD Panel Backlight Control SYNC Brightness Color LCD Control Power Supply PWM Current AM Control static/dynamic brightness, color coordinate to resolve deviation of LED itself 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電LED BKU PR Data Source: Coretronic, Agilent, June, ‘05 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電TDMDA 32” LED TV 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電White & RGB LED BKL 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 White LED BKL 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電Slim LED BKL 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 RGB LED BKL 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電薄型LED (FLATLED) 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 RGB LED BKL Source: Tama of FPD 2005 show 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電Light Leakage Problem The Black of LCD is not dark enough Because of the light leakage AUO has developed a High Dynamic Contrast LCD system Contrast from 1,000:1 to 10,000:1 0.05 ~ 550 cd/m2 Power Consumption is decreased 50% 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電46” RGB LED BKL Thickness 70mm Lower Power 220W@500cd/m2 No Fan & Heat Sink NTSC 107% Contrast 800:1 Source: Samsung of FPD 2005 show 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電32” Color-Filter-Less LCD No Color Filter Lowest Power 80W@500cd/m2 No Fan & Heat Sink NTSC 110% View Angle > 1600 Source: Samsung of FPD 2005 show 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 0 20 40 60 80 100 Life Time Zebra Effect Larger Size Non-blurredColor Gamut Power Consum. BKU Cost CCFL, '06 PLANON 2, '06 LED, '06 LED enriches your product portfolio: better color, better picture PLANON enriches your product portfolio: longer life, better picture BKU Light Source Evaluation – ‘06 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電What’s Solution Need to Do ? Middle size back light with white LED Luminance,Uniformity, Power consumption LED back light ≧ CCFL back light Ⅰ. Thermal Solution Ⅲ. Cost Ⅱ. LED Driver - LED unit Price - ? LEDs x ? Circuit - Reduce LED number - Big Current ? for one back light? Source: minebea 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 Indicator LED Hi Power LED F l u x / P a c k a g e ( l u m e n s ) Year LED Flux increase TrendLED Flux iLED Flux inncrease crease TTrendrend 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電Samsung Cost Down 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電What’s timing to Market? The Time is Happen at • LED Efficiency Up One times • LED Cost down to Half price 中国液晶之家 - www.fpdclub.net Innovative Display Solution Provider 中強光電 END Thank You ! 中国液晶之家 - www.fpdclub.net LED背光模組 大尺寸TFT-LCD的發展趨勢 全球Display市場出貨規模 我國Display產業出貨佔有率 LED V.S. CCFL SONY QUALIA 005 Core 37” LED BKU in DEC. 2004 Lumileds – Side emitter TDMDA 32” LED TV White & RGB LED BKL White LED BKL Slim LED BKL RGB LED BKL 薄型LED (FLATLED) RGB LED BKL Light Leakage Problem 46” RGB LED BKL 32” Color-Filter-Less LCD What’s timing to Market?