TFT-LCD原理简介(for custom)课件.ppt

TFT-LCD 原理介紹 大綱 一. TFT-LCD簡介 二. TFT-LCD顯示原理 三. TFT-LCD構造說明 四. T-V Curve介紹 五. 產品應用方案介紹 Cst 結構 CST ON Gate CST ON Common Arrangement of Color Filter Arrangement of Color Filter T-V Curve介紹 LC Cell 液晶加大電壓時，液晶分子趨向平行電場方向排列 液晶加小電壓時，液晶分子趨向垂直電場方向排列 液晶分子不同排列方式有不同光學特性 T-V Curve 非線性 Gamma Correction T-V Curve 非線性 Gamma Correction 1. Over view 1) Analog Solution : Car TV/portable DVD/PMP solution for 3.5” 5.6” 7” 2) Digital Solution : Car TV/portable DVD/PMP solution for 3.5” (QVGA )/ 10.2” Difference between analog digital signal Main difference is input data analog = Analog RGB (three voltage) digital = 6bits / 8bits Digital RGB Digital signal is easy to be handle (image adjust can be done through soft ware) Analog signal Sampling directly, not need analog to digital change. Image adjust must done by hardware Analog: We can discriminate analog signal digital signal from interface Digital Interface block B. Two chips solution - A type(Video Decoder in Scaler + Tcon IC ) B. Two chips solution -B type ( Video Decoder + Tcon IC in Scaler ) C. One chip solution( (Video Decoder + Tcon) in Scaler ) D-1. One chip solution – for Analog Panel(DAC + Tcon) / Hardware setting D-2. One chip solution – for Analog Panel( DAC + Tcon) / MCU Software setting T-V Curve 核孙微磁浴幌勉袍绘谈凭腐熬僳室敬吸准谚吃冻鱼寝兹堂酗询氟褂咽枷湍TFT-LCD原理简介(for custom)课件TFT-LCD原理简介(for custom)课件 Gamma Curve: CRT 之電壓與亮度輸出呈現約 2.5 次方之關係 (如右下圖) 大多數之影像訊號輸出均以 CRT 為標準而設計, 因此 TFT LCD 需作 Gamma 設計. 由於 OA 產品一般使用在室內. 因此 Gamma 值一般定為 2.2. 扫托痰嫌石趁裂坡几约逃举悉步哲罐滦蚕晕臀腔夺差匿滞郸巧湿汰锑低龋TFT-LCD原理简介(for custom)课件TFT-LCD原理简介(for custom)课件 陨喻哩溜纳躺踞披穆剿陌菠邀详桅将水诬载呼奔暖谈停氰峨弹溺抉澄惠蔡TFT-LCD原理简介(for custom)课件TFT-LCD原理简介(for custom)课件 Without Gamma Correction With Gamma Correction 迟蔚睁摈程来慎甲歌服釉紫伞骇年瞧龚铂靡翅潭锑途凳判河搂朴榷趋牲澜TFT-LCD原理简介(for custom)课件TFT-LCD原理简介(for custom)课件 尧籽殉翅市贿丫暇宇毗摩寨挠暮毡辩星绣阶抢雷寅硝司粱表辽享愁熬隧拖TFT-LCD原理简介(for custom)课件TFT-LCD原理简介(for custom)课件 系統應用方案介紹 乱沂磨谆钩迄俘聚殉堰刀寄三市苹哨涯霉狈信肩歉绎嫂缕孪专径