Liquid Crystal Display Overdrive Method and Design

• Main Authors: Jian-Cheng Lin, 林建成
• Other Authors: Pi-Tung Chen
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/09898861371106028156

碩士 === 清雲科技大學 === 電機工程研究所 === 93 === When displaying moving pictures on a TFT-LCD, a blurring, trailing, low dynamic contrast, or color shifts phenomenon may appear on moving pictures. This is caused by slow response time of liquid crystal. An overdrive control method is proposed to improve this deterioration of display quality in moving pictures. By using this method, the liquid crystal response time can be reduced to less then one refresh frame cycle time, especially when the change is between two gray levels. This overdrive controller will be implemented by a FPGA circuit and located in front of timing controller on LCD panel. The relationship between liquid crystal response time and overdrive control method will also be studied.