Invention Grant
US08421742B2 Apparatus and method to improve quality of moving image displayed on liquid crystal display device
有权
提高在液晶显示装置上显示的运动图像质量的装置和方法
- Patent Title: Apparatus and method to improve quality of moving image displayed on liquid crystal display device
- Patent Title (中): 提高在液晶显示装置上显示的运动图像质量的装置和方法
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Application No.: US12782480Application Date: 2010-05-18
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Publication No.: US08421742B2Publication Date: 2013-04-16
- Inventor: Hidefumi Yoshida , Seiji Tanuma , Takatoshi Mayama , Yuichi Inoue , Toshiaki Suzuki , Kazutaka Hanaoka , Takeshi Gotoh , Tetsuya Kobayashi , Makoto Ohashi , Hisashi Yamaguchi , Katsunori Tanaka , Koichi Katagawa
- Applicant: Hidefumi Yoshida , Seiji Tanuma , Takatoshi Mayama , Yuichi Inoue , Toshiaki Suzuki , Kazutaka Hanaoka , Takeshi Gotoh , Tetsuya Kobayashi , Makoto Ohashi , Hisashi Yamaguchi , Katsunori Tanaka , Koichi Katagawa
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Greer, Burns & Crain, Ltd.
- Priority: JP11-291156 19991013; JP2000-84770 20000324
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
A liquid crystal display device includes a panel having pixel electrodes arranged at intersections of a plurality of signal lines via switching elements for transmitting display data and a plurality of scanning lines for transmitting control signals, and a control circuit for controlling the panel. The liquid crystal panel is divided into first pixel regions and second pixel regions adjacent to the first pixel regions. The control circuit carries out impulse driving in which the control signals transmitted to each of the scanning lines are activated two times in one frame period for displaying an image. The control circuit writes the display data in either one of the pixel regions and writes reset data in the other pixel regions when the control signals are activated once of the two times. By writing the reset data in the pixel regions, the display data written in an immediately preceding frame are reset. In consecutive frames, the display data written in the pixel regions are always reset in one frame period. Therefore, blurring in a moving image can be alleviated. Since writing the display data and the reset data is carried out separately in the first pixel regions and in the second pixel regions, flicker is prevented from occurring in a display screen.
Public/Granted literature
- US20100225681A1 APPARATUS AND METHOD TO IMPROVE QUALITY OF MOVING IMAGE DISPLAYED ON LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2010-09-09
Information query
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