Invention Grant
- Patent Title: Driving method for cholesteric liquid crystal display
- Patent Title (中): 胆甾型液晶显示器的驱动方法
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Application No.: US11760156Application Date: 2007-06-08
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Publication No.: US07812803B2Publication Date: 2010-10-12
- Inventor: Yen-Chen Chen , Chien-Pin Chen , Chia-Cheng Lai
- Applicant: Yen-Chen Chen , Chien-Pin Chen , Chia-Cheng Lai
- Applicant Address: TW Tainan County
- Assignee: Himax Technologies, Inc.
- Current Assignee: Himax Technologies, Inc.
- Current Assignee Address: TW Tainan County
- Agency: Senniger Powers LLP
- Priority: TW92109064A 20030418
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
The present invention relates to a driving method for cholesteric liquid crystal display. A plurality of pixels of the display are controlled by a plurality of row drivers and a plurality of column drivers. According to the method of the invention, firstly, a DC input voltage or a non-symmetric AC input voltage is applied to the row drivers and the column drivers so that the voltage of the pixel is larger than a withstand voltage of the drivers. Then, an initial column signal and an initial row signal are respectively supplied by the corresponding column driver and row driver so as to initialize the corresponding pixel. The polarity of the initial column signal is different from that of the initial row signal. Because the initial row signal minus the initial column signal equals the signal of the pixel, the amplitude of the signal applied to the pixel can be increased. Therefore, according to the invention, the initial time of the pixel can be decreased, and the transferring speed of the pixel can be improved.
Public/Granted literature
- US20070229437A1 DRIVING METHOD FOR CHOLESTERIC LIQUID CRYSTAL DISPLAY Public/Granted day:2007-10-04
Information query
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