Invention Grant
US08487856B2 Addressing method for a bistable nematic liquid crystal matrix screen with regulated average quadratic voltage
失效
具有调节平均二次电压的双稳态向列型液晶矩阵屏的寻址方法
- Patent Title: Addressing method for a bistable nematic liquid crystal matrix screen with regulated average quadratic voltage
- Patent Title (中): 具有调节平均二次电压的双稳态向列型液晶矩阵屏的寻址方法
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Application No.: US12296024Application Date: 2007-03-20
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Publication No.: US08487856B2Publication Date: 2013-07-16
- Inventor: Stéphane Joly , Christophe Body , Jean-Denis Laffitte
- Applicant: Stéphane Joly , Christophe Body , Jean-Denis Laffitte
- Applicant Address: FR Magny-les-Hameaux
- Assignee: NEMOPTIC
- Current Assignee: NEMOPTIC
- Current Assignee Address: FR Magny-les-Hameaux
- Agency: Greer, Burns & Crain, Ltd.
- Priority: FR0651275 20060407
- International Application: PCT/FR2007/050965 WO 20070320
- International Announcement: WO2007/116162 WO 20071018
- Main IPC: G09G3/36
- IPC: G09G3/36 ; G02F1/133 ; C09K19/02
Abstract:
A method for addressing a bistable nematic matrix LCD having two stable textures without any applied electric field. Pixel addressing is of the passive multiplex type. The method includes selecting the value of the electrical voltage applied between the substrates so that an average value of the voltage, preferably the average quadratic value, since the initial command for image display up to the time immediately preceding switching, has a predetermined value independent of the information to be displayed, which is the same for all the pixels of the image.
Public/Granted literature
- US20090273549A1 IMPROVEMENTS TO BISTABLE NEMATIC LIQUID CRYSTAL DISPLAYS Public/Granted day:2009-11-05
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