Invention Grant
- Patent Title: Ferroelectric liquid crystal panel driving method and liquid crystal display device
- Patent Title (中): 铁电液晶面板驱动方法和液晶显示装置
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Application No.: US12741598Application Date: 2009-03-25
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Publication No.: US08933869B2Publication Date: 2015-01-13
- Inventor: Akira Suguro
- Applicant: Akira Suguro
- Applicant Address: JP Tokyo
- Assignee: Citizen Holdings Co., Ltd.
- Current Assignee: Citizen Holdings Co., Ltd.
- Current Assignee Address: JP Tokyo
- Priority: JP2008-084631 20080327
- International Application: PCT/JP2009/056762 WO 20090325
- International Announcement: WO2009/119882 WO 20091001
- Main IPC: G09G3/36
- IPC: G09G3/36 ; G02F1/141

Abstract:
The present invention relates to a method for driving a ferroelectric liquid crystal panel. A liquid crystal display device according to the present invention includes a ferroelectric liquid crystal panel having a ferroelectric liquid crystal provided between a pair of substrates, a plurality of scanning electrodes and a plurality of drive electrodes, and a plurality of pixels constituted by intersections between the plurality of scanning electrodes and the plurality of signal electrodes, and a controller for applying driving pulses to the plurality of scanning electrodes and the plurality of signal electrodes. The controller applies to the plurality of pixels first reset pulses, first selection pulses for switching the plurality of pixels, second reset pulses having a voltage or pulse width different from that of the first reset pulses, and second selection pulses having a voltage or pulse width different from that of the first selection pulses and for switching the plurality of pixels. According to the present invention, a clear image can be obtained regardless of threshold unevenness.
Public/Granted literature
- US20100225641A1 FERROELECTRIC LIQUID CRYSTAL PANEL DRIVING METHOD AND LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2010-09-09
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