Invention Grant
- Patent Title: Liquid crystal display device and driving method therefor
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Application No.: US14779682Application Date: 2014-02-24
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Publication No.: US09865202B2Publication Date: 2018-01-09
- Inventor: Fumiyuki Kobayashi , Asahi Yamato , Ken Inada
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Sakai
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Sakai
- Agency: Keating & Bennett, LLP
- Priority: JP2013-076855 20130402
- International Application: PCT/JP2014/054322 WO 20140224
- International Announcement: WO2014/162794 WO 20141009
- Main IPC: G09G3/36
- IPC: G09G3/36 ; G02F1/1337 ; G02F1/1343

Abstract:
The invention provides a liquid crystal display device capable of preventing a reduction in display quality by suppressing the occurrence of flicker during alternating-voltage drive, as well as a method for driving the same.Overshoot drive is performed during a first frame period, which is shortened to such an extent that a “positive effective area” and a “negative effective area” are approximately equal in size. The duration of the first frame period is set to be greater than or equal to a quarter of one frame period at a refresh rate of 60 Hz but less than one frame period. This renders it possible to make adjustments such that luminance is inhibited from abruptly dropping immediately after a polarity change, and also luminance is prevented from becoming excessively high due to overshoot drive, and therefore, the occurrence of flicker due to flexoelectric polarization during alternating-voltage drive can be suppressed.
Public/Granted literature
- US20160063933A1 LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD THEREFOR Public/Granted day:2016-03-03
Information query
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