Invention Grant
- Patent Title: Liquid crystal display device with grey-scale voltage correction
- Patent Title (中): 具有灰度电压校正的液晶显示装置
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Application No.: US13371003Application Date: 2012-02-10
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Publication No.: US09251749B2Publication Date: 2016-02-02
- Inventor: Junichi Maruyama , Ryutaro Oke , Yoshihisa Ooishi
- Applicant: Junichi Maruyama , Ryutaro Oke , Yoshihisa Ooishi
- Applicant Address: JP Hyogo
- Assignee: Panasonic Liquid Crystal Display Co., Ltd.
- Current Assignee: Panasonic Liquid Crystal Display Co., Ltd.
- Current Assignee Address: JP Hyogo
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2011-052648 20110310
- Main IPC: G09G3/34
- IPC: G09G3/34 ; G09G3/36
Abstract:
In the case where the gray-scale value of the pixel X is the minimum gray-scale value, the data line driving circuit (4) outputs a video signal having a voltage obtained by correcting the positive polarity minimum gray-scale voltage corresponding to the minimum gray-scale value only when outputting a positive polarity video signal. In the above, the data line driving circuit (4) outputs the video signal having the voltage obtained by correcting the positive polarity minimum gray-scale voltage, using a voltage correction amount larger than that which is used in outputting the video signal having the voltage obtained by correcting the positive polarity gray-scale voltage corresponding to the intermediate gray-scale value.
Public/Granted literature
- US20120229523A1 LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2012-09-13
Information query
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