Invention Grant
- Patent Title: Liquid crystal display device and liquid crystal display device driving method
- Patent Title (中): 液晶显示装置及液晶显示装置的驱动方法
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Application No.: US14375163Application Date: 2013-01-25
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Publication No.: US09355606B2Publication Date: 2016-05-31
- Inventor: Kohji Saitoh , Akihisa Iwamoto , Masami Ozaki , Masaki Uehata , Jun Nakata , Tomohiko Nishimura
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Keating & Bennett, LLP
- Priority: JP2012-019153 20120131
- International Application: PCT/JP2013/051620 WO 20130125
- International Announcement: WO2013/115100 WO 20130808
- Main IPC: G06F3/038
- IPC: G06F3/038 ; G09G5/00 ; G09G3/36 ; G09G3/04 ; G02F1/1343 ; G02F1/1362 ; G02F1/1368 ; G02F1/1333

Abstract:
A liquid crystal display device includes: a data signal line; a scan signal line; a pixel electrode; a transistor connected to (i) the data signal line, (ii) the scan signal line, and (iii) the pixel electrode; and a common electrode, the liquid crystal display device being configured to turn on the transistor during a power-off sequence by causing a change in an electric potential of the scan signal line, the electric potential of the scan signal line reaching a first electric potential at a first timing after the change is initiated, and the common electrode being in an electrically floating state at a second timing which comes after the first timing. This, in a case where the transistor is turned on in preparation for an operation to turn off a power source of the liquid crystal display device, makes it unlikely for a DC voltage to be applied across a pixel even if potential variation (kickback) occurs at the pixel electrode in reaction to a change in status of the transistor from an on state to an off state.
Public/Granted literature
- US20150009195A1 LIQUID CRYSTAL DISPLAY DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE DRIVING METHOD Public/Granted day:2015-01-08
Information query
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