Invention Grant
- Patent Title: Liquid crystal display device
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Application No.: US14436147Application Date: 2013-12-13
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Publication No.: US09697777B2Publication Date: 2017-07-04
- Inventor: Hidekazu Miyata
- 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: JP2012-280180 20121221
- International Application: PCT/JP2013/083433 WO 20131213
- International Announcement: WO2014/097976 WO 20140626
- Main IPC: G09G3/34
- IPC: G09G3/34 ; G09G3/36 ; F21V8/00 ; G02B27/01 ; G02F1/133 ; G02F1/1335

Abstract:
In a liquid crystal display device capable of performing image display while keeping a background in a transparent state, field-sequential driving is performed without causing color mixing.A backlight (700) is configured by upper-side LEDs (71U) and lower-side LEDs (71D) that are provided respectively in an upper side and a lower side of a liquid crystal panel (800), and an upper-side light guide plate (72U) and a lower-side light guide plate (72D) for guiding emission light respectively from the upper-side LEDs (71U) and the lower-side LEDs (71D) to the liquid crystal panel (800). When a screen of a color corresponding to each field which constitutes one frame period is displayed, LEDs included in the upper-side LEDs (71U) are turned into a light emission state and then LEDs included in the lower-side LEDs (71D) are turned into the light emission state, and the LEDs included in the upper-side LEDs (71U) are turned into a light-off state and then the LEDs included in the lower-side LEDs (71D) are turned into the light-off state.
Public/Granted literature
- US20150302805A1 LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2015-10-22
Information query
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