Invention Grant
- Patent Title: Liquid crystal display device, light source device, and light source control method
- Patent Title (中): 液晶显示装置，光源装置和光源控制方法
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Application No.: US11754734Application Date: 2007-05-29
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Publication No.: US07864156B2Publication Date: 2011-01-04
- Inventor: Mitsutaka Okita , Kazuhiro Nishiyama , Shigesumi Araki
- Applicant: Mitsutaka Okita , Kazuhiro Nishiyama , Shigesumi Araki
- Applicant Address: JP Tokyo
- Assignee: Toshiba Matsushita Display Technology Co., Ltd.
- Current Assignee: Toshiba Matsushita Display Technology Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-148181 20060529; JP2007-139581 20070525
- Main IPC: G09G3/36
- IPC: G09G3/36
Abstract:
A liquid crystal display device includes a liquid crystal display panel which periodically performs graduation display and non-graduation display, a backlight which illuminates the liquid crystal display panel, and a light source control circuit which sets an illumination period that allows illumination of the backlight for the gradation display and drives the backlight unit during the illumination period. The light source control circuit is configured to drive the backlight intermittently during the illumination period in limiting the luminance of the backlight.
Public/Granted literature
- US20070273678A1 LIQUID CRYSTAL DISPLAY DEVICE, LIGHT SOURCE DEVICE, AND LIGHT SOURCE CONTROL METHOD Public/Granted day:2007-11-29
Information query
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