发明名称 SEMICONDUCTOR DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a display device in which a problem of light leakage from a liquid crystal element in black display is reduced or overcome and the contrast is improved, and provide a pixel circuit having a function to control the lighting state of a backlight for each pixel.SOLUTION: A light-emitting element is turned off in display of a black gray scale. A light-emitting element is provided in each pixel, and a pixel circuit has a function to individually control turning-on/off of the light-emitting element depending on a gray scale for display. Since a backlight is provided corresponding to each pixel, a light-emitting element to be a backlight is turned off in display of a black gray scale, to prevent reduction in contrast due to light leakage from a liquid crystal element.
申请公布号 JP2015018264(A) 申请公布日期 2015.01.29
申请号 JP20140171287 申请日期 2014.08.26
申请人 SEMICONDUCTOR ENERGY LAB CO LTD 发明人 KIMURA HAJIME;YOSHIDA YASUNORI;SHISHIDO HIDEAKI;UMEZAKI ATSUSHI;YANAGISAWA MAKOTO;YAMAZAKI SHUNPEI
分类号 G02F1/13357;G02F1/1368;G09G3/20;G09G3/34;G09G3/36 主分类号 G02F1/13357
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