发明名称 LIQUID CRYSTAL DISPLAY DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide a liquid crystal display device allowing a desired retention volume to be secured in a pixel without reducing an aperture ratio, in response to a change in frame frequency. <P>SOLUTION: In a liquid crystal display device having a pixel transistor using an oxide semiconductor material and two capacitive elements in each pixel, one capacitive element is made of a material having translucency to improve an aperture ratio. Further, a voltage value of a capacitive line is adjusted to change the size of the retention volume in the pixel by utilizing the characteristic of the capacitive element having translucency and in response to the frame frequency that changes depending on a display state of the image. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2012083738(A) 申请公布日期 2012.04.26
申请号 JP20110200767 申请日期 2011.09.14
申请人 SEMICONDUCTOR ENERGY LAB CO LTD 发明人 MIYAKE HIROYUKI
分类号 G02F1/1368;G02F1/133;H01L29/786 主分类号 G02F1/1368
代理机构 代理人
主权项
地址