公开(公告)号：US20170059910A1

公开(公告)日：2017-03-02

申请号：US15350690

申请日：2016-11-14

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shuji FUKAI ,  Ryo HATSUMI ,  Daisuke KUBOTA

IPC: G02F1/133 ,  G02F1/1343 ,  G09G3/36 ,  G02F1/1333

CPC classification number: G02F1/13306 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/1337 ,  G02F1/13394 ,  G02F1/134363 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/133302 ,  G02F2001/134372 ,  G02F2001/134381 ,  G02F2001/13629 ,  G02F2001/136295 ,  G02F2201/121 ,  G02F2201/123 ,  G09G3/3614 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2310/08 ,  G09G2320/0204 ,  G09G2320/0247

Abstract: A flicker of an FFS liquid crystal display device that is driven at a low refresh rate is reduced. In an FFS liquid crystal display, a pixel electrode and a first common electrode included in a liquid crystal element are formed on an element substrate side, and a second common electrode is formed on another substrate (counter substrate) side. By making the first and second common electrodes have the same potential, generation of a residual DC voltage can be suppressed in a pixel. Thus, even when a refresh rate is lowered, change in transmittance of a pixel can be suppressed in a data retention period, so that a flicker can be reduced.

Abstract translation: 以低刷新率驱动的FFS液晶显示装置的闪烁减少。 在FFS液晶显示装置中，在元件基板侧形成像素电极和包含在液晶元件中的第一公共电极，在另一基板（对置基板）侧形成第二公共电极。 通过使第一和第二公共电极具有相同的电位，可以在像素中抑制残留DC电压的产生。 因此，即使当刷新率降低时，也可以在数据保持期间抑制像素的透射率的变化，从而能够降低闪烁。