公开(公告)号：US09977274B2

公开(公告)日：2018-05-22

申请号：US15156243

申请日：2016-05-16

Applicant: LG Display Co., Ltd.

Inventor： Heesun Shin ,  Seok Woo Lee ,  Jae Sung Yu ,  Ju Han Kim ,  Sun Jung Lee ,  In Hyuk Song

IPC: G02F1/1333 ,  G02F1/1335 ,  G06F3/041 ,  G06F3/044 ,  G02F1/1362 ,  G02F1/1368 ,  G06F3/047 ,  G02F1/1343

CPC classification number: G02F1/13338 ,  G02F1/133345 ,  G02F1/133514 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/133302 ,  G02F2001/134372 ,  G02F2001/136295 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/044 ,  G06F3/047 ,  G06F2203/04103

Abstract: Disclosed is an LCD device which realizes decreased thickness, simplified process, and decreased cost by using a common electrode for formation of electric field to drive liquid crystal as a sensing electrode, and removing a touch screen from an upper surface of the liquid crystal panel, the LCD device comprising gate and data lines crossing each other to define plural pixels on a lower substrate; a pixel electrode in each of the plural pixels; plural common electrode blocks patterned at the different layer from the pixel electrode, wherein the common electrode blocks, together with the pixel electrode, forms an electric field, and senses a user's touch; and plural sensing lines electrically connected with the common electrode blocks, wherein, if the sensing line is electrically connected with one of the common electrode blocks, the sensing line is insulated from the remaining common electrode blocks.