公开(公告)号：US20170168640A1

公开(公告)日：2017-06-15

申请号：US15373201

申请日：2016-12-08

Applicant: Japan Display Inc.

Inventor： Teppei YAMADA ,  Masaki MURASE ,  Yoshiyuki IKEHATA ,  Daisuke ITO ,  Naoki TAKADA

IPC: G06F3/041 ,  G02F1/133 ,  G02F1/1362 ,  G06F3/044 ,  G02F1/1333

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04107 ,  G09G3/20

Abstract: A liquid crystal display device includes a panel unit and a driving unit driving the panel unit. The driving unit includes as operation modes a first mode in which a detection operation of a first external object is performed in units of a divided region obtained by dividing an entire surface of a touch region of the panel unit and a second mode in which a detection operation of a second external object is performed on the entire surface of the touch region of the panel unit. The first mode is a mode detecting, in units of the divided region of the panel unit, a contact position of the first external object with each divided region, and the second mode is a mode detecting, on the entire surface of the panel unit, whether or not the second external object approaches the entire surface.