公开(公告)号：US10386955B2

公开(公告)日：2019-08-20

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 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/133 ,  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.