公开(公告)号：US09874971B2

公开(公告)日：2018-01-23

申请号：US15645177

申请日：2017-07-10

Applicant: Japan Display Inc.

Inventor： Masahiro Tokita ,  Toshiaki Atsuta

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044

Abstract: A display device is configured in a display state to allow the common electrode to function as an electrode for display and a scanning electrode for a touch panel, to which a common voltage and a first scanning pulse voltage are supplied, and to allow a detection circuit to detect a touched position based on the voltage detected by the first and the second detection electrodes. In a display stop state, the first detection electrode is configured to function as a temporary scanning electrode, and the detection circuit is configured to supply a second scanning pulse voltage to the first detection electrode so as to detect existence of a swipe based on the voltage detected by the second detection electrode.

公开(公告)号：US09383862B2

公开(公告)日：2016-07-05

申请号：US14025103

申请日：2013-09-12

Applicant: Japan Display Inc.

Inventor： Masahiro Tokita ,  Seiichi Tsuyuzaki

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G02F1/13338 ,  G02F1/134309 ,  G02F1/1368 ,  G06F3/0412 ,  G06F3/044

Abstract: An in-cell type liquid crystal display device includes a first unit that detects whether a touch is present, or not, on the basis of a current flowing in a plurality of detection electrodes when a touch panel scanning voltage is applied to counter electrodes of each of M (M≧2) divided blocks, and a second unit that detects noise on the basis of a current flowing in the plurality of detection electrodes, assuming that an (M+1)th counter electrode is present for the counter electrodes of each of the M divided blocks, and assuming that a touch panel scanning voltage synchronous with the touch panel scanning voltage applied to the counter electrodes of each of the M divided blocks is applied to the (M+1)th counter electrode.

Abstract translation: 单元型液晶显示装置包括：第一单元，其基于在多个检测电极中流动的电流来检测是否存在触摸，当将触摸面板扫描电压施加到每个检测电极的对电极时 M个（M≥2）个分割块，以及第二单元，其基于在多个检测电极中流动的电流来检测噪声，假设对于每个检测电极的对电极存在第（M + 1）个对电极 并且假设与施加到每个M个分割块的对置电极的触摸面板扫描电压同步的触摸面板扫描电压被施加到第（M + 1）个对电极。

公开(公告)号：US09317169B2

公开(公告)日：2016-04-19

申请号：US14564125

申请日：2014-12-09

Applicant: Japan Display Inc.

Inventor： Masahiro Tokita ,  Toshiaki Atsuta

IPC: G06F3/0488 ,  G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044

Abstract: A display device is configured in a display state to allow the common electrode to function as an electrode for display and a scanning electrode for a touch panel, to which a common voltage and a first scanning pulse voltage are supplied, and to allow a detection circuit to detect a touched position based on the voltage detected by the first and the second detection electrodes. In a display stop state, the first detection electrode is configured to function as a temporary scanning electrode, and the detection circuit is configured to supply a second scanning pulse voltage to the first detection electrode so as to detect existence of a swipe based on the voltage detected by the second detection electrode.