公开(公告)号：US10444906B2

公开(公告)日：2019-10-15

申请号：US16381087

申请日：2019-04-11

Applicant: Japan Display Inc.

Inventor： Masahiro Tokita ,  Seiichi Tsuyuzaki

IPC: G06F3/041 ,  G02F1/1368 ,  G02F1/1333 ,  G06F3/044 ,  G02F1/1343

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.

公开(公告)号：US09652078B2

公开(公告)日：2017-05-16

申请号：US14663662

申请日：2015-03-20

Applicant: Japan Display Inc.

Inventor： Seiichi Tsuyuzaki ,  Masahiro Tokita

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/0412 ,  G06F3/044

Abstract: A display device is configured to (a) detect presence or absence of noise or water droplet adhesion based on current flowing through a plurality of detection electrodes upon supply of a touch panel scanning voltage to m divided blocks of the counter electrode, and (b) distinguish between noise and water droplet based on the current flowing through the detection electrodes on the assumption that a (m+1)th counter electrodes exists in addition to the m divided blocks of the counter electrode, and the touch panel scanning voltage is supplied to the (m+1)th counter electrode, which is in synchronization with the touch panel scanning voltage supplied to the m divided blocks of the counter electrode.

公开(公告)号：US10303304B2

公开(公告)日：2019-05-28

申请号：US16166304

申请日：2018-10-22

Applicant: Japan Display Inc.

Inventor： Masahiro Tokita ,  Seiichi Tsuyuzaki

IPC: G06F3/045 ,  G09G3/36 ,  G06F3/041 ,  G02F1/1368 ,  G02F1/1343 ,  G02F1/1333 ,  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.

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：US20190073087A1

公开(公告)日：2019-03-07

申请号：US16166304

申请日：2018-10-22

Applicant: Japan Display Inc.

Inventor： Masahiro TOKITA ,  Seiichi Tsuyuzaki

IPC: G06F3/041 ,  G02F1/1368 ,  G02F1/1343 ,  G06F3/044 ,  G02F1/1333

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.

公开(公告)号：US10139960B2

公开(公告)日：2018-11-27

申请号：US15172293

申请日：2016-06-03

Applicant: Japan Display Inc.

Inventor： Masahiro Tokita ,  Seiichi Tsuyuzaki

IPC: G06F3/041 ,  G02F1/1368 ,  G02F1/1343 ,  G06F3/044 ,  G02F1/1333

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.

公开(公告)号：US20160357346A1

公开(公告)日：2016-12-08

申请号：US15172293

申请日：2016-06-03

Applicant: Japan Display Inc.

Inventor： Masahiro TOKITA ,  Seiichi Tsuyuzaki

IPC: G06F3/041 ,  G02F1/1368 ,  G02F1/1343 ,  G06F3/044 ,  G02F1/1333

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。