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公开(公告)号：US20140085235A1
公开(公告)日：2014-03-27
申请号：US14025103
申请日：2013-09-12
Applicant: Japan Display Inc.
Inventor： Masahiro TOKITA , Seiichi TSUYUZAKI
IPC: G06F3/041
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。
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公开(公告)号：US20140160371A1
公开(公告)日：2014-06-12
申请号：US14094991
申请日：2013-12-03
Applicant: JAPAN DISPLAY INC.
Inventor： Masahiro TOKITA , Masashi TAKAHATA
IPC: G02F1/1333 , G02F1/13
CPC classification number: G02F1/13338 , G02F1/1309 , G02F1/133528 , G02F1/134309 , G02F1/136286 , G02F1/1368 , G02F2001/133302 , G02F2001/134318 , G02F2001/136254 , G02F2202/28 , G06F3/0412 , G06F3/0414 , G06F3/0418 , G06F3/044 , G06F2203/04102 , G09G3/3655 , G09G2354/00
Abstract: A liquid crystal display device with a plurality of pixels arranged in a matrix includes a first substrate, a second substrate, a liquid crystal interposed between the first and the second substrates, and a detection circuit. The second substrate includes a detection electrode for a touch panel. The respective pixels have pixel electrodes and counter electrodes. The counter electrode divided into a plurality of blocks is provided common to the respective pixels on a plurality of consecutive display lines. The counter electrode divided into blocks serves as the scanning electrode for the touch panel. The detection circuit includes a calibration capacity element provided for each of the detection electrodes, having one end connected to the detection electrode, and supplies a calibration voltage to the other end of the calibration capacity element in a touched position detection process.
Abstract translation: 具有排列成矩阵状的多个像素的液晶显示装置包括第一基板，第二基板，插入在第一基板和第二基板之间的液晶，以及检测电路。 第二基板包括用于触摸面板的检测电极。 各像素具有像素电极和对电极。 被分成多个块的对置电极对多个连续显示行上的各个像素共同设置。 分为块的对置电极用作触摸面板的扫描电极。 检测电路包括为每个检测电极提供的校准电容元件，其一端连接到检测电极，并且在触摸位置检测处理中将校准电压提供给校准电容元件的另一端。
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公开(公告)号：US20140139757A1
公开(公告)日：2014-05-22
申请号：US14082294
申请日：2013-11-18
Applicant: Japan Display Inc.
Inventor： Kazuki TAMANAGA , Masahiro TOKITA
IPC: G02F1/1333
CPC classification number: G06F3/044 , G06F3/0412
Abstract: A liquid crystal display device having a plurality of pixels arranged in a matrix form includes a liquid crystal display panel which includes: a first substrate, a second substrate, and liquid crystal sealed between the first substrate and the second substrate. The second substrate includes detection electrodes for a touch panel. Each of the pixels has a pixel electrode and a counter electrode. The counter electrode is divided into a plurality of blocks. The counter electrode in each of the divided blocks is provided in common for the respective pixels in a plurality of consecutive display lines. The counter electrode in each of the divided blocks doubles as a scanning electrode for the touch panel. The liquid crystal display device includes means which, in a low-power standby mode, detects the presence of a touch by using only the plural detection electrodes.
Abstract translation: 具有以矩阵形状排列的多个像素的液晶显示装置包括：液晶显示面板，包括：第一基板，第二基板和密封在第一基板和第二基板之间的液晶。 第二基板包括用于触摸面板的检测电极。 每个像素具有像素电极和对电极。 对电极被分成多个块。 每个分割块中的对电极为多个连续显示行中的各个像素共同设置。 每个分割块中的对电极兼作触摸面板的扫描电极。 液晶显示装置包括：在低功率待机模式中，仅使用多个检测电极来检测触摸的存在的装置。
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公开(公告)号：US20190235700A1
公开(公告)日：2019-08-01
申请号：US16381087
申请日：2019-04-11
Applicant: Japan Display Inc.
Inventor： Masahiro TOKITA , Seiichi TSUYUZAKI
IPC: G06F3/041 , G02F1/1368 , G02F1/1343 , 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.
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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.
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Patent Agency Ranking
公开(公告)号：US20170131829A1
公开(公告)日：2017-05-11
申请号：US15297875
申请日：2016-10-19
Applicant: Japan Display Inc.
Inventor： Keiichiro TAKAHASHI , Masahiro TOKITA
CPC classification number: G06F3/0416 , G06F1/3262 , G06F3/0412 , G06F3/0418 , G06F3/044 , G06F2203/04101
Abstract: According to an aspect, a display device with a touch detection function performs image display and touch detection in a time division manner in one frame period. The display device includes: a plurality of pixel electrodes arranged in a matrix in a display region in which an image is displayed; a display function layer having an image display function for displaying an image in the display region; a plurality of touch detection electrodes opposed to the pixel electrodes; and a detection unit that performs noise detection. The one frame period includes a plurality of display operation periods for displaying the image and a plurality of detection operation periods for performing at least touch detection. The detection unit performs the noise detection in a period that is included in the detection operation period and shorter than one of the detection operation periods in the one frame period.
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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。
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公开(公告)号：US20150161954A1
公开(公告)日：2015-06-11
申请号：US14564125
申请日：2014-12-09
Applicant: Japan Display Inc.
Inventor： Masahiro TOKITA , Toshiaki ATSUTA
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.
Abstract translation: 显示装置被配置为显示状态以允许公共电极用作用于显示的电极和用于触摸面板的扫描电极，向其提供公共电压和第一扫描脉冲电压，并且允许检测电路 基于由第一和第二检测电极检测的电压来检测触摸位置。 在显示停止状态下，第一检测电极被配置为用作临时扫描电极，并且检测电路被配置为向第一检测电极提供第二扫描脉冲电压，以便基于电压检测擦拭的存在 由第二检测电极检测。
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公开(公告)号：US20170308231A1
公开(公告)日：2017-10-26
申请号：US15645177
申请日：2017-07-10
Applicant: Japan Display Inc.
Inventor： Masahiro TOKITA , Toshiaki ATSUTA
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.
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公开(公告)号：US20160342268A1
公开(公告)日：2016-11-24
申请号：US15229784
申请日：2016-08-05
Applicant: Japan Display Inc.
Inventor： Masahiro TOKITA , Toshiaki ATSUTA
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.
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