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51.发明授权公开(公告)号：US09588631B2
公开(公告)日：2017-03-07
申请号：US14824829
申请日：2015-08-12
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Yoshitoshi Kida , Kohei Azumi
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/0418 , G06F3/044 , G06F3/047 , G09G3/36 , G09G3/3677 , G09G3/3685 , G09G5/003 , G09G5/18 , G09G2300/0426 , G09G2310/0202 , G09G2310/0297 , G09G2310/08
Abstract: A display apparatus includes: a display device; a touch detection device; and a driver unit driving the display device so as to sequentially display M horizontal lines in each of plural unit drive periods forming one frame period and driving the touch detection device in N touch detection periods provided in each unit drive period, in which N is lower than M.
Abstract translation: 一种显示装置，包括：显示装置; 触摸检测装置; 以及驱动单元，驱动显示装置，以便在形成一个帧周期的多个单位驱动周期中顺序地显示M个水平线，并且在N个较低的每个单位驱动周期中提供的N个触摸检测周期中驱动该触摸检测装置 比M.
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公开(公告)号：US20160349911A1
公开(公告)日：2016-12-01
申请号：US15234474
申请日：2016-08-11
Applicant: Japan Display Inc.
Inventor： Kohei Azumi , Yoshitoshi Kida , Koji Noguchi , Koji Ishizaki
IPC: G06F3/041 , G02F1/1333 , G06F3/044
CPC classification number: G06F3/0416 , G02F1/13338 , G02F1/133514 , G02F1/133528 , G02F1/134336 , G02F1/13439 , G02F1/1368 , G02F2001/133302 , G02F2201/123 , G06F3/0412 , G06F3/044 , G06F2203/04112
Abstract: A touch detector capable of achieving high position resolution while improving detection sensitivity to a touch is provided. The touch detector includes: a plurality of drive electrodes arranged side by side to extend in one direction; a detection electrode extending in a direction orthogonal to a direction where the drive electrodes extend, and arranged to form a capacitance at each of intersections with the drive electrodes; and a scanning drive section sequentially selecting a predetermined plural number of target electrodes from the plurality of drive electrodes in a time-divisional manner, and applying a touch detection drive signal with a plurality of pulse waveforms for detecting an external adjacent object to the selected target electrodes to perform a scanning drive. A scanning pitch in the scanning drive is smaller than the total width of the plural number of selected target electrodes.
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公开(公告)号：US20150294629A1
公开(公告)日：2015-10-15
申请号：US14739707
申请日：2015-06-15
Applicant: Japan Display Inc.
Inventor： Yoshitoshi Kida , Kohei Azumi , Koji Noguchi , Koji Ishizaki
CPC classification number: G09G3/3611 , G02F1/13338 , G06F3/0416 , G06F3/044 , G09G3/3648 , G09G3/3674 , G09G3/3685 , G09G2310/0278 , G09G2310/065 , G09G2320/0219
Abstract: A display unit with touch detection function includes a plurality of pixel signal lines each transmitting a pixel signal for display; a pixel signal line drive section applying the pixel signal to each of the pixel signal lines; display elements each performing display based on the pixel signal; touch detection electrodes each outputting a detection signal based on a change in capacitance occurring due to an external proximity object; and a touch detection section detecting, in a touch detection period, a touch event based on the detection signal, the touch detection period being different from a display period for the display elements to perform display operation. The pixel signal line drive section maintains a voltage of each of the pixel signal lines at a certain level during the touch detection period.
Abstract translation: 具有触摸检测功能的显示单元包括多个像素信号线，每个像素信号线都传输用于显示的像素信号; 像素信号线驱动部，将像素信号施加到各像素信号线; 显示单元，其基于所述像素信号进行显示; 触摸检测电极，其基于由于外部邻近物体而发生的电容的变化而输出检测信号; 以及触摸检测部，其在触摸检测期间，根据所述检测信号检测所述触摸事件，所述触摸检测期间与所述显示元件的显示期间不同，进行显示操作。 像素信号线驱动部分在触摸检测周期期间将每个像素信号线的电压保持在一定水平。
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公开(公告)号：US20150199057A1
公开(公告)日：2015-07-16
申请号：US14668580
申请日：2015-03-25
Applicant: Japan Display Inc.
Inventor： Yuichiro Minami , Masahiro Minegishi , Koji Noguchi , Koji Ishizaki , Yoshitoshi Kida , Kohei Azumi
CPC classification number: G06F3/047 , G06F3/044 , G09G3/3611 , G09G2300/0426
Abstract: A display device with a touch detection function includes a display function layer, a plurality of touch detection electrodes arranged side by side to extend in a first direction, and a plurality of drive electrodes arranged side by side to extend in a second direction, electrostatic capacitance being formed at intersections of the touch detection electrodes and the drive electrodes. The plurality of drive electrodes extends to a first position or a second position outside of the first position, the first position being away from a center of an outermost touch detection electrode by a half length of an arrangement pitch of the touch detection electrodes, the outermost touch detection electrode being defined as outermost one of touch detection electrodes included in an effective display region of the display function layer, and an outer edge of the effective display region is located on or inside the first position.
Abstract translation: 具有触摸检测功能的显示装置包括显示功能层，并排布置成沿第一方向延伸的多个触摸检测电极以及并排设置的多个沿第二方向延伸的驱动电极，静电电容 形成在触摸检测电极和驱动电极的交点处。 多个驱动电极延伸到第一位置外的第一位置或第二位置，第一位置远离最外触摸检测电极的中心半个长度的触摸检测电极的排列间距，最外侧 触摸检测电极被定义为包括在显示功能层的有效显示区域中的触摸检测电极的最外面的一个，并且有效显示区域的外边缘位于第一位置或内部。
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55.发明申请公开(公告)号：US20140292709A1
公开(公告)日：2014-10-02
申请号：US14198224
申请日：2014-03-05
Applicant: Japan Display Inc.
Inventor： Hiroshi Mizuhashi , Tadayoshi Katsuta , Yoshitoshi Kida
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044
Abstract: According to an aspect, a display device with a touch detection function includes: a display region; a plurality of drive electrodes; a control device; a touch detection electrode that is opposed to the drive electrodes and forms capacitance with respect to the drive electrodes; power supply wiring arranged in a frame region positioned outside the display region; and a plurality of drive electrode scanning units that select the drive electrode to be coupled to the power supply wiring. when the drive electrode scanning unit simultaneously selects the drive electrodes of which number is equal to or larger than the number of pieces of the power supply wiring, the control device supplies a touch driving signal that is multiplexed based on a certain code to each of the selected drive electrodes.
Abstract translation: 根据一方面，具有触摸检测功能的显示装置包括：显示区域; 多个驱动电极; 控制装置; 触摸检测电极，其与驱动电极相对并相对于驱动电极形成电容; 布置在位于显示区域外部的框架区域中的电源布线; 以及选择要耦合到电源布线的驱动电极的多个驱动电极扫描单元。 当驱动电极扫描单元同时选择数量等于或大于电源布线数量的驱动电极时，控制装置将基于特定代码复用的触摸驱动信号提供给每个 选定的驱动电极。
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Patent Agency Ranking
公开(公告)号：US20140292677A1
公开(公告)日：2014-10-02
申请号：US14182432
申请日：2014-02-18
Applicant: Japan Display Inc.
Inventor： Michio Yamamoto , Jouji Yamada , Hirofumi Nakagawa , Kohei Azumi , Makoto Hayashi , Hiroshi Mizuhashi , Kozo Ikeno , Yoshitoshi Kida
IPC: G06F3/041
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/044
Abstract: According to one embodiment, an electronic device includes a display device includes a plurality of first electrodes arranged in a matrix form, second electrodes opposite to the first electrodes, the second electrodes including a plurality of electrode patterns extending in a first direction and aligned in a second direction to cross the first direction, and third electrodes opposite to the second electrodes, the third electrodes including a plurality of electrode patterns extending in the second direction and aligned in the first direction, a display driver applying a sensor drive signal to the second electrodes, a detection circuit transmitting a detection data including physical quantity data detected from the plurality of electrode patterns of the third electrodes at each time when the sensor drive signal is applied to the second electrodes, and an application processor processing the detection data received from the detection circuit.
Abstract translation: 根据一个实施例，电子设备包括显示设备，其包括以矩阵形式布置的多个第一电极，与第一电极相对的第二电极，第二电极包括沿第一方向延伸并对齐于第一电极的多个电极图案 与第二电极相对的第二方向，第三电极包括沿第二方向延伸并沿第一方向排列的多个电极图案;显示驱动器，将传感器驱动信号施加到第二电极 检测电路，其在将传感器驱动信号施加到第二电极的每个时间发送包括从第三电极的多个电极图案检测到的物理量数据的检测数据，以及处理从检测接收到的检测数据的应用处理器 电路。
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公开(公告)号：US12025875B2
公开(公告)日：2024-07-02
申请号：US18315566
申请日：2023-05-11
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Daisuke Takama , Yoshitoshi Kida
IPC: G06F3/044 , G02F1/1333 , G02F1/1343 , G06F3/041 , G09G3/36
CPC classification number: G02F1/13338 , G02F1/134363 , G06F3/0412 , G06F3/044 , G06F3/0443 , G06F3/0445 , G06F3/0446 , G02F1/134372 , G02F2201/12 , G09G3/3648
Abstract: A common electrode for a display, which is originally provided in a liquid crystal display element, is also used as one (drive electrode) of a pair of electrodes for a touch sensor, and the other (detection-electrode-for-the-sensor) of the pair of electrodes is newly formed. An existing common drive signal as a drive signal for display is used in common for a drive signal for the touch sensor. A capacitance is formed between the common electrode and the detection-electrode-for-the-sensor, and touch detection is performed by utilizing a change of this capacitance caused by a finger touch of a user. Thus, a display device with a touch sensor is also applicable to a mobile device in which electric potential of the user is inconstant in many cases. The newly-provided electrode is only the detection-electrode-for-the-sensor, and it is unnecessary to newly prepare a drive signal for the touch sensor.
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公开(公告)号：US11966527B2
公开(公告)日：2024-04-23
申请号：US18111650
申请日：2023-02-20
Applicant: Japan Display Inc.
Inventor： Yoshitoshi Kida , Koji Noguchi , Hiroshi Mizuhashi , Kohei Azumi
IPC: G06F3/041 , G06F3/044 , H03K17/96 , G02F1/1333
CPC classification number: G06F3/0412 , G06F3/0445 , G06F3/0446 , H03K17/9622 , G02F1/13338 , H03K2217/96031
Abstract: There are provided a display panel with a touch detection function, a drive circuit, and an electronic unit, which make it possible to realize many functions related to touch detection. The display panel includes: one or more display elements; one or more drive electrodes extending in one direction; an electrode drive section integrated into a chip, and applying a drive signal to the drive electrodes; and one or more touch detection electrodes extending in a direction intersecting the direction in which the drive electrodes extend.
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59.发明公开公开(公告)号：US20230289006A1
公开(公告)日：2023-09-14
申请号：US18295295
申请日：2023-04-04
Applicant: Japan Display Inc.
Inventor： Hiroshi Mizuhashi , Yoshitoshi Kida , Koji Noguchi
CPC classification number: G06F3/0412 , G06F3/0445 , G06F3/0446
Abstract: A display panel with a touch detection function, in which display operation is less affected by touch detection operation, a method of driving the display panel with a touch detection function, a driving circuit, and an electronic unit having the display panel with a touch detection function are disclosed. The display panel with a touch detection function includes: one or more display elements; one or more drive electrodes; one or more touch detection electrodes; and a drive section selectively applying a DC drive signal or an AC drive signal to the drive electrodes.
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公开(公告)号：US20230116343A1
公开(公告)日：2023-04-13
申请号：US18078410
申请日：2022-12-09
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Yoshitoshi Kida , Kohei Azumi
Abstract: A display device is provided and includes signal line; pixel electrode; drive electrode opposed to pixel electrode; scanning lines; and display periods and a detection period in frame, wherein during one of display periods, common voltage is applied to drive electrode, scanning signal is applied to some scanning lines, pixel signal is applied to pixel electrode, wherein, during detection period, AC drive or pulse signal is applied to drive electrode, AC drive or pulse signal having pulses, wherein pulses during the detection period is less than number of some of scanning signal lines.
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