公开(公告)号：US20150205433A1

公开(公告)日：2015-07-23

申请号：US14598514

申请日：2015-01-16

Applicant: Japan Display Inc.

Inventor： Hiroshi Mizuhashi ,  Tadayoshi Katsuta ,  Kohei Azumi ,  Daisuke Ito

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044

Abstract: According to an aspect, a touch detection device includes drive electrodes, touch detection electrodes, a signal generation unit that generates direct-current signals having voltages different from one another, a first drive unit that selectively supplies one of the direct-current signals to the drive electrodes, an element, a second drive unit that selectively supplies one of the direct-current signals to one end of the element in synchronization with the first drive unit, and a detection unit that acquires output values from the touch detection electrodes and an output value from the element at the same time, and detects proximity or contact of a target object based on values obtained by correcting the output values from the touch detection electrodes using the output value from the element.

Abstract translation: 根据一个方面，触摸检测装置包括驱动电极，触摸检测电极，产生具有彼此不同电压的直流信号的信号产生单元，第一驱动单元，其选择性地将一个直流信号提供给 驱动电极，元件，第二驱动单元，其与第一驱动单元同步地选择性地将一个直流信号提供给元件的一端;以及检测单元，其从触摸检测电极获取输出值和输出 并且基于通过使用来自元件的输出值校正来自触摸检测电极的输出值而获得的值来检测目标对象的接近度或接触。

公开(公告)号：US12025895B2

公开(公告)日：2024-07-02

申请号：US18311300

申请日：2023-05-03

Applicant: Japan Display Inc.

Inventor： Daisuke Ito ,  Hideyuki Omori

IPC: G02F1/1362 ,  G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/136286 ,  G02F1/133707 ,  G02F1/133784 ,  G02F1/134363 ,  G02F1/134372 ,  G02F2201/52

Abstract: A liquid crystal display device includes: a plurality of scan lines and signal lines on one of a pair of substrates arranged to be opposed to each other with a liquid crystal layer sandwiched therebetween, the scan lines and signal lines extending in different directions; and an orientation film, pixel electrode, insulating layer and common electrode, the orientation film being rubbed in a rubbing direction having a given inclination with respect to a pixel arrangement direction. The pixel electrode is partitioned by the scan lines and signal lines and has subpixels made up of first and second regions. The first region has a plurality of slit-shaped openings having a given inclination in a first direction with respect to the rubbing direction. The second region has a plurality of slit-shaped openings having a given inclination in a second direction with respect to the rubbing direction.

公开(公告)号：US11675240B2

公开(公告)日：2023-06-13

申请号：US17572744

申请日：2022-01-11

Applicant: Japan Display Inc.

Inventor： Daisuke Ito ,  Hideyuki Omori

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1337

CPC classification number: G02F1/136286 ,  G02F1/133707 ,  G02F1/133784 ,  G02F1/134363 ,  G02F1/134372 ,  G02F2201/52

Abstract: A liquid crystal display device includes: a plurality of scan lines and signal lines on one of a pair of substrates arranged to be opposed to each other with a liquid crystal layer sandwiched therebetween, the scan lines and signal lines extending in different directions; and an orientation film, pixel electrode, insulating layer and common electrode, the orientation film being rubbed in a rubbing direction having a given inclination with respect to a pixel arrangement direction. The pixel electrode is partitioned by the scan lines and signal lines and has subpixels made up of first and second regions. The first region has a plurality of slit-shaped openings having a given inclination in a first direction with respect to the rubbing direction. The second region has a plurality of slit-shaped openings having a given inclination in a second direction with respect to the rubbing direction.

公开(公告)号：US11429212B2

公开(公告)日：2022-08-30

申请号：US17025456

申请日：2020-09-18

Applicant: Japan Display Inc.

Inventor： Daisuke Ito ,  Hiroshi Mizuhashi ,  Makoto Hayashi ,  Yasuyuki Teranishi ,  Tadayoshi Katsuta

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/133 ,  G02F1/1343 ,  G09G3/36 ,  G02F1/1333

Abstract: A touch detection device is provided and includes driving electrodes for detecting an external proximity object, extending in first direction and arranged in second direction; first voltage line extending in second direction; second voltage line extending in second direction; third voltage line extending in second direction, third voltage line being narrower in than first voltage line and second voltage line in width; and switching circuit for electrically connecting driving electrodes and first voltage line, second voltage line, or third voltage line.

公开(公告)号：US10896653B2

公开(公告)日：2021-01-19

申请号：US16260812

申请日：2019-01-29

Applicant: Japan Display Inc.

Inventor： Hidemasa Yamaguchi ,  Hironao Tanaka ,  Daisuke Ito

IPC: G09G3/36 ,  G02F1/1335 ,  G02F1/133 ,  G02F1/1343 ,  H01L27/12

Abstract: A display device includes: pixels corresponding to respective colors arranged in matrix, wherein each pixel has a pixel circuit portion in which a circuit for display driving of the pixel is arranged and a pixel opening to be an area obtaining effective display light, the pixel openings of the pixels corresponding to at least one color have an area different from areas of the pixel openings of pixels corresponding to other colors.

公开(公告)号：US20200064957A1

公开(公告)日：2020-02-27

申请号：US16665632

申请日：2019-10-28

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Yasuyuki Teranishi ,  Hiroshi Mizuhashi ,  Koji Ishizaki ,  Daisuke Ito

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

Abstract: According to one embodiment, a sensor-equipped display device includes first electrodes and a detection electrode. The first electrodes constitute sensor drive electrodes by being supplied with sensor drive signals separately and sequentially or sensor drive electrodes by simultaneously supplying the sensor drive signals to the first electrodes adjacent to each other. A width of the sensor drive electrode including the first electrode on the edge is smaller than a width of the other sensor drive electrode not including the first electrode on the edge.

公开(公告)号：US10534465B2

公开(公告)日：2020-01-14

申请号：US16251190

申请日：2019-01-18

Applicant: Japan Display Inc.

Inventor： Tadayoshi Katsuta ,  Koji Noguchi ,  Daisuke Ito ,  Yasuyuki Teranishi

IPC: G06F3/045 ,  G06F3/041 ,  G06F3/044 ,  G09G3/36

Abstract: A performance of a display device having an input device is improved. A display device includes: an electro-optical layer; a first driving electrode and a second driving electrode which drives the electro-optical layer; a driver chip which outputs a video signal; a switch circuit which is arranged outside the driver chip, which selects a potential to be supplied to the second driving electrode, and which includes a first switch element and a second switch element; a shift register circuit connected to the switch circuit; and a detection circuit which detects that an object is close or in contact. Each of the first switch element and the second switch element is selectively turned ON or OFF by the shift register circuit. The detection circuit is electrically connected to the first switch element and the second switch element.

公开(公告)号：US10521044B2

公开(公告)日：2019-12-31

申请号：US15895135

申请日：2018-02-13

Applicant: Japan Display Inc.

Inventor： Akihiko Fujisawa ,  Daisuke Ito

IPC: G06F3/041 ,  G06F3/044

Abstract: The display device includes a detection circuit, a touch detection region including a plurality of detection electrodes, a peripheral region around the touch detection region, a plurality of wirings passing the peripheral region from the detection electrodes so as to be connected to the detection circuit, and at least one auxiliary wiring extending parallel to the wirings so as to be connected to the detection circuit.

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.

公开(公告)号：US10095338B2

公开(公告)日：2018-10-09

申请号：US15424079

申请日：2017-02-03

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Yasuyuki Teranishi ,  Hiroshi Mizuhashi ,  Koji Ishizaki ,  Daisuke Ito

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

Abstract: According to one embodiment, a sensor-equipped display device includes first electrodes and a detection electrode. The first electrodes constitute sensor drive electrodes by being supplied with sensor drive signals separately and sequentially or sensor drive electrodes by simultaneously supplying the sensor drive signals to the first electrodes adjacent to each other. A width of the sensor drive electrode including the first electrode on the edge is smaller than a width of the other sensor drive electrode not including the first electrode on the edge.