公开(公告)号：US10120521B2

公开(公告)日：2018-11-06

申请号：US15684542

申请日：2017-08-23

Applicant: Japan Display Inc.

Inventor： Tadayoshi Katsuta

IPC: G06F3/044 ,  G06F3/041

Abstract: A display device with a touch detecting function includes wiring for touch arranged in a peripheral area positioned on the outside of a display area, and a selection switch that selects one of drive electrodes to be coupled to the wiring for touch. A drive electrode scanning unit selects one of drive electrodes and includes a plurality of transfer circuits in the peripheral area. Part of the transfer circuits is a transfer circuit that performs output to the selection switch.

公开(公告)号：US10032801B2

公开(公告)日：2018-07-24

申请号：US15042826

申请日：2016-02-12

Applicant: Japan Display Inc.

Inventor： Tadayoshi Katsuta

IPC: G02F1/136 ,  H01L27/12 ,  G02F1/1335 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/1345 ,  G02F1/1362 ,  H01L29/786

Abstract: A load related to a scanning line is decreased and a load related to a common electrode is decreased without decrease in an aperture ratio of each pixel. A display apparatus has a red sub-pixel and a green sub-pixel. A distance in the Y-axis direction between a pedestal electrode and a scanning line that drives a transistor in a plan view in the red sub-pixel is longer than a distance in the Y-axis direction between a pedestal electrode and a scanning line that drives a transistor in a plan view in the green sub-pixel. Furthermore, a superposed width of a light shielding film with a red pixel region in the Y-axis direction is larger than a superposed width of the light shielding film with a green pixel region in the Y-axis direction.

公开(公告)号：US09837033B2

公开(公告)日：2017-12-05

申请号：US14989649

申请日：2016-01-06

Applicant: Japan Display Inc.

Inventor： Tadayoshi Katsuta

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

CPC classification number: G09G3/3648 ,  G06F3/0418 ,  G06F3/044 ,  G09G3/3611 ,  G09G2300/0426 ,  G09G2310/08

Abstract: According to an aspect, a display device includes: a display region in which a plurality of pixels are arranged in a matrix; a plurality of signal lines that extend in a second direction in the display region; a vertical drive circuit that is coupled to first ends of the scanning lines and applies a vertical scanning pulse to the first ends to select each row of the pixels in the display region; a horizontal drive circuit that performs a display operation of supplying an image signal to each of the pixels in the row selected by the vertical drive circuit through the signal lines; and a plurality of switches that are coupled to second ends of the scanning lines respectively. Each of the switches supplies the same potential as that supplied to the first ends by the vertical drive circuit to the second end corresponding thereto in an idle period.

公开(公告)号：US20170123535A1

公开(公告)日：2017-05-04

申请号：US15403897

申请日：2017-01-11

Applicant: Japan Display Inc.

Inventor： Takeya Takeuchi ,  Hiroshi Mizuhashi ,  Tadayoshi Katsuta ,  Takehiro Shima

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

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04104 ,  G06F2203/04108 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2300/0809 ,  G09G2310/0291

Abstract: A display device with a touch sensor includes: plural display pixel electrodes; a common electrode arranged opposite to the display pixel electrodes; a display function layer having an image display function; a display control circuit performing image display control so as to fulfill the display function of the display function layer by applying a voltage for display between the display pixel electrodes and the common electrode based on an image signal; and a touch detection electrode provided opposite to the common electrode and forming capacitance between the touch detection electrode and the common electrode, wherein a drive voltage for display applied to the common electrode by the display control circuit is used as a drive signal for the touch sensor, and a gate potential of TFT circuits included in the display pixel electrodes is increased during a period when the drive signal for the touch sensor is applied.

公开(公告)号：US09513754B2

公开(公告)日：2016-12-06

申请号：US14546546

申请日：2014-11-18

Applicant: Japan Display Inc.

Inventor： Tadayoshi Katsuta

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04108

Abstract: A display device with a touch detecting function includes wiring for touch arranged in a peripheral area positioned on the outside of a display area, and a selection switch that selects one of drive electrodes to be coupled to the wiring for touch. A drive electrode scanning unit selects one of drive electrodes and includes a plurality of transfer circuits in the peripheral area. Part of the transfer circuits is a transfer circuit that performs output to the selection switch.

Abstract translation: 具有触摸检测功能的显示装置包括布置在位于显示区域外部的外围区域中的触摸布线，以及选择开关，其选择要与触摸的布线耦合的驱动电极中的一个。 驱动电极扫描单元选择驱动电极中的一个并且在周边区域中包括多个传输电路。 传输电路的一部分是向选择开关输出的传输电路。

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：US12292658B2

公开(公告)日：2025-05-06

申请号：US17221089

申请日：2021-04-02

Applicant: Japan Display Inc.

Inventor： Tadayoshi Katsuta ,  Shunsuke Noichi ,  Yasuyuki Teranishi ,  Satoshi Uchino ,  Hayato Kurasawa ,  Yoshiharu Nakajima

IPC: H10D30/67 ,  G02F1/1343 ,  G02F1/1345 ,  G02F1/1362 ,  G02F1/1368 ,  H10D86/40 ,  H10D86/60

Abstract: A display device includes a display region having a plurality of pixels, a driver IC provided in a frame region on an outer side of the display region and configured to drive the pixels, a first power source wiring line and a second power source wiring line each electrically coupled to the driver IC, and a first electrode that is arranged so as to face the first power source wiring line and the second power source wiring line via a first insulating layer, and is electrically coupled to the first power source wiring line.

公开(公告)号：US12119358B2

公开(公告)日：2024-10-15

申请号：US17714478

申请日：2022-04-06

Applicant: Japan Display Inc.

Inventor： Tadayoshi Katsuta

IPC: H01L33/00 ,  A61B5/1172 ,  H01L27/146 ,  G06V40/13

CPC classification number: H01L27/14607 ,  A61B5/1172 ,  H01L27/14643 ,  G06V40/1318

Abstract: A detection device includes: a substrate; photoelectric conversion elements provided to the substrate; transistors; and signal lines each of which is between adjacent photoelectric conversion elements. Each detection element includes one of the photoelectric conversion element and the transistors adjacent to the photoelectric conversion element. A first signal line among the signal lines is between the photoelectric conversion element of a first detection element and the photoelectric conversion element of a second detection element adjacent to one side of the first detection element and is coupled to the first detection element and the second detection element. A second signal line among the signal lines is between the photoelectric conversion element of the first detection element and the photoelectric conversion element of a third detection element adjacent to another side of the first detection element and is coupled to the first detection element and the third detection element.

公开(公告)号：US11703968B2

公开(公告)日：2023-07-18

申请号：US17666640

申请日：2022-02-08

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Hiroshi Mizuhashi ,  Tadayoshi Katsuta

IPC: G06F3/046 ,  G06F3/044 ,  G09G3/36 ,  G06F3/041 ,  G09G3/34

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G06F3/046 ,  G06F3/0418 ,  G06F3/0445 ,  G06F3/0446 ,  G06F3/04164 ,  G06F3/04166 ,  G09G3/344 ,  G09G3/3696 ,  G06F2203/04106 ,  G06F2203/04112 ,  G09G2300/0426 ,  G09G2310/0202 ,  G09G2310/068 ,  G09G2310/08

Abstract: A display device includes a substrate, first electrodes, lines, pixel electrodes, a display functional layer, a common electrode, second electrodes, and a controller. The first electrodes are opposed to the second electrodes with a space therebetween, and an insulating layer is provided between the common electrode and the first and second electrodes. During the display periods, in response to a control signal from the controller, the pixel electrodes are supplied with a pixel signal through the lines, and the common electrode is supplied with a common signal. During the sensing period, in response to the control signal from the controller, the lines are supplied with a first drive signal to generate a magnetic field. The first electrodes are supplied with a second drive signal to generate electrostatic capacitance between themselves and the second electrodes in response to the control signal from the controller, synchronously or asynchronously with the display periods.

公开(公告)号：US11562707B2

公开(公告)日：2023-01-24

申请号：US17479090

申请日：2021-09-20

Applicant: Japan Display Inc.

Inventor： Tadayoshi Katsuta ,  Yoshikazu Hashiba

IPC: G09G3/36 ,  G06F3/041 ,  G06F3/044 ,  G11C19/28

Abstract: The display control circuit includes a drive signal generation circuit that generates a gate drive signal, a scanning line drive circuit that supplies the gate drive signal to the scanning line, and a first wire through which the gate drive signal from the drive signal generation circuit is supplied to the scanning line drive circuit. The drive signal generation circuit includes a first potential supply circuit that supplies, to the first wire, a first potential equal to or lower than an off-potential of the pixel transistor, a second potential supply circuit that supplies, to the first wire, a second potential lower than the first potential, a third potential supply circuit that supplies, to the first wire, a third potential higher than the first potential, and a fourth potential supply circuit that supplies, to the first wire, a fourth potential equal to or higher than an on-potential of the pixel transistor.