公开(公告)号：US11106300B2

公开(公告)日：2021-08-31

申请号：US16535465

申请日：2019-08-08

Applicant: Japan Display Inc.

Inventor： Satoshi Uchino ,  Kohei Azumi

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/046

Abstract: A display device according to an aspect of the present invention includes a display panel, a driver IC configured to perform image display on the display panel, and a plurality of touch ICs. One of the touch ICs is configured to be driven based on a synchronization signal that is output from the driver IC, and output a synchronization signal for another touch IC. The other touch IC is configured to be driven based on a synchronization signal that is output from the one touch IC.

公开(公告)号：US11009984B2

公开(公告)日：2021-05-18

申请号：US16563405

申请日：2019-09-06

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Yoshitoshi Kida ,  Kohei Azumi

IPC: G06F3/041 ,  G06F3/047 ,  G09G5/00 ,  G09G5/18 ,  G09G3/36 ,  G06F3/044

Abstract: A display device is provided and includes scanning signal lines including a first scanning signal line; pixel signal lines including a first pixel signal line; switch elements including a first switch being electrically coupled to the first scanning signal line and the pixel signal line; pixel electrodes including a first pixel electrode being electrically coupled to the first switch element; drive electrodes including a first drive electrode opposed to the first pixel electrode; a driver configured to drive the scanning signal lines, the pixel signal lines, and the drive electrodes; and a controller configured to control the driver in a frame.

公开(公告)号：US10739903B2

公开(公告)日：2020-08-11

申请号：US15858380

申请日：2017-12-29

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Kohei Azumi ,  Koji Ishizaki ,  Hideki Kaneko ,  Tsutomu Harada

IPC: G06F3/041 ,  G06F3/045 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1343 ,  G06F3/044

Abstract: The reliability of a display device with an input device is improved. A plurality of detection electrodes (input position detection electrodes) forming an electrostatic capacity between them and a common electrode of a display device to detect an input position are formed on a different substrate from substrates configuring the display device. Moreover, a polarizing plate and the substrate on which the plurality of detection electrodes are formed are adhesively fixed via, for example, an adhesive layer so that the plurality of detection electrodes are fixed so as to be separated apart from the display device. Thus, a distance between electrodes (the detection electrode and a driving electrode) for detecting an input position can be set separately from a thickness of the display device, and therefore, reduction in detection sensitivity (detection reliability) for the input position due to increase in the electrostatic capacity can be suppressed.

公开(公告)号：US10261627B2

公开(公告)日：2019-04-16

申请号：US15624024

申请日：2017-06-15

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Koji Ishizaki ,  Kohei Azumi

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36 ,  G06T5/20 ,  G09G3/20

Abstract: A display device includes: a display layer; plural first electrodes formed to be arranged above the display layer; a shield electrode formed apart from the plural first electrodes so as to surround the whole plural first electrodes along an arrangement surface; an insulating layer; and a semiconductive layer formed opposite to the first electrodes and the shield electrode so as to sandwich the insulating layer, wherein the difference between an average potential of the first electrodes and an average potential of the shield electrode is equal to or less than 0.5V.

公开(公告)号：US10185434B2

公开(公告)日：2019-01-22

申请号：US15336290

申请日：2016-10-27

Applicant: Japan Display Inc.

Inventor： Takafumi Suzuki ,  Kohei Azumi

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

Abstract: A display device is provided. The display device including a display panel including a display area, a frame area; a plurality of pixel electrodes in the display area; a plurality of share electrodes in the display area; a display function layer controlled by the pixel electrodes and the share electrodes; a plurality of touch detect electrodes forming capacitors with the plurality of the share electrodes; a circuit for generating signals to apply to the share electrodes; and a plurality of wirings coupled to the circuit and the share electrodes in the frame area, wherein the longer a path including each of the share electrodes and each of the wirings is, the shorter pulses of each of the signals become.

公开(公告)号：US20180348915A1

公开(公告)日：2018-12-06

申请号：US16058565

申请日：2018-08-08

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Hayato Kurasawa ,  Kohei Azumi

IPC: G06F3/044 ,  G06F3/041 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1343

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/134336 ,  G02F2201/123 ,  G02F2201/52 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04107 ,  G06F2203/04108 ,  G06F2203/04111 ,  G06F2203/04112

Abstract: According to an aspect, a display device with a touch detection function includes: a substrate; a drive electrode that extends in a first direction; and a plurality of touch detection electrodes that are metal wirings extending in a second direction different from the first direction. The metal wirings are arranged with a predetermined pitch so as to make capacitive coupling with the drive electrode.

公开(公告)号：US20180260073A1

公开(公告)日：2018-09-13

申请号：US15978890

申请日：2018-05-14

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Yoshitoshi Kida ,  Kohei Azumi ,  Takayuki Nakanishi ,  Hiroshi Mizuhashi

IPC: G06F3/041 ,  G02F1/1368 ,  G02F1/1335 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1343 ,  G02F1/1337

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/133707 ,  G02F1/134336 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/133302 ,  G02F2201/123 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04108

Abstract: A display device including a display section having a plurality of pixel electrodes; and a plurality of drive electrodes extending in a first direction and arranged side-by-side in a second direction. Each of the drive electrodes has a width in the second direction corresponding to a size of the two or more pixel electrodes, and has one or more slits extending in the first direction.

公开(公告)号：US10061420B2

公开(公告)日：2018-08-28

申请号：US15631732

申请日：2017-06-23

Applicant: Japan Display Inc.

Inventor： Kohei Azumi ,  Hiroshi Mizuhashi ,  Hayato Kurasawa

IPC: G06F3/0488 ,  G06F3/041 ,  G09G3/36 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/3655

Abstract: A first substrate includes a gate line extending in a first direction, a source line extending in a second direction intersecting the first direction, a switching element which is connected to the gate line and the source line, and a pixel electrode which is connected to the switching element. The first substrate includes a common electrode which is opposed to the pixel electrode, and a detection electrode element necessary for sensing a state of closeness of a conductor brought externally, that extends parallel to the common electrode and is formed of a metallic material. By this structure, power consumption of a drive electrode of an input sensor can be reduced, and improvement of a drive frequency can be obtained.

公开(公告)号：US09823776B2

公开(公告)日：2017-11-21

申请号：US15398179

申请日：2017-01-04

Applicant: Japan Display Inc.

Inventor： Yoshitoshi Kida ,  Jouji Yamada ,  Hirofumi Nakagawa ,  Michio Yamamoto ,  Kohei Azumi ,  Makoto Hayashi ,  Hiroshi Mizuhashi ,  Kozo Ikeno

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04101 ,  G09G5/003

Abstract: According to one embodiment, an electronic apparatus, includes a sensor-equipped display device includes a display device and a sensor configured to detect a contact or proximate position, a display driver configured to output an image display signal to the display device and to output a drive signal to the sensor, a detecting circuit configured to generate, based on the information from the sensor, raw data (Raw data) including three-dimensional information of coordinates of a position on the display device and a physical quantity at the coordinates, and an application processor configured to discriminate whether a part of the region in the display area should be further sensed or not, based on the raw data, and if the part of the region is further sensed, to output the range of the display device to be further sensed and the timing of driving the sensor to the display driver.

公开(公告)号：US09727163B2

公开(公告)日：2017-08-08

申请号：US14598514

申请日：2015-01-16

Applicant: Japan Display Inc.

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

IPC: G06F3/044 ,  G06F3/041

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.