公开(公告)号：US10235001B2

公开(公告)日：2019-03-19

申请号：US15806875

申请日：2017-11-08

Applicant: Japan Display Inc.

Inventor： Toshiaki Fukushima

IPC: G06F3/041 ,  G06F3/044

Abstract: According to an aspect, a display device with a touch detection function includes a controller, touch wiring that supplies a touch drive signal to drive electrodes, and a plurality of switch groups that are provided for each of the drive electrodes, each of the plurality of switch groups having selection switches. The plurality of switch groups select a drive electrode to be coupled to a touch wiring based on a selection signal from the controller. The selection switches for each of the plurality of switch groups are coupled in parallel with each other between a corresponding drive electrode and the touch wiring, and for each of the drive electrodes, all of the selection switches operate in accordance with the selection signal, couple the corresponding drive electrodes and the touch wiring, and apply the touch drive signal to the corresponding drive electrodes.

公开(公告)号：US20190034016A1

公开(公告)日：2019-01-31

申请号：US16149190

申请日：2018-10-02

Applicant: Japan Display Inc.

Inventor： Hiroshi MIZUHASHI ,  Tadayoshi Katsuta ,  Gen Koide ,  Toshiaki Fukushima

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

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G09G3/3648 ,  G09G3/3685 ,  G09G2300/023 ,  G09G2300/0426 ,  G09G2300/0876 ,  G09G2310/0297 ,  G09G2310/08

Abstract: According to one embodiment, a display device includes first and second substrate units, a display function layer, and a drive element. The first substrate unit includes a first substrate, a display unit, and a circuit unit. The first substrate has a first surface including a display region and a peripheral region. The display unit is provided in the display region, and includes first lines, second lines, switch elements, pixel electrodes, and third lines. The circuit unit is provided in the peripheral region, and is electrically connected to one of the second lines and one of the third lines. The second substrate unit includes a second substrate and fourth lines. The display function layer is provided between the first and second substrate units. The drive element is provided on the peripheral region. At least a portion of the circuit unit is disposed between the drive element and the first substrate.

公开(公告)号：US10146348B2

公开(公告)日：2018-12-04

申请号：US15626619

申请日：2017-06-19

Applicant: Japan Display Inc.

Inventor： Hiroshi Mizuhashi ,  Tadayoshi Katsuta ,  Gen Koide ,  Toshiaki Fukushima

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

Abstract: According to one embodiment, a display device includes first and second substrate units, a display function layer, and a drive element. The first substrate unit includes a first substrate, a display unit, and a circuit unit. The first substrate has a first surface including a display region and a peripheral region. The display unit is provided in the display region, and includes first lines, second lines, switch elements, pixel electrodes, and third lines. The circuit unit is provided in the peripheral region, and is electrically connected to one of the second lines and one of the third lines. The second substrate unit includes a second substrate and fourth lines. The display function layer is provided between the first and second substrate units. The drive element is provided on the peripheral region. At least a portion of the circuit unit is disposed between the drive element and the first substrate.

公开(公告)号：US10019961B2

公开(公告)日：2018-07-10

申请号：US14716240

申请日：2015-05-19

Applicant: Japan Display Inc.

Inventor： Masaaki Kabe ,  Hiroki Uchiyama ,  Toshiaki Fukushima ,  Gen Koide

IPC: G09G3/36 ,  G09G5/18 ,  G09G3/20

CPC classification number: G09G3/3696 ,  G09G3/20 ,  G09G3/2003 ,  G09G3/3614 ,  G09G5/18 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0465 ,  G09G2330/021 ,  G09G2340/0457

Abstract: A display device includes an image display panel and a control device. The image display panel includes first sub-pixels, second sub-pixels, third sub-pixels, and fourth sub-pixels in which a specified sub-pixel column including the third sub-pixels and the fourth sub-pixels and at least one other sub-pixel column arranged next to the specified sub-pixel column are periodically arranged. The control device performs column inversion driving to apply a voltage having the same polarity to signal lines of a first specified sub-pixel column belonging to the specified sub-pixel columns and the other sub-pixel column adjacent to the first specified sub-pixel column, apply a voltage having the same polarity as the first specified sub-pixel column to one of the signal lines of a second specified sub-pixel column and a third specified sub-pixel column adjacent to the first specified sub-pixel column, and invert the polarities of the voltages to be applied at predetermined cycles.

公开(公告)号：US09874771B2

公开(公告)日：2018-01-23

申请号：US14696667

申请日：2015-04-27

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Hiroshi Mizuhashi ,  Toshiaki Fukushima

IPC: G02F1/133 ,  G02F1/1343 ,  G02F1/1335 ,  G09G3/20 ,  G06F3/041 ,  G09G3/36

CPC classification number: G02F1/13306 ,  G02F1/133514 ,  G02F1/134336 ,  G06F3/0412 ,  G06F3/0416 ,  G09G3/2003 ,  G09G3/3607 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2310/0248 ,  G09G2320/04 ,  G09G2330/00

Abstract: According to one embodiment, a display device includes first, second, and third interconnects, switch elements, pixel electrodes, a display layer, and a controller. The switch elements are arranged in a matrix configuration, and connected to the first and second interconnects. The pixel electrodes are electrically connected to the switch elements. The third interconnects oppose the pixel electrodes. The display layer is provided on the pixel electrodes. The controller is electrically connected to the first, second, and third interconnects. The second interconnects include a first color interconnect. The controller performs a first operation of sequentially selecting the first interconnects and supplying a first color image signal to the first color interconnect. The controller performs a second operation of sequentially selecting the first interconnects and supplying a second color image signal to the first color interconnect. The controller performs a third operation being different from the first and second operations.

公开(公告)号：US09651841B2

公开(公告)日：2017-05-16

申请号：US15067611

申请日：2016-03-11

Applicant: Japan Display Inc.

Inventor： Gen Koide ,  Toshiaki Fukushima

IPC: G02F1/1343 ,  G02F1/1362

CPC classification number: G09G3/3607 ,  G02F1/134363 ,  G02F1/13624 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/136218 ,  G02F2201/121

Abstract: To reduce the area of a portion where a plurality of transistors are provided in a region around a display region and to reduce the area of the region around the display region, a display device includes a first transistor and a second transistor each as a transistor, and the transistor includes a connection wiring that electrically connects a semiconductor film and a source-drain electrode to each other via an opening portion provided in an insulating film. The first transistor and the second transistor are adjacent to each other, and there is a clearance between an end portion, on the side of the second transistor, of the connection wiring in the first transistor and an end portion, on the side of the second transistor, of the opening portion in the first transistor.

公开(公告)号：US10606385B2

公开(公告)日：2020-03-31

申请号：US15664603

申请日：2017-07-31

Applicant: Japan Display Inc.

Inventor： Toshiaki Fukushima ,  Koji Noguchi ,  Hiroshi Mizuhashi ,  Gen Koide ,  Tadayoshi Katsuta

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

Abstract: A display device provided with a touch sensor, includes a plurality of common electrodes, a plurality of display elements arranged in a matrix, a plurality of gate lines electrically connected to the display elements and arranged in a row direction, and a plurality of source lines electrically connected to the display elements and arranged in a column direction. The plurality of common electrodes for display are also used for the touch sensor. An image display operation of the plurality of common electrodes for display and a driving operation of the plurality of common electrodes for the touch sensor are performed in a time sharing manner, and all of the gate lines and the source lines are caused to be in a floating state in the driving operation of the common electrodes for the touch sensor.

公开(公告)号：US10529293B2

公开(公告)日：2020-01-07

申请号：US16269410

申请日：2019-02-06

Applicant: Japan Display Inc.

Inventor： Gen Koide ,  Toshiaki Fukushima

IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/1343 ,  G02F1/1368

Abstract: To reduce the area of a portion where a plurality of transistors are provided in a region around a display region and to reduce the area of the region around the display region, a display device includes a first transistor and a second transistor each as a transistor, and the transistor includes a connection wiring that electrically connects a semiconductor film and a source-drain electrode to each other via an opening portion provided in an insulating film. The first transistor and the second transistor are adjacent to each other, and there is a clearance between an end portion, on the side of the second transistor, of the connection wiring in the first transistor and an end portion, on the side of the second transistor, of the opening portion in the first transistor.

公开(公告)号：US10528196B2

公开(公告)日：2020-01-07

申请号：US15409867

申请日：2017-01-19

Applicant: Japan Display Inc.

Inventor： Gen Koide ,  Tadayoshi Katsuta ,  Toshiaki Fukushima ,  Naoyuki Obinata

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

Abstract: A display apparatus which can reduce a parasitic capacitance during driving of driving electrodes based on a self-capacitance detecting method is provided. The display apparatus includes: a plurality of connection wires which are formed in a peripheral area and are connected to a plurality of corresponding video signal lines; a video signal line selection circuit which is connected with a plurality of connection wires, selects at least one connection wire and supplies a signal to the video signal lines; self-capacitance detection wires which extend in a direction intersecting an extension direction of the connection wires and intersects the connection wires; common wires which electrically connect the self-capacitance detection wires and drive electrodes; and transistors which are provided between the self-capacitance detection wires and the common wires. Further, the self-capacitance detection wires extend between a display area and the video signal line selection circuit in a plan view.

公开(公告)号：US10338744B2

公开(公告)日：2019-07-02

申请号：US15683370

申请日：2017-08-22

Applicant: Japan Display Inc.

Inventor： Toshiaki Fukushima

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362

Abstract: According to an aspect, a display apparatus includes: a plurality of gate lines; a plurality of first switches arranged in respective pixels in a display region; a plurality of second switches arranged in a frame region surrounding the display region; a first wire coupled to the respective second switches and supplying a detection drive signal to the respective gate lines through the respective second switches in a detection operation period; a third switch arranged in the frame region and coupled to the first wire; and a second wire coupled to the third switch and supplied with an off-state voltage, wherein the first wire is arranged between the second switches and the display region and the off-state voltage of the first switches is supplied to the first wire in a display operation period different from the detection operation period.