公开(公告)号：US20210011349A1

公开(公告)日：2021-01-14

申请号：US17037837

申请日：2020-09-30

Applicant: Japan Display Inc.

Inventor： Gen Koide ,  Hiroyuki Abe ,  Kazune Matsumura

IPC: G02F1/1362 ,  H01L27/12 ,  G02F1/1345

Abstract: According to an aspect, a display device includes: a substrate; a display region; a peripheral region; signal lines; terminals; wires coupling the terminals and the signal lines in the peripheral region; and first and second metal layers in different layers perpendicularly to the substrate and an insulating film in the peripheral region. The peripheral region includes: a first wiring region, in which the wires are electrically coupled to the signal lines; a second wiring region between the first wiring region and the terminals, and in which at least one or more wires pass through the first and second metal layers; and a third wiring region between the first and second wiring regions, and in which the wires extend in a second direction intersecting the first direction. The third wiring region includes contacts coupling the first and second metal layers, and a virtual line connecting the contacts has a curved shape.

公开(公告)号：US20190294285A1

公开(公告)日：2019-09-26

申请号：US16437036

申请日：2019-06-11

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Masahiro Maki ,  Takayuki Suzuki

IPC: G06F3/041 ,  G02F1/1362 ,  G06F3/044 ,  G02F1/1345 ,  G02F1/1333 ,  G02F1/1343

Abstract: The presence or absence of touch is detected according to a difference of a capacitance caused by the presence or absence of a material that blocks the electric field formed between the detection electrode and the common electrode. The common electrode includes a plurality of divided electrode portions that is extended in a lateral direction and aligned with each other in a longitudinal direction. Each of the plurality of common lines is electrically connected to at least one of the divided electrode portions. The plurality of common lines is arranged in an area next to the common electrode in the lateral direction of the common electrode, arranged next to each other in a width direction orthogonal to a length thereof, is different in width from each other, and the width of the common lines is wider as the length is longer.

公开(公告)号：US10395617B2

公开(公告)日：2019-08-27

申请号：US16225094

申请日：2018-12-19

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Masahiro Maki ,  Hideo Sato ,  Hiroaki Komatsu

IPC: G09G3/36 ,  G09G3/00

Abstract: A gate signal line driving circuit includes plural basic circuits, each outputting to a gate signal line a gate signal which is high during a high signal period and low during a low signal period. Each of the basic circuits includes: agate line high voltage application circuit which is turned on in accordance with the high signal period to apply the high voltage to the gate signal line; a gate line low voltage application circuit which is turned on in accordance with the low signal period to apply the low voltage to the gate signal line; and a second gate line low voltage application circuit which is turned on to apply the low voltage to the gate signal line in at least a part of a period between turning off the gate line high voltage application circuit and turning on the gate line low voltage application circuit.

公开(公告)号：US10359875B2

公开(公告)日：2019-07-23

申请号：US15896502

申请日：2018-02-14

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Masahiro Maki ,  Takayuki Suzuki

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1345 ,  G06F3/044 ,  G02F1/1343 ,  G02F1/1362

Abstract: The presence or absence of touch is detected according to a difference of a capacitance caused by the presence or absence of a material that blocks the electric field formed between the detection electrode and the common electrode. The common electrode includes a plurality of divided electrode portions that is extended in a lateral direction and aligned with each other in a longitudinal direction. Each of the plurality of common lines is electrically connected to at least one of the divided electrode portions. The plurality of common lines is arranged in an area next to the common electrode in the lateral direction of the common electrode, arranged next to each other in a width direction orthogonal to a length thereof, is different in width from each other, and the width of the common lines is wider as the length is longer.

公开(公告)号：US10248238B2

公开(公告)日：2019-04-02

申请号：US15420738

申请日：2017-01-31

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Takayuki Suzuki

IPC: G06F3/041

Abstract: To enable size reduction of a display device having a touch sensor function in which a display area has a non-rectangular shape. In a display area, video lines and common electrodes extend in the first direction, and scan lines extend in the second direction. A video signal transmission circuit and a common driver are arranged along a first edge of the display area, with which the one ends of the video lines are aligned. A scan line driver is arranged along a second edge of the display area, with which the ends of the scan lines and the common electrodes are aligned. The display area has a shape including an overlapping part between the first edge and the second edge. In a frame area adjacent to the overlapping part, the scan line driver is arranged more outward than the video signal transmission circuit and switch circuits.

公开(公告)号：US20190066618A1

公开(公告)日：2019-02-28

申请号：US16172003

申请日：2018-10-26

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Masahiro Maki ,  Hiroaki Komatsu

IPC: G09G3/36

Abstract: A driving circuit of a display device includes first to third output signal lines which are continuously arranged, a first transistor that has a source connected to the second output signal line and a drain connected to a first clock signal line, and a second transistor that provides a non-active potential to a gate of the first transistor when a second clock signal becomes the active potential, wherein a circuit that outputs the active potential to the first output signal line and the third output signal line is disposed at an opposite side to a circuit that outputs the active potential to the second output signal line with a display region interposed therebetween, and wherein the gate of the first transistor is connected to the first output signal line and the third output signal line via rectifying circuits.

公开(公告)号：US10192895B2

公开(公告)日：2019-01-29

申请号：US15805516

申请日：2017-11-07

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Takayuki Suzuki

IPC: H01L27/12 ,  G02F1/1362 ,  H01L29/786 ,  G02F1/1368

Abstract: Even when a light shielding film is provided between a transistor and a substrate, a threshold voltage of the transistor can be prevented or suppressed from being shifted. A display device includes light shielding films provided between a substrate and a semiconductor layer of a transistor including a gate electrode and the semiconductor layer. The semiconductor layer includes a source region and a drain region. Both of the light shielding films overlap the semiconductor layer when seen in a plan view, and are spaced apart from each other in a direction.

公开(公告)号：US20180173354A1

公开(公告)日：2018-06-21

申请号：US15897479

申请日：2018-02-15

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Takayuki Suzuki

IPC: G06F3/041 ,  G06F3/044

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

Abstract: A display device comprises counter electrodes configured to be used as common electrodes for displaying and scan electrodes for touch sensing, a first scan circuit which scans gate lines, and a second scan circuit which scans the counter electrodes. In the display device, one frame period includes a write period for continuously scanning one screen and a touch sensing period existing between the write period and a write period in the next frame. The second scan circuit includes a shift register unit and a switch unit. The switch unit includes a seventh thin-film transistor which outputs a DC drive signal to an output node and an eighth thin-film transistor which outputs an AC drive signal to the output node. A second control signal for fixing the voltage of a third retention node to which the gate electrode of the seventh thin-film transistor is connected is inputted in the write period.

公开(公告)号：US09881578B2

公开(公告)日：2018-01-30

申请号：US15657284

申请日：2017-07-24

Applicant: Japan Display Inc.

Inventor： Takayuki Suzuki ,  Hiroyuki Abe

IPC: G06F3/043 ,  G09G3/36 ,  G06F3/047 ,  G06F3/045 ,  G06F3/044 ,  G06F3/041

CPC classification number: G09G3/3677 ,  G06F3/0412 ,  G06F3/044 ,  G06F3/045 ,  G06F3/047 ,  G06F2203/04101 ,  G06F2203/04111 ,  G06F2203/04112 ,  G09G3/3655 ,  G09G3/3696

Abstract: A display device includes a plurality of gate lines extended in a first direction, a plurality of common electrodes extended in the first direction, a gate scanning circuit that scans the plurality of the gate lines, and a common scanning circuit that scans the plurality of the common electrodes. The common scanning circuit includes a shift register unit, an interconnection connecting unit, and a switch unit. The gate scanning circuit and the common scanning circuit are configured of single channel thin film transistors. The gate scanning circuit is disposed between the shift register unit and the interconnection connecting unit, and the interconnection connecting unit is disposed between the gate scanning circuit and the switch unit in a planar view.

公开(公告)号：US09853063B2

公开(公告)日：2017-12-26

申请号：US15189211

申请日：2016-06-22

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Takayuki Suzuki

IPC: H01L27/12 ,  G02F1/1362

CPC classification number: H01L27/124 ,  G02F1/136209 ,  G02F1/1368 ,  H01L29/78621 ,  H01L29/78627 ,  H01L29/78633 ,  H01L29/78645 ,  H01L29/78648 ,  H01L29/78663 ,  H01L29/78672

Abstract: Even when a light shielding film is provided between a transistor and a substrate, a threshold voltage of the transistor can be prevented or suppressed from being shifted. A display device includes light shielding films provided between a substrate and a semiconductor layer of a transistor including a gate electrode and the semiconductor layer. The semiconductor layer includes a source region and a drain region. Both of the light shielding films overlap the semiconductor layer when seen in a plan view, and are spaced apart from each other in a direction.