公开(公告)号：US11635663B2

公开(公告)日：2023-04-25

申请号：US17390328

申请日：2021-07-30

Applicant: Japan Display Inc.

Inventor： Yoshitaka Ozeki

IPC: G02F1/1368 ,  G02F1/1362 ,  G02F1/167 ,  H01L29/417 ,  H01L29/423

Abstract: According to one embodiment, a display device includes a display panel and a drive circuit. A transistor provided in a pixel portion or a peripheral portion of the display panel includes a semiconductor layer having a first end and a second end, first and second gate electrodes overlapping the semiconductor layer, a source electrode connected to the first end, and a drain electrode connected to the second end. The first and second gate electrodes are disposed in a first layer. The source electrode and the drain electrode are disposed in a second layer. The source electrode is formed to cover at least a first channel region in planar view. The drain electrode is formed to cover at least a second channel region in planar view.

公开(公告)号：US11635662B2

公开(公告)日：2023-04-25

申请号：US17409065

申请日：2021-08-23

Applicant: Japan Display Inc.

Inventor： Kenta Seki ,  Seiji Uejima ,  Ryo Yamaoka ,  Hidemasa Yamaguchi

IPC: G02F1/1335 ,  G02F1/1362 ,  G02F1/1339 ,  G02F1/1333 ,  H01J9/20 ,  G02F1/1343 ,  G02F1/1368

Abstract: A display device includes a display section in which a plurality of pixels are arrayed in a matrix, a plurality of scan lines which select pixels, a plurality of signal lines which supply image signals to the selected pixels, and color filters that are arranged so as to correspond to color displays of the pixels. In the device, the display section includes an effective pixel portion and a frame portion that surrounds the effective pixel portion, and the frame portion and a wiring circuit of the effective pixel portion are covered with light-shielding layers, the light-shielding layers being separated from each other at a certain separation location in the display section, and a plurality of color filters having different colors are arranged by being stacked at the separation location.

公开(公告)号：US20230124285A1

公开(公告)日：2023-04-20

申请号：US18086802

申请日：2022-12-22

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Koji Ishizaki ,  Hayato Kurasawa

IPC: G06F3/044 ,  G06F3/041

Abstract: According to one embodiment, an electrostatic capacitance-type sensor-equipped display device includes a display panel with a display surface which displays an image. The sensor includes a plurality of detection electrodes disposed in a matrix, the detection electrodes being mutually electrically independently provided above the display surface and being configured to detect a variation in electrostatic capacitance, and a plurality of lead lines provided above the display surface, connected to the detection electrodes in a one-to-one correspondence, and formed of a metal.

公开(公告)号：US20230123073A1

公开(公告)日：2023-04-20

申请号：US18068310

申请日：2022-12-19

Applicant: Japan Display Inc.

Inventor： Yoshitaka OZEKI ,  Nobutaka OZAKI ,  Koshiro MORIGUCHI

IPC: G02F1/1368 ,  H01L27/12 ,  G02F1/1362 ,  G02F1/136

Abstract: A display device includes a first transistor provided with an oxide semiconductor layer, a first gate wiring facing the oxide semiconductor layer and a first gate insulating layer between the oxide semiconductor layer and the first gate wiring, a first transparent conductive layer provided on at least a first insulating layer on the first transistor, the first transparent conductive layer having an area overlapping the gate wiring and being in contact with the oxide semiconductor layer in a first contact area not overlapping the gate wiring, a second transparent conductive layer provided above at least a second insulating layer on the first transparent conductive layer and being in contact with the first transparent conductive layer at a second contact area overlapping the gate wiring, and a third transparent conductive layer provided between the second transparent conductive layer and the second insulating layer.

公开(公告)号：US20230122427A1

公开(公告)日：2023-04-20

申请号：US18084552

申请日：2022-12-20

Applicant: Japan Display Inc.

Inventor： Shunichi KIMURA ,  Toshiharu MATSUSHIMA

IPC: G02F1/01 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1337 ,  G02F1/137

Abstract: According to one embodiment, a polarization conversion element includes a first substrate including a first plane electrode and a first control electrode, a second substrate, and a liquid crystal layer. The first control electrode comprises a first strip electrode, a second strip electrode, a third strip electrode, and a first common electrode. The first strip electrode and the first common electrode are orthogonal to each other, respective extension directions of the first to third strip electrodes are different from each other, and an angle formed by the first strip electrode and the third strip electrode is greater than an angle formed by the first strip electrode and the second strip electrode.

公开(公告)号：US11630544B2

公开(公告)日：2023-04-18

申请号：US17339203

申请日：2021-06-04

Applicant: Japan Display Inc.

Inventor： Takayuki Nakanishi ,  Koji Noguchi ,  Koji Ishizaki ,  Yasuyuki Teranishi ,  Takeya Takeuchi

IPC: G06F3/044 ,  G06F3/047 ,  G06F3/041 ,  G09G3/36 ,  G09G3/298 ,  G06F3/0354 ,  H01J11/12 ,  G02F1/1343

Abstract: A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise. The touch panel includes: a plurality of detection scan electrodes extending in a first direction and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. A ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and a first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and a second detection electrode. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes.

公开(公告)号：US11630361B2

公开(公告)日：2023-04-18

申请号：US17471881

申请日：2021-09-10

Applicant: Japan Display Inc.

Inventor： Akihiro Hanada ,  Toshihide Jinnai ,  Isao Suzumura ,  Hajime Watakabe ,  Ryo Onodera

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

Abstract: A display device including: a substrate; a first thin film transistor of polysilicon semiconductor, a second thin film transistor of oxide semiconductor; a first light shading film opposing to the polysilicon semiconductor, and a second light shading film opposing to the oxide semiconductor; a first insulating film, a second insulating film which is constituted from plural insulating films, and a third insulating film superposed in this order; a first through hole penetrating the second insulating film and not penetrating the first insulating film and the third insulating film; a second through hole penetrating the first insulating film and the third insulating film; the first light shading film connects with a first conductive component, a part of the first conductive component exists on the third insulating film, through the second through hole.

公开(公告)号：US11630358B2

公开(公告)日：2023-04-18

申请号：US17804871

申请日：2022-06-01

Applicant: Japan Display Inc.

Inventor： Kazuki Ichihara ,  Naoyuki Asano

IPC: G02F1/1362

Abstract: According to one embodiment, a display device includes a first substrate having a first surface, a second surface, and a first side surface, a second substrate having a second side surface and being opposed to the first surface, a light source provided along the second side surface, a wiring substrate opposed to the second surface, a first adhesive layer bonding the second surface to the wiring substrate, and a flexible wiring substrate electrically connecting the first substrate with the wiring substrate. The first substrate includes an extending portion that includes the first side surface and extends further than the second side surface, the flexible wiring substrate is mount on the extending portion.

公开(公告)号：US11630338B2

公开(公告)日：2023-04-18

申请号：US17335450

申请日：2021-06-01

Applicant: Japan Display Inc.

Inventor： Takayuki Imai ,  Takeo Koito

IPC: G02F1/1334 ,  G09G3/36

Abstract: According to one embodiment, a display device includes a display panel, a third transparent substrate, a light-emitting element, and a modulation element. The display panel includes a first transparent substrate, a second transparent substrate, a first liquid crystal layer of a polymer dispersed type held. The third transparent substrate has a first end portion. The light-emitting element is opposed to the first end portion. The modulation element includes a fourth transparent substrate and a fifth transparent substrate disposed between the light-emitting element and the first end portion, a second liquid crystal layer, and control electrodes for applying voltage to the second liquid crystal layer.

公开(公告)号：US11626520B2

公开(公告)日：2023-04-11

申请号：US16779680

申请日：2020-02-03

Applicant: Japan Display Inc.

Inventor： Masataka Ikeda ,  Hirotaka Hayashi ,  Hitoshi Tanaka

IPC: H01L29/786 ,  H01L27/12 ,  G02F1/16766 ,  H01L49/02 ,  G02F1/167

Abstract: According to one embodiment, a semiconductor substrate includes a first basement, a gate line, a source line, an insulating film, a first pixel electrode, and a first transistor and a second transistor connected parallel at positions between the source line and the first pixel electrode. Each of a first semiconductor layer of the first transistor and a second semiconductor layer of the second transistor includes a first region, a second region, and a channel region. The first semiconductor layer and the second semiconductor layer are in contact with a first surface that is a surface of the insulating film on the source line side. The channel region of each of the first semiconductor layer and the second semiconductor layer wholly overlaps the gate line.