公开(公告)号：US20230197765A1

公开(公告)日：2023-06-22

申请号：US18113161

申请日：2023-02-23

Applicant: Japan Display Inc.

Inventor： Akihiro OGAWA

IPC: H01L27/15

CPC classification number: H01L27/156

Abstract: According to one embodiment, a display device includes an organic planarization film, a second electrode, a light emitting element and a metal layer. The organic planarization film is arranged on a substrate and covers a pixel circuit. The second electrode is electrically connected to a first electrode of the pixel circuit, in an area overlapping with a first contact hole formed in the organic planarization film, in planar view. The light emitting element is electrically connected to the second electrode. The metal layer is arranged between the organic planarization film and the second electrode. The metal layer is arranged on an entire surface of the organic planarization film, except for the area overlapping with the first contact hole in planar view.

公开(公告)号：US20220293579A1

公开(公告)日：2022-09-15

申请号：US17830470

申请日：2022-06-02

Applicant: Japan Display Inc.

Inventor： Akihiro OGAWA ,  Masanobu IKEDA ,  Yasuhiro KANAYA ,  Yoshinori AOKI

IPC: H01L25/16 ,  H01L27/12 ,  H01L33/62

Abstract: A display device includes a substrate, a first light-emitting diode (LED) element and a second LED element provided to the substrate and configured to output light, a first signal line provided between the first LED element and the second LED element and electrically coupled to the first LED element, a second signal line provided between the first LED element and the second LED element and electrically coupled to the second LED element, gate wiring intersecting the first signal line and the second signal line, and anode wiring overlapping the gate wiring and electrically coupled to the first LED element and the second LED element. The anode wiring extends parallel to the gate wiring.

公开(公告)号：US20220005405A1

公开(公告)日：2022-01-06

申请号：US17366303

申请日：2021-07-02

Applicant: Japan Display Inc.

Inventor： Yoshinori AOKI ,  Akihiro OGAWA ,  Masanobu IKEDA

IPC: G09G3/32 ,  G09G3/20

Abstract: According to one embodiment a display device includes first and second sub-pixels, first and second power lines, and a reset line. The first sub-pixel includes a first light emitting element and a first pixel circuit. The second sub-pixel includes a second light emitting element and a second pixel circuit. The first power line supplies power to the first pixel circuit. The second power line supplies power to the second pixel circuit. Reset signal is supplied to the reset line. The reset line and the power lines are arranged in a display region. The reset line is connected to both the pixel circuits. A width of the first power line is larger than a width of the second power line.

公开(公告)号：US20190129270A1

公开(公告)日：2019-05-02

申请号：US16170135

申请日：2018-10-25

Applicant: Japan Display Inc.

Inventor： Koji ISHIZAKI ,  Yoshitaka OZEKI ,  Takahiro TAKEUCHI ,  Yasuhiro KANAYA ,  Hirotaka HAYASHI ,  Akihiro OGAWA

IPC: G02F1/167 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1339

Abstract: According to one embodiment, a display device includes a first basement, an organic insulating film above the first basement and including a first upper surface and a first end portion, an inorganic insulating film provided from the first upper surface to the first basement and covering the first upper surface and the first end portion, pixel electrodes provided in the display portion, a common electrode provided to be opposed to the pixel electrodes, an electrophoretic element provided between the pixel electrodes and the common electrode, and a sealant provided on the inorganic insulating film and sealing at least the electrophoretic element.

公开(公告)号：US20240194124A1

公开(公告)日：2024-06-13

申请号：US18442816

申请日：2024-02-15

Applicant: Japan Display Inc.

Inventor： Akihiro OGAWA

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2081 ,  G09G2310/08 ,  G09G2320/043

Abstract: A display device includes a plurality of light-emitting elements arrayed in a display region, a first pixel circuit and a second pixel circuit coupled to each of the light-emitting elements, a first drive transistor provided to the first pixel circuit and configured to supply a first drive current to the light-emitting element, a second drive transistor provided to the second pixel circuit and configured to supply a second drive current to the light-emitting element, a drive circuit configured to supply a video signal to the first drive transistor and the second drive transistor, a first coupling switching transistor provided between the first drive transistor and the light-emitting element, and a second coupling switching transistor provided between the second drive transistor and the light-emitting element. The first coupling switching transistor and the second coupling switching transistor are turned off in a non-emission period of the light-emitting element.

公开(公告)号：US20220406760A1

公开(公告)日：2022-12-22

申请号：US17895075

申请日：2022-08-25

Applicant: Japan Display Inc.

Inventor： Akihiro OGAWA

IPC: H01L25/075 ,  H01L33/62 ,  H01L33/42

Abstract: A display device includes a circuit substrate including a first pixel and a second pixel, a first LED chip overlapping a first anode pad and a first cathode pad in the first pixel, and a second LED chip overlapping a second anode pad and a second cathode pad in the second pixel. The first pixel includes a first light transmission region overlapping the first LED chip, and is between the first anode pad and the first cathode pad. The second pixel includes a second light transmission region overlapping the second LED chip, and is between the second anode pad and the second cathode pad. In a plan view of the circuit substrate, a first area (S1) of the first light transmission region and a second area (S2) of the second light transmission region have a first ratio that is represented by S1:S2=1:0.8 to 1.2.

公开(公告)号：US20220285332A1

公开(公告)日：2022-09-08

申请号：US17750489

申请日：2022-05-23

Applicant: Japan Display Inc.

Inventor： Yoshinori AOKI ,  Yasuhiro KANAYA ,  Masanobu IKEDA ,  Akihiro OGAWA

IPC: H01L25/16 ,  H01L33/62 ,  H01L33/36

Abstract: According to one embodiment, a display device includes pixels each including transistors, pixel electrodes, a contact electrode, and light emitting elements, and an insulating basement, a first organic insulating layer, a second organic insulating layer, a resin layer, a common electrode, and first wiring lines. The common electrode is electrically connected to cathodes of the light emitting elements, and electrically connected to the contact electrodes of the pixels. The first wiring lines, each provided between the first organic insulating layer and the second organic insulating layer or between the second organic insulating layer and the resin layer, are electrically connected to the contact electrodes of the pixels, and are formed of a metal.

公开(公告)号：US20220084991A1

公开(公告)日：2022-03-17

申请号：US17463558

申请日：2021-09-01

Applicant: Japan Display Inc.

Inventor： Masanobu IKEDA ,  Yoshinori AOKI ,  Akihiro OGAWA

IPC: H01L25/075 ,  H01L27/12 ,  H01L29/786 ,  H01L33/58 ,  H01L33/62 ,  H01L23/498

Abstract: A display device includes a first substrate; a first pixel part provided on the first substrate; a drive circuit provided on the first substrate; a second substrate; a second pixel part provided on the second substrate; and a connecting part electrically connecting the drive circuit to the second pixel part. The first pixel part has pixels each containing a first light-emitting element. The drive circuit is located adjacent to the first pixel part and connected to the first pixel part. The second pixel part has pixels each containing a second light-emitting element and overlaps the drive circuit in a plan view.

公开(公告)号：US20220059517A1

公开(公告)日：2022-02-24

申请号：US17396826

申请日：2021-08-09

Applicant: Japan Display Inc.

Inventor： Masanobu IKEDA ,  Yoshinori AOKI ,  Akihiro OGAWA

IPC: H01L25/16

Abstract: A display device includes a display portion mounted with a first LED and a second LED are mounted, a pixel circuit portion provided with a first pixel-circuit thin film transistor electrically connected to the first LED and a second pixel-circuit thin film transistor electrically connected to the second LED, a drive circuit portion provided with a drive-circuit thin film transistor, and a shielding layer provided between the display portion and the drive circuit portion. A fixed potential is applied to the shielding layer. The second LED overlaps the drive circuit portion with the shielding layer therebetween.

公开(公告)号：US20220059042A1

公开(公告)日：2022-02-24

申请号：US17519886

申请日：2021-11-05

Applicant: JAPAN DISPLAY INC.

Inventor： Akihiro OGAWA ,  Masanobu IKEDA ,  Susumu KIMURA

IPC: G09G3/34 ,  G02F1/1335 ,  G02F1/1343 ,  G09G3/36

Abstract: A display device includes a plurality of divided pixels, each of which comprising a reflective electrode, a counter electrode provided so as to face the reflective electrode, and a holding unit configured to hold a potential corresponding to an expression of a gradation, and an inorganic light emitter provided on a side of the counter electrode opposite to a side of the counter electrode facing the reflective electrode, and configured to emit light toward the divided pixel.