公开(公告)号：US12136380B2

公开(公告)日：2024-11-05

申请号：US17236004

申请日：2021-04-21

Applicant: Japan Display Inc.

Inventor： Yasuhiro Ogawa ,  Tetsuo Morita

IPC: G09G3/32 ,  H01L25/075 ,  H01L33/32 ,  H01L33/62

Abstract: According to one embodiment, a display device includes first wiring layers, a second wiring layer, a first insulating layer, first mounting electrodes, a second mounting electrode, a first light emitting element and a second light emitting element. The second mounting electrode is arranged to surround a first mounting electrode and an other first mounting electrode. The first light emitting element is mounted across the first mounting electrode and the second mounting electrode. The second light emitting element is mounted across the other first mounting electrode and the second mounting electrode. The second mounting electrode is electrically connected to the second wiring layer through a second opening of the first insulating layer, in a non-display area.

公开(公告)号：US11532649B2

公开(公告)日：2022-12-20

申请号：US16952455

申请日：2020-11-19

Applicant: Japan Display Inc.

Inventor： Tetsuo Morita ,  Hiroyuki Kimura ,  Makoto Shibusawa ,  Hiroshi Tabatake ,  Yasuhiro Ogawa

IPC: H01L29/10 ,  H01L27/12 ,  H01L27/13 ,  H01L29/786 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/32

Abstract: Provided is a display device including: a capacitor having a first electrode, a first insulating film over the first electrode, and a second electrode over the first insulating film; and a first transistor over the capacitor. The first transistor includes the second electrode a second insulating film over the second electrode, an oxide semiconductor film over the second insulating film, and a first source electrode and a first drain electrode over the oxide semiconductor film. The first source electrode and the first drain electrode are electrically connected to the oxide semiconductor film.

公开(公告)号：US11195453B2

公开(公告)日：2021-12-07

申请号：US17113175

申请日：2020-12-07

Applicant: Japan Display Inc.

Inventor： Tetsuo Morita ,  Yasuhiro Ogawa

IPC: G06F1/00 ,  G09G3/32 ,  G09G3/20 ,  H01L25/075

Abstract: According to one embodiment, a display device includes a display region where pixels are arranged. Each of the pixels includes a pixel electrode, a light emitting element, a drive transistor, a first capacitance electrode layer opposed to the pixel electrode and held at a constant potential, and an insulating layer forming an auxiliary capacitance together with the pixel electrode and the first capacitance electrode layer. A value of the auxiliary capacitance of the first pixel, of the values of the auxiliary capacitance of the pixels is the largest.

公开(公告)号：US10283045B2

公开(公告)日：2019-05-07

申请号：US15367426

申请日：2016-12-02

Applicant: Japan Display Inc.

Inventor： Makoto Shibusawa ,  Hiroyuki Kimura ,  Tetsuo Morita

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266

Abstract: A display device including a light emitting element, a drive transistor connected to the light emitting element, a first switching element connected to the drive transistor and a main power supply line, a second switching element connected to the drive transistor and a reset power supply line, a third switching element connected to the drive transistor and a signal line, a fourth switching element connected to the third switching element and an initialization power supply line, and a capacitor element connected to the drive transistor and the third switching element, wherein two horizontal periods ON signal is supplied to a gate terminal of each of the second switching element, third switching element and fourth switching element respectively.

公开(公告)号：US09685458B2

公开(公告)日：2017-06-20

申请号：US14882093

申请日：2015-10-13

Applicant: Japan Display Inc.

Inventor： Hiroshi Tabatake ,  Hiroyuki Kimura ,  Makoto Shibusawa ,  Hiroshi Nakayama ,  Tetsuo Morita ,  Yutaka Umeda

IPC: H01L27/12 ,  H01L27/32

CPC classification number: H01L27/1214 ,  H01L27/124 ,  H01L27/326 ,  H01L27/3272

Abstract: A display device includes a display region comprising a plurality of pixels, each pixel of the plurality of pixels comprises a light emitting element which includes a pixel electrode, a conductive layer below the pixel electrode and configured to receive a specified electric voltage, and a thin film transistor below the pixel electrode and the conductive layer, wherein the thin film transistor comprises a semiconductor layer which includes a channel region, a gate electrode which is overlapping the channel region, a first electrode electrically connected to the semiconductor layer and the pixel electrode, and a second electrode electrically connectable to a power supply line, wherein the conductive layer includes an overlapped region which overlaps with the channel region, and the first electrode extends so as to cover the gate electrode at the overlapped region.

公开(公告)号：US12300158B2

公开(公告)日：2025-05-13

申请号：US18406360

申请日：2024-01-08

Applicant: Japan Display Inc.

Inventor： Tetsuo Morita ,  Yasuhiro Ogawa

IPC: G09G3/32 ,  G09G3/20 ,  H01L25/075

Abstract: According to one embodiment, a display device includes a display region where pixels are arranged. Each of the pixels includes a pixel electrode, a light emitting element, a drive transistor, a first capacitance electrode layer opposed to the pixel electrode and held at a constant potential, and an insulating layer forming an auxiliary capacitance together with the pixel electrode and the first capacitance electrode layer. A value of the auxiliary capacitance of the first pixel, of the values of the auxiliary capacitance of the pixels is the largest.

公开(公告)号：US11810491B2

公开(公告)日：2023-11-07

申请号：US17232552

申请日：2021-04-16

Applicant: Japan Display Inc.

Inventor： Tetsuo Morita ,  Hiroyuki Kimura

IPC: G09G3/20 ,  H10K59/131 ,  H10K59/121

CPC classification number: G09G3/20 ,  H10K59/1216 ,  H10K59/131 ,  G09G2300/0426 ,  G09G2320/0233

Abstract: Different groups include the same type of control lines. The first control lines are arranged such that control lines of different types belonging to each of group are adjacent to each other. In the second area, the second control lines are arranged such that control lines of different types belonging to each group are adjacent to each other. In the non-display area, the second control lines are arranged such that control lines of the same type belonging to different groups are adjacent to each other. The capacitor electrode includes portions connected to each other and arranged in the second direction. Each portion faces each other for control lines of the same type adjacent in the non-display area. Any of the portions and any of the other portions differ in width in the first direction.

公开(公告)号：US20210408165A1

公开(公告)日：2021-12-30

申请号：US17474228

申请日：2021-09-14

Applicant: Japan Display Inc.

Inventor： Hiroshi TABATAKE ,  Tetsuo Morita ,  Yasuhiro Ogawa

IPC: H01L27/32 ,  G09G3/3208

Abstract: A drive circuit includes a holding capacitor, an element capacitor, and an additional capacitor interposed between one of the source and the drain, and one of the high-potential line and the low-potential line. The drive circuit configured to drive the first light emitter includes a first element capacitor as the element capacitor and a first additional capacitor as the additional capacitor. The driving circuit configured to drive the second light emitter includes a second element capacitor as the element capacitor and a second additional capacitor as the additional capacitor. The first element capacitor is larger in capacitance than the second element capacitor. The first additional capacitor is smaller in capacitance than the second additional capacitor.

公开(公告)号：US20210241684A1

公开(公告)日：2021-08-05

申请号：US17236004

申请日：2021-04-21

Applicant: Japan Display Inc.

Inventor： Yasuhiro OGAWA ,  Tetsuo Morita

IPC: G09G3/32 ,  H01L25/075 ,  H01L33/62 ,  H01L33/32

Abstract: According to one embodiment, a display device includes first wiring layers, a second wiring layer, a first insulating layer, first mounting electrodes, a second mounting electrode, a first light emitting element and a second light emitting element. The second mounting electrode is arranged to surround a first mounting electrode and an other first mounting electrode. The first light emitting element is mounted across the first mounting electrode and the second mounting electrode. The second light emitting element is mounted across the other first mounting electrode and the second mounting electrode. The second mounting electrode is electrically connected to the second wiring layer through a second opening of the first insulating layer, in a non-display area.

公开(公告)号：US11004377B2

公开(公告)日：2021-05-11

申请号：US16846907

申请日：2020-04-13

Applicant: Japan Display Inc.

Inventor： Tetsuo Morita ,  Hiroyuki Kimura

IPC: G09G3/20 ,  H01L27/32

Abstract: A display device is disclosed including a display area having a non-rectangular shape, in which a first area and a second area are joined. The second area is smaller than the first area in a first direction, and the second area is adjacent to the first area in a second direction orthogonal to the first direction. A non-display area is adjacent to the second area in the first direction and adjacent to the first area in the second direction. A plurality of pixel circuits is arranged in the display area in the first direction and the second direction, avoiding the non-display area. A plurality of first control lines and second control lines are grouped into control line assemblies arranged such that control line assemblies of different types belonging to each of the plurality of groups are adjacent to each other, in order to simplify load adjustment.