公开(公告)号：US20230296938A1

公开(公告)日：2023-09-21

申请号：US18200098

申请日：2023-05-22

Applicant: Japan Display Inc.

Inventor： Takashi OTA

IPC: G02F1/13357 ,  G02F1/1335

CPC classification number: G02F1/133603 ,  G02F1/133614 ,  G02F1/133607

Abstract: According to one embodiment, an illumination device comprises a plurality of light emitting elements that are disposed on a main surface of a wiring board, a light diffusion distance maintaining layer, a wavelength conversion layer, and a prism sheet, wherein the main surface of the wiring board is divided into a plurality of segment regions, n (n>1) light emitting elements are provided in each of the segment regions, the light emitting elements are independently driven in units of the segment regions, and a thickness of the light diffusion distance maintaining layer is ½ times or more a pitch of the segment regions adjacent to each other.

公开(公告)号：US11765931B2

公开(公告)日：2023-09-19

申请号：US17472860

申请日：2021-09-13

Applicant: Japan Display Inc.

Inventor： Hiroki Ohara

IPC: H01L33/00 ,  H10K50/844 ,  H10K50/11 ,  H10K50/81 ,  H10K50/82

CPC classification number: H10K50/8445 ,  H10K50/11 ,  H10K50/81 ,  H10K50/82

Abstract: A display device includes a first substrate, a display region with pixels each including a light emitting element above the first substrate, a first inorganic insulating layer covering the display region, a first organic insulating layer on the first inorganic insulating layer, a second inorganic insulating layer on the first organic insulating layer, a second organic insulating layer on the second inorganic insulating layer, a third organic insulating layer a on the second organic insulating layer, acidity of the third organic insulating layer being stronger than acidity of the second organic insulating layer, and a polarizing plate arranged on the third organic insulating layer.

公开(公告)号：US11765925B2

公开(公告)日：2023-09-19

申请号：US18075537

申请日：2022-12-06

Applicant: Japan Display Inc.

Inventor： Masumi Nishimura ,  Shinichiro Oka

IPC: G02F1/1339 ,  G02F1/1333 ,  H10K50/844 ,  H10K50/842 ,  H10K50/86 ,  H10K59/12 ,  H10K77/10 ,  H10K102/00

CPC classification number: H10K50/8426 ,  G02F1/1339 ,  G02F1/133305 ,  H10K50/844 ,  G02F2201/50 ,  H10K50/86 ,  H10K59/12 ,  H10K77/111 ,  H10K2102/311

Abstract: A display device includes a flexible substrate including a first region including a display region, a second region including a curved region, and a third region including a terminal region; an electro-optical element located in the display region; and a resin layer continuously extending from the first region to the third region.

公开(公告)号：US11762246B2

公开(公告)日：2023-09-19

申请号：US17751687

申请日：2022-05-24

Applicant: Japan Display Inc.

Inventor： Shunichi Kimura ,  Toshiharu Matsushima

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

CPC classification number: G02F1/134363 ,  G02F1/1337 ,  G02F1/13706 ,  G02F1/13712 ,  G02F1/134318

Abstract: According to one embodiment, a display device comprises first and second substrates. The first substrate comprise first and second common electrodes, and a first pixel electrode including a pair of first sides arranged in a first direction. The second common electrode includes first and second trunk portions, and a first branch portion extending from the second trunk portion toward the first trunk portion. The first pixel electrode is located between the trunk portions. The first branch portion overlaps with the first pixel electrode between the first sides. A width of the first pixel electrode between the first sides becomes smaller toward the second trunk portion.

公开(公告)号：US20230292555A1

公开(公告)日：2023-09-14

申请号：US18168584

申请日：2023-02-14

Applicant: Japan Display Inc.

Inventor： Masaru TAKAYAMA

IPC: H10K59/122 ,  H10K59/80 ,  H10K59/12

CPC classification number: H10K59/122 ,  H10K59/80521 ,  H10K59/873 ,  H10K59/1201

Abstract: According to one embodiment, a display device includes a substrate, a lower electrode, a rib, a partition including a lower portion and an upper portion, an organic layer provided on the lower electrode and including a light emitting layer, and an upper electrode provided on the organic layer and in contact with the lower portion of the partition. The organic layer includes a first end portion located on the rib, and a second end portion located on the rib on an opposite side of the first end portion. A thickness of the upper electrode immediately above the second end portion is greater than a thickness of the upper electrode immediately above the first end portion.

公开(公告)号：US11756496B2

公开(公告)日：2023-09-12

申请号：US17942269

申请日：2022-09-12

Applicant: Japan Display Inc.

Inventor： Kohei Kinoshita ,  Chihiro Tanaka

IPC: G09G3/36 ,  G06F3/041 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G09G3/3648 ,  G02F1/1368 ,  G02F1/136286 ,  G09G3/3674 ,  G09G3/3685 ,  G09G2300/0426

Abstract: A display device includes: pixel electrodes including a first pixel electrode and a second pixel electrode adjacent to the first pixel electrode in a first direction; switching elements including a first switching element coupled to the first pixel electrode and a second switching element coupled to the second pixel electrode; gate lines including a first gate line coupled to the first switching element and a second gate line coupled to the second switching element; a gate driver supplying a gate signal to the gate lines; and drive electrodes including a first drive electrode and a second drive electrode adjacent to the first drive electrode in the first direction. The first drive electrode overlaps the first and second pixel electrodes, and the second gate line. The second drive electrode overlaps the first gate line. The gate driver supplies the gate signal to the first and second gate lines simultaneously.

公开(公告)号：US11754897B2

公开(公告)日：2023-09-12

申请号：US17841971

申请日：2022-06-16

Applicant: Japan Display Inc.

Inventor： Gen Koide

IPC: G02F1/1362 ,  G02F1/1368 ,  G02F1/1335 ,  G02F1/1343 ,  H01L29/786 ,  G02F1/136

CPC classification number: G02F1/136286 ,  G02F1/1368 ,  G02F1/133514 ,  G02F1/134336 ,  G02F1/13606 ,  G02F2201/40 ,  H01L29/78645 ,  H01L29/78696

Abstract: A liquid crystal display is provided and includes first and second substrates and liquid crystal layer therebetween; pixel electrode on first substrate; pedestal metal coupled to pixel electrode; semiconductor layer substantially U-shaped and coupled to pedestal metal at first coupling portion; scan line that extends in first direction and in layer different from semiconductor layer; signal line that extends in second direction different from first direction so as to three-dimensionally cross scan line, signal line being coupled to semiconductor layer at second coupling portion; and extending portion that is part of scan line and that protrudes from scan line, the extending portion extending along signal line, wherein: in first direction along a shorter side of each pixel unit, extending portion is adjacent to pedestal metal; and in second direction along a longer side of each pixel unit, length of extending portion is smaller than length of pedestal metal.

公开(公告)号：US20230280610A1

公开(公告)日：2023-09-07

申请号：US18315566

申请日：2023-05-11

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Daisuke Takama ,  Yoshitoshi Kida

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

CPC classification number: G02F1/13338 ,  G02F1/134363 ,  G06F3/0443 ,  G06F3/0445 ,  G06F3/0446 ,  G06F3/044 ,  G06F3/0412 ,  G02F2201/12 ,  G09G3/3648

Abstract: A common electrode for a display, which is originally provided in a liquid crystal display element, is also used as one (drive electrode) of a pair of electrodes for a touch sensor, and the other (detection-electrode-for-the-sensor) of the pair of electrodes is newly formed. An existing common drive signal as a drive signal for display is used in common for a drive signal for the touch sensor. A capacitance is formed between the common electrode and the detection-electrode-for-the-sensor, and touch detection is performed by utilizing a change of this capacitance caused by a finger touch of a user. Thus, a display device with a touch sensor is also applicable to a mobile device in which electric potential of the user is inconstant in many cases. The newly-provided electrode is only the detection-electrode-for-the-sensor, and it is unnecessary to newly prepare a drive signal for the touch sensor.

公开(公告)号：US20230280520A1

公开(公告)日：2023-09-07

申请号：US18314149

申请日：2023-05-09

Applicant: Japan Display Inc.

Inventor： Ken ONODA ,  Shinichi KOMURA ,  Koichi OKUDA ,  Hiroaki KIJIMA

IPC: F21V8/00

CPC classification number: G02B6/0038 ,  G02B6/0076 ,  G02B6/0068

Abstract: According to one embodiment, a display device includes a display panel, a first light guide, and a second light guide. In the first light guide, a first main surface includes a first plane and first grooves between the first plane and a first side surface, a second main surface includes second grooves orthogonal to the first grooves, and a second plane between the second grooves and the first side surface. In the second light guide, a third main surface includes a third plane and third grooves located between the third plane and a fourth side surface, a fourth main surface includes fourth grooves orthogonal to the third grooves, and a fourth plane located between the fourth grooves and the fourth side surface.

公开(公告)号：US20230280013A1

公开(公告)日：2023-09-07

申请号：US18116878

申请日：2023-03-03

Applicant: Japan Display Inc.

Inventor： Masafumi OKADA ,  Nobuyuki SUZUKI ,  Makoto HASEGAWA

IPC: F21V5/00 ,  F21V7/06 ,  F21V9/08 ,  G02F1/29

CPC classification number: F21V5/008 ,  F21V7/06 ,  F21V9/08 ,  G02F1/29

Abstract: The purpose is to realize a lighting device of thin, small light distribution angle, and less leak light. Further, the purpose is to realize a lighting device which can control light beam accurately with liquid crystal lenses. The structure of the invention is as follows. A lighting device including: a reflector cylinder including a mirror thereinside; and a liquid crystal lens assembly that is disposed at a light emitting surface of the reflector cylinder and includes a plurality of liquid crystal lenses being stacked, in which the liquid crystal lens assembly includes a light shading film which defines a light emitting area of the liquid crystal lens assembly and which is formed in parallel with the light emitting surface of the reflector cylinder.