公开(公告)号：US10566578B2

公开(公告)日：2020-02-18

申请号：US15450316

申请日：2017-03-06

Applicant: Japan Display Inc.

Inventor： Shigeru Sakamoto ,  Hajime Akimoto

IPC: H01L51/52 ,  H01L27/32

Abstract: A display device includes a first substrate, a coloring layer formed on the first substrate, a transparent insulating layer having a first refractive index formed on the coloring layer, a first transparent electrode having a higher second refractive index than the first refractive index formed on the transparent insulating layer, an organic layer having a light emitting layer formed on the first transparent electrode, and a second transparent electrode formed on the organic layer.

公开(公告)号：US10564462B2

公开(公告)日：2020-02-18

申请号：US15638568

申请日：2017-06-30

Applicant: Japan Display Inc.

Inventor： Hsiang-Yuan Cheng ,  Hajime Akimoto

IPC: G06F3/041 ,  G02F1/1333 ,  G06F3/047 ,  G06F3/044

Abstract: Disclosed is a touch sensor including a first layer, a second layer over the first layer, and a third layer over the second layer. The first layer has a plurality of first insulators arranged in a stripe form and extending in a first direction, and a plurality of first wirings arranged in a stripe form and extending in a second direction intersecting with the first direction. The second layer includes an insulating material. The third layer has a plurality of second insulators arranged in a stripe form and extending in the second direction, and a plurality of second wirings arranged in a stripe form and extending in the first direction. The plurality of first insulators and the plurality of the first wirings are woven with each other, and the plurality of second insulators and the plurality of the second wirings are woven with each other.

公开(公告)号：US10388877B2

公开(公告)日：2019-08-20

申请号：US15406262

申请日：2017-01-13

Applicant: Japan Display Inc.

Inventor： Masaki Tanaka ,  Hajime Akimoto

IPC: H01L51/54 ,  H01L51/00 ,  C08F220/70 ,  H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  H01L51/56

Abstract: A flexible display device includes a hole transport layer, a light emitting layer, an electron transport layer arranged between a first electrode layer and a second electrode layer. The hole transport layer and the electron transport layer each contain a polyacrylamide comprising a guest part and/or a host part which interacts with the guest part. The host part may be selected from the group consisting of an α-cyclodextrinyl group, a β-cyclodextrinyl group, and a γ-cyclodextrinyl group, and the guest part may be selected from the group consisting of an n-butyl (ester) group, an n-hexyl (ester) group, an n-dodecyl (ester) group, an n-dodecyl (amide) group, an adamantyl group, a cyclohexyl (ester) group, and a cyclododecyl (amide) group, which can interact with the selected host part.

公开(公告)号：US10115777B2

公开(公告)日：2018-10-30

申请号：US15492093

申请日：2017-04-20

Applicant: Japan Display Inc.

Inventor： Masaki Tanaka ,  Hajime Akimoto

IPC: H04L27/00 ,  H01L27/32 ,  H01L51/52 ,  H01L27/28

Abstract: A display device includes a plurality of pixel electrodes including a first pixel electrode, a first electrode adjacent to the first pixel electrode and arranged separated from the first pixel electrode, a bank covering an edge part of the first pixel electrode, an end part of the first electrode, and a region between the first pixel electrode and the first electrode, a first organic layer arranged above the first pixel electrode, above the first electrode and above the bank, a second organic layer arranged above the first organic layer overlapping the first pixel electrode, a third organic layer arranged above the second organic layer, above the first organic layer overlapping the first electrode, and above the first organic layer overlapping the bank, an opposing electrode arranged above the third organic layer overlapping the first pixel electrode, and a second electrode arranged above the third organic layer overlapping the first electrode.

公开(公告)号：US20180204892A1

公开(公告)日：2018-07-19

申请号：US15848088

申请日：2017-12-20

Applicant: Japan Display Inc.

Inventor： Shigeru Sakamoto ,  Hajime Akimoto

IPC: H01L27/32 ,  H01L51/52

CPC classification number: H01L27/3246 ,  H01L27/3211 ,  H01L51/5203 ,  H01L51/5262 ,  H01L51/5271

Abstract: A display device includes a plurality of pixel electrodes; a bank having a plurality of openings respectively exposing a part of top surfaces of the plurality of pixel electrodes, a light emitting layer provided on the top surfaces of the plurality of pixel electrodes; and a common electrode covering the bank and the light emitting layer. Where an optical path of light emitted from any light emitting point in the light emitting layer and reflected by a corresponding pixel electrode, among the plurality of pixel electrodes, to return to the light emitting point is a first optical path, and an optical path of light emitted from the light emitting point and reflected by the corresponding pixel electrode to reach the bank is a second optical path, the second optical path has a length that is an integral multiple of a length of the first optical path.

公开(公告)号：US09972667B2

公开(公告)日：2018-05-15

申请号：US15701751

申请日：2017-09-12

Applicant: Japan Display Inc.

Inventor： Yasukazu Kimura ,  Takuma Nishinohara ,  Toshihiko Itoga ,  Hajime Akimoto

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/56

CPC classification number: H01L27/3246 ,  H01L51/0011 ,  H01L51/56 ,  H01L2227/323

Abstract: A display device includes a substrate having an insulating surface; a plurality of pixel electrodes on the insulating surface, the plurality of pixel electrodes located away from each other; a first insulating layer covering an end of each of the pixel electrodes and exposing a part of a top surface of each of the pixel electrodes; and an organic layer provided on each of the pixel electrodes, the organic layer including a light emitting layer. As seen in a plan view, the first insulating layer includes a plurality of first regions, each of the plurality of first regions being around the exposed part of the top surface of the pixel electrodes, and a second region located between two adjacent first regions, the second region including a recessed portion.

公开(公告)号：US09966546B2

公开(公告)日：2018-05-08

申请号：US15417391

申请日：2017-01-27

Applicant: Japan Display Inc.

Inventor： Yuya Shirahata ,  Hajime Akimoto

IPC: H01L51/00 ,  H01L27/32 ,  H01L51/52

CPC classification number: H01L51/0097 ,  H01L27/3276 ,  H01L51/5237 ,  H01L2251/5338 ,  H01L2251/558 ,  Y02E10/549

Abstract: Provided is a display device having a first region and a second region. The first region includes: a base film; a first layer located over the base film and including a transistor; and a second layer located over the first layer and including a light-emitting element electrically connected to the transistor. The second region includes: the base film; a substrate under the base substrate; and a wiring layer located over the base film and including a wiring extending from the first layer to an edge portion of the base film. A thickness of the substrate decreases with decreasing distance to the first region.

公开(公告)号：US20180097048A1

公开(公告)日：2018-04-05

申请号：US15701751

申请日：2017-09-12

Applicant: Japan Display Inc.

Inventor： Yasukazu Kimura ,  Takuma Nishinohara ,  Toshihiko Itoga ,  Hajime Akimoto

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/00

CPC classification number: H01L27/3246 ,  H01L51/0011 ,  H01L51/56 ,  H01L2227/323

Abstract: A display device includes a substrate having an insulating surface; a plurality of pixel electrodes on the insulating surface, the plurality of pixel electrodes located away from each other; a first insulating layer covering an end of each of the pixel electrodes and exposing a part of a top surface of each of the pixel electrodes; and an organic layer provided on each of the pixel electrodes, the organic layer including a light emitting layer. As seen in a plan view, the first insulating layer includes a plurality of first regions, each of the plurality of first regions being around the exposed part of the top surface of the pixel electrodes, and a second region located between two adjacent first regions, the second region including a recessed portion.

公开(公告)号：US09324260B2

公开(公告)日：2016-04-26

申请号：US14666437

申请日：2015-03-24

Applicant: Japan Display Inc. ,  Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Hajime Akimoto ,  Yoshirou Mikami ,  Kiyoshige Kinugawa ,  Shigeyuki Nishitani ,  Takeo Shiba

IPC: G09G5/10 ,  G09G3/32 ,  G09G3/20 ,  G09G5/18

CPC classification number: G09G3/32 ,  G09G3/2014 ,  G09G3/3208 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3283 ,  G09G3/3291 ,  G09G5/10 ,  G09G5/18 ,  G09G2300/0408 ,  G09G2300/0417 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2300/0876 ,  G09G2310/027 ,  G09G2310/062 ,  G09G2310/065 ,  G09G2310/066 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0257 ,  G09G2320/0261 ,  G09G2320/043 ,  G09G2320/0626

Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.

公开(公告)号：US09312510B2

公开(公告)日：2016-04-12

申请号：US14794545

申请日：2015-07-08

Applicant: Japan Display Inc.

Inventor： Hajime Akimoto ,  Toshihiro Sato

IPC: H01L29/72 ,  H01L51/52 ,  H01L27/32

CPC classification number: H01L27/3262 ,  G09G3/3225 ,  H01L27/1218 ,  H01L27/323 ,  H01L27/3248 ,  H01L27/3258 ,  H01L27/3276 ,  H01L51/003 ,  H01L51/5246 ,  H01L51/5253 ,  H01L51/56 ,  H01L2227/323 ,  H01L2227/326

Abstract: An organic EL display device includes an inorganic insulating film including a contact part as an opening where a contact electrode made of a conductive film is exposed, a TFT circuit layer provided on the inorganic insulating film and including a circuit including a thin film transistor, an organic EL element layer provided on the TFT circuit layer and including an organic EL element whose light emission is controlled by the circuit, and a sealing layer covering the organic EL element layer and made of an inorganic insulating material.