公开(公告)号：US10551685B2

公开(公告)日：2020-02-04

申请号：US16255434

申请日：2019-01-23

Applicant: Japan Display Inc.

Inventor： Taiki Makino ,  Tomokazu Ishikawa ,  Yuki Kuramoto

IPC: G02F1/1339 ,  G02F1/1333 ,  G02F1/1345

Abstract: According to one embodiment, A display device includes a first substrate includes an inorganic insulating film, a first wiring formed above the inorganic insulating film, an organic insulating film located above the inorganic insulating film and the first wiring, and a driver electrically connected to the first wiring, a second substrate opposing the first substrate, and a sealant fixing the first substrate and the second substrate, wherein the sealant comprises a first seal portion formed along a first edge of the first substrate and a second seal portion which crosses the first seal portion, and the first seal portion has a first width, and the second seal portion has a second width, the first width being greater than the second width.

公开(公告)号：US20190373226A1

公开(公告)日：2019-12-05

申请号：US16427367

申请日：2019-05-31

Applicant: Japan Display Inc.

Inventor： Tomokazu Ishikawa ,  Hitomi Hasegawa ,  Masaru Nakakomi

IPC: H04N9/31 ,  G02F1/1337 ,  G02F1/1333 ,  G02F1/1362

Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.

公开(公告)号：US10001687B2

公开(公告)日：2018-06-19

申请号：US15245804

申请日：2016-08-24

Applicant: Japan Display Inc.

Inventor： Masato Shimura ,  Shunsuke Yuge ,  Hiroshi Miyairi ,  Tomokazu Ishikawa ,  Tomonori Nishino

IPC: G02F1/1337 ,  G02F1/1362 ,  G02F1/1343

CPC classification number: G02F1/136227 ,  G02F1/134336

Abstract: In a high-resolution liquid crystal display device, measures against display unevenness caused by generation of a region where no alignment film is applied are provided. A liquid crystal display device includes a pixel formed between a scanning line and a video signal line. The pixel includes a TFT, a pixel electrode, and a contact hole connecting the TFT and the pixel electrode. The contact hole is formed in an insulation film formed between the pixel electrode and the TFT. Assuming that a horizontal pitch of the video signal line is ph and a horizontal diameter of the contact hole is dh, ph is 26 μm or less and s/ph is 0.73 or more where s=ph−dh. A tapered angle of a sidewall of the contact hole is 53 degrees or less. A thickness of an alignment film over the pixel electrode is 110 nm or more.

公开(公告)号：US09829750B2

公开(公告)日：2017-11-28

申请号：US14943217

申请日：2015-11-17

Applicant: Japan Display Inc.

Inventor： Taiki Makino ,  Tomokazu Ishikawa ,  Yuki Kuramoto

IPC: G02F1/1339 ,  G02F1/1333 ,  G02F1/1345

CPC classification number: G02F1/1339 ,  G02F1/133345 ,  G02F1/13452

Abstract: According to one embodiment, A display device includes a first substrate includes an inorganic insulating film, a first wiring formed above the inorganic insulating film, an organic insulating film located above the inorganic insulating film and the first wiring, and a driver electrically connected to the first wiring, a second substrate opposing the first substrate, and a sealant fixing the first substrate and the second substrate, wherein the sealant comprises a first seal portion formed along a first edge of the first substrate and a second seal portion which crosses the first seal portion, and the first seal portion has a first width, and the second seal portion has a second width, the first width being greater than the second width.

公开(公告)号：US12072591B2

公开(公告)日：2024-08-27

申请号：US18517038

申请日：2023-11-22

Applicant: Japan Display Inc.

Inventor： Tomokazu Ishikawa ,  Masaru Nakakomi

IPC: G02F1/1333 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/136227 ,  G02F1/133345 ,  G02F1/133357 ,  G02F1/13398 ,  G02F1/136209 ,  G02F1/136222 ,  G02F1/1368 ,  G02F1/13394 ,  G02F1/134318 ,  G02F1/134363

Abstract: A liquid crystal display device includes a thin film transistor (TFT) substrate and a counter substrate that are disposed opposite to each other with a liquid crystal layer in between. The TFT substrate has, an organic passivation film formed covering the TFT, and a pixel electrode and a common electrode formed on the organic passivation film, the organic passivation film having a through-hole to connect the pixel electrode and the TFT. A columnar spacer is formed on the counter substrate to define a distance between the TFT substrate and the counter substrate. A planarization film made of resin is formed in the through-hole. A recess is formed in the through-hole by a surface of the planarization film and a sidewall of the through-hole. A tip end of the columnar spacer exists in the recess.

公开(公告)号：US11703704B2

公开(公告)日：2023-07-18

申请号：US17863438

申请日：2022-07-13

Applicant: Japan Display Inc.

Inventor： Tomokazu Ishikawa ,  Masateru Morimoto ,  Masaru Nakakomi

IPC: G02F1/1333 ,  G02F1/1339 ,  G06V40/13 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/133 ,  G02F1/1337

CPC classification number: G02F1/13338 ,  G02F1/13318 ,  G02F1/13394 ,  G02F1/133512 ,  G02F1/134309 ,  G06V40/1318 ,  G02F1/133707

Abstract: In a plan view, a spacer member is arranged at a position overlapping with a first line portion of a second pixel electrode. The second pixel electrode has a second connecting portion that connects the first line portion and the second line portion arranged next to the first line portion. The second connecting portion of the pixel electrode is arranged between a region where the first line portion of the second pixel electrode overlaps with the spacer member and one end portion of the first line portion of the second pixel electrode.

公开(公告)号：US11640090B2

公开(公告)日：2023-05-02

申请号：US17655449

申请日：2022-03-18

Applicant: Japan Display Inc.

Inventor： Masaru Nakakomi ,  Tomokazu Ishikawa

IPC: G02F1/1362 ,  G02F1/1333 ,  G06F3/044

Abstract: According to one embodiment, a display device including a first substrate including a first insulating film and a second insulating film that includes a band-shaped first thick film portion, an island-shaped second thick film portion, a first contact hole penetrating the first thick film portion, and a second contact hole penetrating the second thick film portion, a first thickness of the first thick film portion and a second thickness of the second thick film portion are larger than a film thickness of the second insulating film between the first and second thick film portions, and a second substrate comprises a spacer overlapping the first thick film portion.

公开(公告)号：US11353757B2

公开(公告)日：2022-06-07

申请号：US16812840

申请日：2020-03-09

Applicant: Japan Display Inc.

Inventor： Tomokazu Ishikawa ,  Masaru Nakakomi

IPC: G02F1/1362 ,  G02F1/1333 ,  H01L23/60 ,  H01L27/12

Abstract: According to one embodiment, a display device includes, a first inorganic insulating layer, a first metal layer, a wiring group, a first organic insulating layer formed above the first inorganic insulating layer, the first metal layer and the wiring group, a second inorganic insulating layer formed above the first organic insulating layer and includes an opening portion overlapping the first metal layer, and a first transparent conductive layer formed above the second inorganic insulating layer, overlapping the opening portion and electrically connected to the first metal layer. The first organic insulating layer includes a groove portion which exposes the first inorganic insulating layer between the opening portion and the wiring group.

公开(公告)号：US11353736B2

公开(公告)日：2022-06-07

申请号：US17135205

申请日：2020-12-28

Applicant: Japan Display Inc.

Inventor： Tomokazu Ishikawa ,  Yuki Kuramoto ,  Haruki Yamada ,  Katsuhiro Kato

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/1339

Abstract: According to one embodiment, a display device comprises a display panel and a polarizing plate. The display panel comprises a display area, a non-display area surrounding the display area, and a light-shielding layer arranged in the display area and the non-display area. The polarizing plate is provided on a surface of the display panel, and including an end portion located in the non-display area. In this display device, the light-shielding layer opposite to the end portion of the polarizing plate is at least partially removed.

公开(公告)号：US11215878B2

公开(公告)日：2022-01-04

申请号：US16929610

申请日：2020-07-15

Applicant: Japan Display Inc.

Inventor： Tomonori Nishino ,  Masato Shimura ,  Tomokazu Ishikawa ,  Yuki Kuramoto ,  Satoshi Hashimoto

IPC: G02F1/1339 ,  G02F1/1368 ,  G02F1/1333

Abstract: In order to avoid generation of black unevenness caused by the water intrusion into a liquid crystal display device, there is to provide a liquid crystal display device including a display area and a terminal portion, in which a TFT substrate with an organic passivation film formed and an opposite substrate are adhered to each other by a seal portion and a liquid crystal is enclosed there, wherein in the seal portion of the TFT substrate, a groove-shaped through-hole is formed in the organic passivation film to surround the display area, a water absorption layer formed of the same material in the same process as that of the organic passivation film is formed within the groove-shaped through-hole, and the water absorption layer is not covered with the inorganic insulating film.