公开(公告)号：US20230236463A1

公开(公告)日：2023-07-27

申请号：US18127035

申请日：2023-03-28

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Toshimasa Ishigaki ,  Hidehiro Sonoda ,  Sumito Ueta

IPC: G02F1/1362 ,  G02F1/1337 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1368

CPC classification number: G02F1/136227 ,  G02F1/1337 ,  G02F1/1368 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/133707 ,  G02F1/133357 ,  G02F2201/121 ,  G02F2201/123

Abstract: A liquid crystal display device comprising a TFT substrate having pixels each including a common electrode formed on an organic passivation film, an interlayer insulating film formed so as to cover the common electrode, a pixel electrode having a slit and formed on the interlayer insulating film, a through-hole formed in the organic passivation film and the interlayer insulating film, and a source electrode electrically conducted to the pixel electrode via the through-hole. A taper angle at a depth of D/2 of the through-hole is equal to or more than 50 degrees. The pixel electrode covers part of a side wall of the through-hole but does not cover the remaining part of the side wall of the through-hole. This configuration facilitates the alignment film material to flow into the through-hole, thereby solving a thickness unevenness of the alignment film in vicinity of the through-hole.

公开(公告)号：US20230186674A1

公开(公告)日：2023-06-15

申请号：US18102158

申请日：2023-01-27

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Kazuki MATSUNAGA ,  Toshiyuki HIGANO ,  Kazuhiro NISHIYAMA

IPC: G06V40/13 ,  H01L27/146

CPC classification number: G06V40/1318 ,  G06V40/1329 ,  H01L27/14643 ,  H01L27/14685

Abstract: According to an aspect, a detection device includes: a plurality of light-receiving elements configured to receive light; and a light guide portion one surface of which faces the light-receiving elements. The light guide portion includes a plurality of light guide paths provided throughout from the one surface to the other surface of the light guide portion, and a light-absorbing portion having higher absorbance of the light than that of the light guide paths. When viewed from a direction in which the light-receiving elements and the light guide portion are stacked, more than one of the light guide paths overlap one of the light-receiving elements.

公开(公告)号：US20230020723A1

公开(公告)日：2023-01-19

申请号：US17946602

申请日：2022-09-16

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Yosuke HYODO ,  Hidehiro SONODA ,  Noboru KUNIMATSU

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1368 ,  H01L27/12 ,  G02F1/1337

Abstract: In a liquid Crystal display device, a common electrode is formed on an organic passivation film, an interlayer insulating film is formed on the common electrode, a pixel electrode with a slit is formed on the interlayer insulating film, and a through hole is formed in the organic passivation film and the interlayer insulating film, so that the pixel electrode is connected to a source to electrode of a TFT through the through hole. Further, the taper angle around the upper base of the through hole is smaller than the taper angle around the lower base. Thus, the alignment film material can easily flow into the through hole when the dimeter of the through hole is reduced to connect the pixel and source electrodes, preventing display defects such as uneven brightness due to the absence of the alignment film or due to the alignment film irregularity around the through hole.

公开(公告)号：US20220026753A1

公开(公告)日：2022-01-27

申请号：US17499952

申请日：2021-10-13

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Toshimasa ISHIGAKI ,  Hidehiro SONODA ,  Sumito UETA

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

Abstract: A liquid crystal display device comprising a TFT substrate having pixels each including a common electrode formed on an organic passivation film, an interlayer insulating film formed so as to cover the common electrode, a pixel electrode having a slit and formed on the interlayer insulating film, a through-hole formed in the organic passivation film and the interlayer insulating film, and a source electrode electrically conducted to the pixel electrode via the through-hole. A taper angle at a depth of D/2 of the through-hole is equal to or more than 50 degrees. The pixel electrode covers part of a side wall of the through-hole but does not cover the remaining part of the side wall of the through-hole. This configuration facilitates the alignment film material to flow into the through-hole, thereby solving a thickness unevenness of the alignment film in vicinity of the through-hole.

公开(公告)号：US20210074795A1

公开(公告)日：2021-03-11

申请号：US16953628

申请日：2020-11-20

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA

IPC: H01L27/32

Abstract: According to one embodiment, a display device including, a substrate including a first area including a display area, a second area including a mount area, and a third area located between the first area and the second area, a first inorganic insulating layer provided on the substrate in the first area and the second area, a line provided on the first inorganic insulating layer and extending across the first area, the second area, and the third area, and, a second inorganic insulating layer provided on the line, the second inorganic insulating layer extending to an area overlaid on at least the first inorganic insulating layer.

公开(公告)号：US20210072603A1

公开(公告)日：2021-03-11

申请号：US16953997

申请日：2020-11-20

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Yosuke HYODO ,  Hidehiro SONODA ,  Noboru KUNIMATSU

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1368 ,  H01L27/12 ,  G02F1/1337

Abstract: In a liquid crystal display device, a common electrode is formed on an organic passivation film, an interlayer insulating film is formed on the common electrode, a pixel electrode with a slit is formed on the interlayer insulating film, and a through hole is formed in the organic passivation film and the interlayer insulating film, so that the pixel electrode is connected to a source electrode of a TFT through the through hole. Further, the taper angle around the upper base of the through hole is smaller than the taper angle around the lower base. Thus, the alignment film material can easily flow into the through hole when the diameter of the through hole is reduced to connect the pixel and source electrodes, preventing display defects such as uneven brightness due to the absence of the alignment film or due to the alignment film irregularity around the through hole.

公开(公告)号：US20190179186A1

公开(公告)日：2019-06-13

申请号：US16276011

申请日：2019-02-14

Applicant: Japan Display Inc.

Inventor： Tatsuya IDE ,  Daisuke SONODA ,  Yasushi TOMIOKA

IPC: G02F1/1343 ,  H01L51/00 ,  G02F1/136 ,  G02F1/1335 ,  G02F1/1333 ,  G02F1/1345

CPC classification number: G02F1/1343 ,  G02F1/133308 ,  G02F1/133509 ,  G02F1/133514 ,  G02F1/13452 ,  G02F1/136 ,  G02F1/136286 ,  G02F2001/133334 ,  G02F2202/22 ,  H01L51/0097 ,  H01L2251/5338 ,  Y02E10/549

Abstract: According to one embodiment, a display device includes an insulating substrate including a first surface, and a second surface opposite to the first surface, a circuit board mounted on the first surface, a supporting member adhered to the insulating substrate on the second surface, and an antistatic layer located between the insulating substrate and the supporting member.

公开(公告)号：US20190051858A1

公开(公告)日：2019-02-14

申请号：US16100751

申请日：2018-08-10

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Hajime YAMAGUCHI ,  Akio MURAYAMA

IPC: H01L51/52 ,  G02F1/1339 ,  G02F1/1333 ,  H01L27/32

Abstract: According to one embodiment, a display device includes a display panel including a first area including a display area, a second area including a terminal portion and a third area located between the first area and the second area and a cover member adhered to the first area via an adhesive layer, and the display panel is bent in the third area so that the first area and the second area oppose each other on a side opposite to the cover member, and the third area is adhered to the cover member by a first resin.

公开(公告)号：US20190041707A1

公开(公告)日：2019-02-07

申请号：US16158402

申请日：2018-10-12

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Yosuke HYODO ,  Hidehiro SONODA ,  Noboru KUNIMATSU

IPC: G02F1/1343 ,  G02F1/1337 ,  G02F1/1335 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1333 ,  H01L27/12

Abstract: In a liquid crystal display device, a common electrode is formed on an organic passivation film, an interlayer insulating film is formed on the common electrode, a pixel electrode with a slit is formed on the interlayer insulating film, and a through hole is formed in the organic passivation film and the interlayer insulating film, so that the pixel electrode is connected to a source electrode of a TFT through the through hole. Further, the taper angle around the upper base of the through hole is smaller than the taper angle around the lower base. Thus, the alignment film material can easily flow into the through hole when the diameter of the through hole is reduced to connect the pixel and source electrodes, preventing display defects such as uneven brightness due to the absence of the alignment film or due to the alignment film irregularity around the through hole.

公开(公告)号：US20180337367A1

公开(公告)日：2018-11-22

申请号：US15977377

申请日：2018-05-11

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Hajime YAMAGUCHI

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

CPC classification number: H01L27/3276 ,  G02F2201/121 ,  G02F2201/123 ,  H01L51/0097 ,  H01L51/5203 ,  H01L51/5253 ,  H01L51/5256 ,  H01L2251/5338

Abstract: According to one embodiment, a display device includes an insulating substrate having a display area, a pad area and a bend area, wiring lines, a first protective film and a second protective film. The wiring lines are elongated from the display area to the pad area. The first protective film is located on the insulating substrate and the wiring lines. The second protective film is located on the first protective film and is formed of an organic insulating material different from that of the first protective film.