公开(公告)号：US09841635B2

公开(公告)日：2017-12-12

申请号：US15613561

申请日：2017-06-05

Applicant: Japan Display Inc.

Inventor： Takenori Hirota ,  Yasuhiro Kanaya ,  Hidehiro Sonoda ,  Toshiki Kaneko

IPC: G02F1/1339 ,  G02F1/1333

CPC classification number: G02F1/1339 ,  G02F1/133345 ,  G02F2001/133388

Abstract: A reliability of seal portion of a liquid crystal display device can be improved by the following structure. A liquid crystal display device includes: a TFT substrate which includes a display region and a terminal part, and has an inorganic insulating film formed on an organic passivation film and an alignment film formed over the inorganic insulating film; a counter substrate, the TFT substrate and the counter substrate bonded together by a sealing material formed at a seal part surrounding the display region; and a liquid crystal sealed inside. At the seal part, a transparent conductive oxide film is formed between the inorganic insulating film and the alignment film. The transparent conductive oxide film exists inside an edge of the TFT substrate and hence, the edge of the TFT substrate is free of the transparent conductive oxide film.

公开(公告)号：US09746718B2

公开(公告)日：2017-08-29

申请号：US14968042

申请日：2015-12-14

Applicant: Japan Display Inc.

Inventor： Yasushi Tomioka ,  Noboru Kunimatsu ,  Yosuke Hyodo ,  Toshiki Kaneko ,  Yuko Matsumoto

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

CPC classification number: G02F1/13394 ,  G02F1/1339 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/13396 ,  G02F2001/13398

Abstract: A liquid crystal display device includes: a TFT substrate having gate lines and data lines arranged thereon, the gate lines extending in a first direction and arranged in a second direction, the data lines extending in the second direction and arranged in the first direction; a counter substrate having a black matrix and a color filter; and liquid crystals put between the TFT substrate and the counter substrate. Columnar spacers are formed on the counter substrate. Pedestals are formed on portions of the TFT substrate, the portions corresponding to the columnar spacers. A convex portion and a concave portion are present at the top end of the columnar spacer. The pedestal is formed corresponding to the concave portion. The concave portion is opened at the ends thereof and connected to the lateral side of the columnar spacer.

公开(公告)号：US09709854B2

公开(公告)日：2017-07-18

申请号：US14720381

申请日：2015-05-22

Applicant: Japan Display Inc.

Inventor： Takenori Hirota ,  Yasuhiro Kanaya ,  Hidehiro Sonoda ,  Toshiki Kaneko

IPC: G02F1/1339 ,  G02F1/1333

CPC classification number: G02F1/1339 ,  G02F1/133345 ,  G02F2001/133388

Abstract: A reliability of seal portion of a liquid crystal display device can be improved by the following structure. A liquid crystal display device includes: a TFT substrate which includes a display region and a terminal part, and has an inorganic insulating film formed on an organic passivation film and an alignment film formed over the inorganic insulating film; a counter substrate, the TFT substrate and the counter substrate bonded together by a sealing material formed at a seal part surrounding the display region; and a liquid crystal sealed inside. At the seal part, a transparent conductive oxide film is formed between the inorganic insulating film and the alignment film. The transparent conductive oxide film exists inside an edge of the TFT substrate and hence, the edge of the TFT substrate is free of the transparent conductive oxide film.

公开(公告)号：US09250479B2

公开(公告)日：2016-02-02

申请号：US13719285

申请日：2012-12-19

Applicant: Japan Display Inc.

Inventor： Yasushi Tomioka ,  Noboru Kunimatsu ,  Yosuke Hyodo ,  Toshiki Kaneko ,  Yuko Matsumoto

IPC: G02F1/1339

CPC classification number: G02F1/13394 ,  G02F1/1339 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/13396 ,  G02F2001/13398

Abstract: A liquid crystal display device includes: a TFT substrate having gate lines and data lines arranged thereon, the gate lines extending in a first direction and arranged in a second direction, the data lines extending in the second direction and arranged in the first direction; a counter substrate having a black matrix and a color filter; and liquid crystals put between the TFT substrate and the counter substrate. Columnar spacers are formed on the counter substrate. Pedestals are formed on portions of the TFT substrate, the portions corresponding to the columnar spacers. A convex portion and a concave portion are present at the top end of the columnar spacer. The pedestal is formed corresponding to the concave portion. The concave portion is opened at the ends thereof and connected to the lateral side of the columnar spacer.

Abstract translation: 液晶显示装置包括：TFT基板，其上配置有栅线和数据线，栅极线沿第一方向延伸并沿第二方向布置，数据线沿第二方向延伸并沿第一方向布置; 具有黑矩阵和滤色器的对置基板; 并将液晶放置在TFT基板和对置基板之间。 在对置基板上形成柱状间隔物。 基台形成在TFT基板的部分上，对应于柱状间隔件。 在柱状间隔物的顶端存在凸部和凹部。 基座与凹部对应地形成。 凹部在其端部开口并与柱状间隔件的横向侧连接。

公开(公告)号：US12298646B2

公开(公告)日：2025-05-13

申请号：US17509090

申请日：2021-10-25

Applicant: Japan Display Inc.

Inventor： Toshiki Kaneko ,  Akihiro Hanada

IPC: G02F1/16766 ,  G02F1/167 ,  G02F1/16756 ,  H01L27/12 ,  H10D86/40 ,  H10D86/60

Abstract: According to one embodiment, a display device includes a first oxide semiconductor, a second oxide semiconductor, a first source electrode contacting the first oxide semiconductor in a first opening, a first drain electrode contacting the first oxide semiconductor in a second opening, a second source electrode contacting the second oxide semiconductor in a third opening, and a second drain electrode contacting the second oxide semiconductor in a fourth opening. A length of a layer stack of the second insulating film and the first source electrode between the first opening and the second opening is greater than a length of a layer stack of the second insulating film and the second source electrode between the third opening and the fourth opening.

公开(公告)号：US11852923B2

公开(公告)日：2023-12-26

申请号：US17685441

申请日：2022-03-03

Applicant: Japan Display Inc.

Inventor： Takenori Hirota ,  Yasuhiro Kanaya ,  Hidehiro Sonoda ,  Toshiki Kaneko

IPC: G02F1/1339 ,  G02F1/1333

CPC classification number: G02F1/1339 ,  G02F1/133345 ,  G02F1/133388

Abstract: A reliability of seal portion of a liquid crystal display device can be improved by the following structure. A liquid crystal display device includes: a TFT substrate which includes a display region and a terminal part, and has an inorganic insulating film formed on an organic passivation film and an alignment film formed over the inorganic insulating film; a counter substrate, the TFT substrate and the counter substrate bonded together by a sealing material formed at a seal part surrounding the display region; and a liquid crystal sealed inside. At the seal part, a transparent conductive oxide film is formed between the inorganic insulating film and the alignment film. The transparent conductive oxide film exists inside an edge of the TFT substrate and hence, the edge of the TFT substrate is free of the transparent conductive oxide film.

公开(公告)号：US11668972B2

公开(公告)日：2023-06-06

申请号：US17110374

申请日：2020-12-03

Applicant: Japan Display Inc.

Inventor： Akio Takimoto ,  Toshiki Kaneko ,  Takuo Kaitoh ,  Kazuhiro Nishiyama ,  Hiroyuki Kimura

IPC: G02F1/1335 ,  G02F1/1333

CPC classification number: G02F1/133553 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133524 ,  G02F1/133528

Abstract: According to one embodiment, an electronic apparatus includes a camera, a liquid crystal panel including a display portion overlaid on the camera, a light guide having a first side surface and a main surface opposed to the liquid crystal panel and a first through hole, and a light source opposed to the first side surface. The camera is provided in the first through hole.

公开(公告)号：US11531225B2

公开(公告)日：2022-12-20

申请号：US17533705

申请日：2021-11-23

Applicant: Japan Display Inc.

Inventor： Akio Takimoto ,  Toshiki Kaneko ,  Takuo Kaitoh ,  Kazuhiro Nishiyama ,  Hiroyuki Kimura

IPC: G02F1/1333 ,  G02F1/29 ,  F21V8/00 ,  G02F1/1335 ,  H04N5/225 ,  G02F1/1343

Abstract: According to one embodiment, an electronic equipment includes a liquid crystal panel including a display portion, a polarizer superposed on the display portion, and a detection element superposed on the liquid crystal panel and the polarizer to detect infrared rays through the liquid crystal panel and the polarizer.

公开(公告)号：US11300835B2

公开(公告)日：2022-04-12

申请号：US16937962

申请日：2020-07-24

Applicant: Japan Display Inc.

Inventor： Takenori Hirota ,  Yasuhiro Kanaya ,  Hidehiro Sonoda ,  Toshiki Kaneko

IPC: G02F1/1339 ,  G02F1/1333

Abstract: A reliability of seal portion of a liquid crystal display device can be improved by the following structure. A liquid crystal display device includes: a TFT substrate which includes a display region and a terminal part, and has an inorganic insulating film formed on an organic passivation film and an alignment film formed over the inorganic insulating film; a counter substrate, the TFT substrate and the counter substrate bonded together by a sealing material formed at a seal part surrounding the display region; and a liquid crystal sealed inside. At the seal part, a transparent conductive oxide film is formed between the inorganic insulating film and the alignment film. The transparent conductive oxide film exists inside an edge of the TFT substrate and hence, the edge of the TFT substrate is free of the transparent conductive oxide film.

公开(公告)号：US11275274B2

公开(公告)日：2022-03-15

申请号：US17077412

申请日：2020-10-22

Applicant: Japan Display Inc.

Inventor： Noboru Kunimatsu ,  Masaki Matsumori ,  Hidehiro Sonoda ,  Yasushi Tomioka ,  Toshiki Kaneko

IPC: G02F1/1337 ,  G02F1/1339 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1343

Abstract: The present invention prevents the shaving of an alignment film caused by a columnar spacer in a liquid crystal display device of an IPS method using photo-alignment. A plinth higher than a pixel electrode is formed at a part where a columnar spacer formed over a counter substrate touches a TFT substrate. When an alignment film of a double-layered structure is applied over the pixel electrode and the plinth, the thickness of the alignment film over the plinth reduces by a leveling effect. When photo-alignment is applied in the state, a photodegraded upper alignment film over the plinth disappears and a lower alignment film having a high mechanical strength remains. As a result, it is possible to prevent the shaving of the alignment film.