公开(公告)号：US11754898B2

公开(公告)日：2023-09-12

申请号：US18083582

申请日：2022-12-19

Applicant: Japan Display Inc.

Inventor： Osamu Itou

IPC: G02F1/1362 ,  G02F1/1337 ,  H01L27/12

CPC classification number: G02F1/136286 ,  G02F1/1337 ,  H01L27/124 ,  H01L27/1218 ,  G02F1/136222 ,  G02F2201/121 ,  G02F2201/123

Abstract: According to one embodiment, an array substrate includes a semiconductor layer, scanning and signal lines, first and second insulating layers, a pedestal and a pixel electrode. The scanning line is opposed to the semiconductor layer. The first insulating layer is provided above the semiconductor layer. The signal line and the pedestal are connected to the semiconductor layer through first and second contact holes in the first insulating layer. The second insulating layer is provided above the pedestal. The pixel electrode is connected to the pedestal through a third contact hole in the second insulating layer. The signal line and the pedestal are provided in layers different from each other.

公开(公告)号：US11733569B2

公开(公告)日：2023-08-22

申请号：US17847908

申请日：2022-06-23

Applicant: Japan Display Inc.

Inventor： Takashi Doi ,  Toshihiro Ninomiya

IPC: G02F1/1343 ,  G06F3/041 ,  G09G3/36 ,  G06F3/01 ,  G06F3/0354 ,  G02F1/1339 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/134309 ,  G02F1/1368 ,  G02F1/13338 ,  G02F1/13394 ,  G02F1/134336 ,  G02F1/136286 ,  G06F3/017 ,  G06F3/03545 ,  G06F3/0412 ,  G09G3/3655 ,  G09G3/3696 ,  G02F2201/121 ,  G02F2201/123 ,  G06F2203/04101 ,  G06F2203/04808

Abstract: According to one embodiment, a liquid crystal display apparatus includes a display region including a plurality of display pixels arrayed in a matrix, an array substrate including a plurality of first electrodes which are arrayed in a matrix, second electrodes which are arranged on the same layer as a layer of the first electrodes and connect the first electrodes to each. other, and third electrodes which are arrayed in a matrix on the first electrodes and the second electrodes, a countersubstrate which is arranged to face the array substrate, and a liquid crystal layer which is interposed between the array substrate and the countersubstrate.

公开(公告)号：US11719986B2

公开(公告)日：2023-08-08

申请号：US17148944

申请日：2021-01-14

Applicant: Japan Display Inc.

Inventor： Kazuhide Mochizuki ,  Hitoshi Tanaka

IPC: G02F1/1362 ,  G02F1/1368 ,  H01L27/12 ,  G02F1/1345 ,  H01L29/786

CPC classification number: G02F1/136209 ,  G02F1/1345 ,  G02F1/1368 ,  G02F1/136227 ,  G02F1/136286 ,  H01L27/124 ,  G02F1/136213 ,  G02F2201/121 ,  G02F2202/10 ,  H01L27/1225 ,  H01L29/78633 ,  H01L29/78693

Abstract: According to one embodiment, a display device including an insulating substrate, a first gate driver, a first gate line and a conductive material layer is provided. The first gate line has a first end connected to the first gate driver and a second end opposite to the first end, and extends in a first direction. The conductive material layer is located between the insulating substrate and the first gate line, overlaps the first gate line, and extends in the first direction. In the display device, the second end of the first gate line is electrically connected to the conductive material layer.

公开(公告)号：US20230205028A1

公开(公告)日：2023-06-29

申请号：US18112536

申请日：2023-02-22

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hajime KIMURA ,  Hideki UOCHI

IPC: G02F1/1368 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1333

CPC classification number: G02F1/1368 ,  G02F1/133555 ,  G02F1/134363 ,  G02F1/13439 ,  G02F1/136227 ,  G02F1/133345 ,  G02F1/133371 ,  G02F1/136286 ,  G02F1/133553 ,  G02F1/136209 ,  G02F2201/124 ,  G02F1/134372 ,  G02F1/136222 ,  G02F2201/121 ,  G02F2201/123

Abstract: It is an object of the present invention to apply a sufficient electrical field to a liquid crystal material in a horizontal electrical field liquid crystal display device typified by an FFS type. In a horizontal electrical field liquid crystal display, an electrical field is applied to a liquid crystal material right above a common electrode and a pixel electrode using plural pairs of electrodes rather than one pair of electrodes. One pair of electrodes includes a comb-shaped common electrode and a comb-shaped pixel electrode. Another pair of electrodes includes a common electrode provided in a pixel portion and the comb-shaped pixel electrode.

公开(公告)号：US11681188B2

公开(公告)日：2023-06-20

申请号：US16858529

申请日：2020-04-24

Applicant: Samsung Display Co., Ltd.

Inventor： In Woo Kim

IPC: G02F1/1362 ,  H01L27/12 ,  G02F1/1343 ,  G02F1/1333

CPC classification number: G02F1/136227 ,  G02F1/13439 ,  G02F1/133345 ,  H01L27/124 ,  G02F1/134372 ,  G02F1/136295 ,  G02F2201/121 ,  G02F2201/123

Abstract: An exemplary embodiment of the present inventive concept provides a display device including: a substrate; a metal layer disposed on the substrate; a pixel electrode disposed on the metal layer and including a protrusion overlapping the metal layer; a first insulating layer covering the metal layer and the pixel electrode; an extension of a drain electrode disposed on the first insulating layer and overlapping a portion of the protrusion; a second insulating layer covering the first insulating layer and the extension; and a pixel electrode connector disposed on the second insulating layer and overlapping the protrusion and the extension, wherein the first insulating layer and the second insulating layer include a first opening exposing an upper surface of the protrusion and an upper surface of the extension, and the pixel electrode connector contacts the upper surface of the extension and the upper surface of the protrusion through the first opening.

公开(公告)号：US11681183B2

公开(公告)日：2023-06-20

申请号：US17676462

申请日：2022-02-21

Applicant: Japan Display Inc.

Inventor： Keisuke Takano

IPC: G02F1/1337 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1368

CPC classification number: G02F1/1337 ,  G02F1/1339 ,  G02F1/1368 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/134309 ,  G02F1/133742 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2201/40 ,  G02F2202/10

Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a first alignment film covering a pixel electrode, a second substrate including a second alignment film covering a second common electrode, a sealant attaching the first substrate and the second substrate, and a liquid crystal layer held between the first alignment film and the second alignment film, wherein the first alignment film and the second alignment film are formed of a material in which a principal chain is composed of silica (SiO2), and extend at a position overlapping the sealant between an inner face and an outer face of the sealant.

公开(公告)号：US20230152645A1

公开(公告)日：2023-05-18

申请号：US18157982

申请日：2023-01-23

Applicant: Japan Display Inc.

Inventor： Kentaro OKUYAMA ,  Yudai NUMATA

IPC: G02F1/1362 ,  G02F1/1334 ,  G02F1/1335

CPC classification number: G02F1/136286 ,  G02F1/136277 ,  G02F1/136209 ,  G02F1/1334 ,  G02F1/133553 ,  G02F2201/123 ,  G02F2201/121

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first insulating substrate, a scanning line, a signal line, a switching, and a pixel electrode. The liquid crystal layer includes a polymer in a shape of a streak and a liquid crystal molecule. The scanning line includes a conductive layer located between the first insulating substrate and the liquid crystal layer, and a first reflective layer located between the first insulating substrate and the conductive layer and having a reflectance higher than a reflectance of the conductive layer.

公开(公告)号：US11650467B2

公开(公告)日：2023-05-16

申请号：US17945789

申请日：2022-09-15

Applicant: Japan Display Inc.

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

IPC: G02F1/136 ,  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: To prevent a phenomenon that an alignment film material is difficult to flow into the through-hole where a diameter of a through-hole for connecting between a pixel electrode and a source electrode is reduced.
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：US20190250481A1

公开(公告)日：2019-08-15

申请号：US16110467

申请日：2018-08-23

Applicant: BOE Technology Group Co., Ltd. ,  Chengdu BOE Optoelectronics Technology Co., Ltd.

Inventor： Bing Xu ,  Dongwang Jia ,  Junping Bao ,  Xinghua Li

IPC: G02F1/167 ,  G02F1/1339 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/1343 ,  H05B37/02

CPC classification number: G02F1/167 ,  G02B6/0068 ,  G02F1/133512 ,  G02F1/133606 ,  G02F1/13394 ,  G02F1/13439 ,  G02F1/1676 ,  G02F1/1681 ,  G02F2001/133612 ,  G02F2001/133618 ,  G02F2201/121 ,  H02S99/00 ,  H05B37/0218

Abstract: An electronic paper display screen, a method for driving the same, and an electronic paper display device are provided. The electronic paper display screen comprising: a first substrate and a second substrate opposite to each other; a plurality of insulating barrier walls dividing a space between the first substrate and the second substrate into a plurality of closed chambers; a plurality of first transparent electrodes, each of which is disposed on the first substrate and is located at a position corresponding to each of the closed chambers; a plurality of second electrodes, each of which is located in each of the closed chambers and is disposed on a sidewall of the insulating barrier walls; and a plurality of black charged particles which are disposed within each of the closed chambers and move under effect of an electric field.

公开(公告)号：US20190243190A1

公开(公告)日：2019-08-08

申请号：US15955708

申请日：2018-04-18

Applicant: Chunghwa Picture Tubes, LTD.

Inventor： Chen-De Lee ,  Chun-Ming Huang ,  Chih-Chuan Chen

IPC: G02F1/1343 ,  G02F1/1333 ,  G02F1/1368 ,  H01L27/12

CPC classification number: G02F1/134309 ,  G02F1/133345 ,  G02F1/134363 ,  G02F2001/134318 ,  G02F2001/134372 ,  G02F2201/121 ,  G02F2201/123

Abstract: A pixel array substrate includes a substrate, pixel units, and signal lines. Each pixel unit includes an active device, a first insulation layer, a common electrode, a second insulation layer, and a pixel electrode. The common electrode is disposed on the first insulation layer and has openings. The pixel electrode is disposed on the second insulation layer and overlapped with the common electrode. The pixel electrode is electrically connected to the active device. The signal lines are disposed on the substrate and electrically connected to the active device, respectively. The openings include at least one first opening, and an orthogonal projection of the at least one first opening on the substrate is located between orthogonal projections of the pixel electrodes on the substrate and orthogonal projections of the signal lines on the substrate. A display panel including the pixel array substrate is also provided.