公开(公告)号：US11668982B2

公开(公告)日：2023-06-06

申请号：US17946602

申请日：2022-09-16

Applicant: Japan Display Inc.

Inventor： Yasushi Tomioka ,  Yosuke Hyodo ,  Hidehiro Sonoda ,  Noboru Kunimatsu

IPC: G02F1/13 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1368 ,  H01L27/12 ,  G02F1/1337

CPC classification number: G02F1/134363 ,  G02F1/1368 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/133788 ,  G02F1/136227 ,  H01L27/1218 ,  G02F2202/02

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 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：US10754206B2

公开(公告)日：2020-08-25

申请号：US16276011

申请日：2019-02-14

Applicant: Japan Display Inc.

Inventor： Tatsuya Ide ,  Daisuke Sonoda ,  Yasushi Tomioka

IPC: H01L51/00 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/1345 ,  G02F1/1335 ,  G02F1/136 ,  G02F1/1362

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：US10459264B2

公开(公告)日：2019-10-29

申请号：US15628972

申请日：2017-06-21

Applicant: Japan Display Inc.

Inventor： Yasushi Tomioka ,  Hajime Yamaguchi

IPC: G02F1/1333 ,  H01L27/12 ,  H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  H05K1/18 ,  H01L23/498 ,  H05K1/02 ,  H05K1/14 ,  H05K3/32 ,  H05K3/36

Abstract: According to one embodiment, a display device includes a first substrate including a first area and a second area, the first area including a display area where pixels are arranged, and the second area being adjacent to the first area and where wirings are arranged, wherein the wirings are covered with a protection layer, the second area includes a peripheral area and a central area in an arrangement direction of the wirings, and a thickness of at least one of the first substrate and the protection layer varies between the peripheral area and the central area.

公开(公告)号：US10247990B2

公开(公告)日：2019-04-02

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 ,  H01L27/12 ,  G02F1/1368 ,  G02F1/1333 ,  G02F1/1362

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：US20180366534A1

公开(公告)日：2018-12-20

申请号：US16008580

申请日：2018-06-14

Applicant: Japan Display Inc.

Inventor： Yasushi Tomioka ,  Hajime Yamaguchi

IPC: H01L27/32 ,  H01L51/00

CPC classification number: H01L27/3279 ,  H01L51/0097 ,  H01L2251/5338

Abstract: According to one embodiment, there is provided a display device which includes an insulating substrate having a bend area, and a wiring line located in the bend area. The bend area is bent about a bend axis extending in a first direction. The wiring line in the bend area has a first portion which extends in the first direction and a second portion which extends in a direction intersecting the first portion and is connected to the first portion. A first angle formed by the first portion and the second portion is less than 90 degrees.

公开(公告)号：US09880424B2

公开(公告)日：2018-01-30

申请号：US14963624

申请日：2015-12-09

Applicant: Japan Display Inc.

Inventor： Yosuke Hyodo ,  Yasushi Tomioka ,  Takenori Hirota

IPC: G02F1/1339 ,  G02F1/1333 ,  G02F1/161 ,  G02F1/01

CPC classification number: G02F1/1339 ,  G02F1/0107 ,  G02F1/133345 ,  G02F1/161

Abstract: According to one embodiment, a liquid crystal display panel includes a first substrate, a second substrate, a sealant and a liquid crystal layer. The first substrate includes a switching element and a pixel electrode. The second substrate includes a first organic insulating film in which a first trench portion is formed, a projection formed beneath the first organic insulating film, and a first barrier layer. The first barrier layer is formed continuously from an inside of the first trench portion to under the projection.

公开(公告)号：US09778520B2

公开(公告)日：2017-10-03

申请号：US15401795

申请日：2017-01-09

Applicant: Japan Display Inc.

Inventor： Yasushi Tomioka ,  Yosuke Hyodo ,  Hidehiro Sonoda ,  Noboru Kunimatsu

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

CPC classification number: G02F1/134363 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/133788 ,  G02F1/136227 ,  G02F1/1368 ,  G02F2202/02 ,  H01L27/1218

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：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：US09507211B2

公开(公告)日：2016-11-29

申请号：US14474511

申请日：2014-09-02

Applicant: Japan Display Inc.

Inventor： Yasushi Tomioka ,  Noboru Kunimatsu ,  Hidehiro Sonoda ,  Yosuke Hyodo

IPC: G02F1/1333 ,  G02F1/1337 ,  G02F1/1339

CPC classification number: G02F1/133788 ,  G02F1/133345 ,  G02F1/13394 ,  G02F2001/133388

Abstract: The invention provides a liquid crystal display device which is highly reliable even with a slim frame area. Ina liquid crystal display device having a display area and a frame area, the frame area includes, in an area close to the display area, a flat portion where an organic insulation film, a transparent conductive film, and an alignment film are stacked in this order and, in an area away from the display area, a groove structure formed in the organic insulation film, the groove structure being continuous surrounding the display area. The organic insulation film is less wettable than the transparent conductive film by the alignment film ink.

Abstract translation: 本发明提供一种液晶显示装置，其即使具有纤细的框架区域也是高度可靠的。 在具有显示区域和框架区域的液晶显示装置中，框架区域在靠近显示区域的区域中包括在其中堆叠有机绝缘膜，透明导电膜和取向膜的平坦部分 并且在远离显示区域的区域中，形成在有机绝缘膜中的凹槽结构，所述凹槽结构连续围绕显示区域。 有机绝缘膜比通过取向膜墨水的透明导电膜的可润湿性差。

公开(公告)号：US20160109771A1

公开(公告)日：2016-04-21

申请号：US14978671

申请日：2015-12-22

Applicant: Japan Display Inc.

Inventor： Yasushi Tomioka ,  Yosuke Hyodo ,  Hidehiro Sonoda ,  Noboru Kunimatsu

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

CPC classification number: G02F1/134363 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/133788 ,  G02F1/136227 ,  G02F1/1368 ,  G02F2202/02 ,  H01L27/1218

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.

Abstract translation: 在液晶显示装置中，在有机钝化膜上形成公共电极，在公共电极上形成层间绝缘膜，在层间绝缘膜上形成有狭缝的像素电极，并且形成通孔 有机钝化膜和层间绝缘膜，使得像素电极通过通孔连接到TFT的源电极。 此外，贯通孔的上基板周围的锥角小于下基板周围的锥角。 因此，当通孔的直径减小时，取向膜材料可以容易地流入通孔，以连接像素和源电极，防止由于不存在取向膜或由于取向而导致的不均匀亮度的显示缺陷 围绕通孔的膜不规则。