公开(公告)号：US11860483B2

公开(公告)日：2024-01-02

申请号：US18194666

申请日：2023-04-03

Applicant: Japan Display Inc.

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

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

CPC classification number: G02F1/1339 ,  G02F1/1368 ,  G02F1/13396 ,  G02F1/133311 ,  G02F1/133345

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.

公开(公告)号：US10831047B2

公开(公告)日：2020-11-10

申请号：US16657036

申请日：2019-10-18

Applicant: Japan Display Inc.

Inventor： Takahiro Ochiai ,  Yuki Kuramoto ,  Masahiro Hoshiba

IPC: G02F1/1345 ,  G02F1/133 ,  G02F1/1368 ,  G02F1/1339 ,  G02F1/1341 ,  H01L29/417 ,  G09G3/36 ,  G11C19/28

Abstract: A liquid crystal display device includes a thin film transistor substrate, a counter substrate that faces the thin film transistor substrate, a liquid crystal composition that is arranged between the thin film transistor substrate and the counter substrate, an oriented film that arranges orientation of the liquid crystal composition contacting with the thin film transistor substrate, a seal material that seals the liquid crystal composition between the two substrates, and a driver circuit. The driver circuit has a light transmission area that is formed inside of the driver circuit, and is higher in light transmittance than an area in which a non-transparent conductive film forming the driver circuit is formed, and a high sealing property area in which the seal material and an insulating film come into direct contact with each other between the light transmission area and an outer edge of the thin film transistor substrate.

公开(公告)号：US10684503B2

公开(公告)日：2020-06-16

申请号：US16159120

申请日：2018-10-12

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：US20200142227A1

公开(公告)日：2020-05-07

申请号：US16727579

申请日：2019-12-26

Applicant: Japan Display Inc.

Inventor： Taiki Makino ,  Tomokazu Ishikawa ,  Yuki Kuramoto

IPC: G02F1/1339 ,  G02F1/1333

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：US10409112B2

公开(公告)日：2019-09-10

申请号：US15423729

申请日：2017-02-03

Applicant: Japan Display Inc.

Inventor： Tomokazu Ishikawa ,  Yuki Kuramoto ,  Hiroshi Miyairi ,  Ryota Kobayashi ,  Katsuto Sugimoto

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

Abstract: A liquid crystal display device has pixels in a TFT substrate, each of the pixels has a TFT. An organic insulting film 108 is formed to cover the TFT. A first electrode 109 and a second electrode 111 are formed above the organic insulting film 108 with an inorganic insulating film 110 placed between the first electrode 109 and the second electrode 111. An alignment film is formed on the first electrode 109 and the second electrode 111. The second electrode 111 connects with the TFT through a contact hole formed in the organic insulating film 108. A cross section of the organic insulating film 108 that includes the contact hole and is parallel to the second direction has a convex section and a concave section 70 at a bank located near the contact hole, the convex section being located closer to the contact hole than the concave section 70.

公开(公告)号：US10209576B2

公开(公告)日：2019-02-19

申请号：US15450405

申请日：2017-03-06

Applicant: Japan Display Inc.

Inventor： Tomokazu Ishikawa ,  Yuki Kuramoto ,  Hitomi Hasegawa

IPC: G02F1/1333 ,  G02F1/1335 ,  G02F1/1339 ,  G02F1/1345 ,  G02F1/1368

Abstract: An object of this invention is to increase the number of liquid crystal display panels obtained from a mother substrate. There is provided a liquid crystal display device including a TFT substrate and a counter substrate bonded together by a seal portion formed along the periphery of the counter substrate, the TFT substrate having a terminal area formed in a portion thereof not opposed to the counter substrate. The TFT substrate has a bank-like organic passivation film formed along the edge of the terminal area. A stepped part is formed on the organic passivation film. The film thickness of the organic passivation film on the edge side of the stepped part is greater than the film thickness inside the stepped part.

公开(公告)号：US20190041689A1

公开(公告)日：2019-02-07

申请号：US16159120

申请日：2018-10-12

Applicant: Japan Display Inc.

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

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

CPC classification number: G02F1/133512 ,  G02F1/133308 ,  G02F1/13338 ,  G02F1/133528 ,  G02F1/13394 ,  G02F2001/133331 ,  G02F2001/13396 ,  G02F2202/28

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：US11860487B2

公开(公告)日：2024-01-02

申请号：US17888885

申请日：2022-08-16

Applicant: Japan Display Inc.

Inventor： Masato Nakamura ,  Daichi Hosokawa ,  Yuki Kuramoto ,  Hideyuki Takahashi

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

CPC classification number: G02F1/134336 ,  G02F1/13439 ,  G02F1/133512 ,  G02F1/134309 ,  G02F1/136286 ,  G02F1/1362 ,  G02F1/133388 ,  G02F1/133707 ,  G02F1/134345 ,  G02F2201/52 ,  G02F2201/56

Abstract: According to one embodiment, a liquid crystal display device includes a first area, second area, liquid crystal layer, and a plurality of pixels. Each subpixel includes an opening area including a first opening area and a second opening area. The pixels include a first pixel positioned in the first area and a second pixel positioned over a boundary of the first area and the second area. The opening area of the second pixel is smaller than the opening area of the first pixel when opening areas of subpixels of same color are compared. An each imaginary line showing the boundary of the first opening area and the second opening area is a same straight line.

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.