公开(公告)号：US11686978B2

公开(公告)日：2023-06-27

申请号：US17953437

申请日：2022-09-27

Applicant: Japan Display Inc.

Inventor： Shunichi Kimura ,  Toshiharu Matsushima

IPC: G02F1/1337 ,  G02F1/1368 ,  G02F1/1343 ,  G02F1/1347 ,  G02F1/1335

CPC classification number: G02F1/133757 ,  G02F1/1347 ,  G02F1/1368 ,  G02F1/133504 ,  G02F1/133519 ,  G02F1/133528 ,  G02F1/134309

Abstract: According to one embodiment, a display device includes an illumination device, a display panel, a first polarizer attached to the display panel, a second polarizer attached to the display panel, and a transmissive diffraction grating provided in a location between the illumination device and the first polarizer or in a location facing the second polarizer. The diffraction grating includes a third substrate, a fourth substrate, and a second liquid crystal layer provided between the third substrate and the fourth substrate, containing a plurality of liquid crystal molecules, and cured in a state where alignment directions of the liquid crystal molecules are fixed.

公开(公告)号：US11681175B2

公开(公告)日：2023-06-20

申请号：US17699810

申请日：2022-03-21

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/1333 ,  G02F1/1343 ,  G06F3/044

CPC classification number: G02F1/13338 ,  G02F1/134363 ,  G06F3/044 ,  G06F3/0445 ,  G02F1/134318 ,  G02F1/134381

Abstract: Display device is provided and includes first substrate; first and second lines; first electrode on first substrate; insulating film on first electrode; second electrode including connection electrode arranged in parallel with second lines and comb electrodes connected to the connection electrode; second substrate facing first substrate; liquid crystal layer provided between first and second substrates; and light shielding portion extending along extending direction of first lines, wherein in plain view, part of comb electrodes arranged at end of comb electrodes and part of first electrode overlaps with light shielding portion in the same area.

公开(公告)号：US11635659B2

公开(公告)日：2023-04-25

申请号：US17728230

申请日：2022-04-25

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/1337 ,  G02F1/1343

Abstract: According to one embodiment, a display device includes a first substrate with a first alignment film, a second substrate with a second alignment film, and a liquid crystal layer interposed therebetween. The first substrate has first and second electrodes. An initial alignment direction of liquid crystal molecules of the liquid crystal layer is parallel to a first direction or a direction orthogonal to the first direction. The second electrode includes comblike electrodes extending parallel to the first direction and a connecting portion which connects the comblike electrodes. The connecting portion includes a projection which projects in a second direction more than an outermost comblike electrode.

公开(公告)号：US11536992B2

公开(公告)日：2022-12-27

申请号：US17241084

申请日：2021-04-27

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/13 ,  G02F1/133 ,  G02F1/1335 ,  B60K35/00

Abstract: According to one embodiment, a display system includes an external light sensor, a display panel, a viewing angle control panel including a liquid crystal layer containing liquid crystal molecules twist-aligned, configured such that a drive voltage applied to the liquid crystal layer is controlled based on an external light intensity detected by the external light sensor, and a polarization axis rotation element disposed between the viewing angle control panel and the display panel. The drive voltage when the external light intensity is less than a threshold value is greater than the drive voltage when the external light intensity is greater or equal to than the threshold value.

公开(公告)号：US10885857B2

公开(公告)日：2021-01-05

申请号：US15955733

申请日：2018-04-18

Applicant: Japan Display Inc.

Inventor： Shunichi Kimura ,  Toshiharu Matsushima

IPC: G09G3/36 ,  G02F1/1343 ,  G02F1/133 ,  G02F1/13357 ,  G09G3/34

Abstract: According to one embodiment, a first substrate includes a pixel electrode, a common electrode and a sub-pixel area including a first area and a second area. The first area includes an area where the pixel electrode exists, an axial area extending in a second direction, and branch areas extending from the axial area to a first side of the first direction. The second area includes an area where the pixel electrode does not exist, and a first gap area extending in the first direction, at a position between the adjacent branch areas. A maximum value of a first voltage applied to the pixel electrode in a first mode is higher than a maximum value of a second voltage applied to the pixel electrode in a second mode.

公开(公告)号：US10725349B2

公开(公告)日：2020-07-28

申请号：US16244594

申请日：2019-01-10

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/1343

Abstract: According to an aspect, a liquid-crystal display device includes a first substrate, a second substrate, and a liquid-crystal layer. The first substrate includes a first electrode and a second electrode, and one of the first electrode and the second electrode is a pixel electrode provide, the first electrode includes an electrode base portion extending in a first direction and comb tooth portions extending in a second direction and protruding in a comb teeth shape from the electrode base portion with a predetermined distance interposed therebetween, and adjacent comb tooth portions include adjacent comb tooth portions having a relation in which a first long side of one comb tooth portion closest to a boundary between pixels is not parallel to a first long side of the other comb tooth portion.

公开(公告)号：US10684518B2

公开(公告)日：2020-06-16

申请号：US16391412

申请日：2019-04-23

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/1343 ,  G02F1/1335

Abstract: In one embodiment, a liquid crystal display device comprises a first and second substrates and a liquid crystal layer. The first substrate comprises subpixels, first and second common electrodes, and a pixel electrode. Each of the subpixels comprises an axial area, branch areas, and gap areas. The second edge comprises concave portions. The axial and branch areas are areas in which the second common electrode is not present, and the pixel electrode is present. The gap areas are areas in which the second common electrode is present. The concave portions are areas in which the second common electrode and the pixel electrode are not present, and the first common electrode is present.

公开(公告)号：US10473988B2

公开(公告)日：2019-11-12

申请号：US15843532

申请日：2017-12-15

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/1343

Abstract: A display device includes an electrode layer and a liquid crystal layer. The electrode layer has a first electrode and a second electrode. The second electrode is opposed to the first electrode and having a plurality of openings extending in a same extending direction. The liquid crystal layer is disposed on the electrode layer. The liquid crystal molecules of the liquid crystal layer in a region in proximity to one side of the opening and liquid crystal molecules of the liquid crystal layer in a region in proximity to another side of the opening, the sides of the opening being opposed to each other in a width direction of the opening, are rotated in opposite directions from each other and aligned.

公开(公告)号：US20190250471A1

公开(公告)日：2019-08-15

申请号：US16391412

申请日：2019-04-23

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/1343 ,  G02F1/1335

CPC classification number: G02F1/134336 ,  G02F1/133514 ,  G02F1/134309 ,  G02F2001/134345 ,  G02F2001/134372

Abstract: In one embodiment, a liquid crystal display device comprises a first and second substrates and a liquid crystal layer. The first substrate comprises subpixels, first and second common electrodes, and a pixel electrode. Each of the subpixels comprises an axial area, branch areas, and gap areas. The second edge comprises concave portions. The axial and branch areas are areas in which the second common electrode is not present, and the pixel electrode is present. The gap areas are areas in which the second common electrode is present. The concave portions are areas in which the second common electrode and the pixel electrode are not present, and the first common electrode is present.

公开(公告)号：US20190204688A1

公开(公告)日：2019-07-04

申请号：US16288746

申请日：2019-02-28

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

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

CPC classification number: G02F1/133707 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/1337 ,  G02F1/134309 ,  G02F1/134363 ,  G02F1/13439 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/133738 ,  G02F2001/134372 ,  G02F2201/124

Abstract: According to one embodiment, a display device includes a first substrate with a first alignment film, a second substrate with a second alignment film, and a liquid crystal layer interposed therebetween. The first substrate has first and second electrodes. An initial alignment direction of liquid crystal molecules of the liquid crystal layer is parallel to a first direction or a direction orthogonal to the first direction. The second electrode includes comblike electrodes extending parallel to the first direction and a connecting portion which connects the comblike electrodes. The connecting portion includes a projection which projects in a second direction more than an outermost comblike electrode.