公开(公告)号：US20240402410A1

公开(公告)日：2024-12-05

申请号：US18731537

申请日：2024-06-03

Applicant: Japan Display Inc.

Inventor： Shinichi KOMURA ,  Toshiharu MATSUSHIMA ,  Koichi OKUDA

IPC: F21V8/00 ,  G06F1/16

Abstract: According to one embodiment, an illumination device includes light sources, a distributing light guide element and a light guide. The distributing light guide element has a first side surface, a second side surface and light waveguides extending from the first side surface towards the second side surface. The light guide has a third side surface and a first main surface. Each of the light waveguides have a first end portion into which light emitted from a corresponding light source enters, and a second end portion from which the light propagating in the light waveguide is emitted. The light emitted from the second end portion enters the light guide via the second side surface and the third side surface and is emitted from the first main surface.

公开(公告)号：US20240145488A1

公开(公告)日：2024-05-02

申请号：US18491833

申请日：2023-10-23

Applicant: Japan Display Inc.

Inventor： Shunichi KIMURA ,  Mitsutaka OKITA ,  Toshiharu MATSUSHIMA

IPC: H01L27/12

CPC classification number: H01L27/124

Abstract: A display device includes an array substrate, and a counter substrate facing the array substrate. The array substrate includes a plurality of signal lines arrayed in a first direction in a manner spaced apart from each other, a plurality of scanning lines arrayed in a second direction in a manner spaced apart from each other, a plurality of pixel electrodes provided to respective openings of pixels each surrounded by two adjacent signal lines and two adjacent scanning lines, a plurality of semiconductors provided to the respective pixels, and a common electrode overlapping the pixel electrodes with an insulating film interposed between the common electrode and the pixel electrodes.

公开(公告)号：US20230418118A1

公开(公告)日：2023-12-28

申请号：US18463344

申请日：2023-09-08

Applicant: Japan Display Inc.

Inventor： Shunichi KIMURA ,  Toshiharu MATSUSHIMA

IPC: G02F1/1343 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/137

CPC classification number: G02F1/134363 ,  G02F1/133528 ,  G02F1/133707 ,  G02F1/13706

Abstract: According to one embodiment, a display device includes a first liquid crystal panel, a second liquid crystal panel. Each of the first liquid crystal panel and the second liquid crystal panel includes a first substrate including a common electrode and a pixel electrode, a second substrate, and a liquid crystal layer. The pixel electrode includes a plurality of branch portions extending in a first direction, and a trunk extending in a second direction and connected to the plurality of branch portions. The pixel electrode of the first liquid crystal panel and the pixel electrode of the second liquid crystal panel have a same shape and overlap each other.

公开(公告)号：US20230408873A1

公开(公告)日：2023-12-21

申请号：US18448968

申请日：2023-08-14

Applicant: Japan Display Inc.

Inventor： Shunichi KIMURA ,  Toshiharu MATSUSHIMA

IPC: G02F1/1343 ,  G02F1/1333 ,  G02F1/137 ,  G02F1/01

CPC classification number: G02F1/134309 ,  G02F1/13439 ,  G02F1/133345 ,  G02F1/137 ,  G02F1/0136 ,  G02F2202/22

Abstract: According to one embodiment, a polarization conversion element includes a first wiring and a second wiring, a planar electrode, a control electrode including first strip electrodes, and a first alignment film, a second substrate including a second alignment film, and a liquid crystal layer. An alignment treatment direction of the first alignment film and an alignment treatment direction of the second alignment film are parallel to each other and cross an extension direction of the first strip electrodes. The control electrode overlaps the planar electrode in plan view. An applied voltage of the first wiring is configured to be higher than an applied voltage of the second wiring. The planar electrode is configured to have a voltage gradient.

公开(公告)号：US20230393438A1

公开(公告)日：2023-12-07

申请号：US18328798

申请日：2023-06-05

Applicant: Japan Display Inc.

Inventor： Shunichi KIMURA ,  Toshiharu MATSUSHIMA

IPC: G02F1/1345 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/13

CPC classification number: G02F1/13454 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/133345 ,  G02F1/1323 ,  G02F2203/62 ,  G02F2202/022

Abstract: According to an aspect, a liquid crystal panel includes: a light-transmitting first substrate; a light-transmitting second substrate disposed facing the first substrate with a liquid crystal interposed between the first substrate and the second substrate; a conductive layer provided on the first substrate on a side facing the liquid crystal and comprising wiring lines or electrodes; an insulating layer stacked on the conductive layer on a side facing the liquid crystal; a first electrode layer stacked on the insulating layer on a side facing the liquid crystal; a second electrode layer provided on the second substrate on a side facing the liquid crystal; and a switch capable of opening and closing a coupling path between the first electrode layer and a reset potential. A sheet resistance of the first electrode layer is higher than a sheet resistance of the conductive layer and a sheet resistance of the second electrode layer.

公开(公告)号：US20230384628A1

公开(公告)日：2023-11-30

申请号：US18323475

申请日：2023-05-25

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA ,  Shunichi KIMURA

IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/1343

CPC classification number: G02F1/1323 ,  G02F1/133531 ,  G02F1/134309

Abstract: According to an aspect, an optical element includes: a first polarizing plate having a first absorption axis; a second polarizing plate facing the first polarizing plate and having a second absorption axis; and a first viewing angle control panel placed between the first polarizing plate and the second polarizing plate. The first viewing angle control panel includes: a first substrate; a second substrate facing the first substrate; a liquid crystal layer provided between the first substrate and the second substrate; and a plurality of electrodes provided on at least one of the first substrate and the second substrate to generate a transverse electric field in a predetermined direction. The liquid crystal layer includes liquid crystal molecules with a positive dielectric anisotropy. The liquid crystal molecules have hybrid orientation in a state in which the transverse electric field is not generated.

公开(公告)号：US20230324730A1

公开(公告)日：2023-10-12

申请号：US18336246

申请日：2023-06-16

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA

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

CPC classification number: G02F1/1323 ,  G02F1/13318 ,  G02F1/133528 ,  B60K2370/52 ,  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：US20230305339A1

公开(公告)日：2023-09-28

申请号：US18185411

申请日：2023-03-17

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA

IPC: G02F1/13363 ,  G02B27/01 ,  G02F1/1335

CPC classification number: G02F1/133638 ,  G02B27/0101 ,  G02F1/133528 ,  G02B2027/0118

Abstract: An image output panel includes: a first polarization plate that transmits light polarized in a first direction and blocks light polarized in a direction different from the first direction; a second polarization plate that transmits light polarized in a second direction different from the first direction and blocks light polarized in a direction different from the second direction; a liquid crystal panel that is disposed between the first polarization plate and the second polarization plate; and a retardation plate that changes the polarization direction of light from the first direction to the second direction or from the second direction to the first direction. When a polarization direction of output light that is output from the image output panel is referred to as a first polarization direction, the output light having the first polarization direction is light having the first polarization direction included in incident light from a light source.

公开(公告)号：US20230130531A1

公开(公告)日：2023-04-27

申请号：US18087845

申请日：2022-12-23

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA

IPC: G02F1/01 ,  G02B27/01 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/13363

Abstract: According to one embodiment, a display device including a display panel which displays images, a polarization axis rotation element located between the display panel and an observer, and a polarizer located between the display panel and the polarization axis rotation element, wherein the polarization axis rotation element includes a first area and a second area different from the first area, and an orientation of a first polarization axis of a first polarization component transmitted through the first area is different from an orientation of a second polarization axis of a second polarization component transmitted through the second area.

公开(公告)号：US20230122427A1

公开(公告)日：2023-04-20

申请号：US18084552

申请日：2022-12-20

Applicant: Japan Display Inc.

Inventor： Shunichi KIMURA ,  Toshiharu MATSUSHIMA

IPC: G02F1/01 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1337 ,  G02F1/137

Abstract: According to one embodiment, a polarization conversion element includes a first substrate including a first plane electrode and a first control electrode, a second substrate, and a liquid crystal layer. The first control electrode comprises a first strip electrode, a second strip electrode, a third strip electrode, and a first common electrode. The first strip electrode and the first common electrode are orthogonal to each other, respective extension directions of the first to third strip electrodes are different from each other, and an angle formed by the first strip electrode and the third strip electrode is greater than an angle formed by the first strip electrode and the second strip electrode.