公开(公告)号：US11119374B2

公开(公告)日：2021-09-14

申请号：US16808532

申请日：2020-03-04

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Kentaro Okuyama ,  Tenfu Nakamura

IPC: G02F1/1333 ,  G02F1/1362 ,  G09G3/36

Abstract: According to one embodiment, a display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer contains a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer contains a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.

公开(公告)号：US10714026B2

公开(公告)日：2020-07-14

申请号：US16218555

申请日：2018-12-13

Applicant: Japan Display Inc.

Inventor： Tenfu Nakamura ,  Kentaro Okuyama ,  Tae Kurokawa

IPC: G09G3/34 ,  G02F1/1334 ,  G02F1/13357

Abstract: According to one embodiment, a display device including a plurality of light sources of different luminous colors, a first substrate, a second substrate opposed to the first substrate, a liquid crystal layer interposed between the first and second substrates, to which light from the light sources enters, a display area on which an image is displayed, and a drive circuit configured to control quantity of light from each of the light sources on the basis of an analyzation result of an image signal used to display the image.

公开(公告)号：US12216354B2

公开(公告)日：2025-02-04

申请号：US18522468

申请日：2023-11-29

Applicant: Japan Display Inc.

Inventor： Tenfu Nakamura

IPC: G02F1/13357 ,  F21V8/00 ,  G02F1/137

Abstract: According to one embodiment, a display device includes a display panel displaying an image, a light guide overlapping with the display panel and including a first side surface, and a light source emitting light to the first side surface. The light guide includes a first transparent substrate, a second transparent substrate provided between the display panel and the first transparent substrate, and a first adhesive layer bonding the first transparent substrate to the second transparent substrate. A thickness of the second transparent substrate is different from a thickness of the first transparent substrate.

公开(公告)号：US20240345789A1

公开(公告)日：2024-10-17

申请号：US18614832

申请日：2024-03-25

Applicant: Japan Display Inc.

Inventor： Keiji Tago ,  Muneaki Zako ,  Tenfu Nakamura ,  Toshinori Uehara

IPC: G06F3/14 ,  G06T7/70 ,  G09G3/36

CPC classification number: G06F3/14 ,  G06T7/70 ,  G09G3/36

Abstract: According to one embodiment, a display system includes a display device and a control device. The display device includes a pair of transparent substrates and a polymer dispersed liquid crystal layer held between the pair of transparent substrates. The control device controls display of images in the display device. The display device is transparent to a background on one side when viewed from another side of the pair of transparent substrates, and is transparent to a background on the other side when viewed from the one side of the pair of transparent substrates. The control device detects a position of a person based on a first image, and displays a second image based on the detected position.

公开(公告)号：US12111543B2

公开(公告)日：2024-10-08

申请号：US18366099

申请日：2023-08-07

Applicant: Japan Display Inc.

Inventor： Koichi Igeta ,  Tenfu Nakamura ,  Kentaro Okuyama

IPC: G02F1/1339 ,  G02F1/1333 ,  G02F1/1334 ,  G02F1/1362

CPC classification number: G02F1/1339 ,  G02F1/133305 ,  G02F1/1334 ,  G02F1/136286

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate, a sealing member bonding the first substrate with the second substrate, and a liquid crystal layer between the first substrate and the second substrate. From an aspect, the sealing member includes a first sealing member surrounding a display area including a plurality of pixels, and a second sealing member formed of a same material as the first sealing member and arranged in the display area.

公开(公告)号：US11934074B2

公开(公告)日：2024-03-19

申请号：US18331420

申请日：2023-06-08

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Kentaro Okuyama ,  Tenfu Nakamura

IPC: G02F1/1362 ,  G02F1/1333 ,  G09G3/36

CPC classification number: G02F1/136286 ,  G02F1/133365 ,  G02F1/136213 ,  G09G3/3677 ,  G02F1/136295

Abstract: A display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer includes a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer includes a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.

公开(公告)号：US11906863B2

公开(公告)日：2024-02-20

申请号：US17973724

申请日：2022-10-26

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Kentaro Okuyama ,  Tenfu Nakamura

IPC: G02F1/1362 ,  G02F1/1333 ,  G09G3/36

CPC classification number: G02F1/136286 ,  G02F1/133365 ,  G02F1/136213 ,  G09G3/3677 ,  G02F1/136295

Abstract: A display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer includes a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer includes a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.

公开(公告)号：US11614668B2

公开(公告)日：2023-03-28

申请号：US17741579

申请日：2022-05-11

Applicant: Japan Display Inc.

Inventor： Tenfu Nakamura

IPC: G02F1/1362 ,  G02F1/1368

Abstract: According to one embodiment, a display device including a first transparent substrate, a second transparent substrate, a liquid crystal layer, a third transparent substrate, and a transparent layer having a refractive index lower than a refractive index of the third transparent substrate, wherein the transparent layer includes a plurality of band portions including first to third band portions, a second end portion has a smaller width than a first end portion in band portions, the second end portion of the second band portion has a smaller width than the second end portion of the first band portion, and the second end portion of the third band portion has a smaller width than the second end portion of the first band portion.

公开(公告)号：US11614652B2

公开(公告)日：2023-03-28

申请号：US17505272

申请日：2021-10-19

Applicant: JAPAN DISPLAY INC.

Inventor： Tenfu Nakamura ,  Kojiro Ikeda ,  Kentaro Okuyama

IPC: G02F1/1334 ,  G02F1/1343 ,  G02F1/13357

Abstract: According to one embodiment, a display device comprises substrates, a liquid crystal layer containing stringy polymers, a display area with first and second pixels and a light source. In a spatial frequency spectrum obtained by performing FT on a pattern of the polymers which overlap the pixels with respect to first and second frequency components, when an outline in a plane defined by the components in an area having a value of 75% or more of the maximum value is defined as an evaluation circle, and a value obtained by dividing a length of a major axis of the circle by that of a minor axis is defined as an evaluation value, the evaluation value of the first pixel is greater than that of the second pixel.

公开(公告)号：US11556033B2

公开(公告)日：2023-01-17

申请号：US17467904

申请日：2021-09-07

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Tenfu Nakamura ,  Kentaro Okuyama

IPC: G02F1/1343 ,  G02F1/1334

Abstract: According to one embodiment, a display device includes a first substrate having a first transparent substrate and a pixel electrode, a second substrate having a second transparent substrate, a first common electrode, a second common electrode, and an insulating film disposed between the first common electrode and the second common electrode, and a liquid crystal layer. The first common electrode is disposed between the liquid crystal layer and the insulating film, and includes a first opening and a first electrode portion. The second common electrode is disposed between the insulating film and the second transparent substrate, and includes a second electrode portion overlapping the first opening.