公开(公告)号：US11650464B2

公开(公告)日：2023-05-16

申请号：US17706870

申请日：2022-03-29

Applicant: Japan Display Inc.

Inventor： Takeo Koito ,  Kojiro Ikeda ,  Tae Kurokawa

IPC: G02F1/1339 ,  G02F1/1343

CPC classification number: G02F1/13394 ,  G02F1/13398 ,  G02F1/134309

Abstract: According to an aspect, an optical element includes: a first substrate including a first electrode; a second substrate stacked on the first substrate and including a second electrode; a liquid crystal layer provided between the first substrate and the second substrate; a sealing member extending along an outer periphery of the liquid crystal layer; a first spacer provided on an inner side of the sealing member; and a conductive column provided on an outer side of the sealing member and electrically connecting the first electrode and the second electrode. The conductive column and the first spacer include the same material.

公开(公告)号：US10650757B2

公开(公告)日：2020-05-12

申请号：US15966251

申请日：2018-04-30

Applicant: Japan Display Inc.

Inventor： Tae Kurokawa

IPC: G09G3/36 ,  G02F1/1339 ,  G02F1/133 ,  G02F1/1368 ,  F21V8/00 ,  G02F1/13357 ,  G02F1/1334

Abstract: According to an aspect, a display device includes: a first translucent substrate; a second translucent substrate facing the first translucent substrate; a liquid crystal layer including polymer dispersed liquid crystal sealed between the first and second translucent substrates; at least one light emitter facing at least one of side surfaces of the first and the second translucent substrates; and a display controller. The display controller includes: an external light analyzer setting, in accordance with a received signal of external light information, a second color gamut different from a first color gamut displayable when the external light is not present; and a signal adjuster converting in color a first pixel input signal into a second pixel input signal that reduces a color shift of a second reproduced color in the second color gamut from a first reproduced color in the first color gamut in accordance with the first pixel input signal.

公开(公告)号：US20180061368A1

公开(公告)日：2018-03-01

申请号：US15677326

申请日：2017-08-15

Applicant: Japan Display Inc.

Inventor： Kazuhiko Sako ,  Kazunari Tomizawa ,  Tsutomu Harada ,  Naoyuki Takasaki ,  Tae Kurokawa

IPC: G09G5/10 ,  G06T5/00

CPC classification number: G09G5/10 ,  G06T5/007 ,  G09G3/3208 ,  G09G3/3406 ,  G09G3/342 ,  G09G3/3607 ,  G09G3/3611 ,  G09G2300/0452 ,  G09G2320/0271 ,  G09G2320/0646 ,  G09G2320/066 ,  G09G2340/06 ,  G09G2360/16

Abstract: According to an aspect, a display apparatus includes: an image display panel including a plurality of pixels and displaying an image; and a signal processor generating a second signal by multiplying signal values for a plurality of sub-pixels making up each of the plurality of pixels by a gain, the signal values being included in a first signal that is an input signal of the image. The the signal processor calculates a luminance of each of the plurality of pixels based on the signal values of the sub-pixels included in the respective pixels. The signal processor increases the gain by which the signal values of the sub-pixels of the pixel having a luminance greater than a first luminance threshold are multiplied, in accordance with the luminance of the corresponding pixel.

公开(公告)号：US09324283B2

公开(公告)日：2016-04-26

申请号：US14086476

申请日：2013-11-21

Applicant: Japan Display Inc.

Inventor： Masaaki Kabe ,  Toshiyuki Nagatsuma ,  Amane Higashi ,  Kojiro Ikeda ,  Tae Kurokawa ,  Masashi Mitsui ,  Hiroki Uchiyama ,  Hirokazu Tatsuno ,  Fumitaka Goto ,  Akira Sakaigawa

IPC: G09G3/34 ,  G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3607 ,  G09G3/2003 ,  G09G3/3648 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2340/06 ,  G09G2360/16

Abstract: According to an aspect, a display device includes a first sub-pixel, a second sub-pixel, a third sub-pixel; and a fourth sub-pixel. A signal obtained based on at least an input signal for the first sub-pixel and an extension coefficient is supplied to the first sub-pixel. A signal obtained based on at least an input signal for the second sub-pixel and the extension coefficient is supplied to the second sub-pixel. A signal obtained based on at least an input signal for the third sub-pixel and the extension coefficient is supplied to the third sub-pixel. A signal obtained based on at least the input signal for the first sub-pixel, the input signal for the second sub-pixel, the input signal for the third sub-pixel, and the extension coefficient is supplied to the fourth sub-pixel. The extension coefficient varies based on at least a saturation of the input signals.

Abstract translation: 根据一个方面，显示装置包括第一子像素，第二子像素，第三子像素; 和第四子像素。 至少基于第一子像素的输入信号获得的信号和扩展系数被提供给第一子像素。 至少基于第二子像素的输入信号获得的信号和扩展系数被提供给第二子像素。 至少基于第三子像素的输入信号获得的信号和扩展系数被提供给第三子像素。 基于至少基于第一子像素的输入信号，第二子像素的输入信号，第三子像素的输入信号和扩展系数获得的信号被提供给第四子像素。 扩展系数至少基于输入信号的饱和度而变化。

公开(公告)号：US20150109350A1

公开(公告)日：2015-04-23

申请号：US14505145

申请日：2014-10-02

Applicant: Japan Display Inc.

Inventor： Fumitaka Gotoh ,  Tsutomu Harada ,  Masaaki Kabe ,  Tae Kurokawa ,  Kojiro Ikeda ,  Toshiyuki Nagatsuma ,  Akira Sakaigawa ,  Naoyuki Takasaki ,  Amane Higashi

IPC: G09G3/36 ,  G09G5/10

CPC classification number: G09G3/3607 ,  G09G5/10 ,  G09G2300/0452

Abstract: A display device includes: an image display unit that includes a plurality of main pixels in an image display region, the image display unit including sub-pixels; a light source that irradiates the image display region; a light source control unit that controls luminance of the light source; and a color information correction processing unit that corrects first color information that is obtained based on the luminance of the light source and an input video signal to second color information, when color information of at least one of a red pixel, a green pixel, and a blue pixel included in the first color information exceeds a predetermined threshold, the second information is corrected by degenerating color information of the red pixel, the green pixel, and the blue pixel, and by adding color information of the white pixel included in the first color information based on the degenerated color information.

Abstract translation: 显示装置包括：图像显示单元，其包括图像显示区域中的多个主要像素，所述图像显示单元包括子像素; 照射图像显示区域的光源; 光源控制单元，其控制所述光源的亮度; 以及颜色信息校正处理单元，当将红色像素，绿色像素以及绿色像素中的至少一种的颜色信息作为颜色信息时，将基于光源的亮度和输入视频信号的亮度获得的第一颜色信息校正为第二颜色信息 包括在第一颜色信息中的蓝色像素超过预定阈值，通过对红色像素，绿色像素和蓝色像素的颜色信息进行退化来校正第二信息，并且通过将包括在第一颜色信息中的第一颜色信息中的白色像素的颜色信息相加 基于退化颜色信息的颜色信息。

公开(公告)号：US12038655B2

公开(公告)日：2024-07-16

申请号：US18222154

申请日：2023-07-14

Applicant: Japan Display Inc.

Inventor： Tae Kurokawa ,  Takeo Koito ,  Kojiro Ikeda

IPC: G02F1/1343 ,  G02F1/1347

CPC classification number: G02F1/13439 ,  G02F1/1347

Abstract: An optical element includes at least two liquid crystal cells. The at least two liquid crystal cells include a first substrate on which a first transparent electrode and a second transparent electrode are alternately and repeatedly arranged in a first direction, a second substrate on which a third transparent electrode and a fourth transparent electrode are alternately and repeatedly arranged in a second direction intersecting the first direction, and a liquid crystal layer between the first substrate and the second substrate. The second transparent electrode comprises a first bent portion bent in the first direction. The fourth transparent electrode comprises a second bent portion bent in the second direction.

公开(公告)号：US11940710B2

公开(公告)日：2024-03-26

申请号：US18299083

申请日：2023-04-12

Applicant: Japan Display Inc.

Inventor： Tae Kurokawa ,  Takeo Koito ,  Masashi Mitsui

IPC: G02F1/29 ,  G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/29 ,  G02F1/133738 ,  G02F1/133742 ,  G02F1/134309 ,  G02F2201/122 ,  G02F2203/07

Abstract: According to one embodiment, a light control device includes a first liquid crystal cell including a first liquid crystal layer, a second liquid crystal cell including a second liquid crystal layer, and a polarization conversion element. The first liquid crystal layer and the second liquid crystal layer each includes a first region which scatters a first polarized component and transmits a second polarized component and a second region which transmits the first polarized component and scatters the second polarized component. The polarization conversion element overlaps the first region and the second region, converts the first polarized component into the second polarized component, and converts the second polarized component into the first polarized component.

公开(公告)号：US11934082B2

公开(公告)日：2024-03-19

申请号：US17659394

申请日：2022-04-15

Applicant: Japan Display Inc.

Inventor： Takeo Koito ,  Masashi Mitsui ,  Tae Kurokawa

IPC: G02F1/29 ,  G02F1/1343 ,  G02F1/1347

CPC classification number: G02F1/29 ,  G02F1/134309 ,  G02F1/13471 ,  G02F2202/28

Abstract: According to one embodiment, a light control device includes a first substrate including a plurality of first control electrodes disposed in an effective area, and a plurality of feed lines disposed in a peripheral area, a second substrate, and a first liquid crystal layer. The first control electrodes are transparent electrodes. Each of the first control electrodes includes, in the effective area, first segments crossing a first direction at a first angle, second segments crossing the first direction at a second angle, and third segments crossing the first direction at a third angle. The first control electrode is electrically connected to the feed line. The first to third angles are different from each other.

公开(公告)号：US11921384B2

公开(公告)日：2024-03-05

申请号：US17881610

申请日：2022-08-05

Applicant: Japan Display Inc.

Inventor： Takeo Koito ,  Tae Kurokawa ,  Masashi Mitsui

IPC: G02F1/1347 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/1343 ,  G02F1/137 ,  G02F1/29

CPC classification number: G02F1/1347 ,  G02F1/133528 ,  G02F1/13362 ,  G02F1/134309 ,  G02F1/13756 ,  G02F1/29

Abstract: According to one embodiment, a light control device includes a first liquid crystal cell, a second liquid crystal cell, and a polarization conversion element disposed between the first liquid crystal cell and the second liquid crystal cell. One substrate of each of the first liquid crystal cell and the second liquid crystal cell includes an insulating substrate, and first to fourth electrodes arranged on the insulating substrate and formed in a strip shape. The electric potential difference between the first electrode and the second electrode, the electric potential difference between the second electrode and the third electrode, and the electric potential difference between the third electrode and the fourth electrode are different from each other.

公开(公告)号：US11378836B2

公开(公告)日：2022-07-05

申请号：US17092808

申请日：2020-11-09

Applicant: Japan Display Inc.

Inventor： Tae Kurokawa ,  Kentaro Okuyama

IPC: G02F1/1335 ,  G02F1/1334 ,  G02F1/13357 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1345

Abstract: According to one embodiment, a display device includes a first substrate including a light-shielding layer and a conductive line having a first side surface and a second side surface on a side opposite to the first side surface, a second substrate opposed to the first substrate, a polymer dispersed liquid crystal layer held between the first substrate and the second substrate, and including a polymer and liquid crystal molecules, and a light-emitting element opposed to an end portion of at least one of the first substrate and the second substrate, wherein the first side surface is closer to the light-emitting element than the second side surface, and the light-shielding layer covers at least the first side surface of the conductive line.