公开(公告)号：US10522103B2

公开(公告)日：2019-12-31

申请号：US15943875

申请日：2018-04-03

Applicant: Japan Display Inc.

Inventor： Tae Kurokawa ,  Mamoru Douyou

IPC: G09G3/36 ,  G02F1/1343 ,  G02F1/1339

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 translucent substrate and the second translucent substrate; at least one light emitter facing at least one of a side surface of the first translucent substrate or a side surface of the second translucent substrate; and a display controller that controls a color of an image overlapping with a background viewed through the first translucent substrate and the second translucent substrate according to a color of the background.

公开(公告)号：US10297231B2

公开(公告)日：2019-05-21

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 ,  G09G3/34 ,  G09G3/36 ,  G09G3/3208

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：US10139675B2

公开(公告)日：2018-11-27

申请号：US15595696

申请日：2017-05-15

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Kazuhiko Sako ,  Tae Kurokawa

IPC: G02F1/1335 ,  G09G3/20 ,  G09G3/34 ,  G09G3/36

Abstract: According to an aspect, a display apparatus includes: an image display panel that displays an image thereon; a planar light source that includes a plurality of light sources and irradiates a plurality of divided areas of the image display panel with light from the back side of the image display panel; and a signal processor that drives the light sources individually based on input signals of the image to control brightness of the individual divided areas. The signal processor performs image display on the image display panel using output signals obtained by lowering brightness of a dark region in the image represented by the input signals.

公开(公告)号：US20180293947A1

公开(公告)日：2018-10-11

申请号：US15943875

申请日：2018-04-03

Applicant: Japan Display Inc.

Inventor： Tae Kurokawa ,  Mamoru Douyou

IPC: G09G3/36 ,  G02F1/1339 ,  G02F1/1343

CPC classification number: G09G3/3611 ,  G02F1/1334 ,  G02F1/133615 ,  G02F1/133621 ,  G02F1/1339 ,  G02F1/1343 ,  G02F2001/133622 ,  G09G2310/0235 ,  G09G2320/0666 ,  G09G2360/16

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 translucent substrate and the second translucent substrate; at least one light emitter facing at least one of a side surface of the first translucent substrate or a side surface of the second translucent substrate; and a display controller that controls a color of an image overlapping with a background viewed through the first translucent substrate and the second translucent substrate according to a color of the background.

公开(公告)号：US20180292690A1

公开(公告)日：2018-10-11

申请号：US15943890

申请日：2018-04-03

Applicant: Japan Display Inc.

Inventor： Tae Kurokawa ,  Kentaro Okuyama ,  Takayuki Imai

IPC: G02F1/1343 ,  G02F1/1334 ,  G09G3/36

CPC classification number: G02F1/1343 ,  G02F1/1334 ,  G02F1/133615 ,  G02F1/133621 ,  G02F2001/133622 ,  G09G3/3413 ,  G09G3/342 ,  G09G2310/0235 ,  G09G2310/024

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 translucent substrate and the second translucent substrate; at least one light emitter facing at least one of a side surface of the first translucent substrate or a side surface of the second translucent substrate; and a display controller that controls transmittance of light passing through the first translucent substrate and the second translucent substrate. A non-light-emitting period in which the at least one light emitter does not emit light is provided between a plurality of light-emitting periods in which the at least one light emitter emits light.

公开(公告)号：US09773470B2

公开(公告)日：2017-09-26

申请号：US14685791

申请日：2015-04-14

Applicant: Japan Display Inc.

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

IPC: G09G5/02 ,  G09G3/36

CPC classification number: G09G5/02 ,  G09G3/3611 ,  G09G2340/0457 ,  G09G2340/06

Abstract: A display device includes: an image display panel including a plurality of pixels each including first to fourth sub-pixels; and a signal processing unit. The signal processing unit determines an expansion coefficient related to the image display panel, obtains output signals of the first to the third sub-pixels based on at least input signals of the first to the third sub-pixels and the expansion coefficient to be output to the first to the third sub-pixels respectively, obtains a fourth sub-pixel correction value as a correction value of an output signal of the fourth sub-pixel based on the input signals of the first to the third sub-pixels and the expansion coefficient, and obtains the output signal of the fourth sub-pixel based on the input signals of the first to third sub-pixels, the expansion coefficient, and the fourth sub-pixel correction value to be output to the fourth sub-pixel.

公开(公告)号：US20150346563A1

公开(公告)日：2015-12-03

申请号：US14717289

申请日：2015-05-20

Applicant: Japan Display Inc.

Inventor： Tae Kurokawa ,  Akira Sakaigawa ,  Masaaki Kabe ,  Kojiro Ikeda ,  Amane Higashi

IPC: G02F1/1343 ,  G02F1/1335

CPC classification number: G02F1/134336 ,  G02F1/133606 ,  G02F2001/133607 ,  G02F2001/134345

Abstract: According to one embodiment, a display device includes a display panel, a light source, a light guide and a prism sheet. The display panel includes a display area in which unit pixels each containing first sub-pixels and second sub-pixels are arranged along a first direction and a second direction. In the display area, the first sub-pixels have a width different from that of the second sub-pixel in at least one of the first direction and the second direction, or each unit pixel contains different numbers of first sub-pixels and second sub-pixels. The prism sheet is interposed between the light guide and the display panel and includes prisms extending along a third direction inclined with respect to the second direction by an acute angle of inclination.

Abstract translation: 根据一个实施例，显示装置包括显示面板，光源，光导和棱镜片。 显示面板包括显示区域，其中包含第一子像素和第二子像素的单位像素沿着第一方向和第二方向排列。 在显示区域中，第一子像素在第一方向和第二方向中的至少一个方向上具有与第二子像素的宽度不同的宽度，或者每个单位像素包含不同数量的第一子像素和第二子像素 -像素。 棱镜片介于光导和显示面板之间，并且包括沿相对于第二方向倾斜倾斜锐角的第三方向延伸的棱镜。

公开(公告)号：US12210251B2

公开(公告)日：2025-01-28

申请号：US18443634

申请日：2024-02-16

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Takeo Koito ,  Tae Kurokawa

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

Abstract: A liquid crystal light control device includes a plurality of liquid crystal cells arranged in a stack. Each of the plurality of liquid crystal cells includes a first substrate and a second substrate opposite the first substrate, a first electrode and a second electrode both of which have a strip pattern arranged on at least one of the first substrate and the second substrate, a first alignment film on the first substrate and a second alignment film on the second substrate, and a liquid crystal layer between the first substrate and the second substrate. The strip pattern is arranged alternately with the first electrode and the second electrode, an alignment direction of the first alignment film is aligned with a direction of extension of the strip pattern, and an alignment direction of the second alignment film is arranged intersecting the alignment direction of the first alignment film.

公开(公告)号：US12174493B2

公开(公告)日：2024-12-24

申请号：US18370035

申请日：2023-09-19

Applicant: Japan Display Inc.

Inventor： Takeo Koito ,  Tae Kurokawa ,  Kojiro Ikeda

IPC: G02F1/1343 ,  G02F1/1347

Abstract: A liquid crystal light control device in an embodiment according to the present invention includes a first liquid crystal cell, and a second liquid crystal cell overlapping the first liquid crystal cell. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate arranged with a first electrode having a strip pattern, a second substrate arranged with a second electrode having a strip pattern, and a liquid crystal layer between the first substrate and the second substrate. A longitudinal direction of the strip pattern of the first electrode and a longitudinal direction of the strip pattern of the second electrode are arranged to intersect at an angle in the range of 45 degrees±10 degrees.

公开(公告)号：US12169336B2

公开(公告)日：2024-12-17

申请号：US18132016

申请日：2023-04-07

Applicant: Japan Display Inc.

Inventor： Takeo Koito ,  Kojiro Ikeda ,  Tae Kurokawa

IPC: G02F1/1339 ,  G02F1/1343

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.