公开(公告)号：US11783742B2

公开(公告)日：2023-10-10

申请号：US17747510

申请日：2022-05-18

Applicant: Japan Display Inc.

Inventor： Tomoyuki Ishihara ,  Tsutomu Harada

IPC: G09G3/00 ,  G02F1/1347 ,  G09G3/36 ,  G09G3/34

CPC classification number: G09G3/03 ,  G02F1/1347 ,  G09G3/3406 ,  G09G3/3607 ,  G02F2203/48 ,  G09G2300/023 ,  G09G2300/0452 ,  G09G2320/0276

Abstract: A display device includes: a first panel comprising pixels; and a second panel having a plate surface provided substantially parallel to a plate surface of the first panel. The plate surface of each of the first and second panels includes a curved surface. When the curved surface is a convex portion and two pixels controlled to transmit the light through the first panel are located in the convex portion, a distance between centers of two predetermined regions to which a blurring processing is applied corresponding to the two pixels is set smaller than a distance between the two the pixels. When the curved surface is a concave portion and the two pixels controlled to transmit the light through the first panel are located in the concave portion, the distance between the centers of the two predetermined regions is set larger than the distance between the two the pixels.

公开(公告)号：US11663959B2

公开(公告)日：2023-05-30

申请号：US17727058

申请日：2022-04-22

Applicant: Japan Display Inc.

Inventor： Kazuhiko Sako ,  Kazunari Tomizawa ,  Tsutomu Harada

IPC: G09G3/32 ,  G09G3/20 ,  G09G3/3258

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G3/3258 ,  G09G2320/0271 ,  G09G2340/06 ,  G09G2360/16

Abstract: According to an aspect, a display device includes a pixel including a first sub-pixel configured to emit light having a peak in a spectrum of red, a second sub-pixel configured to emit light having a peak in a spectrum of green, and a third sub-pixel configured to emit light having a peak in a spectrum of blue. The first sub-pixel, the second sub-pixel, and the third sub-pixel are inorganic light-emitting diodes. A light emission intensity of the second sub-pixel is increased at a predetermined ratio with respect to a light emission intensity of the first sub-pixel when the first sub-pixel emits light at a light emission intensity within a low-luminance range equal to or lower than a predetermined level of luminance.

公开(公告)号：US11605357B2

公开(公告)日：2023-03-14

申请号：US17861924

申请日：2022-07-11

Applicant: Japan Display Inc.

Inventor： Shigenori Aoki ,  Tatsuya Yata ,  Tsutomu Harada

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

Abstract: According to one embodiment, a display device includes a display panel including a first sub display area and a second sub display area, and an illumination device, wherein the illumination device includes a first light source opposed to the first sub display area, a second light source opposed to the second sub display area, and a partition positioned between the first and second light sources and the display panel, and the partition includes a first side surface surrounding the first light source, a second side surface surrounding the second light source, and a connector which connects the first side surface and the second side surface, and the connector is formed of curved surfaces, or two or more flat surfaces, or a combination of curved surfaces and flat surfaces.

公开(公告)号：US11573461B2

公开(公告)日：2023-02-07

申请号：US17846826

申请日：2022-06-22

Applicant: Japan Display Inc.

Inventor： Kazunari Tomizawa ,  Tsutomu Harada

IPC: G02F1/1343 ,  G09G3/36 ,  G02F1/1362 ,  G09G3/20 ,  G02F1/1335

Abstract: According to one embodiment, a display device includes a plurality of red subpixels, a plurality of green subpixels, and a plurality of blue subpixels, wherein, in a first direction, the red subpixel and the green subpixel, the green subpixel and the blue subpixel, and the blue subpixel and the red subpixel are arranged to be adjacent to each other, and in a second direction, the red subpixel and the blue subpixel, the blue subpixel and the green subpixel, and the green subpixel and the red subpixel are arranged to be adjacent to each other, and in the subpixels, as to subpixel columns adjacent to each other, when an image signal of the same gradation is input with respect to the subpixels of same color, brightness of one subpixel column is higher than that of another subpixel column.

公开(公告)号：US20220343868A1

公开(公告)日：2022-10-27

申请号：US17861924

申请日：2022-07-11

Applicant: Japan Display Inc.

Inventor： Shigenori Aoki ,  Tatsuya Yata ,  Tsutomu Harada

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

Abstract: According to one embodiment, a display device includes a display panel including a first sub display area and a second sub display area, and an illumination device, wherein the illumination device includes a first light source opposed to the first sub display area, a second light source opposed to the second sub display area, and a partition positioned between the first and second light sources and the display panel, and the partition includes a first side surface surrounding the first light source, a second side surface surrounding the second light source, and a connector which connects the first side surface and the second side surface, and the connector is formed of curved surfaces, or two or more flat surfaces, or a combination of curved surfaces and flat surfaces.

公开(公告)号：US11294173B2

公开(公告)日：2022-04-05

申请号：US16201330

申请日：2018-11-27

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Shigenori Aoki ,  Koji Yoshida ,  Masayuki Mifune ,  Kazunori Yamaguchi

IPC: G02B27/01 ,  G02F1/13357 ,  G02F1/1335 ,  F21V8/00 ,  G02F1/1333

Abstract: According to one embodiment, a display device includes a display panel, a backlight device including a plurality of light sources, to irradiate light to the display panel, and an optical element provided on an emission side of the display panel and inclined with respect to a direction perpendicular to an optical axis of the display panel.

公开(公告)号：US11175500B2

公开(公告)日：2021-11-16

申请号：US16730237

申请日：2019-12-30

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Kazuhiko Sako

IPC: G02B27/01 ,  G03B21/14 ,  G02B5/04 ,  G03B21/28 ,  H04N9/31 ,  B60K35/00 ,  B60K37/02

Abstract: According to one embodiment, when displaying an image on a display panel, projecting an image which is displayed on the display panel, inclining the image which is projected from the display panel at a predetermined angle of bend, and reflecting the image which is projected from the display panel via a prism and guiding the image to a projection surface, a display device corrects input picture image of the prism based on characteristics contrary to the chromatic aberration characteristics of the prism.

公开(公告)号：US10810956B2

公开(公告)日：2020-10-20

申请号：US16380334

申请日：2019-04-10

Applicant: Japan Display Inc.

Inventor： Masaya Tamaki ,  Tsutomu Harada ,  Hirotaka Hayashi

IPC: G09G3/36

Abstract: According to one embodiment, a display device, includes a first pixel line including a first sub-pixel and a second sub-pixel, a second pixel line including a third sub-pixel and a fourth sub-pixel, and a display driver supplying video signals which cause signal polarities of signal lines adjacent to each other to be opposite to each other, without varying the polarities in one frame period, the video signals having the same polarities as each other being written to the respective sub-pixels of the first pixel line, the video signals having the polarities which are the same as each other and opposite to the polarities of the video signals written to the first pixel line, being written to the respective sub-pixels of the second pixel line.

公开(公告)号：US10591769B2

公开(公告)日：2020-03-17

申请号：US16106537

申请日：2018-08-21

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Daichi Suzuki ,  Kazuhiko Sako ,  Naoyuki Takasaki ,  Kazunari Tomizawa

IPC: G09G3/36 ,  G02F1/13357 ,  G09G3/34 ,  F21V8/00 ,  G02F1/1347 ,  G02F1/1335

Abstract: According to an aspect, a display device includes: a display panel including a display area provided with pixels; an illuminator including an illumination area configured to emit light to the display panel such that the display area is illuminated from one surface side of the display panel; and a liquid crystal dimming panel overlapping the display panel, and including a dimming area configured to be adjusted in transmittance of the light emitted to another surface side of the display panel through the display area. The illumination area includes first segment regions configured such that luminance levels thereof are individually adjusted. The dimming area includes second segment regions configured such that the light transmittances thereof are individually adjusted. Each of the first segment regions overlaps more than one of the second segment regions. Each of the second segment regions overlaps more than one of the pixels.

公开(公告)号：US10453376B2

公开(公告)日：2019-10-22

申请号：US15442995

申请日：2017-02-27

Applicant: Japan Display Inc.

Inventor： Tadafumi Ozaki ,  Kazuhiko Sako ,  Tsutomu Harada ,  Naoyuki Takasaki

IPC: G09G3/20

Abstract: An image display device includes a first pixel data calculator calculating first pixel data for a pixel of attention based on a first error value for a pixel adjacent thereto in the same error diffusion block; a second pixel data calculator calculating second pixel data for the pixel of attention based on a corrected error value for the adjacent pixel; a first error value calculator calculating the first error value based on the first pixel data; a second error value calculator calculating a second error value based on the second pixel data; and a corrected error value calculator calculating the corrected error value by correcting the second error value in a direction in which the second error value approaches the first error value in accordance with whether the pixel of attention is located within a predetermined range from a border among a plurality of error diffusion blocks.