公开(公告)号：US20190180703A1

公开(公告)日：2019-06-13

申请号：US16215001

申请日：2018-12-10

Applicant: Japan Display Inc.

Inventor： Tatsuya YATA ,  Kazunari TOMIZAWA

IPC: G09G3/36

Abstract: According to an aspect, a display device includes: a display unit including a plurality of pixels; and an image processor configured to generate an image signal for displaying an image on the display unit. When the image processor causes the display unit to display the image such that a first pixel region that displays a first color is adjacent to a second pixel region that displays a second color and that has luminance higher than luminance of the first color, the image processor applies gain to an image signal corresponding to a pixel in the second pixel region to make brightness of the second pixel region lower than brightness of the first pixel region.

公开(公告)号：US20180166023A1

公开(公告)日：2018-06-14

申请号：US15823000

申请日：2017-11-27

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA

IPC: G09G3/34 ,  G09G3/36

CPC classification number: G09G3/3406 ,  G09G3/3611 ,  G09G3/3614 ,  G09G3/3622 ,  G09G2310/0224 ,  G09G2320/064 ,  G09G2340/0435 ,  H04N5/23245 ,  H04N5/2351 ,  H04N5/343 ,  H04N5/3456 ,  H04N5/353

Abstract: According to one embodiment, a liquid crystal display apparatus includes an image sensor configured to output an image signal when the image sensor is driven in a first mode and a second mode, and a display device configured to display an image on a display panel based on the image signal. The image sensor is configured to output an image signal every first exposure time when the image sensor is driven in the first mode, and to output an image signal every second exposure time when the image sensor is driven in the second mode. The display device is configured to display an image in accordance with progressive drive when the image sensor is driven in the first mode, and to display an image in accordance with interlace drive when the image sensor is driven in the second mode.

公开(公告)号：US20240129430A1

公开(公告)日：2024-04-18

申请号：US18380435

申请日：2023-10-16

Applicant: JAPAN DISPLAY INC.

Inventor： Kazunari TOMIZAWA ,  Naoshi GOTO ,  Tsutomu HARADA ,  Junji KOBASHI

IPC: H04N7/14 ,  H04N23/57 ,  H04N23/611 ,  H04N23/90

CPC classification number: H04N7/144 ,  H04N23/57 ,  H04N23/611 ,  H04N23/90

Abstract: According to one embodiment, a display device includes a display panel having a display area where an image is displayed, a plurality of cameras provided at positions overlapping with the display area in plan view to capture a user opposed to the display device as a subject, a controller selecting one of the plurality of cameras as a camera to capture the subject, based on positions of eyes of a person included in the image displayed in the display area.

公开(公告)号：US20240105135A1

公开(公告)日：2024-03-28

申请号：US18370990

申请日：2023-09-21

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA ,  Tsutomu HARADA

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G2300/0452 ,  G09G2310/0213 ,  G09G2320/0666

Abstract: A display device includes: a display panel with pixels arranged in a first direction and a second direction; and a light source. Each pixel includes: a first sub-pixel including a color filter for a first color; and a second sub-pixel arranged adjacent to the first sub-pixel in the first direction and including a color filter for a complementary color between a second color and a third color. The light source includes: a first light emitter configured to emit light in the first color; a second light emitter configured to emit light in the second color; and a third light emitter configured to emit light in the third color. One frame period includes: a first light emission period of causing the first and second light emitters to emit light simultaneously; and a second light emission period of causing the first and third light emitters to emit light simultaneously.

公开(公告)号：US20240046898A1

公开(公告)日：2024-02-08

申请号：US18227690

申请日：2023-07-28

Applicant: Japan Display Inc.

Inventor： Tsutomu HARADA ,  Kazunari TOMIZAWA

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G2300/0452 ,  G09G2320/0271 ,  G09G2340/0457

Abstract: Each pair of pixels including two pixels adjacent to each other includes two first sub pixels, two second sub pixels, and two third sub pixels. One of the two first sub pixels and one of the two second sub pixels are included in one of the pair of pixels. The other of the two second sub pixels and one of the two third sub pixels are included in the other of the pair of pixels. The other of the two third sub pixels and the other of the two first sub pixels are disposed across and included in both of the pair of pixels. The drive circuit allocates the gradation data of one pixel to the gradation data of another pixel adjacent to the one pixel and drives the first, second, and third sub pixels included in the other pixel based on the gradation data of the other pixel.

公开(公告)号：US20240036367A1

公开(公告)日：2024-02-01

申请号：US18226022

申请日：2023-07-25

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA

IPC: G02F1/13 ,  H04N13/383 ,  H04N13/398

CPC classification number: G02F1/1323 ,  H04N13/383 ,  H04N13/398

Abstract: A display device includes: a liquid crystal display panel provided with pixels; a light source provided with light emission points and configured to emit light; an acquirer configured to acquire viewpoint information of a user; and a controller configured to control image display based on the viewpoint information. The viewpoint information includes information related to the positions of viewpoints and information indicating an arrangement direction of the viewpoints. The controller performs display drive of at least some or all of pixels positioned on straight lines connecting the light emission points to the viewpoints based on a relative rotation angle between the liquid crystal display panel and the arrangement direction and a relative positional relation between the viewpoints and the light emission points. The ratio of the pitch of the pixels to the pitch of the light emission points is 1:4n or 1:6n. n is a natural number.

公开(公告)号：US20230134431A1

公开(公告)日：2023-05-04

申请号：US18148607

申请日：2022-12-30

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA ,  Tsutomu HARADA

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

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：US20210255520A1

公开(公告)日：2021-08-19

申请号：US17313164

申请日：2021-05-06

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA

IPC: G02F1/1685 ,  G02F1/1676 ,  G02F1/1677 ,  G02F1/1335 ,  G02F1/167

Abstract: According to an aspect, a display device includes: a display substrate; and a filter provided on a display surface side of the display substrate. The filter includes a first sub-pixel area provided with a first color filter, a second sub-pixel area provided with a second color filter, a third sub-pixel area provided with a third color filter, and a colorless fourth sub-pixel area. The display substrate includes a plurality of pixels provided so as to be capable of individually switching each sub-pixel between white, black, and red, and each of the pixels includes a first sub-pixel overlapping the first sub-pixel area, a second sub-pixel overlapping the second sub-pixel area, a third sub-pixel overlapping the third sub-pixel area, and a fourth sub-pixel overlapping the fourth sub-pixel area.

公开(公告)号：US20180033382A1

公开(公告)日：2018-02-01

申请号：US15664211

申请日：2017-07-31

Applicant: Japan Display Inc

Inventor： Kazunari TOMIZAWA

IPC: G09G3/36 ,  G09G3/34

CPC classification number: G09G3/3607 ,  G09G3/2003 ,  G09G3/3413 ,  G09G5/06 ,  G09G5/10 ,  G09G2300/0452 ,  G09G2310/0251 ,  G09G2310/0297 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0285 ,  G09G2320/0653 ,  G09G2320/0666 ,  G09G2320/0686 ,  G09G2340/06 ,  H04N1/60 ,  H04N1/6027 ,  H04N1/6075 ,  H04N9/64 ,  H04N9/643

Abstract: According to one embodiment, a display device includes a unit pixel including a first sub-pixel displaying a first color having a first hue, a second sub-pixel displaying a second color having a first hue, a third sub-pixel displaying a first color having a third hue, and a fourth sub-pixel displaying a second color having a fourth hue. The fourth hue corresponds to a point inside a triangle defined by three points corresponding to the first hue, the second hue, and the third hue. Luminance of the fourth sub-pixel is increased without increasing luminance of the third sub-pixel after luminance of the first sub-pixel reaches predetermined luminance.

公开(公告)号：US20250159382A1

公开(公告)日：2025-05-15

申请号：US18939767

申请日：2024-11-07

Applicant: Japan Display Inc.

Inventor： Kazuhiko SAKO ,  Kazunari TOMIZAWA

IPC: H04N25/76 ,  H04N23/55 ,  H04N23/56 ,  H04N25/13 ,  H04N25/71

Abstract: According to an aspect, an imaging system includes: a display device that includes a display panel on which a plurality of pixels are arranged in a first direction and a second direction intersecting the first direction and a light source configured to emit light to a side surface of the display panel; and an imaging device that is provided with the display panel interposed between the imaging device and a subject and is configured to capture an image of the subject transmitted through the display panel. The display device is configured to have: a first period in which pixel data is written to the pixels; and a second period in which the light source emits the light after the first period. The imaging device is configured to generate imaged data of the subject using exposure data acquired during the first period.