公开(公告)号：US20240223743A1

公开(公告)日：2024-07-04

申请号：US18396299

申请日：2023-12-26

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA ,  Akira HASEGAWA ,  Toshinori UEHARA

IPC: H04N13/383 ,  H04N13/31 ,  H04N13/327

CPC classification number: H04N13/383 ,  H04N13/31 ,  H04N13/327

Abstract: According to an aspect, a display device includes: a display that includes a plurality of pixels arranged in a predetermined direction and is configured to output an image; an acquirer configured to periodically acquire information related to a sight line of a user visually recognizing the image; a storage configured to store image group data provided from an external information processing device based on the information at a first time point; and a display controller configured to select display data corresponding to the sight line from among the image group data based on the information at a second time point later than the first time point and cause the display to display the display data.

公开(公告)号：US20240062707A1

公开(公告)日：2024-02-22

申请号：US18230459

申请日：2023-08-04

Applicant: Japan Display Inc.

Inventor： Tsutomu HARADA ,  Kazunari TOMIZAWA

IPC: G09G3/32 ,  G09G3/3225

CPC classification number: G09G3/32 ,  G09G3/3225 ,  G09G2320/0271 ,  G09G2320/0242

Abstract: A display device includes a plurality of light emitting devices included in a pixel, and a control circuit configured to define each of a plurality of subframe periods included in a frame period during which a frame image is displayed as one of an emission period in which the light emitting device is in an emission state and a non-emission period in which the light emitting device is in a non-emission state, and to control emission of the light emitting device, based on a gradation value of the pixel.

公开(公告)号：US20220068196A1

公开(公告)日：2022-03-03

申请号：US17412254

申请日：2021-08-26

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA

IPC: G09G3/32

Abstract: A driving method of a light emitting device includes that the light emitting device has a plurality of pixels and performs gray-scale display in sections of the sub-frame periods in which one frame period for displaying one frame image is divided into a plurality of sub-frame periods. The driving method includes writing analog gray-scale data to the plurality of pixels to display analog gray-scales in one sub-frame period of the plurality of sub-frame periods, and writing first digital gray-scale data to the plurality of pixels to display first digital gray-scales in a sub-frame period of the same length as the one sub-frame period, and in a sub-frame period different from the one sub-frame period.

公开(公告)号：US20210174753A1

公开(公告)日：2021-06-10

申请号：US17181276

申请日：2021-02-22

Applicant: Japan Display Inc.

Inventor： Tsutomu HARADA ,  Kazunari TOMIZAWA ,  Kazunori YAMAGUCHI

IPC: G09G3/34 ,  H01L27/32

Abstract: According to one embodiment, a display device includes a display panel on which a plurality of pixels having a light emitting element is disposed and a display control unit configured to display an image on the display panel by causing each of the plurality of pixels to emit light based on a pixel signal that defines luminance of each of the plurality of pixels. The display control unit is configured to display the image by decreasing luminance of a first pixel which is a protection target pixel of the plurality of pixels and increasing luminance of a second pixel disposed around the first pixel.

公开(公告)号：US20190287471A1

公开(公告)日：2019-09-19

申请号：US16355020

申请日：2019-03-15

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA

IPC: G09G3/36 ,  G09G3/34

Abstract: According to one embodiment, a display device includes a display panel and a conversion circuit. The display panel is with a first pixel including subpixels of red, first green which is tinged red as compared to a reference green, and blue, and a second pixel including subpixels of red, second green which is tinged blue as compared to the reference green, and blue, where the first pixel and the second pixel are arranged alternately. The conversion circuit is configured to generate a four primary color image of red, first green, second green, and blue from a three primary color image of red, reference green, and blue and to perform rendering the first image and the second image from the four primary color image.

公开(公告)号：US20190146268A1

公开(公告)日：2019-05-16

申请号：US16187000

申请日：2018-11-12

Applicant: Japan Display Inc.

Inventor： Tatsuya YATA ,  Kazunari TOMIZAWA

IPC: G02F1/1335 ,  G02F1/1343

Abstract: According to an aspect, a display device includes: first to fourth sub-pixels including respective first to fourth color filters transmitting light having a spectrum peak falling on respective spectra of reddish green, bluish green, red, and blue. The first to fourth sub-pixels each include a reflective electrode reflecting light transmitted through the corresponding color filter. The first sub-pixel is adjacent to the third sub-pixel in a first direction. The second sub-pixel is adjacent to the fourth sub-pixel in the first direction. The first sub-pixel is adjacent to the second sub-pixel in a second direction. The first sub-pixel is not adjacent to the third sub-pixel in the second direction. The first sub-pixel is not adjacent to the fourth sub-pixel in the second direction. The second sub-pixel is not adjacent to the third sub-pixel in the second direction. The second sub-pixel is not adjacent to the fourth sub-pixel in the second direction.

公开(公告)号：US20190051255A1

公开(公告)日：2019-02-14

申请号：US16018102

申请日：2018-06-26

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA

IPC: G09G3/36 ,  H04N9/64

Abstract: A display device includes a display panel arranged with first subpixel, second subpixel and third subpixel, the second subpixel is arranged adjacent in the same row direction as the first subpixel, the third subpixel is arranged in a row adjacent to the row direction, and the third subpixel is arranged between the first subpixel and the second subpixel, and an image processing circuit converts first input image signal corresponding to the first subpixel, second input image signal corresponding to the second subpixel, third input image signal corresponding to the third subpixel, and fourth input image signal to a signal for driving a subpixel of the display panel, the fourth input image signal corresponds to any one subpixel among the first subpixel, the second subpixel and the third subpixel, and the fourth input image signal is input between the first input image signal and the second input image signal.

公开(公告)号：US20180213211A1

公开(公告)日：2018-07-26

申请号：US15872488

申请日：2018-01-16

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA ,  Yoshihiko KUROKI

IPC: H04N13/332

CPC classification number: H04N13/305 ,  G02B5/045 ,  G02B27/2214 ,  H04N13/31 ,  H04N13/324 ,  H04N13/346

Abstract: According to one embodiment, a display device includes a display unit configured to display an image for right eye and an image for left eye. Resolution of the display unit is P pixels or more per inch. Pixel shift of the image for right eye and the image for left eye displayed on the display unit is 0.021×P pixels or less and one pixel or more.

公开(公告)号：US20230298512A1

公开(公告)日：2023-09-21

申请号：US18137817

申请日：2023-04-21

Applicant: Japan Display Inc.

Inventor： Kazuhiko SAKO ,  Kazunari TOMIZAWA ,  Tsutomu HARADA

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G3/3258 ,  G09G2320/0271 ,  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：US20230039923A1

公开(公告)日：2023-02-09

申请号：US17972904

申请日：2022-10-25

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA ,  Tsutomu HARADA ,  Junji KOBASHI ,  Shinichiro OKA ,  Yosuke HYODO

IPC: G02F1/1347 ,  G02F1/1335

Abstract: According to one embodiment, in a display device a first panel includes a first polarizing plate, a second polarizing plate, and a first liquid crystal panel interposed between the first polarizing plate and the second polarizing plate, a second panel includes a third polarizing plate, a fourth polarizing plate, and a second liquid crystal panel interposed between the third polarizing plate and the fourth polarizing plat, and a polarizing plate, which is located second from a surface close to an illumination device and a surface closest to an observer, has an extinction ratio that is lower than that of each of the other polarizing plates.