公开(公告)号：US20240323543A1

公开(公告)日：2024-09-26

申请号：US18607801

申请日：2024-03-18

Applicant: Japan Display Inc.

Inventor： Tomoyuki ISHIHARA ,  Tomoya TEZEN ,  Daisuke HAMANO ,  Naoyuki ASANO ,  Kaoru ITO ,  Akihiko FUJISAWA

IPC: H04N23/72 ,  H01L27/146 ,  H04N5/262 ,  H04N5/265 ,  H04N23/71 ,  H04N23/74 ,  H04N23/76

CPC classification number: H04N23/72 ,  H01L27/14645 ,  H04N5/2628 ,  H04N5/265 ,  H04N23/71 ,  H04N23/74 ,  H04N23/76

Abstract: According to an aspect, a detection device includes: a planar detection device including photodetection elements arranged in a planar configuration; a light-transmitting placement substrate to place thereon objects to be detected; and light sources provided correspondingly to the photodetection elements. The planar detection device, the placement substrate, and the light sources are arranged in the order as listed. The light sources include first light sources that are separately arranged and second light sources that are arranged adjacent to the respective first light sources. The detection device has: a first period in which the first light sources are on and the second light sources are off; and a second period in which the second light sources are on and the first light sources are off. The detection device is configured to combine a first image detected in the first period with a second image detected in the second period.

公开(公告)号：US20240005886A1

公开(公告)日：2024-01-04

申请号：US18214667

申请日：2023-06-27

Applicant: Japan Display Inc.

Inventor： Junji KOBASHI ,  Tomoyuki ISHIHARA

IPC: G09G3/36 ,  G09G3/34

CPC classification number: G09G3/3607 ,  G09G3/3426 ,  G09G2360/16 ,  G09G2320/0233 ,  G09G2320/0646 ,  G02F1/133601

Abstract: According to an aspect, a display device includes: a display panel having a display area provided with pixels; a dimming panel disposed so as to face the display panel and having a dimming area provided with dimming pixels; and a light source configured to emit light that travels from the dimming panel toward the display panel. When a pixel among the pixels is controlled to be lit up in white, blurring processing is applied so as to cause more than one of the dimming pixels including a dimming pixel overlapping the pixel to transmit light, and light from the light source is transmitted through the blurring area and the pixel. The blurring area is determined based on a positional misalignment with respect to a predetermined positional relation between the display area and the dimming area.

公开(公告)号：US20230386408A1

公开(公告)日：2023-11-30

申请号：US18234041

申请日：2023-08-15

Applicant: Japan Display Inc.

Inventor： Tomoyuki ISHIHARA

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2007 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0626

Abstract: A display apparatus includes a light-emitting element, a first pixel circuit and a second pixel circuit coupled to the light-emitting element, a first drive transistor included in the first pixel circuit and configured to supply a first drive current to the light-emitting element, a second drive transistor included in the second pixel circuit and configured to supply a second drive current to the light-emitting element, and a drive circuit configured to supply a first video signal to the first drive transistor and to supply a second video signal to the second drive transistor. The first drive transistor is supplied with the first video signal and the second drive transistor is supplied with the second video signal in a same writing period.

公开(公告)号：US20220114977A1

公开(公告)日：2022-04-14

申请号：US17495035

申请日：2021-10-06

Applicant: Japan Display Inc.

Inventor： Tomoyuki ISHIHARA

IPC: G09G3/36

Abstract: According to an aspect, a display device includes a display panel configured to display an image; and a light source configured to emit light to the display panel. The light source includes a first light source configured to emit light in a first primary color, a second light source configured to emit light in a second primary color, and a third light source configured to emit light in a third primary color. A frame period that is a display period of one frame image includes a predetermined number of subframe periods, the predetermined number is four or greater, and color reproduction of the one frame image is performed by a combination of colors that are output in the predetermined number of subframe periods. An output order of colors of the subframe periods is an order of colors in a clockwise direction or in a counterclockwise direction in a hue circle.

公开(公告)号：US20250146928A1

公开(公告)日：2025-05-08

申请号：US19018010

申请日：2025-01-13

Applicant: Japan Display Inc.

Inventor： Tomoyuki ISHIHARA ,  Akihiko FUJISAWA ,  Chikyu NAKAOKA ,  Tsutomu HARADA ,  Kaoru ITO ,  Norio MAMBA

IPC: G01N21/17

Abstract: According to an aspect, a detection device includes: a plurality of photodiodes provided on a substrate; a plurality of light emitters arranged so as to face the photodiodes; and a collimating lens that is located between the photodiodes and the light emitters and is configured to emit parallel light toward the photodiodes. At least one of the light emitters is configured to be brought into a lit state and other of the light emitters are configured to be brought into an unlit state. The collimating lens is configured to emit the parallel light at a different emission angle depending on a position of the light emitter in the lit state.

公开(公告)号：US20240430583A1

公开(公告)日：2024-12-26

申请号：US18752045

申请日：2024-06-24

Applicant: Japan Display Inc.

Inventor： Tomoyuki ISHIHARA

IPC: H04N23/84 ,  G06V20/69 ,  H04N23/56 ,  H04N23/74 ,  H04N23/76

Abstract: A detection device includes a light source, and an optical sensor comprising a plurality of photodiodes configured to output pixel data corresponding to a light intensity irradiating the photodiodes. The optical sensor is configured to capture a first image containing a plurality of pieces of first pixel data and a second image that contains a plurality of pieces of second pixel data and is more sensitive than the first image, the second pixel data having a gradation equal to or smaller than a predetermined threshold is selected in the second image, the first pixel data in an area corresponding to a deselected second pixel data is selected in the first image, and a composite image is generated based on the selected second pixel data and the selected first pixel data.

公开(公告)号：US20240194155A1

公开(公告)日：2024-06-13

申请号：US18584117

申请日：2024-02-22

Applicant: Japan Display Inc.

Inventor： Tomoyuki ISHIHARA ,  Tomohide OOHIRA ,  Yasuhiko YAMAGISHI

IPC: G09G3/34 ,  G09G3/36

CPC classification number: G09G3/34 ,  G09G3/36 ,  G09G2300/023 ,  G09G2320/0233 ,  G09G2320/028 ,  G09G2320/0626

Abstract: A display device includes: a display panel with pixels; a dimming panel with dimming pixels; and a light source. When a pixel is controlled to be lit in white and a predetermined condition is satisfied, a blurring region is formed, and light from the light source is transmitted through the blurring region and the pixel. When a pixel is controlled to be lit up in white and the predetermined condition is not satisfied, the blurring region is not formed, the dimming pixel overlapping the pixel on a straight line along a direction in which the display panel faces the dimming panel is controlled to transmit light, and light from the light source is transmitted through the dimming pixel and the pixel. The predetermined condition is satisfied when the pixel controlled to be lit in white is at a predetermined distance or farther from an outer edge of a display area.

公开(公告)号：US20230335070A1

公开(公告)日：2023-10-19

申请号：US18133041

申请日：2023-04-11

Applicant: Japan Display Inc.

Inventor： Tomoyuki ISHIHARA ,  Tomohide OOHIRA ,  Yasuhiko YAMAGISHI

IPC: G09G3/34

CPC classification number: G09G3/3426 ,  G09G2320/0626

Abstract: A display device includes: a display panel with pixels; a dimming panel with dimming pixels; and a light source. When a pixel is controlled to be lit in white and a predetermined condition is satisfied, a blurring region is formed, and light from the light source is transmitted through the blurring region and the pixel. When a pixel is controlled to be lit up in white and the predetermined condition is not satisfied, the blurring region is not formed, the dimming pixel overlapping the pixel on a straight line along a direction in which the display panel faces the dimming panel is controlled to transmit light, and light from the light source is transmitted through the dimming pixel and the pixel. The predetermined condition is satisfied when the pixel controlled to be lit in white is at a predetermined distance or farther from an outer edge of a display area.

公开(公告)号：US20230116488A1

公开(公告)日：2023-04-13

申请号：US17959696

申请日：2022-10-04

Applicant: Japan Display Inc.

Inventor： Tomoyuki ISHIHARA ,  Tsutomu HARADA

IPC: G09G3/36 ,  G09G3/34 ,  G06F3/01

Abstract: According to an aspect, a display device includes: a first panel including pixels; a second panel including light control pixels; and a light source. When any of the pixels is controlled to transmit light in accordance with an input image signal, blurring processing is applied, a blurring area is formed, and light from the light source transmits through the blurring area and the pixel controlled to transmit light and is emitted from the first panel. When a straight line connecting a user viewpoint and the pixel controlled to transmit light has an angle relative to a normal to the first panel, a center of the blurring area is at a position shifted to a side opposite to a reference normal side relative to the normal to the first panel passing through a center of the pixel. The reference normal is a normal to the first panel passing through the viewpoint.

公开(公告)号：US20230114708A1

公开(公告)日：2023-04-13

申请号：US17960261

申请日：2022-10-05

Applicant: Japan Display Inc.

Inventor： Tsutomu HARADA ,  Tomoyuki ISHIHARA

IPC: G09G3/34 ,  G06F3/01 ,  G09G3/36

Abstract: According to an aspect, a display device includes: a first panel; a second panel disposed opposing one surface of the first panel; a light source configured to emit light to the other surface of the first panel; and an acquirer configured to acquire user information including information indicating at least one of a position of an eye and a position of a head of a user facing the second panel. The first panel includes light control pixels. The second panel includes pixels. Blurring processing is applied by which the light control pixel positioned around a pixel controlled to transmit light in accordance with an input image signal is caused to transmit light. A blurring area including the light control pixel to which the blurring processing is applied on the first panel corresponds to the position of the eye of the user or the position of the head of the user.