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公开(公告)号：US20250103845A1
公开(公告)日：2025-03-27
申请号：US18826768
申请日：2024-09-06
Applicant: Japan Display Inc.
Inventor： Tomoyuki ISHIHARA
IPC: G06K19/07 , G06K19/077
Abstract: According to an aspect, a detection device includes: a light-transmitting light guide plate that has a first surface on one side in a first direction and on which an object to be detected is to be placed so as to overlap the first surface; an optical sensor that is disposed on the other side in the first direction with respect to the light guide plate so as to overlap the light guide plate and includes photodiodes; a light source that is adjacent to the light guide plate in a second direction intersecting the first direction and is configured to emit light to a side surface of the light guide plate; and an antenna coil overlapping at least one of the light guide plate and the optical sensor as viewed in the first direction. The optical sensor, the light source, and the antenna coil are electrically coupled to a control board.
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公开(公告)号：US20210390925A1
公开(公告)日：2021-12-16
申请号：US17343074
申请日：2021-06-09
Applicant: Japan Display Inc.
Inventor： Tomoyuki ISHIHARA , Kazuhiko SAKO
IPC: G09G5/10 , G09G3/3275
Abstract: According to an aspect, a display device includes: a display panel that has a display area in which a plurality of pixels are arranged; a light source configured to illuminate the display area; a first control circuit configured to receive first signals corresponding to a first partial image to be displayed in a portion of the display area; and a second control circuit configured to receive second signals corresponding to a second partial image to be displayed in another portion of the display area. The light source has a plurality of light-emitting areas in each of which a light emission intensity is individually controllable. The first control circuit is configured to transmit lighting quantity information indicating the light emission intensity of each of the light-emitting areas to the second control circuit.
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公开(公告)号：US20210390919A1
公开(公告)日：2021-12-16
申请号：US17342783
申请日：2021-06-09
Applicant: Japan Display Inc.
Inventor： Tomoyuki ISHIHARA , Kazuhiko SAKO
IPC: G09G3/36
Abstract: A liquid crystal display device includes: a liquid crystal panel having pixels with a first electrode and a second electrode; a control circuit; and a counter. The number and an arrangement of pixels where a potential of the second electrode is higher than that of the first electrode in a first mode equal the number and an arrangement of pixels where the potential of the first electrode is higher than that of the second electrode in a second mode. The counter increases a count while the panel operates in the first mode, and decreases the count while the panel operates in the second mode. The control circuit operates the panel in the first mode when the count at a determination timing is not greater than a first threshold, and operates the panel in the second mode when the count at the determination timing is not less than a second threshold.
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公开(公告)号：US20240185813A1
公开(公告)日：2024-06-06
申请号：US18521650
申请日：2023-11-28
Applicant: Japan Display Inc.
Inventor： Kazuhiko SAKO , Yoshihiro WATANABE , Tomoyuki ISHIHARA
IPC: G09G3/36
CPC classification number: G09G3/3607 , G02B27/0172 , G09G2320/064 , G09G2320/0666
Abstract: A display device includes a display panel comprising a display region for displaying an image, a light source device comprising a plurality of light sources configured to emit light toward the display panel, and a drive circuit configured to drive the display panel based on an image signal including information on the image.
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5.发明公开公开(公告)号：US20240044458A1
公开(公告)日：2024-02-08
申请号：US18230522
申请日：2023-08-04
Applicant: Japan Display Inc.
Inventor： Tomoyuki ISHIHARA
CPC classification number: F21K9/232 , H05K3/3415 , F21K9/237 , H05K3/303 , F21V19/005 , F21Y2107/40
Abstract: To provide a technology capable of improving efficiency in a mounting process of disposing a large number of identical parts such as LED elements on a circuit board. An optical light emitting device includes: packages of a plurality of regular polyhedra each having a light emitting element; and a board having a plurality of mounting holes fitted with three surfaces of the regular polyhedral packages. In the optical light emitting device, the exterior of each of the regular polyhedra in the regular polyhedral packages is comprised of a transparent member. Each of the regular polyhedral packages includes: first electrodes each provided at each top; and second electrodes each provided on a straight line connecting the two tops, each of the first electrodes is connected to one electrode of the light emitting element, and each of the second electrodes is connected to the other electrode of the light emitting element.
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Patent Agency Ranking
公开(公告)号：US20220375377A1
公开(公告)日：2022-11-24
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
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.
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公开(公告)号：US20220157269A1
公开(公告)日：2022-05-19
申请号：US17526233
申请日：2021-11-15
Applicant: JAPAN DISPLAY INC.
Inventor： Tomoyuki ISHIHARA , Junji KOBASHI
IPC: G09G3/36 , G02F1/1347
Abstract: A display device incudes: a display panel including a plurality of pixels; and a dimming panel that is disposed between the display panel and a light source of light to be emitted to the display panel and includes a plurality of dimming pixels. When one of the pixels produces an output at highest luminance and the other pixels produce an output at lowest luminance to the display panel, the light is transmitted through a predetermined one of the dimming pixels located on an optical axis of the light that is emitted to the one of the pixels and through the other dimming pixels arranged around the predetermined dimming pixel. A degree of transmission of the light through the other dimming pixels decreases as the light is away along one direction from the predetermined dimming pixel, and there are a plurality of directions having different degrees of the decrease.
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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
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.
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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
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.
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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.
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