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公开(公告)号:US20240012302A1
公开(公告)日:2024-01-11
申请号:US18341783
申请日:2023-06-27
Applicant: Japan Display Inc.
Inventor: Masato YOSHIDA , Hirofumi OHIRA
IPC: F21V17/00
CPC classification number: F21V17/005 , F21V14/003
Abstract: A light adjustment device includes a panel unit including a plurality of light adjustment panels stacked in a first direction, each light adjustment panel including a first substrate, a second substrate, and a plurality of alignment marks provided at at least one of the first substrate and the second substrate.
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公开(公告)号:US20220128852A1
公开(公告)日:2022-04-28
申请号:US17568751
申请日:2022-01-05
Applicant: Japan Display Inc.
Inventor: Koji YOSHIDA , Hirofumi OHIRA , Soichiro OHAMA , Naoki TAKADA , Takayuki NAKANISHI
IPC: G02F1/1333 , G02F1/1343 , G02F1/137 , G02F1/155 , G02F1/163
Abstract: The display device includes a display panel and a front surface panel that is superimposed with the display panel, and that is switched between a reflective state in which incident light is reflected and a transmissive state in which incident light is transmitted. The front surface panel can detect presence of an object to be detected.
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公开(公告)号:US20210191179A1
公开(公告)日:2021-06-24
申请号:US17167087
申请日:2021-02-04
Applicant: Japan Display Inc.
Inventor: Koji YOSHIDA , Hirofumi OHIRA , Soichiro OHAMA , Naoki TAKADA , Takayuki NAKANISHI
IPC: G02F1/1333 , G02F1/1343 , G02F1/155 , G02F1/137 , G02F1/163
Abstract: The display device includes a display panel and a front surface panel that is superimposed with the display panel, and that is switched between a reflective state in which incident light is reflected and a transmissive state in which incident light is transmitted. The front surface panel can detect presence of an object to be detected.
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公开(公告)号:US20240427180A1
公开(公告)日:2024-12-26
申请号:US18744836
申请日:2024-06-17
Applicant: Japan Display Inc.
Inventor: Hirofumi OHIRA
IPC: G02F1/13 , G02F1/1335 , G02F1/1337
Abstract: According to an aspect, a display device includes: a display panel having a display region configured to output an image; a light source configured to emit light toward one surface side of the display panel; and a light adjuster interposed between the display panel and the light source and provided to be able to change a transmission degree of light between the display panel and the light source. In the light adjuster, a first polarization layer, a first liquid crystal panel, a second polarization layer, a second liquid crystal panel, and a third polarization layer are stacked from the light source side toward the display panel side; and one of the first and second liquid crystal panels is provided as an E-mode liquid crystal panel, and the other of the first and second liquid crystal panels is provided as an O-mode liquid crystal panel.
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公开(公告)号:US20240013737A1
公开(公告)日:2024-01-11
申请号:US18217803
申请日:2023-07-03
Applicant: Japan Display Inc.
Inventor: Takaya HIROSE , Hirofumi OHIRA , Makoto ISHIKAWA
IPC: G09G3/34
CPC classification number: G09G3/3426 , G09G2320/0233 , G09G2320/0276 , G09G2320/0626
Abstract: According to an aspect, a display device includes: a display panel having a display area including pixels; a light source device configured to emit light from an emission area overlapping the display area toward the display panel; a dimming panel between the display panel and the light source device and configured to adjust brightness of emission light emitted from the emission area; and a drive circuit configured to drive the dimming panel. The emission area has a first emission area and a second emission area. The drive circuit is configured to, when gradation values of first pixels corresponding to the first emission area are equal to gradation values of second pixels corresponding to the second emission area, make transmittance of a second dimming area corresponding to the second pixels higher than that of a first dimming area corresponding to the first pixels in the dimming area.
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公开(公告)号:US20210188175A1
公开(公告)日:2021-06-24
申请号:US17197738
申请日:2021-03-10
Applicant: Japan Display Inc.
Inventor: Hirofumi OHIRA
IPC: B60R1/12 , G02F1/1343 , G02F1/1333 , G02F1/137 , G02F1/1347
Abstract: A display device includes a display panel, and a front panel overlapping with the display panel. The front panel has an active region capable of being switched into a display state in which an image is displayed and a reflection state in which a reflected image is provided and a frame region around the active region, and the frame region is a mirror surface when the active region is the display state and the reflection state.
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公开(公告)号:US20210063795A1
公开(公告)日:2021-03-04
申请号:US17009362
申请日:2020-09-01
Applicant: Japan Display Inc.
Inventor: Hirofumi OHIRA , Koji YOSHIDA , Soichiro OHAMA , Toshihiko TANAKA
IPC: G02F1/133 , G02F1/1333 , G02F1/1343 , G02F1/1335 , G02B27/01 , G01K1/02 , G01K7/16 , G01J1/42
Abstract: A display device comprising: a substrate having a display region; a plurality of temperature detection wires arranged at positions overlapping with the display region in plan view; and a light detection electrode overlapping with temperature detection regions of the temperature detection wires in plan view.
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公开(公告)号:US20190049787A1
公开(公告)日:2019-02-14
申请号:US16057949
申请日:2018-08-08
Applicant: Japan Display Inc.
Inventor: Hirofumi OHIRA , Koji YOSHIDA
IPC: G02F1/1335 , B60R1/08 , G02F1/1337 , G02F1/1343 , B60R1/04
Abstract: According to an aspect, a display device capable of displaying an image both in a reflective state in which incident light is reflected and in a transmissive state in which incident light is transmitted, the display device includes: a display panel disposed such that a second direction orthogonal to a first direction on a planar surface of the display panel is closer to parallel to a vertical direction than the first direction is. An azimuth at which the highest reflectance is obtained in the reflective state in which incident light is reflected is at a lower side in the vertical direction and between the first direction and the second direction.
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公开(公告)号:US20250123519A1
公开(公告)日:2025-04-17
申请号:US18999912
申请日:2024-12-23
Applicant: Japan Display Inc.
Inventor: Masato YOSHIDA , Hirofumi OHIRA
IPC: G02F1/1339 , G02F1/1347
Abstract: A light adjustment device includes a panel unit in which a plurality of light adjustment panels are stacked in a first direction, wherein each of the light adjustment panels includes a first substrate, a second substrate overlapping the first substrate, a liquid crystal layer positioned between the first and second substrates, a first seal material extending along the edge of the liquid crystal layer between the first and second substrates and provided with an injection opening, and a second seal material sealing the injection opening, the second seal material protruding outward from the edge of the light adjustment panel when viewed in a first direction, and when each of the light adjustment panels is sequentially designated as one light adjustment panel, the second seal material of the one light adjustment panel is positioned inside the edges of the other light adjustment panels other than the one light adjustment panel.
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公开(公告)号:US20230221603A1
公开(公告)日:2023-07-13
申请号:US18184725
申请日:2023-03-16
Applicant: Japan Display Inc.
Inventor: Yosuke HYODO , Shinichiro OKA , Hirofumi OHIRA
IPC: G09G3/36
CPC classification number: G09G3/3677 , G09G2320/0626
Abstract: According to one embodiment, a display device includes a first display panel, a second display panel and an adhesive layer which adheres the first and second display panels. The first display panel includes a first scanning line, a first signal line, a first pixel electrically connected to the first scanning line and the first signal line, and the first pixel includes a first pixel electrode including first line portions extending parallel to the first signal line. The second display panel includes a second scanning line, a second signal line, and a second pixel electrically connected to the second scanning line and the second signal line, and the second pixel includes a second pixel electrode including second line portions intersecting the second signal line in plan view.
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