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公开(公告)号：US20250076718A1
公开(公告)日：2025-03-06
申请号：US18813118
申请日：2024-08-23
Applicant: Japan Display Inc.
Inventor： Hiroyuki ABE , Akihiko SAITOH
IPC: G02F1/1362 , G02F1/1368 , G09G3/36 , H01L27/12
Abstract: A display device includes a first transistor including a first material as a semiconductor material and including a first gate electrode, a second transistor including a second material as a semiconductor material different from the first material and including a second gate electrode arranged in a different layer from the first gate electrode, a first wiring arranged in the same layer as the first gate electrode, a second wiring arranged in the same layer as the second gate electrode, and a third wiring formed in the same layer as a source electrode or a drain electrode of the second transistor and different from the first wiring and the second wiring. The first wiring, the second wiring and the third wiring overlap in a plan view.
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公开(公告)号：US20240071327A1
公开(公告)日：2024-02-29
申请号：US18456733
申请日：2023-08-28
Applicant: Japan Display Inc.
Inventor： Hiroyuki ABE , Akihiko SAITOH , Teppei YAMADA
CPC classification number: G09G3/3607 , G06V40/1318 , G09G2354/00
Abstract: According to one embodiment, a liquid crystal display device with an optical sensor includes a display panel and a driver IC. The display panel includes first to third signal lines, an optical sensor including a photoelectric conversion element, and a sensor signal line that is connected to the optical sensor and transmits a detection signal to the driver IC. One first wiring line drawn from one terminal of the driver IC is connected to four switching elements. Three of the four switching elements are electrically connected to one of the first to third signal lines, respectively. One of the four switching elements, different from the three switching elements, is electrically connected to the sensor signal line.
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公开(公告)号：US20220299813A1
公开(公告)日：2022-09-22
申请号：US17655440
申请日：2022-03-18
Applicant: Japan Display Inc.
Inventor： Hiroyuki ABE , Masateru MORIMOTO , Akihiko SAITOH
IPC: G02F1/1333 , G02F1/1368
Abstract: According to one embodiment, a display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a base, a sensor and a sensor circuit. The sensor is interposed between the base and the liquid crystal layer in a display area including pixels. The sensor outputs a sensing signal corresponding to light incident from alongside the liquid crystal layer. The sensor circuit includes a plurality of switching elements. The pixels include first to third sub-pixels. At least some of elements of the switching elements are arranged in each of areas where the first to third sub-pixels are arranged. A signal line for the sensor, which outputs the sensing signal, is placed on a same layer as a feeding line connected to the sensor.
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公开(公告)号：US20210055589A1
公开(公告)日：2021-02-25
申请号：US17091069
申请日：2020-11-06
Applicant: Japan Display Inc.
Inventor： Masaya TAMAKI , Akihiko SAITOH
IPC: G02F1/133 , G02F1/1333 , G02F1/1335 , G02F1/1345 , G09G3/36
Abstract: According to one embodiment, a display device includes a driver, a first pixel circuit disposed apart from the driver in plan view but electrically connected to the driver, a second pixel circuit separated further from the driver than the first pixel circuit in plan view but electrically connected to the driver, a first pixel electrode overlapping the driver in plan view, a second pixel electrode overlapping the first pixel circuit in plan view, a first relay line electrically connecting the first pixel circuit and the first pixel electrode to each other, and a second relay line electrically connecting the second pixel circuit and the second pixel electrode to each other.
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公开(公告)号：US20230317737A1
公开(公告)日：2023-10-05
申请号：US18126814
申请日：2023-03-27
Applicant: Japan Display Inc.
Inventor： Tomokazu ISHIKAWA , Masaru NAKAKOMI , Teppei YAMADA , Akihiko SAITOH
IPC: H01L27/12 , G02F1/1362
CPC classification number: H01L27/1244 , G02F1/136286 , G02F1/136209 , G02F1/136263
Abstract: A display device includes an array substrate, a first region in which a plurality of scan lines extending in a first direction, a plurality of signal lines extending in a second direction, and a plurality of pixels are provided on the array substrate and that has a first side, a second side, a third side, a fourth side, and a plurality of curved line parts, a second region positioned between an end part of the array substrate and the first region, a signal-line coupling circuit disposed in the second region and coupled to the signal lines, a shield layer disposed in the second region and covering at least part of the signal-line coupling circuit near at least one of the curved line parts, and a gate driver circuit disposed in the second region outside the signal-line coupling circuit and coupled to the scan lines.
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Patent Agency Ranking
公开(公告)号：US20230176690A1
公开(公告)日：2023-06-08
申请号：US18104527
申请日：2023-02-01
Applicant: Japan Display Inc.
Inventor： Akihiko SAITOH
CPC classification number: G06F3/04166 , G06F3/0428 , G06F3/0412
Abstract: A detection device is provided and includes insulating substrate; detection element including first photodiode, thin film transistors including a first thin film transistor; non-detection element including second photodiode and first thin film transistor; reset control scan line; first reset signal line; and second reset signal line, wherein reset control scan line is coupled to two gates of first thin film transistor of detection element and two gates of first thin film transistor of non-detection element, first reset signal line is coupled to a source of first thin film transistor of detection element, and second reset signal line is coupled to a source of first thin film transistor of non-detection element.
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公开(公告)号：US20160093265A1
公开(公告)日：2016-03-31
申请号：US14962329
申请日：2015-12-08
Applicant: Japan Display Inc.
Inventor： Masaki MIYATAKE , Akihiko SAITOH
CPC classification number: G09G3/3696 , G09G3/3225 , G09G3/3648 , G09G3/3677 , G09G3/3688 , G09G2320/0247 , G09G2330/025 , G09G2330/026
Abstract: According to one embodiment, a display device includes signal lines, scanning lines, pixel switching elements, a signal line driving circuit, a scanning line driving circuit and a display pixel, wherein the signal line driving circuit is configured to apply a voltage, which is identical to a voltage of the counter-electrode, to all the signal lines when a control signal, which is supplied from an outside of the insulative substrate, is at a first logic level, and the scanning line driving circuit is configured to turn on all the pixel switching elements when the control signal is at the first logic level, and to turn off the pixel switching elements at different timings when the control signal is at a second logic level.
Abstract translation: 根据一个实施例，显示装置包括信号线，扫描线，像素开关元件，信号线驱动电路，扫描线驱动电路和显示像素，其中信号线驱动电路被配置为施加电压， 当从绝缘基板的外部提供的控制信号处于第一逻辑电平时，扫描线驱动电路被配置为使所有信号线都与所述对置电极的电压相同， 当控制信号处于第一逻辑电平时，像素开关元件，以及当控制信号处于第二逻辑电平时，以不同的定时关闭像素开关元件。
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公开(公告)号：US20240192802A1
公开(公告)日：2024-06-13
申请号：US18582937
申请日：2024-02-21
Applicant: Japan Display Inc.
Inventor： Akihiko SAITOH
CPC classification number: G06F3/04166 , G06F3/0412 , G06F3/0428
Abstract: A detection device includes: a substrate having a sensor region in which photosensors are arranged in a first direction and a second direction. In the sensor region, the substrate includes: read control scan lines extending in the first direction and configured to transmit read control signals; and output signal lines extending in the second direction. The photosensors includes: dummy elements comprising first photodiodes and arranged along a contour of the sensor region; and detection elements comprising second photodiodes and arranged on an inner side of a dummy region in which the dummy elements are arranged. The dummy elements are coupled to neither the read control scan lines nor the output signal lines. The detection elements are coupled to the read control scan lines and the output signal lines and are configured to, after receiving the read control signals, output signals generated by the first photodiodes to the output signal lines.
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公开(公告)号：US20240160059A1
公开(公告)日：2024-05-16
申请号：US18507638
申请日：2023-11-13
Applicant: Japan Display Inc.
Inventor： Hiroyuki ABE , Akihiko SAITOH , Teppei YAMADA
IPC: G02F1/1333 , G02F1/133 , G06V40/13 , G09G3/36
CPC classification number: G02F1/13338 , G02F1/13306 , G06V40/1318 , G09G3/3677 , G09G2310/0286 , G09G2310/08 , G09G2354/00
Abstract: According to one embodiment, an optical sensor-equipped liquid crystal display device includes a display panel and a driver IC. The display panel includes a display area including pixels, a surrounding area surrounding the display area, peripheral circuits provided in the surrounding area, and an optical sensor outputting a detection signal in response to incident light. The peripheral circuit includes a shift register, and a gate switch group connected to the shift register and including a first gate switch and a second gate switch. The first gate switch is connected to a switching element for driving the pixel via a scanning line. The second gate switch is connected to a switching element included in a sensor circuit for driving the optical sensor via a scanning line for sensor.
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公开(公告)号：US20220413335A1
公开(公告)日：2022-12-29
申请号：US17851117
申请日：2022-06-28
Applicant: Japan Display Inc.
Inventor： Akihiko SAITOH , Masateru MORIMOTO , Hiroyuki ABE
IPC: G02F1/1335 , G02F1/1333 , G02F1/1343 , H01L27/146
Abstract: According to one embodiment, a display device includes a first substrate, a second substrate facing the first substrate and a liquid crystal layer. The first substrate includes a base material, and a sensor which outputs a detection signal based on incident light from a liquid crystal layer side. The sensor includes a photoelectric conversion element including a first surface and a second surface, a first electrode which is in contact with the first surface, and a second electrode which is in contact with the second surface. Each of the photoelectric conversion element and the second electrode is formed in an irregular shape having a plurality of curved portions and a plurality of straight portions connecting the curved portions as seen in plan view.
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