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公开(公告)号：US11288477B2
公开(公告)日：2022-03-29
申请号：US17156695
申请日：2021-01-25
发明人： Yapeng Li , Haisheng Wang , Xiaoliang Ding , Xueyou Cao , Yangbing Li , Yuanyuan Ma , Wenjuan Wang , Jiabin Wang
摘要： A method for imaging a fingerprint under a screen, including: acquiring a finger pressing area formed by a finger pressing on the screen; determining a first light source and a second light source of the screen based on the finger pressing area, wherein arrangement directions of the first light source and the second light source are not perpendicular to a long axis of the finger pressing area; acquiring a first fingerprint image after the first light source is turned on, and a second fingerprint image after the second light source is turned on; and splicing the first fingerprint image and the second fingerprint image to acquire a target fingerprint image.
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公开(公告)号：US20210216163A1
公开(公告)日：2021-07-15
申请号：US16631445
申请日：2019-02-01
发明人： Pengpeng Wang , Haisheng Wang , Xiaoliang Ding , Yangbing Li , Likai Deng
IPC分类号： G06F3/042 , H01L25/18 , H01L25/16 , G02F1/29 , G01S17/42 , G01S17/894 , G01S7/481 , G06T7/50
摘要： A display apparatus for detecting three-dimensional (3D) spatial information. The display apparatus includes a display panel having plurality of active subpixels in a display area configured with multiple gaps respectively between at least some active subpixels, the display panel including a counter substrate at front and a backplane substrate at back; an optical layer at a back side of the backplane substrate; multiple light sensors attached discretely on a back side of the optical layer and substantially aligned with the multiple gaps in the display area; and a light source on the backplane substrate and configured to provide an infrared light signal in a direction toward a field of view beyond the counter substrate. The multiple light sensors are configured to detect respective infrared light signals reflected from multiple different regions of an object in the field of view for collectively deducing 3D spatial information of the object.
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公开(公告)号：US20190070602A1
公开(公告)日：2019-03-07
申请号：US15956119
申请日：2018-04-18
发明人： Yanling Han , Xue Dong , Haisheng Wang , Xiaoliang Ding , Yingming Liu , Yuzhen Guo , Xueyou Cao , Ping Zhang , Pengpeng Wang , Chih Jen Cheng , Wei Liu , Yangbing Li , Likai Deng
摘要： A microfluidic system and method are disclosed. The microfluidic system includes: a first base substrate; a second base substrate opposite to the first base substrate; a first electrode on a side of the first base substrate close to the second base substrate; and a second electrode on a side of the second base substrate close to the first base substrate, the first base substrate and the second base substrate forms a cell, the cell is configured to receive a liquid to be detected, the first electrode and the second electrode are configured to drive the liquid to be detected during a first time period, and output a capacitance signal between the first electrode and the second electrode during a second time period.
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公开(公告)号：US12022719B2
公开(公告)日：2024-06-25
申请号：US17765723
申请日：2021-04-13
发明人： Lei Wang , Xiaoliang Ding , Xiaoquan Hai , Yangbing Li , Lei Zhang , Yingzi Wang
IPC分类号： H10K59/60 , G06V40/13 , H10K59/122 , H10K59/40 , H10K59/65
CPC分类号： H10K59/60 , G06V40/1318 , H10K59/122 , H10K59/40 , H10K59/65
摘要： A display substrate includes a substrate, a plurality of photosensitive sensors disposed on a side of the substrate, and a first light guide layer disposed on a side of the plurality of photosensitive sensors away from the substrate. A material of the first light guide layer includes a light-shielding material. The first light guide layer is provided with a plurality of first through holes, and an orthographic projection of at least one first through hole on the substrate is located within a range of an orthographic projection of a photosensitive sensor of the plurality of first through holes on the substrate.
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5.发明公开公开(公告)号：US20240184405A1
公开(公告)日：2024-06-06
申请号：US17795785
申请日：2021-09-27
发明人： Fangyuan Zhao , Jiabin Wang , Yue Tong , Lei Wang , Yangbing Li
IPC分类号： G06F3/042 , H01L27/146
CPC分类号： G06F3/042 , H01L27/14612 , H01L27/14643
摘要： A photoelectric detection circuit, a method of controlling the photoelectric detection circuit and a pixel unit are provided. The photoelectric detection circuit includes: a detection sub-circuit configured to generate a current flowing between a bias voltage signal terminal and a input node in response to an optical signal; a storage sub-circuit connected between the bias voltage signal terminal and the input node, and configured to store energy based on the current generated by the detection sub-circuit; an integrator sub-circuit having a first input terminal, a second input terminal and an output terminal, and configured to integrate a signal of the first input terminal based on a potential of the second input terminal to generate an integrated signal and output the integrated signal at the output terminal; and a control sub-circuit connected to a control signal terminal, the input node and the first input terminal of the integrator sub-circuit.
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公开(公告)号：US11796858B2
公开(公告)日：2023-10-24
申请号：US16966581
申请日：2019-08-05
发明人： Pengpeng Wang , Haisheng Wang , Xiaoliang Ding , Yangbing Li , Yapeng Li , Ping Zhang , Likai Deng , Yubo Wang
IPC分类号： G02F1/13357 , G01S17/08 , G01S17/89
CPC分类号： G02F1/133603 , G01S17/08 , G01S17/89 , G02F1/133606 , G02F1/133621
摘要： The present disclosure provides a backlight substrate, a manufacturing method thereof, and a display device. The backlight substrate includes: a base substrate; a plurality of first light emitting elements on the base substrate and configured to emit first light; a plurality of second light emitting elements on the base substrate and configured to emit second light having a different wavelength from the first light; a plurality of depth sensors on the base substrate and configured to receive the second light emitted from the plurality of second light emitting elements and reflected by an object and determine depth information of the object based on the received second light; and a diffusion layer in direct contact with light emitting surfaces of the plurality of first light emitting elements and configured to diffuse the first light emitted from the plurality of first light emitting elements.
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公开(公告)号：US12130990B2
公开(公告)日：2024-10-29
申请号：US17795785
申请日：2021-09-27
发明人： Fangyuan Zhao , Jiabin Wang , Yue Tong , Lei Wang , Yangbing Li
IPC分类号： H01L27/146 , G06F3/042
CPC分类号： G06F3/042 , H01L27/14612 , H01L27/14643
摘要： A photoelectric detection circuit, a method of controlling the photoelectric detection circuit and a pixel unit are provided. The photoelectric detection circuit includes: a detection sub-circuit configured to generate a current flowing between a bias voltage signal terminal and a input node in response to an optical signal; a storage sub-circuit connected between the bias voltage signal terminal and the input node, and configured to store energy based on the current generated by the detection sub-circuit; an integrator sub-circuit having a first input terminal, a second input terminal and an output terminal, and configured to integrate a signal of the first input terminal based on a potential of the second input terminal to generate an integrated signal and output the integrated signal at the output terminal; and a control sub-circuit connected to a control signal terminal, the input node and the first input terminal of the integrator sub-circuit.
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公开(公告)号：US11527095B2
公开(公告)日：2022-12-13
申请号：US17489605
申请日：2021-09-29
发明人： Liang Cui , Lei Wang , Yangbing Li , Yubo Wang , Xiufeng Li , Yuanyuan Ma
摘要： The present disclosure provides a fingerprint sensing sub-circuit, a fingerprint sensing circuit, a fingerprint recognition method, a sensor, a touch display panel and a display device. The fingerprint sensing sub-circuit includes an acoustic wave generation circuit and an acoustic wave reception circuit. The acoustic wave generation circuit is configured to generate an ultrasonic wave. The acoustic wave reception circuit is configured to collect a voltage signal, convert the voltage signal into a current signal, and output the current signal to a signal output end. The acoustic wave generation circuit and the acoustic wave reception circuit are separated from each other, so that the fingerprint sensing sub-circuit operates in a mode where a transmitting operation and a receiving operation are separated from each other.
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9.发明申请公开(公告)号：US20220343669A1
公开(公告)日：2022-10-27
申请号：US17422242
申请日：2020-09-29
发明人： Liang Cui , Lei Wang , Yangbing Li , Yubo Wang , Xiufeng Li , Yuanyuan Ma
摘要： A method for identifying a fingerprint, includes: performing a plurality of signal load operations on a plurality of transmit electrodes; in response to performing the signal load operations on the transmit electrodes, acquiring a fingerprint signal by a target electrode of the receive electrodes; and identifying a fingerprint based on acquired fingerprint signals.
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公开(公告)号：US11386692B2
公开(公告)日：2022-07-12
申请号：US16764951
申请日：2019-11-05
发明人： Yangbing Li , Haisheng Wang , Xiaoliang Ding , Pengpeng Wang , Jiabin Wang , Ping Zhang , Likai Deng , Yapeng Li , Chihjen Cheng , Yanling Han , Xueyou Cao
IPC分类号： G02F1/1335 , G06V40/13 , G02F1/1333
摘要： A display panel has a light-exit side and a non-light-exit side opposite to the light-exit side. A direction pointing to the non-light-exit side from the light-exit side is a first direction. In the first direction, the display panel includes a coded aperture mask layer and an optical sensing layer. The coded aperture mask layer includes a plurality of first light-transmission portions and a plurality of first light-shielding portions. The coded aperture mask layer is configured to form at least one part of a coded aperture array. The optical sensing layer includes a plurality of optical sensors. The optical sensing layer is configured to receive texture recognition light passed through the coded aperture array and convert optical signals of the texture recognition light into electrical signals. The texture recognition light is light carrying information about a texture to be recognized.
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