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公开(公告)号：US11335113B2
公开(公告)日：2022-05-17
申请号：US16767867
申请日：2019-06-14
Inventor： Jiabin Wang , Xiaoliang Ding , Xueyou Cao , Wenjuan Wang , Jing Liu , Yichi Zhang , Haisheng Wang , Lei Wang , Yingming Liu , Yingzi Wang
Abstract: A texture image acquisition circuit, a display panel and a texture image acquisition method. The texture image acquisition circuit includes a charge neutralization circuit and a first acquisition circuit, the charge neutralization circuit is electrically connected to the first acquisition circuit, the charge neutralization circuit receives a first control signal to cause a current flowing through the first acquisition circuit to be a first current, and the charge neutralization circuit is configured to receive a second control signal to cause a current flowing through the first acquisition circuit to be a second current, a direction of the second current and a direction of the first current are opposite to each other; the first acquisition circuit is configured to receive light from a texture and accumulate a first signal amount that is acquired after the light from the texture is converted, so as to acquire a first acquisition value.
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公开(公告)号：US11314961B2
公开(公告)日：2022-04-26
申请号：US16767932
申请日：2019-06-12
Inventor： Jiabin Wang , Xiaoliang Ding , Xueyou Cao , Wenjuan Wang , Jing Liu , Yichi Zhang , Haisheng Wang , Lei Wang , Yingming Liu , Yingzi Wang
Abstract: A texture image acquisition method, a texture image acquisition circuit and a display panel are provided. The texture image acquisition circuit includes a photosensitive circuit, the texture image acquisition method includes: allowing the photosensitive circuit to receive light from a texture, and obtaining a first curve based on a signal amount accumulated by the photosensitive circuit within a first integral time period, the first curve being a time-varying curve of a residual signal amount which is a signal amount remaining after a signal amount, left over by the photosensitive circuit before the first integral time period, is released over time; obtaining a first acquisition value based on a signal amount accumulated by the photosensitive circuit within a second integral time period which is after the first integral time period; obtaining a first photosensitive signal of an image of the texture; based on the first curve and the first acquisition value.
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3.发明授权公开(公告)号：US11991460B2
公开(公告)日：2024-05-21
申请号：US17911150
申请日：2021-08-05
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yangbing Li , Xiaoliang Ding , Pengpeng Wang , Fangyuan Zhao , Yapeng Li , Wenjuan Wang , Yingming Liu , Lei Wang , Yichi Zhang , Tianyang Han
CPC classification number: H04N23/90 , H04L25/027 , H04N7/181 , H04N23/66 , H04N23/665 , H04N23/73 , H04N23/957
Abstract: A camera system comprises: a main control chip, wherein the main control chip includes at least one main control unit; at least one group of cameras, wherein each camera in each group of cameras includes an image acquisition control chip; and at least one pair of bidirectional differential data lines, wherein each pair of bidirectional differential data lines is connected to a single main control unit and all image acquisition control chips in a single group of cameras.
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公开(公告)号：US11974460B2
公开(公告)日：2024-04-30
申请号：US17437296
申请日：2020-12-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yangbing Li , Haisheng Wang , Xiaoliang Ding , Yunke Qin , Fangyuan Zhao , Wenjuan Wang , Ping Zhang
IPC: H10K50/86 , H10K59/131 , H10K59/50 , H10K71/00
CPC classification number: H10K50/865 , H10K59/131 , H10K59/50 , H10K71/00
Abstract: A display substrate includes a plurality of sub-pixels. The display substrate further includes: a base substrate; a plurality of temperature sensors disposed on a first side of the base substrate; and a light-shielding layer disposed on a peripheral side, a side proximate to the base substrate, and a side away from the base substrate, of a temperature sensor in the temperature sensors. The temperature sensor is configured to detect a temperature of at least one of the plurality of sub-pixels. The light-shielding layer is configured to shield light emitted to the temperature sensor.
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公开(公告)号：US11620848B2
公开(公告)日：2023-04-04
申请号：US16762349
申请日：2019-11-01
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xueyou Cao , Pengpeng Wang , Xiaoliang Ding , Haisheng Wang , Ping Zhang , Wenjuan Wang , Yapeng Li , Jiabin Wang , Likai Deng
Abstract: A detection circuit, a skin print recognition device and a method for driving a detection circuit are disclosed. The detection circuit includes a photosensitive element, a switching sub-circuit and a charge releasing sub-circuit. The photosensitive element is electrically coupled to the switching sub-circuit and the charge releasing sub-circuit, and is configured to convert a received optical signal into an electrical signal, the switching sub-circuit is configured to output the electrical signal, and the charge releasing sub-circuit is configured to release charges in the photosensitive element after the switching sub-circuit outputs the electrical signal.
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Patent Agency Ranking
公开(公告)号：US11288477B2
公开(公告)日：2022-03-29
申请号：US17156695
申请日：2021-01-25
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yapeng Li , Haisheng Wang , Xiaoliang Ding , Xueyou Cao , Yangbing Li , Yuanyuan Ma , Wenjuan Wang , Jiabin Wang
Abstract: 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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7.发明授权公开(公告)号：US11250237B2
公开(公告)日：2022-02-15
申请号：US16861576
申请日：2020-04-29
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xueyou Cao , Pengpeng Wang , Wenjuan Wang , Xiaoliang Ding , Haisheng Wang , Ping Zhang
IPC: G06K9/00 , H03K17/687
Abstract: The present disclosure relates to a circuit for fingerprint identification and a driving method thereof, a display panel, and a display device. The circuit for fingerprint identification of the present disclosure includes a voltage adjustment circuit, a photodiode, and a signal output circuit; wherein the voltage adjustment circuit is electrically connected with an anode of the photodiode, and the signal output circuit is electrically connected with a cathode of the photodiode; the voltage adjustment circuit is configured to adjust an anode voltage input to the photodiode to enable the photodiode to work in a linear region; and the signal output circuit is configured to amplify and output a signal output by the photodiode.
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公开(公告)号：US11232278B2
公开(公告)日：2022-01-25
申请号：US16975638
申请日：2019-10-16
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xueyou Cao , Xiaoliang Ding , Haisheng Wang , Wenjuan Wang , Pengpeng Wang , Yapeng Li , Ping Zhang , Likai Deng
IPC: G06K9/00
Abstract: A fingerprint identification and detection circuit, a fingerprint identification and detection method and a display device are provided. The fingerprint identification and detection circuit includes a storage capacitor, a capacitor control circuit and a photoelectric conversion element; the photoelectric conversion element is configured to, when in a photoelectric conversion state, convert a received optical signal into a corresponding electrical signal; the capacitor control circuit is provided between the storage capacitor and the photoelectric conversion element, and is configured to perform control to store at least part of the electrical signal to the storage capacitor under control of a capacitor control signal.
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公开(公告)号：US11488411B2
公开(公告)日：2022-11-01
申请号：US16892233
申请日：2020-06-03
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yuanyuan Ma , Yapeng Li , Xiaoliang Ding , Haisheng Wang , Jiabin Wang , Xueyou Cao , Pengpeng Wang , Wenjuan Wang
IPC: G06K9/20 , G06V40/13 , H01L25/16 , H01L25/18 , G06V40/12 , G02F1/157 , G02F1/1335 , G02F1/13357
Abstract: A panel for fingerprint identification and a control method thereof, and an apparatus for fingerprint identification. The panel for fingerprint identification includes: a display unit, a control unit, a unit for adjusting light transmittance and a unit for fingerprint identification which are disposed on a backlight side of the display unit, wherein an operating state of the panel for fingerprint identification includes: a display stage and a fingerprint identification stage. At the display stage, the display unit is configured to emit first light to display an image to be displayed, the unit for adjusting light transmittance is configured to transmit light transmitted through the display unit, and the control unit is connected with the unit for adjusting light transmittance and is configured to control the light transmittance of the unit for adjusting light transmittance.
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公开(公告)号：US20210279439A1
公开(公告)日：2021-09-09
申请号：US17156695
申请日：2021-01-25
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yapeng Li , Haisheng Wang , Xiaoliang Ding , Xueyou Cao , Yangbing Li , Yuanyuan Ma , Wenjuan Wang , Jiabin Wang
Abstract: 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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