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公开(公告)号：US20210303814A1
公开(公告)日：2021-09-30
申请号：US17264328
申请日：2020-06-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yingming LIU , Haisheng WANG , Xiaoliang DING , Lei WANG , Pengpeng WANG , Changfeng LI
IPC: G06K9/00
Abstract: A fingerprint identification device, a driving method thereof, and a display device are disclosed. The fingerprint identification device includes: a receiving electrode layer, a piezoelectric material layer, and a drive electrode layer. The piezoelectric material layer is between the receiving electrode layer and the drive electrode layer, the piezoelectric material layer is configured to emit ultrasonic waves under an excitation of at least a drive voltage, and is further configured to convert ultrasonic waves, which are emitted by the piezoelectric material layer and reflected by a fingerprint to be detected, into electrical signals; the drive electrode layer is configured to receive the drive voltage and a first fixed voltage simultaneously, and the receiving electrode layer is configured to output the electrical signals while receiving a second fixed voltage; the electrical signals are used for obtaining a fingerprint image.
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72.发明申请公开(公告)号：US20210295004A1
公开(公告)日：2021-09-23
申请号：US17264013
申请日：2020-06-10
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yingming LIU , Xiaochuan CHEN , Haisheng WANG , Xiaoliang DING , Lei WANG , Changfeng LI , Xiufeng LI , Chenyang ZHANG
IPC: G06K9/00
Abstract: Embodiments of the present disclosure provide an ultrasonic fingerprint identification circuit, a driving method thereof, and a fingerprint identification device. The circuit includes a transmitting electrode, a receiving electrode, a piezoelectric layer disposed between the transmitting electrode and the receiving electrode, and a signal output unit, the transmitting electrode is configured to receive an alternating current signal in a transmitting stage; the receiving electrode is connected with the signal output unit. The circuit further includes a photosensitive unit, with an anode connected with the receiving electrode and a cathode connected with a first fixed electric level so that the photosensitive unit is in a reverse bias state.
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公开(公告)号：US20210193752A1
公开(公告)日：2021-06-24
申请号：US16901882
申请日：2020-06-15
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yawei WANG , Haisheng WANG , Lei WANG , Lin ZHANG
Abstract: The present disclosure provides an optical fingerprint sensor and a display module. The optical fingerprint sensor includes a photodiode and a switching thin film transistor connected to the photodiode, in which the photodiode includes a first electrode made of a light-absorbing conductive nano-material; the first electrode is located in a same layer as a second electrode of the switching thin film transistor, and the first electrode includes a light-entering end surface facing a light-entering side and a side surface connected to the light-entering end surface, the side surface includes a curved portion, and the second electrode is at least connected to the curved portion.
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74.发明申请公开(公告)号：US20210182525A1
公开(公告)日：2021-06-17
申请号：US16903289
申请日：2020-06-16
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Lin ZHANG , Lei WANG , Haisheng WANG
IPC: G06K9/00 , G02F1/1368 , G02F1/1362 , G02F1/13357
Abstract: Embodiments of the present disclosure provide a texture acquisition device, a method for manufacturing a texture acquisition device, and a texture acquisition method. The texture acquisition device includes: a display panel; a backlight layer including a plurality of light sources spaced apart from each other, the light sources being configured to emit light toward a light exit side of the display panel; and a plurality of photoelectric sensors, wherein the texture acquisition device is configured in such a way that the light emitted by the light source is irradiated to a region between adjacent light sources after being reflected by an object to be detected on the display panel, to form an optical path, and at least one photoelectric sensor is provided in the optical path so as to detect the light reflected by the object to be detected to recognize an texture image of the object to be detected.
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公开(公告)号：US20210124441A1
公开(公告)日：2021-04-29
申请号：US16976255
申请日：2019-10-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaoliang DING , Haisheng WANG , Yingming LIU , Pengpeng WANG , Likai DENG , Yangbing LI , Xueyou CAO , Ping ZHANG
Abstract: Disclosed are a display substrate, a display device and a detection method by using a display device. The display substrate includes at least one sub-pixel. the at least one sub-pixel includes a first region and a second region, and the at least one sub-pixel includes a light emitting element which is arranged in the first region, and a pixel circuit structure and a photosensitive stucture which are arranged in the second region, the pixel circuit structure and the photosensitive structure are stacked, and the photosensitive structure is closer to a light exiting side of the display substrate than the pixel circuit structure.
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Patent Agency Ranking
公开(公告)号：US20210117640A1
公开(公告)日：2021-04-22
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：US20210056905A1
公开(公告)日：2021-02-25
申请号：US16996248
申请日：2020-08-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yingming LIU , Haisheng WANG , Xiaoliang DING , Lei WANG , Pengpeng WANG , Changfeng LI
IPC: G09G3/3258 , H01L27/32 , H01L51/52
Abstract: The present disclosure discloses a pixel driving circuit, a driving method for the pixel driving circuit, a display panel and a display apparatus. The pixel driving circuit for driving a light emitting device includes: a threshold compensation subcircuit, a driving subcircuit and an optical signal detection subcircuit; the threshold compensation subcircuit is coupled to a control electrode of a driving transistor, and a first electrode of the driving transistor is coupled to the light emitting device; the optical signal detection subcircuit is coupled to the threshold compensation subcircuit; and the optical signal detection subcircuit is configured to detect an optical signal which is incident on a region where the optical signal detection subcircuit is located.
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公开(公告)号：US20210026178A1
公开(公告)日：2021-01-28
申请号：US16069764
申请日：2017-12-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pengpeng WANG , Xue DONG , Haisheng WANG , Chunwei WU , Xiaoliang DING , Chihjen CHENG , Wei LIU , Yanling HAN , Xueyou CAO , Ping ZHANG , Changfeng LI , Yanan JIA , Yuzhen GUO
IPC: G02F1/1333 , G06F3/01 , G02F1/1368 , H01Q1/24 , H01Q1/52
Abstract: The present disclosure provides an array substrate, comprising a substrate and a display element arranged above the substrate. The array substrate further comprises an antenna structure for transmitting and receiving electromagnetic waves. The antenna structure comprises a signal shielding layer and an antenna patch layer arranged on the substrate. The antenna patch layer and the signal shielding layer are spaced apart through a dielectric layer. The antenna patch layer is beneath the signal shielding layer such that the antenna structure transmits electromagnetic waves towards the bottom of the substrate and receives the electromagnetic waves from the bottom of the substrate. The present disclosure further provides a display panel and a man-machine interactive terminal.
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公开(公告)号：US20200343311A1
公开(公告)日：2020-10-29
申请号：US16080896
申请日：2018-01-08
Applicant: BOE Technology Group Co., Ltd.
Inventor： Changfeng LI , Xue DONG , Haisheng WANG , Yingming LIU , Xiaoliang DING , Rui XU , Pinchao GU , Pengcheng LU
Abstract: The present disclosure relates to the field of display technologies, and provides a touch substrate and a display panel. Specifically, the touch substrate comprises: a pixel array and a light sensing device array arranged oppositely; a light shielding layer between the pixel array and the light sensing device array; and a lens array on a side of the light shielding layer remote from the light sensing device array. The pixel array comprises a plurality of pixel units, each pixel unit comprising a plurality of sub-pixels. The lens array comprises a plurality of lens units. The light sensing device array comprises a plurality of light sensing devices. The light shielding layer is provided with a plurality of via holes.
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公开(公告)号：US20200285826A1
公开(公告)日：2020-09-10
申请号：US15774436
申请日：2017-10-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pinchao GU , Xue DONG , Haisheng WANG , Yingming LIU , Rui XU , Changfeng LI , Yuzhen GUO , Yunke QIN
Abstract: The present disclosure provides a display substrate and a display device. The display substrate of the present disclosure comprises: an array (1) of optical sensing devices; an optical structure (2) disposed above the array (1) of optical sensing devices, wherein the optical structure (2) comprises a plurality of optical units (20) each of which comprises a light shading region (Q1) and a light transmission region (Q2); and a pixel array (3) disposed above the optical structure (2), wherein the pixel array (3) comprises a plurality of pixel units (30) each of which comprises subpixels of different colors.
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