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1.发明公开公开(公告)号：US20240069182A1
公开(公告)日：2024-02-29
申请号：US17765349
申请日：2021-05-21
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Liang CUI , Lei WANG , Yangbing LI , Yingzi WANG , Jiabin WANG , Yubo WANG , Yanling HAN
IPC: G01S7/534
Abstract: The disclosure provides an ultrasonic signal detection circuit including a sensing circuit, a unidirectional conduction circuit and a source follower circuit. The sensing circuit is connected to an input terminal of the source follower circuit through the unidirectional conduction circuit; the sensing circuit is configured to generate a piezoelectric signal according to a received ultrasonic echo signal and output the piezoelectric signal to the unidirectional conduction circuit. The piezoelectric signal is an alternating current signal; the unidirectional conduction circuit is configured to rectify the alternating current signal to only allow a forward or a reverse current portion thereof to pass through. The forward/reverse current portion charges/discharges the input terminal of the source follower circuit after passing through the unidirectional conduction circuit. The source follower circuit is configured to generate a detection signal according to a voltage at its input terminal and output the detection signal through its output terminal.
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公开(公告)号：US20210209326A1
公开(公告)日：2021-07-08
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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公开(公告)号：US20220188535A1
公开(公告)日：2022-06-16
申请号：US17515256
申请日：2021-10-29
Applicant: BOE Technology Group Co., Ltd.
Inventor： Mingdong WANG , Xuan FENG , Yunke QIN , Jiabin WANG , Yangbing LI , Ping ZHANG , Lei WANG
IPC: G06K9/00
Abstract: A fingerprint identification module is provided. The fingerprint identification module includes: a base substrate, a first conductive layer, and a third conductive layer that are laminated sequentially. The first conductive layer includes a first signal line and a second signal line, wherein the first signal line extends along a first direction and is connected to a gate of a reset transistor in a pixel sensing circuit, and the second signal line extends along the first direction and is connected to a gate of a switch transistor in the pixel sensing circuit. The third conductive layer includes a first conductive portion configured to form a first electrode of a photodiode in the pixel sensing circuit, wherein an orthographic projection of the first conductive portion on the base substrate does not overlap with orthographic projections of the first signal line and the second signal line on the base substrate.
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公开(公告)号：US20210192170A1
公开(公告)日：2021-06-24
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
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：US20210406506A1
公开(公告)日：2021-12-30
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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Patent Agency Ranking
公开(公告)号：US20210339254A1
公开(公告)日：2021-11-04
申请号：US16475093
申请日：2018-12-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pengpeng WANG , Haisheng WANG , Xiaoliang DING , Yanling HAN , Ping ZHANG , Xueyou CAO , Chihjen CHENG , Jiabin WANG , Yangbing LI
Abstract: A microfluidic circuit includes a detection capacitor, having a first terminal and a second terminal that are spaced apart from one another to thereby form a space therebetween. The circuit is configured to detect a droplet present in the space by detecting a change of a capacitance value of the detection capacitor caused by a change of a dielectric constant between the first terminal and the second terminal, and to drive a formation of an electrical field formed using at least one of the first terminal and the second terminal of the detection capacitor to thereby drive the droplet to move in the electrical field.
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公开(公告)号：US20200266242A1
公开(公告)日：2020-08-20
申请号：US16639282
申请日：2019-07-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaoliang DING , Xue DONG , Haisheng WANG , Yingming LIU , Pengpeng WANG , Yangbing LI , Jiabin WANG , Ping ZHANG , Likai DENG
Abstract: Embodiments of the present disclosure provide an array substrate, a display device and a spatial positioning method of a display device. The display device includes a base substrate, a pixel layer arranged at a side of the base substrate, a light source structure having a same light exit direction as the pixel layer, a processing element. The light source structure to emits collimation invisible light, the pixel layer includes a plurality of sub-pixels and at least one sensing pixel arranged between the sub-pixels, the at least one sensing pixel receives reflected light of the collimation invisible light emitted by the light source structure and reflected by an object to be positioned, the processing element is coupled with the sensing pixel and the light source structure, a distance from the object to the display device is calculated according to relevant data information of the collimation invisible light and the reflected light.
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公开(公告)号：US20240356640A1
公开(公告)日：2024-10-24
申请号：US17921360
申请日：2021-10-26
Applicant: BOE Technology Group Co., Ltd.
Inventor： Weijie WANG , Zhongyuan SUN , Fengjie ZHANG , Rui HUANG , Jiabin WANG , Yangbing LI , Yuzhen GUO , Biqi LI , Lu WANG , Guangcai YUAN
IPC: H04B10/116 , H04B10/114 , H10K39/30 , H10K59/35 , H10K59/60
CPC classification number: H04B10/116 , H04B10/1149 , H10K39/30 , H10K59/353 , H10K59/60 , H10K65/00
Abstract: A display substrate, a display apparatus, and a visible light communication system are disclosed. The display substrate includes an effective display region and a peripheral region surrounding the effective display region, the display substrate includes a base substrate, and a display unit, a light receiving unit, and a light emission unit on the base substrate. The display unit is in the effective display region and includes multiple light emitting sub-pixels; the light receiving unit is in at least one of a first light transceiving region and a second light transceiving region, the light emission unit is in at least one of a first light transceiving region and a second light transceiving region. The first light transceiving region is in the peripheral region and is an annular region surrounding the effective display region, and the second light transceiving region is between multiple light emitting sub-pixels of the effective display region.
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9.发明公开公开(公告)号：US20240355146A1
公开(公告)日：2024-10-24
申请号：US18254236
申请日：2022-04-19
Inventor： Meili WANG , Yaoyu LV , Lili CHEN , Xue DONG , Hao ZHANG , Jiabin WANG , Yangbing LI , Mingdong WANG , Lei WANG
CPC classification number: G06V40/28 , G06T7/55 , G06T7/74 , G06F3/017 , G06T2207/10016 , G06T2207/30196
Abstract: A gesture recognizing method, an interactive method, a gesture interactive system, an electronic device, and a non-transitory computer-readable storage medium are disclosed. The gesture recognizing method includes: acquiring a plurality of groups of images taken respectively at different photographing moments for a gesture action object, wherein each group of images includes at least one pair of corresponding depth map and grayscale map; and according to the plurality of groups of images, obtaining spatial information by using the depth map in each group of images, and obtaining posture information for the gesture action object by using the grayscale map in each group of the images, to recognize a dynamic gesture change of the gesture action object. The gesture recognizing method reduces the processing time as a whole, can quickly obtain gesture recognition results, reduce the system resource occupation, and ensure the real-time gesture interaction.
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公开(公告)号：US20210364830A1
公开(公告)日：2021-11-25
申请号：US16475124
申请日：2018-12-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pengpeng WANG , Xiaoliang DING , Yangbing LI , Jiabin WANG , Ping ZHANG , Likai DENG , Yanling HAN
IPC: G02F1/137 , G02F1/1343 , G02F1/167 , G02F1/1676 , G02F1/155 , H04N5/225
Abstract: A display panel capable of capturing an image of an object over a light-entering surface thereof includes a displaying array, a light valve array, and an imaging array, which are sequentially below the light-entering surface. The light valve array includes a plurality of light valve portions and can form a plurality of first mask patterns, and at least two first mask patterns are configured to be different. The displaying array includes a plurality of displaying pixels and can form a second mask pattern. The imaging array includes a plurality of imaging pixels and can generate an intermediate image upon receiving lights from the object and transmitting through the second mask pattern in the displaying array and at least one of the plurality of first mask patterns in the light valve array. The image of the object can then be deduced from the intermediate image.
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