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公开(公告)号：US20210365655A1
公开(公告)日：2021-11-25
申请号：US17054845
申请日：2019-12-06
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xiaoliang DING , Haisheng WANG , Yingming LIU , Pengpeng WANG , Likai DENG
IPC: G06K9/00
Abstract: There is provided an ultrasonic fingerprint identification component, including an ultrasonic fingerprint identification circuit, which includes a detection circuit and a source follower circuit, and a current supply circuit, where an output terminal of the source follower circuit is coupled to the current supply circuit through a signal reading line; the current supply circuit is configured to provide a constant current to the output terminal of the source follower circuit during an operation of the ultrasonic fingerprint identification circuit; the detection circuit is coupled to a receiving electrode of an ultrasonic sensor and is configured to output a sensing voltage to a sampling node according to an electric signal output by the receiving electrode of the ultrasonic sensor; and the source follower circuit is configured to output a corresponding source follower voltage to the signal reading line according to the sensing voltage under control of the constant current.
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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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公开(公告)号：US20210217379A1
公开(公告)日：2021-07-15
申请号：US16652797
申请日：2019-03-21
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yangbing LI , Pengpeng WANG , Xiaoliang DING , Jiabin WANG , Yapeng LI , Likai DENG
IPC: G09G5/10
Abstract: A display device, an electronic equipment, and a method for driving a display device are disclosed. The display device includes a first light source group, a second light source group, a first image sensor group, and a second image sensor group. The first light source group is configured to emit light of a first determined frequency to illuminate a first partial region of a detection object, the second light source group is configured to emit light of a second determined frequency to illuminate a second partial region of the detection object, the first image sensor group is configured to receive the light of the first determined frequency emitted by the first light source group and reflected by the detection object, and the second image sensor group is configured to receive the light of the second determined frequency emitted by the second light source group and reflected by the detection object.
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公开(公告)号：US20200349334A1
公开(公告)日：2020-11-05
申请号：US16764951
申请日：2019-11-05
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yangbing LI , Haisheng WANG , Xiaoliang DING , Pengpeng WANG , Jiabin WANG , Ping ZHANG , Likai DENG , Yapeng LI , Chihjen CHENG , Yanling HAN , Xueyou CAO
IPC: G06K9/00 , G02F1/1335 , G02F1/1333
Abstract: 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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公开(公告)号：US20220037429A1
公开(公告)日：2022-02-03
申请号：US17278720
申请日：2020-05-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Likai DENG , Ping ZHANG , Xiaoliang DING , Pengpeng WANG
Abstract: The present disclosure provides an array substrate and a display device. The array substrate includes a substrate, a pixel unit and a measurement unit on the substrate, and a compensation element. The measurement unit includes: a photosensitive device configured to detect a luminous intensity of the pixel unit; a thermosensitive device configured to measure an operating temperature of the photosensitive device; and a light source device configured to provide light to the thermosensitive device. An orthographic projection of the light source device on the substrate is within an orthographic projection of the thermosensitive device on the substrate. The compensation element is configured to compensate the luminous intensity of the pixel unit according to the luminous intensity of the pixel unit detected by the photosensitive device and the operating temperature of the photosensitive device measured by the thermosensitive device.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20210385360A1
公开(公告)日：2021-12-09
申请号：US17280366
申请日：2020-07-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pengpeng WANG , Haisheng WANG , Xiaoliang DING , Yangbing LI , Xueyou CAO , Ping ZHANG , Likai DENG , Yubo WANG
Abstract: A display panel includes a display layer, a photosensitive layer and an infrared mask. The display layer is configured to display an image, the display layer has light-transmitting portions, and the light-transmitting portions are configured to transmit infrared light. The photosensitive layer is disposed on a side of the display layer. The infrared mask is disposed on a side of the photosensitive layer proximate to the display layer, the infrared mask has hollowed-out regions, the hollowed-out regions are configured to make the infrared mask have a preset pattern, and a region in the infrared mask except the hollowed-out regions is configured to prevent transmission of the infrared light. The photosensitive layer is configured to receive infrared light passing though the hollowed-out regions and the light-transmitting portions, and convert the infrared light into an image signal.
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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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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：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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20.发明申请公开(公告)号：US20190092623A1
公开(公告)日：2019-03-28
申请号：US15936548
申请日：2018-03-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaoliang DING , Xue DONG , Haisheng WANG , Yingming LIU , Xueyou CAO , Yuzhen GUO , Ping ZHANG , Pengpeng WANG , Yanling HAN , Chihjen CHENG , Likai DENG , Yangbing LI
IPC: B81B7/02 , H01L27/32 , G01N27/447 , B01L3/00
Abstract: A droplet control and detection device and an operating method thereof are provided. The droplet control and detection device includes: a light source; a first electrode; a second electrode; a droplet arranged on a light-exiting side of the light source, where the droplet is movable under the effect of an electric field formed between the first electrode and the second electrode; a photoelectric detection structure configured to detect light emitted by the light source and reflected by the droplet; and a processing circuit configured to obtain droplet information according to a detection result of the photoelectric detection structure and control an electrical signal applied on the first electrode and the second electrode according to the droplet information.
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