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公开(公告)号：US11157712B2
公开(公告)日：2021-10-26
申请号：US17255922
申请日：2020-05-06
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Shengji Yang , Xue Dong , Xiaochuan Chen , Hui Wang , Pengcheng Lu , Shengnan Li , Kuanta Huang
Abstract: Fingerprint recognition driving circuit and method, fingerprint recognition module and touch screen are provided. The circuit includes: a first charge storing sub-circuit, a data acquiring sub-circuit configured to write output voltage of an ultrasonic sensor into a first end of the first charge storing sub-circuit, a driving sub-circuit including a driving transistor, a second charge storing sub-circuit, a circuit compensating sub-circuit configured to charge the second charge storing sub-circuit through the first charge storing sub-circuit and the driving transistor ill potential at a first end of the second charge storing sub-circuit equals the sum of output voltage of the ultrasonic sensor and threshold voltage of the driving transistor, and an output controlling sub-circuit configured to transmit a current signal output by the driving transistor to a signal reading circuit.
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公开(公告)号：US11125922B2
公开(公告)日：2021-09-21
申请号：US16527751
申请日：2019-07-31
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Kai Guo , Xiaolong Li , Xueling Gao , Kuanjun Peng , Shengnan Li , Weixing Liu
Abstract: The present disclosure provides a structured retroreflector. The structured retroreflector includes a transparent substrate, a plurality of transflective structure layers disposed on one side of the transparent substrate and mutually laminated and parallel, wherein distances between any two adjacent transflective structure layers are equal and 0.1λ to 10λ, λ being a wavelength of incident light, and a transparent filling layer disposed between any two adjacent transflective structure layers.
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公开(公告)号：US20210150975A1
公开(公告)日：2021-05-20
申请号：US16891124
申请日：2020-06-03
Applicant: BOE Technology Group Co., Ltd.
Inventor： Shengnan Li , Wei Qin , Tieshi Wang , Weixing Liu , Chunfang Zhang , Wanpeng Teng , Dongni Liu
IPC: G09G3/32
Abstract: A pixel circuit, a driving method thereof and a display apparatus are provided. The pixel circuit comprises a control module, a short-circuit protection module, a drive transistor and a light-emitting device, wherein the short-circuit protection module is used for providing a data voltage to a gate of the drive transistor in response to a gate signal; a second pole of the drive transistor is connected to a positive pole of the light-emitting device, and a negative pole of the light-emitting device receives a second power supply voltage; the short-circuit protection module is used for providing a third power supply voltage to the gate of the drive transistor to turn off the drive transistor in response to the data voltage provided to the gate of the drive transistor and the second power supply voltage provided to the positive pole of the light-emitting device.
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公开(公告)号：US11462592B2
公开(公告)日：2022-10-04
申请号：US16650601
申请日：2019-10-14
Applicant: BOE Technology Group Co., Ltd.
Inventor： Shengji Yang , Xue Dong , Xiaochuan Chen , Hui Wang , Shengnan Li , Zengqiang Zheng
IPC: H01L29/08 , H01L27/32 , G09G3/3258
Abstract: An array substrate, a driving method, an organic light emitting display panel and a display device. The array substrate includes a plurality of light emitting devices and pixel circuits connected with the light emitting devices, both located in a display area as well as a plurality of voltage control circuits located in a non-display area, wherein at least two of the pixel circuits in one row share one of the voltage control circuits.
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Patent Agency Ranking
公开(公告)号：US11231595B2
公开(公告)日：2022-01-25
申请号：US16442975
申请日：2019-06-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaolong Li , Wei Qin , Kuanjun Peng , Xueling Gao , Fangzhen Zhang , Jintao Peng , Jinqian Wang , Miaomiao Yang , Shuang Sun , Chunfang Zhang , Shengnan Li
Abstract: A semi-transparent semi-retroreflective film and an air display device are provided. The air display device includes: a first polarizer and a second polarizer assembled with each other to form a cell; a semi-transparent semi-reflective structure and a semi-transparent semi-retroreflective film disposed between the first polarizer and the second polarizer; a first ¼ wave plate disposed at a side of the air display device adjacent to the first polarizer; and a second ¼ wave plate disposed between the semi-transparent semi-reflective structure and the semi-transparent semi-retroreflective film. The air display device is configured such that polarized light incident from the first polarizer, after being processed by an internal optical path of the air display device, exits from the second polarizer to form an air image at a side of the air display device away from the first polarizer.
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公开(公告)号：US20210327357A1
公开(公告)日：2021-10-21
申请号：US17271776
申请日：2020-07-22
Applicant: BOE Technology Group Co., Ltd.
Inventor： Weixing Liu , Tieshi Wang , Zhiqiang Xu , Shengnan Li , Wanpeng Teng , Chunfang Zhang , Xiaolong Li , Wei Qin , Kai Guo , Kuanjun Peng
IPC: G09G3/3258 , H01L27/32 , H01L51/50
Abstract: The present disclosure provides a pixel circuit and a method for driving the same, and a display panel. The pixel circuit includes a driving sub-circuit and a light-emitting control sub-circuit. The driving sub-circuit is configured to transmit a first power voltage at a first power signal terminal to a second node. The light-emitting control sub-circuit is configured to: transmit a voltage at the second node and a second power voltage at the second power signal terminal to the first electrode of the first light-emitting element and the second electrode of the first light-emitting element respectively in a first period, to the first electrode of the second light-emitting element and the second electrode of the second light-emitting element respectively in a second period, and to the first electrode of the third light-emitting element and the second electrode of the third light-emitting element respectively in a third period.
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公开(公告)号：US11138923B2
公开(公告)日：2021-10-05
申请号：US16891124
申请日：2020-06-03
Applicant: BOE Technology Group Co., Ltd.
Inventor： Shengnan Li , Wei Qin , Tieshi Wang , Weixing Liu , Chunfang Zhang , Wanpeng Teng , Dongni Liu
IPC: G09G3/32
Abstract: A pixel circuit, a driving method thereof and a display apparatus are provided. The pixel circuit comprises a control module, a short-circuit protection module, a drive transistor and a light-emitting device, wherein the short-circuit protection module is used for providing a data voltage to a gate of the drive transistor in response to a gate signal; a second pole of the drive transistor is connected to a positive pole of the light-emitting device, and a negative pole of the light-emitting device receives a second power supply voltage; the short-circuit protection module is used for providing a third power supply voltage to the gate of the drive transistor to turn off the drive transistor in response to the data voltage provided to the gate of the drive transistor and the second power supply voltage provided to the positive pole of the light-emitting device.
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公开(公告)号：US10962825B2
公开(公告)日：2021-03-30
申请号：US16429841
申请日：2019-06-03
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wei Qin , Kuanjun Peng , Xiaolong Li , Tieshi Wang , Xueling Gao , Jintao Peng , Shengnan Li
IPC: G02F1/1335 , G02F1/1337 , G02F1/1343
Abstract: A display panel is provided, including an organic electroluminescent device including an anode layer, a liquid crystal cell on a light exit side of the organic electroluminescent device. The liquid crystal cell includes a liquid crystal layer, a linear polarizer on a side of the liquid crystal cell facing away from the organic electroluminescent device and configured to convert ambient light into a first polarized light, and an electrode assembly configured to control deflection of liquid crystal molecules in the liquid crystal layer to convert reflected light from the anode layer into a second polarized light. A second polarization direction of the second polarized light is different from a first polarization direction of the first polarized light. The display panel may decrease the intensity of reflected light perceived by the user when viewing the displayed image in an ambient environment.
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19.发明申请公开(公告)号：US20200319521A1
公开(公告)日：2020-10-08
申请号：US16956066
申请日：2019-10-25
Applicant: BOE Technology Group Co., Ltd.
Inventor： Wei Qin , Xiaolong Li , Tieshi Wang , Jintao Peng , Xueling Gao , Yanan Niu , Kuanjun Peng , Shengnan Li
IPC: G02F1/155 , G02F1/29 , G02F1/13357 , G02F1/1335
Abstract: A display panel, a method for preparing a display panel and a method for adjusting an intensity of ambient light reflected on a display panel are provided in embodiments of the disclosure. The display panel includes: a base substrate; a plurality of sub-pixel units (20) on the base substrate comprising a plurality of light emitting portions respectively; an electrochromic assembly on a light-emergent side of the plurality of light emitting portions; and a light intensity detector configured to detect an incident intensity of ambient light, and the electrochromic assembly comprises a plurality of electrochromic portions covering the plurality of light emitting portions, respectively; and transmittance of the plurality of electrochromic portions for ambient light varies with a change in the incident intensity of ambient light.
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