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公开(公告)号：US11328641B2
公开(公告)日：2022-05-10
申请号：US16839413
申请日：2020-04-03
Inventor： Zhiyang He , Mindong Zheng , Youlu Li , Yongxian Xie , Qiang Liu , Hui Wang
Abstract: A shift register unit, a driving method thereof, a gate driving circuit, and a display device are provided. The shift register unit includes an input branch and a reset branch; the input branch is configured to form or disconnect a first path between a first scan voltage terminal and a pull-up node under control of a potential of a first control terminal. The reset branch is configured to form or disconnect a second path between a second scan voltage terminal and the pull-up node under control of a potential of a second control terminal.
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公开(公告)号：US11322092B2
公开(公告)日：2022-05-03
申请号：US16959858
申请日：2019-08-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Shengji Yang , Xiaochuan Chen , Hui Wang , Kuanta Huang , Pengcheng Lu
IPC: G09G3/3258 , H01L27/32 , H01L51/52
Abstract: A display substrate and a display panel are provided. The display substrate includes a base substrate, and the base substrate includes a display region, a sensing region, and a dummy region; a plurality of sensing pixel units including a first light emitting element and a first pixel circuit are provided in the sensing region, and the first pixel circuit controls a voltage sensor to sense a voltage at a first terminal of the first light emitting element; a plurality of display pixel units including a second pixel circuit and a second light emitting element are provided in the display region; a plurality of dummy pixel units including a third pixel circuit and a third light emitting element are provided in the dummy region; and the first light emitting element, the second light emitting element, and the third light emitting element are all connected to a common voltage terminal.
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73.发明授权公开(公告)号：US11295105B2
公开(公告)日：2022-04-05
申请号：US16765295
申请日：2019-05-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Shengji Yang , Xue Dong , Xiaochuan Chen , Hui Wang , Pengcheng Lu , KuanTa Huang
Abstract: An ultrasonic sensing circuitry is disclosed which includes an ultrasonic sensor circuit, an input circuit, a reset circuit, a storage circuit, a selection circuit, a source follower, and a compensation circuit. The ultrasonic sensor circuit generates a sensing voltage corresponding to a received ultrasonic signal to provide the sensing voltage to a first node. The input circuit provides the voltage of the first node to a second node. The reset circuit resets the voltage of the second node. The storage circuit stores a voltage difference between the second node and a second supply voltage terminal. The selection circuit provides a third supply voltage to a third node. The source follower outputs a current corresponding to a voltage between a first electrode and a control electrode via an output terminal. The compensation circuit provides a compensated sensing voltage to a control electrode of the source follower.
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公开(公告)号：US11289010B2
公开(公告)日：2022-03-29
申请号：US16763348
申请日：2019-05-22
Applicant: BOE Technology Group Co., Ltd.
Inventor： Shengji Yang , Xiaochuan Chen , Hui Wang , Kuanta Huang , Pengcheng Lu
Abstract: The present application discloses a pixel driving circuit with touch-sensing function. The driving circuit includes a first drive-control sub-circuit, a display-drive sub-circuit, a second drive-control sub-circuit, and an emission-control sub-circuit connected in series to generate a drive-current to drive a light-emission device in the subpixel under control of an emission-control signal in a respective one of multiple emission duty periods of a cycle time for displaying one frame of image. The drive circuit also includes a data-input sub-circuit and a charge sub-circuit to set a first voltage to the control terminal of the display-drive sub-circuit. Additionally, the drive circuit includes a photo-sensing sub-circuit configured to reset a photo-sensing device integrated with the light-emission device in the subpixel for touch sensing in a touch-sensing period before entering any one of the multiple emission duty periods of the cycle time.
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公开(公告)号：US11209690B2
公开(公告)日：2021-12-28
申请号：US16660925
申请日：2019-10-23
Applicant: BOE Technology Group Co., Ltd.
Inventor： Shengji Yang , Xue Dong , Xiaochuan Chen , Hui Wang , Kuanta Huang , Pengcheng Lu
IPC: G02F1/1335 , G02F1/13357 , G02F1/1362
Abstract: A display panel and a display device are disclosed. The display panel includes: color photoresist patterns, black matrix patterns for spacing the color photoresist patterns from each other; and a plurality of light-modulating components on sides of the color photoresist patterns and the black matrix patterns away from a light-emitting surface of the display panel, wherein each of the color photoresist patterns corresponds to at least one of the light-modulating components, and the light-modulating components are configured to converge light incident thereon, and to transmit the converged light to the color photoresist patterns corresponding thereto.
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Patent Agency Ranking
公开(公告)号：US11205379B2
公开(公告)日：2021-12-21
申请号：US16617060
申请日：2019-02-13
Applicant: BOE Technology Group Co., Ltd.
Inventor： Shengji Yang , Xue Dong , Xiaochuan Chen , Hui Wang , Pengcheng Lu
IPC: G09G3/3233 , G09G3/3266 , G09G3/3275
Abstract: Provided are a pixel circuit and a drive method thereof, a display substrate, and a display device. The pixel circuit includes a current source sub-circuit and a voltage divider sub-circuit. The current source sub-circuit is configured to update a stored drive voltage based on a voltage at the data signal terminal when the gate signal terminal receives a gate drive signal, and output a drive current based on the stored drive voltage when the switch signal terminal receives a light-emitting control signal, a current value of the drive current being positively correlated to a voltage value of the drive voltage. The voltage divider sub-circuit is configured to regulate an equivalent resistance value of the voltage divider sub-circuit in an output path of the drive current based on a signal received by the voltage division control signal terminal.
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公开(公告)号：US20210365659A1
公开(公告)日：2021-11-25
申请号：US16626791
申请日：2018-12-03
Applicant: BOE Technology Group Co., Ltd.
Inventor： Shengji Yang , Xue Dong , Xiaochuan Chen , Hui Wang , Pengcheng Lu
Abstract: An integrated photo-sensing detection display substrate having a subpixel region and an inter-subpixel region. The integrated photo-sensing detection display substrate includes a base substrate; a plurality of light emitting elements on the base substrate and configured to emit light, a portion of the light being totally reflected by a surface thereby forming totally reflected light; a light shielding layer between the plurality of light, emitting elements and the base substrate configured to block at least a portion of diffusedly reflected light from passing through, the light shielding layer having a light path aperture in the inter-subpixel region allowing at least a portion of the totally reflected light to pass through thereby forming a signal-enriched light beam; a diffraction grating layer configured to at least partially collimate the signal-enriched light beam thereby forming a collimated light beam; and a photosensor configured to detect the collimated light beam.
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78.发明申请公开(公告)号：US20210365145A1
公开(公告)日：2021-11-25
申请号：US16606349
申请日：2019-02-25
Applicant: BOE Technology Group Co., Ltd.
Inventor： Shengji Yang , Xue Dong , Xiaochuan Chen , Hui Wang , Pengcheng Lu
Abstract: A pixel circuit, an array substrate, a display panel and a method of driving the same, and a display device. The pixel circuit includes: a light emitting device; a light sensitive touch control sub-circuit, connected to a first scan terminal, a second scan terminal, a data signal terminal and a signal reading line, the light sensitive touch control sub-circuit being configured to generate a detection signal based on a light intensity under a control of a first scan signal from the first scan terminal and a data signal from the data signal terminal and to output the detection signal through the signal reading line; and a light emitting driving control sub-circuit, connected to the first scan terminal, the second scan terminal and the data signal terminal, the light emitting driving control sub-circuit being configured to drive the light emitting device.
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公开(公告)号：US11132934B2
公开(公告)日：2021-09-28
申请号：US16641737
申请日：2019-08-16
Inventor： Yongxian Xie , Jinliang Liu , Hui Wang , Miao Zhang
IPC: G09G3/20
Abstract: A shift register unit, a gate driving circuit, a display device, and a driving method are provided. The shift register unit includes an input circuit, an output circuit, and a first node control circuit. The input circuit is configured to charge a first node in response to an input signal; the output circuit is configured to output an output signal at an output terminal under control of a level signal of the first node; and the first node control circuit is configured to receive a precharge control signal from a precharge control terminal and charge the first node in response to the precharge control signal before the output terminal outputs the output signal.
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公开(公告)号：US11094260B2
公开(公告)日：2021-08-17
申请号：US16608368
申请日：2019-04-12
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Shengji Yang , Xue Dong , Xiaochuan Chen , Hui Wang
IPC: G09G3/3258 , G09G3/3275
Abstract: A pixel circuit, a display panel, a display device, and a method of driving a display device are provided. The pixel circuit includes a driving sub-circuit, a first data writing sub-circuit, a second data writing sub-circuit, and a storage sub-circuit. The first data writing sub-circuit is configured to write a first data voltage to a first terminal of the storage sub-circuit in a case of being turned on under control of a first data scanning signal; the second data writing sub-circuit is configured to write a second data voltage to a second terminal of the storage sub-circuit in a case of being turned on under control of a second data scanning signal; and the driving sub-circuit is configured to drive a light emitting element to emit light under control of the voltage at the first terminal of the storage sub-circuit.
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