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公开(公告)号：US11250779B2
公开(公告)日：2022-02-15
申请号：US16489750
申请日：2018-12-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Shengji Yang , Xue Dong , Xiaochuan Chen , Hui Wang , Pengcheng Lu
IPC: G09G3/3258
Abstract: A pixel circuit includes a light-emitting element, a data write-in sub-circuit, a driving sub-circuit, a storage sub-circuit, a light-emission control sub-circuit, and a step-down sub-circuit. The step-down sub-circuit is configured to, at a charging compensation stage, step down a data voltage to acquire a first step-down voltage, and output the first step-down voltage via a control node. The storage sub-circuit is configured to, at the charging compensation stage, charge or discharge the control node to enable a potential at the control node to be the first step-down voltage, and at a light-emitting stage, maintain the potential at the control node as the first step-down voltage. The driving sub-circuit is configured to, at the light-emitting stage, enable a first end of the driving sub-circuit to be electrically connected to a first electrode of the light-emitting element under the control of the control node, to drive the light-emitting element to emit light.
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公开(公告)号：US20220036027A1
公开(公告)日：2022-02-03
申请号：US17280374
申请日：2020-08-21
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xiufeng Li , Yingming Liu , Haisheng Wang , Xue Dong , Yuzhen Guo , Lijun Zhao , Chenyang Zhang , Yaqian Ji , Yanling Han , Peixiao Li
Abstract: A fingerprint identification module and a driving method therefor, and a display apparatus. The fingerprint identification module includes a base substrate and a plurality of fingerprint identification regions located on the base substrate, each fingerprint identification region includes a plurality of receiving electrodes, a piezoelectric material layer and a plurality of driving electrodes; and the plurality of receiving electrodes, the piezoelectric material layer and the plurality of driving electrodes form a plurality of ultrasonic sensors. Each fingerprint identification region is correspondingly provided with at least one driving chip, the plurality of driving electrodes in each fingerprint identification region is connected to an output terminal of the at least one driving chip; and the at least one driving chip is configured to apply a driving voltage to the plurality of driving electrodes to driving the plurality of ultrasonic sensors in the corresponding fingerprint identification region to perform fingerprint identification.
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613.发明授权公开(公告)号：US11238257B2
公开(公告)日：2022-02-01
申请号：US16086396
申请日：2018-03-01
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yingming Liu , Xue Dong , Haisheng Wang , Chunwei Wu , Xiaoliang Ding , Rui Xu , Changfeng Li
Abstract: A fingerprint identification substrate, a fingerprint identification method and a display device are provided. The fingerprint identification substrate includes a base substrate, a transmitting part and a receiving part provided on the base substrate, and a fingerprint detector. At least a portion of the transmitting part and at least a portion of the receiving part may be provided in a single layer. The transmitting part is configured to generate an ultrasonic signal. The receiving part is configured to receive the ultrasonic signal reflected by a finger, convert the ultrasonic signal into an electric signal, and output the electric signal to the fingerprint detector. The fingerprint detector is configured to determine fingerprint information according to the electric signal output from the receiving part.
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公开(公告)号：US11237310B2
公开(公告)日：2022-02-01
申请号：US16087138
申请日：2018-03-28
Inventor： Meili Wang , Xue Dong , Ming Zhu
Abstract: A display component includes a transflective layer, a reflective layer, and at least one sidewall. The reflective layer is arranged opposing to the transflective layer, and the at least one sidewall is arranged between the reflective layer and the transflective layer. The transflective layer, the reflective layer, and the at least one sidewall are together configured, upon an input of an incident light through the transflective layer, to output a light of a target color out through the transflective layer. One or more of the at least one sidewall comprise at least one light-conversion layer configured to emit a light of the target color upon excitement by a light of a different color shedding thereupon. The display component can be configured to output a red light, a green light, or a blue light.
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公开(公告)号：US11181783B2
公开(公告)日：2021-11-23
申请号：US16642957
申请日：2018-10-17
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xue Dong , Xinxing Wang , Liwei Liu , Yinglong Huang , Jaegeon You , Yunsik Im , Hyunsic Choi , Heecheol Kim
IPC: G02F1/133 , G02F1/1339 , G02F1/1362
Abstract: A display panel is provided. The display panel includes a first substrate faces a second substrate. The first substrate includes a plurality of first spacers and a plurality of second spacers. The second substrate includes a corresponding plurality of first protrusions and a plurality of second protrusions. A sum of a height of the first protrusion and a height of the first spacer is greater than that of the second spacer. Each of the first spacers includes at least one protrusion. A length of an orthographic projection of each protrusion on a plane of the first substrate is longer in one direction.
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Patent Agency Ranking
公开(公告)号：US11176864B2
公开(公告)日：2021-11-16
申请号：US16332947
申请日：2018-08-29
Inventor： Yafei Li , Bo Gao , Wei Sun , Lingyun Shi , Hao Zhang , Guangquan Wang , Ming Chen , Xue Dong , Yue Li
IPC: G09G3/20
Abstract: A method for driving a display panel, a display drive circuit, a display device and a computer device are disclosed. After receiving an image to be displayed sent by a graphics processor, a data drive chip controls respective rows of sub-pixels containing a high-definition display area in a connected display panel to be scanned line by line according to a position of the high-definition display area in the image to be displayed, and at the same time, the data drive chip controls respective rows of sub-pixels containing only a low-definition display area in the display panel to be scanned per N rows simultaneously according to a position of the low-definition display area in the image to be displayed, where N is an even number greater than 1.
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公开(公告)号：US20210343819A1
公开(公告)日：2021-11-04
申请号：US16344923
申请日：2018-11-02
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yingming Liu , Xue Dong , Haisheng Wang , Xiaoliang Ding , Changfeng Li , Wei Liu
IPC: H01L27/32 , G09G3/3258
Abstract: A display panel which may include a plurality of sub-pixel units (1) and a plurality of photosensitive detection units (2) corresponding to the plurality of sub-pixel units (1) respectively. Each of the plurality of the photosensitive detection units (2) may include at least two photosensitive sensors (21).
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公开(公告)号：US20210335327A1
公开(公告)日：2021-10-28
申请号：US16343583
申请日：2018-06-04
Inventor： Yafei Li , Hsinchung Lo , Bo Gao , Wei Sun , Lingyun Shi , Hao Zhang , Ming Chen , Tiankuo Shi , Jinxing Liu , Wenjia Sun , Xue Dong
Abstract: A method for processing image data with reduced transmission bandwidth is provided. The method includes receiving a first set of data for image in a first resolution and receiving a center coordinate. The method further includes determining a high-definition region including an area and a boundary centered on the center coordinate. Additionally, the method includes rendering the first set of data based on the center coordinate and the area of the high-definition region to obtain a first subset of data. Furthermore, the method includes rendering a set of data compressed from the first set of data to obtain a second subset of data beyond the boundary. Moreover, the method includes transmitting a second set of image data to the display panel combining the first subset of data for display image in the first resolution and the second subset of data to display image in the second resolution.
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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：US11094261B2
公开(公告)日：2021-08-17
申请号：US16613293
申请日：2019-03-06
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xiaoliang Ding , Xue Dong , Haisheng Wang , Yingming Liu , Wei Liu , Changfeng Li
IPC: G09G3/3258
Abstract: A pixel circuit includes a driving sub-circuit and a photosensitive detection circuit. The driving sub-circuit is coupled to a self-luminescent device. The driving sub-circuit is configured to drive the self-luminescent device to emit light. The photosensitive detection circuit is configured to detect a luminance of the self-luminescent device, and transmit an electrical signal for characterizing the luminance of the self-luminescent device to a signal readout terminal.
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