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公开(公告)号：US20220148512A1
公开(公告)日：2022-05-12
申请号：US17426949
申请日：2020-10-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Can ZHENG , Yu FENG , Guangliang SHANG , Libin LIU , Shiming SHI
IPC: G09G3/3266
Abstract: A gate driving unit, a gate driving circuit, a gate driving method, and a display device are provided. The gate driving unit includes a first output circuit and a second output circuit; the second output circuit comprises a first output sub-circuit; the first output circuit is respectively electrically connected to the first node, the second node and the first gate driving signal output end and is configured to control the first gate driving signal output end to output a first gate driving signal under the control of the potential of the first node and the potential of the second node; the first output sub-circuit is respectively electrically connected to the first node, the second gate driving signal output end and the first clock signal end, and is configured to control the second gate driving signal output end to be connected to the first clock signal end.
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公开(公告)号：US20220122546A1
公开(公告)日：2022-04-21
申请号：US17563375
申请日：2021-12-28
IPC: G09G3/3266 , G09G3/3233 , G09G3/3291
Abstract: A display panel and a display device are disclosed, the display panel includes a plurality of display regions, a peripheral region surrounding the plurality of display regions, a plurality of light-emission control scan driving circuits provided in the peripheral region, a first start signal line, and a second start signal line. The first start signal line is different from the second start signal line, the plurality of display regions include a first display region and a second display region, the plurality of light-emission control scan driving circuits include a first light-emission control scan driving circuit and a second light-emission control scan driving circuit, the first start signal line is configured to provide a first start signal to the first light-emission control scan driving circuit, and the second start signal line is configured to provide a second start signal to the second light-emission control scan driving circuit.
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公开(公告)号：US20220028338A1
公开(公告)日：2022-01-27
申请号：US17293536
申请日：2020-08-10
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/3241 , G09G3/3291 , G09G3/20
Abstract: A pixel circuit and a driving method thereof, and a display panel. The pixel circuit includes a reset circuit, a data writing circuit, a compensation circuit, and a driving circuit. The reset circuit is configured to apply a reset voltage to the first terminal of the light-emitting element to reset the first terminal of the light-emitting element; the data writing circuit is configured to write a data signal to the first terminal of the driving circuit; the compensation circuit is configured to write the reset voltage into the control terminal of the driving circuit when the reset circuit applies the reset voltage, and to write a compensation signal based on the data signal into the control terminal of the driving circuit when the data writing circuit writes the data signal; and the driving circuit is configured to control a driving current for driving the light-emitting element to emit light.
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154.发明申请公开(公告)号：US20210408218A1
公开(公告)日：2021-12-30
申请号：US16499697
申请日：2019-03-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Abstract: An OLED display substrate, a manufacturing method thereof, and a display device are provided. The OLED display substrate includes a base substrate, a conductive pattern, a driving circuit layer, an anode layer, a light-emitting layer and a cathode layer. The driving circuit layer, the anode layer, the cathode layer and the light-emitting layer are arranged at a same side of the base substrate. The conductive pattern is arranged between the base substrate and the driving circuit layer and electrically connected to the cathode layer through a plurality of via holes.
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公开(公告)号：US20210407425A1
公开(公告)日：2021-12-30
申请号：US16766094
申请日：2019-07-01
Inventor： Weiyun HUANG , Libin LIU , Chao ZHENG , Yao HUANG , Meng LI , Yue LONG
IPC: G09G3/3266 , G09G3/00
Abstract: A display panel, a display device and a driving method are disclosed, the display panel includes a plurality of display regions, the plurality of display regions include a first display region and a second display region, the first display region includes rows of first pixel units, the second display region includes rows of second pixel units; the display panel further includes a first light-emission control scan driving circuit for controlling the rows of first pixel units to emit light, and a second light-emission control scan driving circuit for controlling the rows of second pixel units to emit light, and the driving method includes: providing a first start signal to the first light-emission control scan driving circuit, and providing a second start signal to the second light-emission control scan driving circuit; the second start signal and the first start signal are applied independently, respectively.
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Patent Agency Ranking
156.发明申请公开(公告)号：US20210406501A1
公开(公告)日：2021-12-30
申请号：US16472438
申请日：2018-12-06
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Jianchao ZHU , Libin LIU
Abstract: A fingerprint identification device, a display panel, a fabrication method thereof, and a display device are disclosed. The fingerprint identification device includes a fingerprint sensor, an aperture diaphragm, and a first shielding structure. The fingerprint sensor includes a plurality of sensing units; the aperture diaphragm is on a light incident side of the fingerprint sensor and includes an aperture through which light is allowed to be incident on at least one sensing unit of the fingerprint sensor; and the first shielding structure is on a side of the aperture diaphragm facing away from the fingerprint sensor, and surrounds at least a portion of the aperture.
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公开(公告)号：US20210367136A1
公开(公告)日：2021-11-25
申请号：US16609296
申请日：2019-05-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: H01L41/113 , H01L41/047
Abstract: The embodiments of the present disclosure disclose an ultrasonic sensor, a manufacturing method thereof, and a display device. The ultrasonic sensor includes a substrate and at least one sensor component located on the substrate. The sensor component includes a first electrode, a second electrode, and a piezoelectric layer located between the first electrode and the second electrode. The substrate is provided with a groove on a side close to the sensor component, and the orthographic projection of the piezoelectric layer on the substrate has a portion overlapping with a region of the groove in the substrate.
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公开(公告)号：US20210366395A1
公开(公告)日：2021-11-25
申请号：US16500747
申请日：2019-05-13
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Qian YANG , Libin LIU , Qiang WANG
IPC: G09G3/3258 , G06K9/00 , G09G3/3266 , G09G3/3275
Abstract: A pixel circuit, a display panel, and a driving method. The pixel circuit includes a data writing circuit, an ultrasonic acquiring and converting circuit, a storage circuit, a driving circuit, an output control circuit, and a light emitting device. The ultrasonic acquiring and converting circuit converts a received ultrasonic signal into a converted electrical signal, and provides the converted electrical signal to the data writing circuit; the data writing circuit provides the converted electrical signal or a data signal to a first node; the driving circuit provides a recognition signal obtained according to the converted electrical signal or a driving signal to the fourth node; the storage circuit maintains a voltage difference between the first node and the second node stable; the output control circuit provides a level of the fourth node to a third node; the third node outputs the recognition signal.
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公开(公告)号：US20210343752A1
公开(公告)日：2021-11-04
申请号：US16619227
申请日：2019-03-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD
IPC: H01L27/12 , H01L29/786 , H01L29/66
Abstract: An array substrate, a manufacturing method thereof, and a display device are provided. The array substrate includes: a base substrate; a first thin film transistor located on the base substrate and including a first active layer; and a second thin film transistor located on the base substrate and including a second active layer; a matrix material of the first active layer is the same as that of the second active layer, and the first active layer and the second active layer satisfy at least one of the following conditions: a carrier mobility of the first active layer is greater than that of the second active layer, and a carrier concentration of the first active layer is greater than that of the second active layer. The array substrate is employed to compensate a difference in threshold voltage caused by a difference in channel width-to-length ratio of different thin film transistors.
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公开(公告)号：US20210208446A1
公开(公告)日：2021-07-08
申请号：US16768632
申请日：2019-12-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Qian YANG , Pinfan WANG , Libin LIU , Chunyan XIE
IPC: G02F1/1333 , G02F1/1339 , H01L51/00 , H01L51/52
Abstract: The present disclosure relates to a flexible display substrate and a flexible display device. The flexible display substrate includes a flexible base substrate and a pixel layer. The flexible base substrate includes: a plurality of opening regions, as well as a plurality of island regions and a plurality of bridge regions divided by the plurality of opening regions; and a pixel layer including a plurality of display units arranged in the plurality of island regions respectively, in which each of the plurality of display units is provided with a first groove, the first groove divides the corresponding display units into a display section and a dam section, and at least a part of the dam section is located between the display section and the bridge region adjacent to the display section.
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