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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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公开(公告)号：US20210166601A1
公开(公告)日：2021-06-03
申请号：US17044148
申请日：2020-03-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Guangliang SHANG , Lijun YUAN , Haoliang ZHENG , Libin LIU , XING YAO , Seungwoo HAN
IPC: G09G3/20
Abstract: The present disclosure provides a gate driving unit, a gate driving method, a gate driving circuitry and a display device. The gate driving unit includes a reverse-phase gate driving signal output end, a normal-phase gate driving signal output end, an input circuitry, an output control circuitry, an input node control circuitry and an output circuitry. The input circuitry is configured to control an input end to be electrically connected to an input node under the control of a first clock signal. The output control circuitry is configured to control a potential at an output node under the control of a potential at the input node and a second clock signal. The input node control circuitry is configured to control the potential at the input node in accordance with the potential at the output node under the control of the second clock signal. The output circuitry is configured to output a reverse-phase gate driving signal and output a normal-phase gate driving signal in accordance with the potential at the output node.
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Patent Agency Ranking
公开(公告)号：US20210090484A1
公开(公告)日：2021-03-25
申请号：US16964465
申请日：2019-09-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Guangliang SHANG , Can ZHENG , Jiangnan LU , Tian DONG , Libin LIU , Long HAN , Shiming SHI , Dawei WANG
Abstract: A shift register unit, a driving method, a gate driving circuit and a display device are provided. The shift register unit includes a first gate driving output circuit and a second gate driving output circuit. The first gate driving output circuit is used to output a first gate driving signal through the first gate driving signal output terminal; the second gate driving output circuit is used to generate a second gate driving signal outputted simultaneously with the first gate driving signal based on the first gate driving signal, a first clock signal and a second clock signal. In the present disclosure, the second gate driving output circuit is added, the first gate driving signal, the first clock signal, and the second clock signal are used to generate an inverted second gate driving signal, so that positive and negative switching control signals are generated by one stage of shift register unit.
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公开(公告)号：US20210035490A1
公开(公告)日：2021-02-04
申请号：US16096102
申请日：2018-01-15
Abstract: The present disclosure provides a display device, a pixel circuit and its control method, the circuit including: a resetting and charging circuit, for resetting a capacitor connected between a gate electrode of the driving transistor of the pixel circuit and an anode of a LED, and then charging the capacitor; a writing circuit, for writing a data signal to the gate electrode of the driving transistor; a driving circuit including the driving transistor, for driving the LED to emit light when the driving transistor receives the data signal; wherein, the driving transistor for driving the LED to emit light is an oxide TFT, and the other transistors in the pixel circuit are low temperature polysilicon (LTPS) TFTs.
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公开(公告)号：US20210020720A1
公开(公告)日：2021-01-21
申请号：US16635058
申请日：2019-01-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: H01L27/32 , H01L27/12 , H01L23/552
Abstract: The present disclosure provides an array substrate, a manufacturing method thereof, and a display device. The array substrate includes: a base substrate, a gate on the base substrate, a conductive wire above the base substrate, a first insulating layer on the gate and the base substrate, and a shielding structure on the base substrate. A first orthographic projection of the conductive wire on the base substrate is spaced apart from a second orthographic projection of the gate on the base substrate. A third orthographic projection of the shielding structure on the base substrate is located between the first orthographic projection and the second orthographic projection. The shielding structure is used to at least partially shield a crosstalk of the conductive wire to the gate.
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公开(公告)号：US20200342808A1
公开(公告)日：2020-10-29
申请号：US16762043
申请日：2019-12-05
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/3233
Abstract: The present disclosure discloses a pixel driving circuit, a pixel circuit, a display panel and a display apparatus, wherein the pixel driving circuit is used for driving a light-emitting element to emit light, and includes: a plurality of switching transistors, wherein each of the switching transistors is an oxide thin film transistor.
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公开(公告)号：US20200152894A1
公开(公告)日：2020-05-14
申请号：US16611110
申请日：2019-01-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Shuai ZHANG , Yueping ZUO , Libin LIU
Abstract: The present disclosure provides a flexible display device and a manufacturing method. The manufacturing method includes: forming a layer of flexible display devices on a support plate; etching the layer of flexible display devices on the support plate to expose a portion of the support plate at a cutting region, the cutting region being a predetermined region between two adjacent flexible display devices; and removing the layer of flexible display devices from the support plate after the etching process so as to obtain a plurality of flexible display devices separated from each other.
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