Patents by Inventor Xueguang Hao
Xueguang Hao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11963420Abstract: There is provided a display substrate and a display device. The display substrate includes a first metal layer, a first insulating layer, a metal oxide layer, a second insulating layer and a second metal layer which are stacked; wherein the metal oxide layer comprises a first pattern, a second pattern and a capacitance pattern, the first metal layer comprises a first electrode plate, there is at least a first overlapping region between the first electrode plate and the capacitance pattern to form a first storage capacitor, the second metal layer comprises a second electrode plate, there is at least a second overlapping region between the second electrode plate on the base substrate and the capacitance pattern to form a second storage capacitor, and the first electrode plate and the second electrode plate have same potential.Type: GrantFiled: July 15, 2020Date of Patent: April 16, 2024Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Chen Xu, Xueguang Hao, Yong Qiao, Xinyin Wu
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Publication number: 20240119897Abstract: A pixel circuit and a driving method therefor and a display panel are provided. The pixel circuit includes a driving circuit, a data writing circuit, a storage circuit, and a first reset circuit; the driving circuit includes a control terminal, a first terminal, and a second terminal, and is configured to control a driving current flowing through the first terminal and the second terminal for driving a light-emitting element to emit light; the data write circuit is configured to write a data signal into the control terminal of the driving circuit; the storage circuit is configured to store the data signal; the first reset circuit is configured to apply a first initialization voltage to the control terminal of the driving circuit; the driving circuit and the data write circuit each include an N-type thin film transistor; and the first reset circuit includes an N-type oxide thin film transistor.Type: ApplicationFiled: July 5, 2022Publication date: April 11, 2024Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Zhenhua Zhang, Dongfang Yang, Xilei Cao, Xueguang Hao, Lang Liu, Jingyi Feng, Changlong Yuan, Xiaoxin Li, Li Zhu
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Publication number: 20240112623Abstract: A display substrate, comprising a base substrate and a scan drive control circuit which is disposed in a non-display area of the base substrate. The scan drive control circuit comprises an input circuit, an output control circuit, and an output circuit. The output control circuit is connected to the input circuit and the output circuit. The output control circuit comprises a first node control capacitor and a second node control capacitor. The length of the first node control capacitor in a first direction LC1k, the length of the second node control capacitor in the first direction LC2k and the length of the scan drive control circuit in the first direction LY satisfy the following formula: L C ? 1 ? k L Y < L C ? 2 ? k L Y ; L C ? 1 ? k L Y < 0.2 .Type: ApplicationFiled: July 8, 2022Publication date: April 4, 2024Inventors: Miao LIU, Xueguang HAO, Jingbo XU, Xing YAO, Jingquan WANG, Xinyin WU, Xinguo LI, Zhichong WANG
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Publication number: 20240107850Abstract: A display substrate and a display apparatus. The display substrate has a display region (AA) and an opening (O) located in the display region (AA). The opening (O) penetrates the display substrate, and the display substrate comprises a base substrate (BS), a driving circuit layer, a light-emitting device layer, an encapsulation layer and a touch layer (TL). The driving circuit layer is arranged on the base substrate (BS), and comprises a first signal line (L1) at least partially surrounding the opening (O). The light-emitting device layer is arranged on the side of the driving circuit layer distant from the base substrate (BS). The encapsulation layer is arranged on the side of the light-emitting device layer distant from the base substrate (BS).Type: ApplicationFiled: July 6, 2022Publication date: March 28, 2024Inventors: Jingjing XU, Xueguang HAO, Chunyan LI, Lang LIU, Jingquan WANG
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Patent number: 11916083Abstract: A display substrate has an active area which includes a photosensitive region with a light-transmitting channel. The display substrate includes a base, a pixel circuit layer, a first insulating layer and a conductive light-shielding layer. The pixel circuit layer includes pixel circuits and at least one pixel circuit includes a first thin film transistor and a second thin film transistor. The first insulating layer has a first via hole. The conductive light-shielding layer includes a conductive light-shielding pattern that has a first light-transmitting hole. Orthogonal projections of the first light-transmitting hole and of a gap region between the first thin film transistor and the second thin film transistor have a first overlapping region, which the light-transmitting channel penetrates. The conductive light-shielding pattern is coupled with a source electrode or a drain electrode of the first thin film transistor through the first via hole.Type: GrantFiled: June 27, 2020Date of Patent: February 27, 2024Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jianbo Xian, Hongfei Cheng, Yongda Ma, Chen Xu, Xueguang Hao
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Patent number: 11887401Abstract: The present disclosure provides a display backplane, a method for manufacturing the same and a full-screen fingerprint identification display device. The display backplane includes a substrate; a circuit layer disposed on a surface of the substrate; a light emitting device layer disposed on a surface of the circuit layer away from the substrate; and a plurality of fingerprint identification photodetectors disposed in at least one of the circuit layer and the light emitting device layer.Type: GrantFiled: April 20, 2020Date of Patent: January 30, 2024Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Xueguang Hao, Hongfei Cheng, Yongda Ma
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Publication number: 20230343287Abstract: Embodiments of the present disclosure provide a pixel circuitry, a drive method thereof, an array substrate and a display panel. The pixel circuitry may comprise a drive circuit, a data write circuit, an initialization circuit, a first light emission control circuit, a first storage circuit, a second storage circuit and a second light emission control circuit. The drive circuit may be coupled to a first node, a second node and a third node, and may provide a drive current to a light emitting device. The first storage circuit may store a voltage difference between the first voltage signal terminal and the second node. The second storage circuit may store a voltage difference between the first node and the second node.Type: ApplicationFiled: February 7, 2021Publication date: October 26, 2023Inventors: Hongfei CHENG, Xueguang HAO
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Publication number: 20230305653Abstract: A display panel and a display device are provided, the display panel includes a base substrate and a touch wire including a first sub-portion and a second sub-portion, a main surface of the base substrate is a first surface; the second sub-portion includes a first height portion and a second height portion, a height of the first height portion relative to the first surface is smaller than a height of the second height portion relative to the first surface, line widths of respective positions of the first height portion are inversely proportional to heights of the respective positions of the first height portion relative to the first surface, and line widths of respective positions of at least part of the second height portion are proportional to heights of the respective positions of the at least part of the second height portion relative to the first surface.Type: ApplicationFiled: June 29, 2022Publication date: September 28, 2023Inventors: Chunyan LI, Jingquan WANG, Xueguang HAO, Xinyin WU, Xinguo LI
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Patent number: 11770909Abstract: A display device includes: a display panel; a housing configured to support and protect the display panel; a bracket disposed between the display panel and the housing; a plurality of sensors fixed on the bracket; a window located in the display panel or in the housing, and configured to expose at least one of the plurality of sensors; and a driver configured to control the bracket to rotate in a plane parallel to the display panel, and to control the bracket to stop rotating when a required sensor rotates to a position of the window.Type: GrantFiled: June 24, 2020Date of Patent: September 26, 2023Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yongda Ma, Jianbo Xian, Xueguang Hao, Chen Xu
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Patent number: 11705048Abstract: A shift register unit, a circuit structure, a gate drive circuit, a drive circuit and a display device are provided. A shift register unit includes a substrate and an input circuit, a reset circuit, a first output circuit, a first output terminal, a first connection conductive portion connecting both the input circuit and the reset circuit, a second connection conductive portion connecting both the reset circuit and the first output circuit, and a third connection conductive portion connecting both the first output circuit and the first output terminal, all of which are on the substrate.Type: GrantFiled: June 21, 2022Date of Patent: July 18, 2023Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jianbo Xian, Chen Xu, Xueguang Hao, Yong Qiao
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Publication number: 20230138001Abstract: A display panel and a display device are provided. The display panel includes a plurality of pixel units, each pixel unit includes a pixel circuit and a light-emitting element, the pixel circuit is configured to drive the light-emitting element, the pixel circuit includes a driving transistor, the plurality of pixel units include a first pixel unit and a second pixel unit, the first pixel unit is configured to emit light of a first color, the second pixel unit is configured to emit light of a second color, the driving transistor of the pixel circuit of the first pixel unit includes a first channel, and the driving transistor of the pixel circuit of the second pixel unit includes a second channel, a width-to-length ratio of the first channel is greater than that of the second channel, and a shape of the first channel is different from that of the second channel.Type: ApplicationFiled: November 3, 2021Publication date: May 4, 2023Applicants: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xueguang HAO, Yongda MA, Hongfei CHENG
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Patent number: 11631356Abstract: A display panel and a display device are provided, the display panel includes a gate driving circuit, a first pixel module, and a second pixel module, the first pixel module includes a first pixel circuit, and the second pixel module includes a second pixel circuit; the gate driving circuit respectively provides corresponding gate driving signals for the first pixel circuit and the second pixel circuit; in the first display region, the number of columns of the pixel circuit included by the first pixel module is greater than the maximum number of columns of the pixel circuit included by the second pixel module in the second display region; the display panel further includes a loading structure arranged in a non-display region; the load structure is electrically connected to the gate wiring; the gate wiring is wiring between the gate driving circuit and the second pixel circuit for providing the corresponding gate driving signals to the second pixel circuit.Type: GrantFiled: December 20, 2021Date of Patent: April 18, 2023Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Xueguang Hao, Hongfei Cheng, Yongda Ma
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Publication number: 20230096411Abstract: Disclosed are an OLED display panel and a display device. The OLED display panel includes a substrate, a plurality of light emitting components arranged in an array, and a light resistance structure between the light emitting components. The light resistance structure prevents the reflected light of the emergent light from the light emitting components, from emitting out from one side of the substrate between the light emitting components.Type: ApplicationFiled: April 11, 2020Publication date: March 30, 2023Inventors: Xueguang HAO, Yong QIAO, Xinyin WU, Hongfei CHENG
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Patent number: 11594191Abstract: The present disclosure relates to the field of display technologies, and provides a gamma circuit. The gamma circuit includes: a plurality of positive gamma voltage output terminals, a plurality of negative gamma voltage output terminals in one-to-one correspondence with the plurality of positive gamma voltage output terminals, and a plurality of voltage conversion circuits. Each of the voltage conversion circuits is configured to output a negative gamma reference voltage to the negative gamma voltage output terminal based on a positive gamma reference voltage output by the positive gamma voltage output terminal corresponding to the negative gamma voltage output terminal.Type: GrantFiled: December 20, 2021Date of Patent: February 28, 2023Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology GroUp Co., Ltd.Inventors: Xueguang Hao, Yongda Ma, Hongfei Cheng
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Patent number: 11569302Abstract: A pixel arrangement structure, a display substrate and a mask group are disclosed. The pixel arrangement structure includes a plurality of pixel groups, each of the plurality of pixel groups includes one red sub-pixel, two green sub-pixels and one blue sub-pixel; the red sub-pixel and the blue sub-pixel are arranged along a first direction; the two green sub-pixels are arranged along a second direction. Four vertexes included in the red sub-pixel are located in a first virtual rhombus and are substantially coincident with four vertexes of the first virtual rhombus, respectively; four vertexes included in the blue sub-pixel are located in a second virtual rhombus and are substantially coincident with four vertexes of the second virtual rhombus, respectively; at least one of the red or the blue sub-pixel has a shape of a corresponding virtual rhombus with each side of the virtual rhombus being an inwardly concaved side.Type: GrantFiled: June 23, 2020Date of Patent: January 31, 2023Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Fengli Ji, Hongli Wang, Xueguang Hao
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Patent number: 11569329Abstract: The present disclosure discloses an array substrate and a detection method therefor, a display panel, and a display device. The array substrate includes: a base substrate, wherein the base substrate has a display area and a peripheral area surrounding the display area; a plurality of sub-pixel units, wherein the plurality of sub-pixel units are arrayed in the display area; a plurality of data lines, wherein the data lines are electrically connected to the sub-pixel units in corresponding columns; at least one first switching transistor, wherein the first switching transistor is located at a first side of the peripheral area, a drain of the first switching transistor is electrically connected to one of the data lines, and the data line connected to the drain of the first switching transistor is a first data line; a gate control line; and at least one detection line.Type: GrantFiled: May 30, 2019Date of Patent: January 31, 2023Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Hongfei Cheng, Xueguang Hao
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Patent number: 11545088Abstract: A display panel and a display device are provided. The display panel includes: a substrate, a plurality of pixel units, a functional signal line, and a first conductive structure. The substrate includes a display area and a peripheral area on at least one side of the display area, the plurality of pixel units are in the display area, each pixel unit includes a light-emitting unit and a pixel circuit structure for providing a driving current to the light-emitting unit, and the light-emitting unit is an electroluminescent element. The functional signal line is connected with the pixel circuit structure of each pixel unit and provides a common voltage signal for the pixel circuit structure. The first conductive structure is connected in parallel with the functional signal line and is located at a layer different from that of the functional signal line.Type: GrantFiled: January 11, 2019Date of Patent: January 3, 2023Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Chen Xu, Xueguang Hao, Jianbo Xian, Yong Qiao, Xinyin Wu
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Publication number: 20220383655Abstract: The present disclosure provides a display backplane, a method for manufacturing the same and a full-screen fingerprint identification display device. The display backplane includes a substrate; a circuit layer disposed on a surface of the substrate; a light emitting device layer disposed on a surface of the circuit layer away from the substrate; and a plurality of fingerprint identification photodetectors disposed in at least one of the circuit layer and the light emitting device layer.Type: ApplicationFiled: April 20, 2020Publication date: December 1, 2022Inventors: Xueguang HAO, Hongfei CHENG, Yongda MA
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Patent number: 11508804Abstract: The present disclosure discloses an organic light emitting display device. The organic light emitting display device includes a substrate, an initializing voltage input line, a first electrode line, a thin film transistor, and an organic light emitting diode arranged on the substrate. The thin film transistor includes a first electrode, a second electrode and a control electrode, and the first electrode is coupled to the first electrode line, the initializing voltage input line is provided in the same layer and is made of the same material as one of the first electrode, the second electrode and the control electrode of the thin film transistor, and an extension direction of the initializing voltage input line is substantially the same as an extension direction of the first electrode line.Type: GrantFiled: February 22, 2021Date of Patent: November 22, 2022Assignees: ORDOS YUANSHENG OPTOELECTRONICS, CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Liman Peng, Qi Liu, Dianjie Hou, Xueguang Hao, Jin Yang, Zihua Li, Yan Wu, Guoping Zhang, Haifeng Xu, Lei Wang, Wenxiu Li, Jianqiang Wang, Fan Yang
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Patent number: 11495179Abstract: An array substrate has a display area and a peripheral area located outside the display area. The display area includes two first sides that are substantially parallel and arc sides connected to ends of the first sides. The array substrate includes at least one gate driving circuit. Each gate driving circuit includes GOA units sequentially distributed along each arc side in at least one arc side and active GOA units sequentially distributed along a first side connected to the arc side. The GOA units includes at least one active GOA unit and at least one dummy GOA unit. Each active GOA unit is configured to provide a driving signal to at least one sub-pixel. A distance between two adjacent GOA units in the GOA units is approximately same as a distance between two adjacent active GOA units in the active GOA units.Type: GrantFiled: July 22, 2020Date of Patent: November 8, 2022Assignee: Beijing BOE Technology Development Co., Ltd.Inventors: Xueguang Hao, Yong Qiao, Xinyin Wu