Patents by Inventor Jinfei NIU
Jinfei NIU 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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Publication number: 20250149522Abstract: A display substrate, including: a base substrate including at least a side edge and a display area; a plurality of pixel units disposed in the display area, a second pixel unit is located on a side of a first pixel unit close to the side edge, edges of the second pixel unit include the side edge, a third pixel unit is located between the first pixel unit and the second pixel unit, and the third pixel unit is adjacent to the second pixel unit; and a plurality of light emitting diode chips disposed on the base substrate, a first light emitting diode chip is located in the first pixel unit, a part of a second light emitting diode chip is located in the second pixel unit, and the other part of the second light emitting diode chip is located in the third pixel unit.Type: ApplicationFiled: January 7, 2025Publication date: May 8, 2025Inventors: Wei Li, Can Wang, Can Zhang, Li Xiao, Minghua Xuan, Lijun Yuan, Jinfei Niu, Jingjing Zhang, Guangcai Yuan
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Patent number: 12295193Abstract: A display substrate and a display device are provided. The display substrate includes light emitting diode chips, each light emitting diode chip includes light emitting units which respectively emit light of different colors, each light emitting unit includes a first electrode, a light emitting layer, a base and a second electrode, and the base and the second electrode are respectively located at both sides of the light emitting layer. In each light emitting diode chip, the light emitting units share the base and the first electrode, the light emitting layers of the light emitting units emit light of the same color, and at least one light emitting unit further includes a first color conversion layer located at a side of the base away from the light emitting layer, so as to convert first color light emitted by the light emitting layer into second color light.Type: GrantFiled: March 11, 2021Date of Patent: May 6, 2025Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Can Wang, Wei Li, Lijun Yuan, Jingjing Zhang, Can Zhang, Jinfei Niu, Ning Cong, Minghua Xuan, Xiaochuan Chen, Xue Dong, Qi Qi
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Patent number: 12283234Abstract: A pixel driving circuit including a driving circuit, a first light emission control circuit and a first digital circuit. The driving circuit is connected to a first power source end, a first node and the light-emitting unit, and is used for providing, according to the voltage of the first node, a driving current for the light-emitting unit by using the first power source end; the first light emission control circuit is connected to a first digital signal end; and the first digital circuit comprises a first signal conversion circuit, and the first signal conversion circuit is connected to a first analog signal end and the first digital signal end and is used for inputting the first digital signal into the first digital signal end according to a first analog signal of the first analog signal end.Type: GrantFiled: April 23, 2024Date of Patent: April 22, 2025Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Can Wang, Yan Qu, Can Zhang, Minghua Xuan, Xiaochuan Chen, Ning Cong, Jinfei Niu, Jingjing Zhang
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Patent number: 12272295Abstract: Provided is a pixel circuit. The pixel circuit includes a data writing circuit, a light-emission adjusting circuit, a light-emission control circuit, and a light-emission driving circuit; wherein the data writing circuit is coupled to a gate signal terminal, a first data signal terminal and a first node; the light-emission adjusting circuit is coupled to a target signal terminal, the first node and a second node; the light-emission control circuit is coupled to the second node, a reference signal terminal, a light-emission control signal terminal and a third node; the light-emission driving circuit is coupled to the third node, the gate signal terminal, a first power supply terminal, a second data signal terminal and a light-emitting element.Type: GrantFiled: June 8, 2021Date of Patent: April 8, 2025Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Ning Cong, Minghua Xuan, Can Zhang, Xiaochuan Chen, Lijun Yuan, Qi Qi, Can Wang, Jinfei Niu
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Patent number: 12266679Abstract: A display substrate and a display device are provided. The display substrate includes light emitting diode chips, each light emitting diode chip includes light emitting units which respectively emit light of different colors, each light emitting unit includes a first electrode, a light emitting layer, a base and a second electrode, and the base and the second electrode are respectively located at both sides of the light emitting layer. In each light emitting diode chip, the light emitting units share the base and the first electrode, the light emitting layers of the light emitting units emit light of the same color, and at least one light emitting unit further includes a first color conversion layer located at a side of the base away from the light emitting layer, so as to convert first color light emitted by the light emitting layer into second color light.Type: GrantFiled: March 11, 2021Date of Patent: April 1, 2025Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Can Wang, Wei Li, Lijun Yuan, Jingjing Zhang, Can Zhang, Jinfei Niu, Ning Cong, Minghua Xuan, Xiaochuan Chen, Xue Dong, Qi Qi
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Publication number: 20250089417Abstract: The present disclosure provides a display apparatus, a display panel and a method of preparing the same. A display panel includes: a base substrate; and a plurality of light-emitting units provided on the base substrate, where each of the light-emitting units includes a first electrode, a first semiconductor layer, a light-emitting layer, a second semiconductor layer, and a second electrode which are stacked, the first electrode is provided on a side of the second electrode facing away from the base substrate, and the plurality of light-emitting units share a common first electrode. The present disclosure can improve display resolution.Type: ApplicationFiled: July 19, 2022Publication date: March 13, 2025Inventors: Can WANG, Xiaochuan CHEN, Minghua XUAN, Can ZHANG, Ning CONG, Jinfei NIU, Jingjing ZHANG
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Publication number: 20250078726Abstract: A pixel circuit, a driving method thereof, a display substrate and a display device are disclosed. The pixel circuit includes a driving circuit and a light-emitting element, the driving circuit is configured to provide a driving current and control a conducting duration of a current pathway between the first power supply terminal and the second power supply terminal; the light-emitting element is configured to receive the driving current in the current pathway and emit light; the driving circuit includes a current control sub-circuit and a duration control sub-circuit; the current control sub-circuit is configured to provide a driving current to the first node under the control of the first scanning signal terminal, the first data signal terminal and the first power supply terminal in a display stage and a non-display stage.Type: ApplicationFiled: June 17, 2022Publication date: March 6, 2025Inventors: Can ZHANG, Ning CONG, Can WANG, Jinfei NIU, Jingjing ZHANG, Minghua XUAN, Xiaochuan CHEN
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Publication number: 20250078727Abstract: A pixel circuit, a driving method therefor, a display substrate and a display device are provided. The pixel circuit includes a drive circuit and a light emitting element connected in series between a first power supply terminal and a third power supply terminal; the drive circuit is used for providing a drive current and controlling a time length of conduction of a current path between the first power supply terminal and the third power supply terminal; the light emitting element is used for receiving the drive current in the current path and emitting light; the drive circuit includes a drive control sub-circuit, a light emitting control sub-circuit and a time-length control sub-circuit; the drive control sub-circuit is used for providing a drive current to the first node under control of the first scan signal terminal, the first data signal terminal and the second node.Type: ApplicationFiled: June 21, 2022Publication date: March 6, 2025Inventors: Jinfei NIU, Minghua XUAN, Can ZHANG, Can WANG, Ning CONG, Jingjing ZHANG, Xiao BAI
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Patent number: 12237316Abstract: A display substrate, including: a base substrate including at least a side edge and a display area; a plurality of pixel units disposed in the display area, a second pixel unit is located on a side of a first pixel unit close to the side edge, edges of the second pixel unit include the side edge, a third pixel unit is located between the first pixel unit and the second pixel unit, and the third pixel unit is adjacent to the second pixel unit; and a plurality of light emitting diode chips disposed on the base substrate a first light emitting diode chip is located in the first pixel unit, a part of a second light emitting diode chip is located in the second pixel unit, and the other part of the second light emitting diode chip is located in the third pixel unit.Type: GrantFiled: June 25, 2021Date of Patent: February 25, 2025Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wei Li, Can Wang, Can Zhang, Li Xiao, Minghua Xuan, Lijun Yuan, Jinfei Niu, Jingjing Zhang, Guangcai Yuan
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Publication number: 20250061846Abstract: A pixel circuit includes a driving circuit, a control circuit and a gating circuit. The driving circuit is configured to control, under control of a scan signal and a signal received at an enable signal control terminal, on and off of a current path for transmitting a driving current signal. The control circuit is configured to transmit, under control of a control signal received at a control signal terminal, a first enable signal received at a first enable signal terminal or a second enable signal received at a second enable signal terminal to a first node. The gating circuit is configured to transmit, in response to an enable signal received at the first node, a first constant voltage signal received at the first constant voltage signal terminal or a second constant voltage signal received at the second constant voltage signal terminal to the enable signal control terminal.Type: ApplicationFiled: November 6, 2024Publication date: February 20, 2025Applicants: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Ning CONG, Can ZHANG, Minghua XUAN, Jinfei NIU, Can WANG, Jingjing ZHANG, Jiakui YAN
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Publication number: 20250040327Abstract: Embodiments of the present application provide a display panel, a display device, and a method for manufacturing the display panel. The display panel includes a substrate, a light emitter, a first electrode and a light collimating unit. The light emitter is on a side of the substrate. The first electrode is on a side of the light emitter away from the substrate. The light collimator is on a side of the first electrode away from the substrate, and the light collimator includes at least one microstructure, in a direction away from the substrate, a cross-sectional area of each of the at least one microstructure decreases.Type: ApplicationFiled: July 19, 2022Publication date: January 30, 2025Inventors: Jingjing ZHANG, Can WANG, Xiaochuan CHEN, Minghua XUAN, Can ZHANG, Ning CONG, Jinfei NIU
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Publication number: 20250014502Abstract: A pixel circuit includes a light emitting circuit, a light emitting control circuit, a first control circuit and a switch control circuit; the light emitting control circuit controls to connect the control voltage input terminal and the light emitting circuit under the control of a light emitting control signal provided by the light emitting control terminal; the light emitting circuit emits light according to a control voltage provided by the control voltage input terminal; the first control circuit controls a switch control signal under the control of a scanning signal according to a data voltage; N is an integer greater than 1; the switch control circuit includes N switch control terminals, N light emitting control voltage terminals and N switch control sub-circuits; n is a positive integer less than or equal to N.Type: ApplicationFiled: July 29, 2022Publication date: January 9, 2025Inventors: Ning CONG, Minghua XUAN, Can ZHANG, Can WANG, Jinfei NIU, Jingjing ZHANG
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Publication number: 20250014514Abstract: A pixel driving circuit includes a driving sub-circuit and a control sub-circuit. The driving sub-circuit is coupled to a data signal terminal, a scan signal terminal, a first power supply voltage terminal, an enable signal control terminal and an element to be driven, and the driving sub-circuit is configured to, in response to an enable signal, transmit a generated driving signal to the element to be driven, and control a current path transmitting the driving signal to be turned on and off. The control sub-circuit is coupled to the enable signal control terminal, and the control sub-circuit is configured to, in response to a signal received at the control signal terminal, transmit a signal 10 received at a first enable signal terminal or a signal received at a second enable signal terminal to the enable signal control terminal.Type: ApplicationFiled: July 21, 2022Publication date: January 9, 2025Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Ning CONG, Li XIAO, Haoliang ZHENG, Can ZHANG, Minghua XUAN, Xiaochuan CHEN, Can WANG, Jinfei NIU, Jingjing ZHANG
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Publication number: 20250006873Abstract: A chip structure is provided. The chip structure includes: a chip wafer unit and a color conversion layer unit arranged on a light-exit side of the chip wafer unit. The chip wafer unit includes a plurality of sub-pixel light-emitting function layers. The color conversion layer unit includes color conversion layers arranged on the light-exit side of the chip wafer unit. The chip structure further includes: an attaching layer, arranged between the chip wafer unit and the color conversion layer unit and configured to attach the chip wafer unit and the color conversion layer unit.Type: ApplicationFiled: June 20, 2022Publication date: January 2, 2025Inventors: Wei LI, Mingxing WANG, Xiao ZHANG, Minghua XUAN, Can ZHANG, Can WANG, Dongliang ZHANG, Qian JIN, Xiang LI, Jingjing ZHANG, Jinfei NIU
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Publication number: 20240405172Abstract: The present disclosure provides a light-emitting substrate. The light-emitting substrate includes a backboard, a light-emitting layer and a plurality of first optical bodies. The light-emitting layer is located on a side of the backboard; the light-emitting layer includes a plurality of light-emitting units, and the plurality of light-emitting units are arranged in an array. Each first optical body includes a first optical portion and a second optical portion; a gap between two adjacent light-emitting units is filled with the first optical portion, and the second optical portion is located on a side of the light-emitting layer away from the backboard, and is connected to the first optical portion. The second optical portion includes a first surface extending outwards from an edge of the first optical portion.Type: ApplicationFiled: July 19, 2022Publication date: December 5, 2024Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Can ZHANG, Can WANG, Minghua XUAN, Xiaochuan CHEN, Ning CONG, Jinfei NIU, Jingjing ZHANG
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Publication number: 20240363599Abstract: A method for preparing the display substrate includes: providing a first substrate, and forming a light emitting chip layer on the first substrate to form a first backplane, wherein the light emitting chip layer includes: light emitting chips arranged in array, which are configured to emit light of a first color and include N sub-pixels, and N is a positive integer greater than or equal to 1; providing a second substrate, and forming a drive circuit layer on the second substrate to form a second backplane, wherein the drive circuit layer includes: connection electrodes arranged in an array, and the light emitting chips correspond to the connection electrodes one-by-one; transferring the first backplane from which the first substrate is peeled off to the second backplane; forming an optical film layer on a side of the light emitting chip layer away from the second backplane.Type: ApplicationFiled: August 17, 2022Publication date: October 31, 2024Inventors: Can WANG, Qi QI, Wei LI, Can ZHANG, Minghua XUAN, Jinfei NIU, Jingjing ZHANG
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Publication number: 20240363798Abstract: A light-emitting diode chip includes: epitaxial structures on one side of substrate, a gap existing between any two adjacent epitaxial structures, first semiconductor patterns of epitaxial structures coupled to form first semiconductor layer; first light-blocking layer on a side of the first semiconductor layer away from substrate, first light-blocking layer having accommodating holes in one-to-one correspondence with epitaxial structures, the light-emitting patterns and the second semiconductor patterns of epitaxial structures being in accommodating holes; second light-blocking layer on a side of first light-blocking layer away from substrate, second light-blocking layer having pixel openings in one-to-one correspondence with accommodating holes; orthographic projections of pixel opening and corresponding accommodating hole on substrate overlap with each other; light processing pattern is in at least one pixel opening; light processing pattern includes color conversion pattern configured to convert light ofType: ApplicationFiled: April 25, 2022Publication date: October 31, 2024Inventors: Jingjing ZHANG, Can ZHANG, Can WANG, Wei LI, Jinfei NIU, Ning CONG
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Publication number: 20240331634Abstract: A pixel driving circuit includes a first circuit and a second circuit. The first circuit is configured to provide a driving current to a light emitting element under the control of the second circuit; the second circuit is configured to receive a digital selection signal from at least one digital selection signal line, receive a digital data signal from at least one digital data signal line, and control a frequency and duration of the driving current received by the light emitting element during one frame of image, thereby controlling tahe grayscale of a sub-pixel having the light emitting element.Type: ApplicationFiled: May 9, 2024Publication date: October 3, 2024Applicants: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD., Beijing BOE Technology Development Co., Ltd.Inventors: Ning Cong, Can Zhang, Minghua Xuan, Jinfei Niu, Can Wang, Jingjing Zhang, Jiakui Yan
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Publication number: 20240296782Abstract: Embodiments of the present disclosure provide a pixel circuit, a driving method therefor and a display apparatus. The pixel circuit includes: an input circuit, configured to input data signals loaded to a first data signal terminal into corresponding input nodes in response to signals loaded to 2N?1 first scanning signal terminals; a control circuit, configured to control signals of 2N control nodes respectively in response to signals of at least two input nodes in the 2N?1 input nodes; an output circuit, configured to provide a signal of an men selection control signal terminal in 2N selection control signal terminals to an output node in response to a signal of an mth control node in the 2N control nodes; and a light-emitting drive circuit, configured to drive a to-be-driven device to work in response to a signal of the output node.Type: ApplicationFiled: June 22, 2022Publication date: September 5, 2024Inventors: Ning CONG, Minghua XUAN, Can ZHANG, Can WANG, Jinfei NIU, Jingjing ZHANG, SeungWoo HAN
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Publication number: 20240296780Abstract: Provided are a pixel circuit and a driving method therefor, a display substrate, and a display apparatus, which belong to the technical field of display. In the pixel circuit, a light-emission adjusting circuit can adjust a data signal written by a data write circuit into a first node and can adjust the potential of a second node according to the potential of the first node; and a light-emission control circuit can output a reference signal to a third node under the control of the potential of the second node. Furthermore, a light emission driving circuit needs to output a drive signal to a light-emitting element in response to the potential of the third node, so as to drive the light-emitting element to emit light.Type: ApplicationFiled: June 8, 2021Publication date: September 5, 2024Inventors: Ning CONG, Minghua XUAN, Can ZHANG, Xiaochuan CHEN, Lijun YUAN, Qi QI, Can WANG, Jinfei NIU