Patents by Inventor Angran ZHANG
Angran ZHANG 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: 11955061Abstract: Provided is a pixel driving circuit configured to provide a signal to a to-be-driven element. The pixel driving circuit includes: a current control sub-circuit, configured to transmit a current signal; a time length control sub-circuit, configured to transmit a time signal; and an output sub-circuit, electrically connected with the time length control sub-circuit and the current control sub-circuit, respectively; where the time length control sub-circuit is further configured to control the output sub-circuit to be turned on or off based on the time signal; the output sub-circuit is configured to, when turned on, control a current applied to the to-be-driven element based on the current signal, where duration of two adjacent turn-ons of the output sub-circuit is same and duration of two adjacent turn-offs of the output sub-circuit is same.Type: GrantFiled: March 3, 2021Date of Patent: April 9, 2024Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Ning Cong, Xiaochuan Chen, Minghua Xuan, Can Zhang, Ming Yang, Lijun Yuan, Angran Zhang
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Patent number: 11893934Abstract: A pixel driving circuit includes: a driving sub-circuit configured to supply a driving signal to an element to be driven; a detection sub-circuit electrically connected to a detection control signal terminal and a detection node and configured to detect a voltage value of the detection node in response to a detection control signal received at the detection control signal terminal. The detection node is equivalent to a point on a connection line between the driving sub-circuit and the element to be driven.Type: GrantFiled: September 5, 2019Date of Patent: February 6, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Han Yue, Minghua Xuan, Can Zhang, Can Wang, Ming Yang, Ning Cong, Angran Zhang, Jiao Zhao, Xiaochuan Chen
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Patent number: 11860382Abstract: The disclosure provides an optical lens structure, a method for manufacturing the same, and a display apparatus. The optical lens structure includes a substrate layer; and a plurality of optical lenses on the substrate layer. The optical lens includes a color resist material; the optical lenses are arranged in an array, and color resist materials of adjacent optical lenses have different colors from each other.Type: GrantFiled: April 7, 2020Date of Patent: January 2, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Can Wang, Can Zhang, Minghua Xuan, Xiaochuan Chen, Angran Zhang, Han Yue, Ming Yang, Ning Cong, Jiao Zhao
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Publication number: 20230180586Abstract: The present disclosure provides a display device and a near-eye display apparatus. The display device includes: a base substrate; a light-emitting layer located on the side of the base substrate and including a plurality of light-emitting portions; a package layer located on the side of the light-emitting layer away from the base substrate; and a lens layer located on the side of the package layer away from the light-emitting layer, and including a plurality of lens structures having one-to-one correspondence to the light-emitting portions and protruding towards the sides distant from the light-emitting portions. On a cross section perpendicular to the base substrate, the center of the orthographic projection of the at least one lens structure on the base substrate does not overlap the center of the orthographic projection of a corresponding light-emitting portion on the base substrate.Type: ApplicationFiled: June 8, 2021Publication date: June 8, 2023Inventors: Can WANG, Xiandong MENG, Qiuyu LING, Angran ZHANG
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Patent number: 11663955Abstract: A pixel circuit, a drive method, a display substrate, and a display device are provided. The pixel circuit includes a light emitting device, a current supply sub-circuit, and a time control sub-circuit. The current supply sub-circuit is connected to a scanning signal terminal, a data signal terminal, a light emitting control terminal, a first power voltage terminal, the time control sub-circuit, and the light emitting device, and is configured to receive a data voltage of the data signal terminal and provide a drive current for the light emitting device. The time control sub-circuit is connected to the scanning signal terminal, a time length signal terminal, a second power voltage terminal, a direct current control signal terminal, and a direct current voltage terminal, and is configured to receive a time length voltage of the time length signal terminal and a direct current voltage input by the direct current voltage terminal.Type: GrantFiled: February 7, 2021Date of Patent: May 30, 2023Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Ning Cong, Minghua Xuan, Can Zhang, Ming Yang, Can Wang, Angran Zhang, Hao Chen, Xiaochuan Chen
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Publication number: 20230043626Abstract: Provided is a pixel driving circuit configured to provide a signal to a to-be-driven element. The pixel driving circuit includes: a current control sub-circuit, configured to transmit a current signal; a time length control sub-circuit, configured to transmit a time signal; and an output sub-circuit, electrically connected with the time length control sub-circuit and the current control sub-circuit, respectively; where the time length control sub-circuit is further configured to control the output sub-circuit to be turned on or off based on the time signal; the output sub-circuit is configured to, when turned on, control a current applied to the to-be-driven element based on the current signal, where duration of two adjacent turn-ons of the output sub-circuit is same and duration of two adjacent turn-offs of the output sub-circuit is same.Type: ApplicationFiled: March 3, 2021Publication date: February 9, 2023Inventors: Ning CONG, Xiaochuan CHEN, Minghua XUAN, Can ZHANG, Ming YANG, Lijun YUAN, Angran ZHANG
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Patent number: 11515361Abstract: The present disclosure provides a light emitting device and a method for manufacturing the same, and a display device. The light emitting device includes a plurality of light emitting units including a red light emitting unit, a green light emitting unit, and a blue light emitting unit, each light emitting unit including a micro-cavity structure. The light emitting device includes an anode structure, a cathode and a functional layer therebetween. The functional layer includes a light emitting layer including a red light emitting layer at least partially located in the red light emitting unit, an orthographic projection of the red light emitting layer on the backplane not overlapping with that of the blue light emitting unit on the backplane; a green light emitting layer at least partially located in the green light emitting unit; and a blue light emitting layer at least partially located in the blue light emitting unit.Type: GrantFiled: March 20, 2020Date of Patent: November 29, 2022Assignee: Beijing BOE Technology Development Co., Ltd.Inventors: Can Wang, Xiaochuan Chen, Minghua Xuan, Can Zhang, Angran Zhang
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Publication number: 20220343835Abstract: A pixel circuit, a drive method, a display substrate, and a display device are provided. The pixel circuit includes a light emitting device, a current supply sub-circuit, and a time control sub-circuit. The current supply sub-circuit is connected to a scanning signal terminal, a data signal terminal, a light emitting control terminal, a first power voltage terminal, the time control sub-circuit, and the light emitting device, and is configured to receive a data voltage of the data signal terminal and provide a drive current for the light emitting device. The time control sub-circuit is connected to the scanning signal terminal, a time length signal terminal, a second power voltage terminal, a direct current control signal terminal, and a direct current voltage terminal, and is configured to receive a time length voltage of the time length signal terminal and a direct current voltage input by the direct current voltage terminal.Type: ApplicationFiled: February 7, 2021Publication date: October 27, 2022Inventors: Ning CONG, Minghua XUAN, Can ZHANG, Ming YANG, Can WANG, Angran ZHANG, Hao CHEN, Xiaochuan CHEN
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Publication number: 20220327996Abstract: A pixel driving circuit includes: a driving sub-circuit configured to supply a driving signal to an element to be driven; a detection sub-circuit electrically connected to a detection control signal terminal and a detection node and configured to detect a voltage value of the detection node in response to a detection control signal received at the detection control signal terminal. The detection node is equivalent to a point on a connection line between the driving sub-circuit and the element to be driven.Type: ApplicationFiled: September 5, 2019Publication date: October 13, 2022Inventors: Han YUE, Minghua XUAN, Can ZHANG, Can WANG, Ming YANG, Ning CONG, Angran ZHANG, Jiao ZHAO, Xiaochuan CHEN
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Patent number: 11417272Abstract: A pixel circuit and driving method are provided. The pixel circuit includes a light emitting device having a first terminal and a second terminal; a driving circuit, electrically connected to the first terminal of the light emitting device, for providing power to the light emitting device; a voltage comparator for generating a pulse width modulated signal having a duty cycle based on a data voltage and a reference voltage; an offset voltage detecting circuit, electrically connected to an output terminal of the voltage comparator, for detecting an input offset voltage of the voltage comparator; and a data voltage compensation circuit, electrically connected to the offset voltage detecting circuit, for compensating the data voltage according to the input offset voltage detected.Type: GrantFiled: November 1, 2019Date of Patent: August 16, 2022Assignee: BOE Technology Group Co., Ltd.Inventors: Ming Yang, Ning Cong, Han Yue, Can Zhang, Can Wang, Jiao Zhao, Angran Zhang, Minghua Xuan, Xiaochuan Chen
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Publication number: 20220252765Abstract: A display assembly includes a display panel and a light adjusting layer disposed on a light-emitting side of the display panel. The display panel has a middle display region and a peripheral display region, and is configured to project light towards an optical device. An orthographic projection of the light adjusting layer on the display panel at least partially overlaps with the peripheral display region. The light adjusting layer is configured to: deflect at least a portion of light emitted to a first region of the optical device and at least a portion of light emitted to an outer side of the optical device among light emitted from the peripheral display region, after passing therethrough; and emit the deflected light to a second region of the optical device. The second region is farther away from a center of the optical device than the first region.Type: ApplicationFiled: January 21, 2021Publication date: August 11, 2022Applicant: BOE TECHNOLOGY GROUP CO., LTDInventors: Angran ZHANG, Can ZHANG, Can WANG, Xiaochuan CHEN, Tao HONG
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Patent number: 11373583Abstract: Embodiments of the present disclosure disclose a drive circuit, a driving method thereof and a display device. The drive circuit includes: a current control circuit, configured to provide a drive signal to a device to be driven according to a signal of a data signal terminal; a first transistor, electrically connected between the current control circuit and the device to be driven; and a duration control circuit, electrically connected with a gate of the first transistor, and configured to provide a light-emitting duration modulating signal to the gate of the first transistor according to a combined action of signals of a scanning signal terminal, a light-emitting control signal terminal, a duration control signal terminal and a reference voltage signal terminal, to control a conduction duration of the first transistor.Type: GrantFiled: July 18, 2019Date of Patent: June 28, 2022Assignee: BOE Technology Group Co., Ltd.Inventors: Ming Yang, Ning Cong, Minghua Xuan, Can Zhang, Xiaochuan Chen, Can Wang, Han Yue, Jiao Zhao, Angran Zhang
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Publication number: 20220139297Abstract: Embodiments of the present disclosure disclose a drive circuit, a driving method thereof and a display device. The drive circuit includes: a current control circuit, configured to provide a drive signal to a device to be driven according to a signal of a data signal terminal; a first transistor, electrically connected between the current control circuit and the device to be driven; and a duration control circuit, electrically connected with a gate of the first transistor, and configured to provide a light-emitting duration modulating signal to the gate of the first transistor according to a combined action of signals of a scanning signal terminal, a light-emitting control signal terminal, a duration control signal terminal and a reference voltage signal terminal, to control a conduction duration of the first transistor.Type: ApplicationFiled: July 18, 2019Publication date: May 5, 2022Inventors: Ming YANG, Ning CONG, Minghua XUAN, Can ZHANG, Xiaochuan CHEN, Can WANG, Han YUE, Jiao ZHAO, Angran ZHANG
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Publication number: 20210407408Abstract: A pixel circuit and driving method are provided. The pixel circuit includes a light emitting device having a first terminal and a second terminal; a driving circuit, electrically connected to the first terminal of the light emitting device, for providing power to the light emitting device; a voltage comparator for generating a pulse width modulated signal having a duty cycle based on a data voltage and a reference voltage; an offset voltage detecting circuit, electrically connected to an output terminal of the voltage comparator, for detecting an input offset voltage of the voltage comparator; and a data voltage compensation circuit, electrically connected to the offset voltage detecting circuit, for compensating the data voltage according to the input offset voltage detected.Type: ApplicationFiled: November 1, 2019Publication date: December 30, 2021Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Ming YANG, Ning CONG, Han YUE, Can ZHANG, Can WANG, Jiao ZHAO, Angran ZHANG, Minghua XUAN, Xiaochuan CHEN
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Patent number: 11195467Abstract: A pixel driving circuit and a display device are provided. The pixel driving circuit includes a voltage control circuit and a light-emitting time control circuit. The voltage control circuit is configured to control a voltage at a voltage writing node according to a first data voltage on a first data line; the light-emitting time control circuit is configured to connect the voltage writing node to a first electrode of a light-emitting device or disconnect the voltage writing node from the first electrode of the light-emitting device according to a second data voltage on a second data line and a reference voltage at a reference voltage terminal; and a second electrode of the light-emitting device is electrically connected to a first voltage terminal.Type: GrantFiled: July 1, 2020Date of Patent: December 7, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Han Yue, Can Zhang, Can Wang, Angran Zhang, Minghua Xuan
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Patent number: 11056662Abstract: The present application discloses an organic light-emitting device and a display device. The organic light-emitting device comprises an anode, a cathode, and a blue light emitting layer, a green light emitting layer and a red light emitting layer between the anode and the cathode, and the blue light emitting layer comprises a blue thermally-activated delayed fluorescent material with a mass percent of 60-80%, the green light emitting layer comprises a green phosphorescent material and/or a green thermally-activated delayed fluorescent material, and the red light emitting layer comprises a red phosphorescent material and/or a red thermally-activated delayed fluorescent material.Type: GrantFiled: October 23, 2017Date of Patent: July 6, 2021Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Angran Zhang, Hamada Yuji, Jinghua Niu, Xiangcheng Wang, Shuang Cheng, Run Yang
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Publication number: 20210166629Abstract: A pixel driving circuit and a display device are provided. The pixel driving circuit includes a voltage control circuit and a light-emitting time control circuit. The voltage control circuit is configured to control a voltage at a voltage writing node according to a first data voltage on a first data line; the light-emitting time control circuit is configured to connect the voltage writing node to a first electrode of a light-emitting device or disconnect the voltage writing node from the first electrode of the light-emitting device according to a second data voltage on a second data line and a reference voltage at a reference voltage terminal; and a second electrode of the light-emitting device is electrically connected to a first voltage terminal.Type: ApplicationFiled: July 1, 2020Publication date: June 3, 2021Inventors: Han YUE, Can ZHANG, Can WANG, Angran ZHANG, Minghua XUAN
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Publication number: 20210134895Abstract: The present disclosure provides a light emitting device and a method for manufacturing the same, and a display device. The light emitting device includes a plurality of light emitting units including a red light emitting unit, a green light emitting unit, and a blue light emitting unit, each light emitting unit including a micro-cavity structure. The light emitting device includes an anode structure, a cathode and a functional layer therebetween. The functional layer includes a light emitting layer including a red light emitting layer at least partially located in the red light emitting unit, an orthographic projection of the red light emitting layer on the backplane not overlapping with that of the blue light emitting unit on the backplane; a green light emitting layer at least partially located in the green light emitting unit; and a blue light emitting layer at least partially located in the blue light emitting unit.Type: ApplicationFiled: March 20, 2020Publication date: May 6, 2021Inventors: Can Wang, Xiaochuan Chen, Minghua Xuan, Can Zhang, Angran Zhang
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Publication number: 20210132261Abstract: The disclosure provides an optical lens structure, a method for manufacturing the same, and a display apparatus. The optical lens structure includes a substrate layer; and a plurality of optical lenses on the substrate layer. The optical lens includes a color resist material; the optical lenses are arranged in an array, and color resist materials of adjacent optical lenses have different colors from each other.Type: ApplicationFiled: April 7, 2020Publication date: May 6, 2021Inventors: Can WANG, Can ZHANG, Minghua XUAN, Xiaochuan CHEN, Angran ZHANG, Han YUE, Ming YANG, Ning CONG, Jiao ZHAO
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Patent number: 10910604Abstract: The disclosure discloses an organic light-emitting display panel, a method for adjusting color temperature thereof, and a display device, and the organic light-emitting display panel includes: an underlying substrate, and a plurality of light-emitting elements arranged on the underlying substrate; each of the light-emitting elements includes a first electrode, a first light-emitting layer, a second electrode, a second light-emitting layer, and a third electrode arranged on the underlying substrate in that order in a light exit direction of the organic light-emitting display panel, where a wavelength of emitted light from the first light-emitting layer is greater than a wavelength of emitted light from the second light-emitting layer; and the first electrode, the second electrode, and the third electrode are connected respectively with different voltage signal terminals.Type: GrantFiled: March 5, 2018Date of Patent: February 2, 2021Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.Inventors: Shuang Cheng, Jinghua Niu, Xiangcheng Wang, Yuji Hamada, Angran Zhang, Run Yang