Patents by Inventor Can Zhang

Can 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).

  • Publication number: 20230010646
    Abstract: A display substrate, a driving method therefor, and a display device are provided. The display substrate includes: a base substrate, provided with multiple pixel islands discretely provided, the pixel islands including multiple subpixels distributed in an array; a plurality of pixel circuits, arranged in the subpixels respectively, each of the pixel circuits including a driving transistor and a light-emitting component, a first electrode of the driving transistor being electrically connected to a first power supply end, a second electrode of the driving transistor being electrically connected to an anode of the light-emitting component, and a cathode of the light-emitting component being electrically connected to a second power supply end; and multiple light emission control circuits, each arranged at a gap between adjacent pixel islands, the light emission control circuit being electrically connected between the first power supply end and the first electrode of the driving transistor.
    Type: Application
    Filed: September 1, 2021
    Publication date: January 12, 2023
    Inventors: Can ZHANG, Ning CONG, Minghua XUAN, Xiaochuan CHEN
  • Publication number: 20220415976
    Abstract: A display panel includes: a base substrate, light-emitting devices on the base substrate, and barrier structures. The light-emitting device includes: a first electrode and a second electrode arranged in a stacked manner, and a light-emitting functional layer between the first electrode and the second electrode. The barrier structures are located on a film layer between the light-emitting functional layer and the base substrate. The orthographic projection of the barrier structure on the base substrate is between the orthographic projections of adjacent light-emitting devices on the base substrate. The barrier structure is configured to generate, under the control of an electrical signal, an electric field in a direction perpendicular to a plane where the base substrate is located.
    Type: Application
    Filed: January 19, 2021
    Publication date: December 29, 2022
    Inventors: Han YUE, Can ZHANG, Minghua XUAN, Xiaochuan CHEN
  • Patent number: 11538405
    Abstract: The pixel driving circuit includes a current control circuit and a gating circuit. The current control circuit is configured to transmit a driving current signal to an element to be driven. The gating circuit is configured to transmit a second voltage signal from a second voltage signal terminal to the element to be driven such that the element to be driven continuously emits light or transmit a third voltage signal from a third voltage signal terminal to the element to be driven such that the element to be driven intermittently emits light, under the control of a scan signal from a scan signal terminal, a reset signal from a reset signal terminal and a second data signal from a second data signal terminal.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: December 27, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Lijun Yuan, Can Zhang, Ning Cong, Wei Li, Can Wang, Jinfei Niu, Jingjing Zhang, Minghua Xuan
  • Patent number: 11538875
    Abstract: A display substrate, a manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate, a pixel defining layer, and a first electrode layer between the base substrate and the pixel defining layer. The pixel defining layer defines a plurality of sub-pixels on the base substrate, the first electrode layer comprises a plurality of first electrodes, and the plurality of first electrodes being separated from each other by gaps, and an orthographic projection of the pixel defining layer on the base substrate covers an orthographic projection of the gap on the base substrate.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: December 27, 2022
    Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Can Wang, Can Zhang
  • Publication number: 20220406243
    Abstract: The present disclosure provides a pixel circuit, a method for driving the same, a display substrate, and a display device, which belong to the field of display technologies. The pixel circuit includes a compensating circuit which can adjust an electric potential of a second control node (a gate of a transistor controlling conduction or non-conduction between a first connection node and a second connection node) based on an electric potential of a first control node, and adjust an electric potential of the second control node based on an electric potential of the second connection node. When the pixel circuit is driven, electric potential of each control signal can be controlled, such that influence of a threshold voltage of a transistor on an electric potential finally output to the second control node is relatively small, that is, influence of drifting of a threshold voltage on display uniformity is reduced. The display device according to the present disclosure achieves a good display effect.
    Type: Application
    Filed: December 28, 2020
    Publication date: December 22, 2022
    Inventors: Ning CONG, Minghua XUAN, Can ZHANG, Ming YANG, Can WANG, Lijun YUAN
  • Publication number: 20220398965
    Abstract: A display panel includes: a plurality of light emitting signal lines. Under a control of switching signals provided from a plurality of switching signal lines and control signals provided from a plurality of control signal lines, working gray scale level signals corresponding to respective display gray scales are written to corresponding sub-pixels in an order from small to large in working gray scale sequentially by a plurality of times in one frame display time through the plurality of light emitting signal lines. Different working gray scale level signals indicate have different durations, and each of the working gray scale level signals is provided to the organic light emitting diode via the second transistor through a light emitting signal line, and a final display gray scale is a gray scale caused by superimposing different working gray scale level signals.
    Type: Application
    Filed: December 18, 2020
    Publication date: December 15, 2022
    Inventors: Lijun Yuan, Can ZHANG, Ning CONG, Can WANG, Jinfei NIU, Minghua XUAN
  • Publication number: 20220383800
    Abstract: The present disclosure discloses a pixel drive circuit and a display panel. The pixel drive circuit includes a Micro-LED, a cathode of which is grounded; a light-emitting control circuit connected with an anode of the Micro-LED and configured to control an emission time of the Micro-LED; a current control circuit connected with the light-emitting control circuit and configured to output a preset current to the light-emitting control circuit to control the Micro-LED to work under a set current density, and luminance efficiency of the Micro-LED under the set current density is greater than a set threshold value.
    Type: Application
    Filed: April 27, 2020
    Publication date: December 1, 2022
    Inventors: Ning CONG, Ming YANG, Han YUE, Can WANG, Can ZHANG, Jiao ZHAO, Minghua XUAN, Xiaochuan CHEN
  • Patent number: 11515361
    Abstract: 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: Grant
    Filed: March 20, 2020
    Date of Patent: November 29, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Can Wang, Xiaochuan Chen, Minghua Xuan, Can Zhang, Angran Zhang
  • Patent number: 11501713
    Abstract: The disclosure provides a pixel circuit and a driving method thereof, a display device. The pixel circuit includes: a storage capacitor having a first terminal coupled to a first node and a second terminal coupled to a second node; a light emitting diode having a first electrode coupled to a third node and a second electrode coupled to a second power supply terminal; a data writing circuit configured to write a data voltage into the second node; a compensation circuit configured to write a voltage of the third node, as a compensation voltage, into the first node; a driving transistor having a control terminal coupled to the first node, a first electrode coupled to a first power supply terminal and a second electrode coupled to the light emitting control circuit; a light emitting control circuit configured to control the light emitting diode to emit light.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: November 15, 2022
    Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Han Yue, Can Zhang, Can Wang, Minghua Xuan
  • Publication number: 20220343835
    Abstract: 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: Application
    Filed: February 7, 2021
    Publication date: October 27, 2022
    Inventors: Ning CONG, Minghua XUAN, Can ZHANG, Ming YANG, Can WANG, Angran ZHANG, Hao CHEN, Xiaochuan CHEN
  • Patent number: 11473192
    Abstract: The invention discloses equipment and preparation method for open and continuous growth of a carbon nanomaterial. The equipment comprises a metal foil tape feeding system, a CVD system and a collection system. The method includes continuously conveying a metal foil tape pretreated or not into the CVD system via the metal foil tape feeding system, depositing a required carbon nanomaterial on the surface of the metal foil tape by CVD, directly collecting by the collection system or directly post-treating the carbon nanomaterial by a post-treatment system, and even directly producing a end product of the carbon nanomaterial. All the systems in the invention are arranged in the open atmosphere rather than an air-isolated closed space. The invention can realize round-the-clock continuous operation to greatly improve the production efficiency of carbon nanomaterials.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: October 18, 2022
    Assignee: SHENZHEN NASO TECH CO., LTD.
    Inventors: Guofang Zhong, Can Zhang
  • Patent number: 11475864
    Abstract: A display panel, a method of manufacturing the display panel, a method of driving the display panel and a display device are provided. The display panel includes an array substrate and a plurality of micro light-emitting diodes arranged on the array substrate, and further includes: a photoelectric conversion structure in a one-to-one correspondence with a micro light-emitting diode, the photoelectric conversion structure is located on a side of the corresponding micro light-emitting diode facing the array substrate, connected to the corresponding micro light-emitting diode, and configured to convert a received light signal emitted by the micro light-emitting diode into an electrical signal, and charge the corresponding micro light-emitting diode by using the electrical signal. The display panel is used for display.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: October 18, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Can Zhang, Han Yue, Minghua Xuan
  • Publication number: 20220327996
    Abstract: 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: Application
    Filed: September 5, 2019
    Publication date: October 13, 2022
    Inventors: Han YUE, Minghua XUAN, Can ZHANG, Can WANG, Ming YANG, Ning CONG, Angran ZHANG, Jiao ZHAO, Xiaochuan CHEN
  • Publication number: 20220309991
    Abstract: The pixel driving circuit includes a current control sub-circuit configured to output a gray scale current signal to an element to be driven, and a gating sub-circuit. The gating sub-circuit is coupled to a scan signal terminal, a reset signal terminal, a gating data signal terminal and a pulse voltage signal terminal; the gating sub-circuit is configured to drive the element to be driven to continuously emit light under the control of a scan signal from the scan signal terminal and a gating data signal from the gating data signal terminal, and to drive the element to be driven to intermittently emit light under the control of a reset signal from the reset signal terminal, the gating data signal from the gating data signal terminal, and a pulse voltage signal from the pulse voltage signal terminal.
    Type: Application
    Filed: November 19, 2021
    Publication date: September 29, 2022
    Inventors: Lijun YUAN, Can ZHANG, Ning CONG, Wei LI, Can WANG, Jinfei NIU, Jingjing ZHANG, Minghua XUAN
  • Publication number: 20220301492
    Abstract: The pixel driving circuit includes a current control circuit and a gating circuit. The current control circuit is configured to transmit a driving current signal to an element to be driven. The gating circuit is configured to transmit a second voltage signal from a second voltage signal terminal to the element to be driven such that the element to be driven continuously emits light or transmit a third voltage signal from a third voltage signal terminal to the element to be driven such that the element to be driven intermittently emits light, under the control of a scan signal from a scan signal terminal, a reset signal from a reset signal terminal and a second data signal from a second data signal terminal.
    Type: Application
    Filed: November 19, 2021
    Publication date: September 22, 2022
    Inventors: Lijun YUAN, Can ZHANG, Ning CONG, Wei LI, Can WANG, Jinfei NIU, Jingjing ZHANG, Minghua XUAN
  • Publication number: 20220285467
    Abstract: A method of fabricating a display panel includes forming a first conductive layer on a base substrate, wherein the first conductive layer is formed in an encapsulated area and a peripheral area of the display panel; forming an organic insulating layer on a side of the first conductive layer away from the base substrate, wherein the organic insulating layer is formed to be limited in the encapsulated area; forming a first inorganic insulating layer on a side of the organic insulating layer away from the base substrate; forming a second conductive layer on a side of the organic insulating layer and the first inorganic insulating layer away from the base substrate, wherein the second conductive layer is formed in the encapsulated area and the peripheral area; and forming a second inorganic insulating layer, the second inorganic insulating layer formed between the organic insulating layer and the first conductive layer.
    Type: Application
    Filed: May 23, 2022
    Publication date: September 8, 2022
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Ming Yang, Can Zhang, Minghua Xuan, Chuanxiang Xu, Feng Zhang, Zhongyuan Sun, Xiaochuan Chen
  • Publication number: 20220285454
    Abstract: The present application relates to a display panel, a manufacturing method thereof, and a display device. The display panel includes a base substrate, a plurality of pixel structures on the base substrate, and a color resist layer on a side of the plurality of pixel structures facing away the base substrate. The color resist layer includes a plurality of color resist blocks in one-to-one correspondence with the plurality of pixel structures. Light emitted from each of the plurality of pixel structures has the same color as the color resist block corresponding thereto.
    Type: Application
    Filed: May 24, 2022
    Publication date: September 8, 2022
    Inventors: Can WANG, Can ZHANG, Xiaochuan CHEN, Minghua XUAN, Han YUE, Ming YANG, Ning CONG
  • Publication number: 20220285455
    Abstract: The present application relates to a display panel, a manufacturing method thereof, and a display device. The display panel includes a base substrate, a plurality of pixel structures on the base substrate, and a color resist layer on a side of the plurality of pixel structures facing away the base substrate. The color resist layer includes a plurality of color resist blocks in one-to-one correspondence with the plurality of pixel structures. Light emitted from each of the plurality of pixel structures has the same color as the color resist block corresponding thereto.
    Type: Application
    Filed: May 24, 2022
    Publication date: September 8, 2022
    Inventors: Can WANG, Can ZHANG, Xiaochuan CHEN, Minghua XUAN, Han YUE, Ming YANG, Ning CONG
  • Patent number: 11417272
    Abstract: 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: Grant
    Filed: November 1, 2019
    Date of Patent: August 16, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Ming Yang, Ning Cong, Han Yue, Can Zhang, Can Wang, Jiao Zhao, Angran Zhang, Minghua Xuan, Xiaochuan Chen
  • Publication number: 20220252765
    Abstract: 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: Application
    Filed: January 21, 2021
    Publication date: August 11, 2022
    Applicant: BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Angran ZHANG, Can ZHANG, Can WANG, Xiaochuan CHEN, Tao HONG