Patents by Inventor Dacheng Zhang

Dacheng 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).

  • Patent number: 11350286
    Abstract: A device identifier (ID) obtaining method, a terminal, and a network device, where the method includes sending, by a terminal to a network device, a first message used to obtain a device ID, where the device ID is used to globally identify the terminal uniquely, receiving, by the terminal, an encrypted key pair sent by the network device, where the key pair includes a first public key and a first private key, receiving, by the terminal, information sent by the network device, where the information is used to identify that the first public key is the device ID of the terminal, and determining, by the terminal, that the first public key is the device ID.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: May 31, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chong Zhou, Tianfu Fu, Dacheng Zhang, Jianxiong Wei
  • Publication number: 20220140282
    Abstract: Provided are a display substrate and a preparation method thereof, and a display device. The display substrate includes a base substrate, a light-emitting element disposed on the base substrate, and an encapsulation layer disposed on the light-emitting element, the display substrate further comprises a driving circuit connected with the light-emitting element and configured to drive the light-emitting element, the driving circuit comprises a driving transistor which comprises an active layer located inside the base substrate; the encapsulation layer comprises a first gradient layer and a second gradient layer stacked along a direction away from the base substrate, a content of oxygen element in the first gradient layer gradually decreases, and a content of carbon element in the second gradient layer gradually increases along the direction away from the base substrate.
    Type: Application
    Filed: March 27, 2020
    Publication date: May 5, 2022
    Inventors: Qing WANG, Kuanta HUANG, Xiaochuan CHEN, Dacheng ZHANG
  • Publication number: 20220140021
    Abstract: A display substrate, a manufacturing method thereof and a display apparatus are disclosed. The display substrate includes a silicon base substrate and a color film layer disposed on the silicon base substrate. A plurality of metal traces for connecting a display area and a cathode ring with a bonding area respectively are contained in the silicon base substrate. The color film layer includes a first align mark, and the first align mark has a hollowed-out structure. A projection of the first align mark on the silicon base substrate and projections of the metal traces on the silicon base substrate include overlapping areas.
    Type: Application
    Filed: March 27, 2020
    Publication date: May 5, 2022
    Inventors: Yunlong LI, Pengcheng LU, Yu Ao, Zhijian ZHU, Yuanlan TIAN, Dacheng ZHANG
  • Publication number: 20220140018
    Abstract: The present disclosure provides an array substrate including a driving circuit board, and a first electrode layer, an insulating layer, and an anode structure sequentially stacked thereon. The anode structure includes a reflective layer, an intermediate dielectric layer, and a transparent conductive layer sequentially provided in a direction away from the driving circuit board. The array substrate has first, second, and third pixel regions. The anode structure includes first, second, and third anode structures. The first electrode layer includes first, second and third sub-portions. The first, second and third anode structures are coupled with the first, second and third sub-portions through first, second and third via holes in the insulating layer, respectively. A surface of the insulating layer in contact with the first, second and third anode structures is flush; and a thickness of the intermediate dielectric layer in the second, first and third anode structures increases sequentially.
    Type: Application
    Filed: March 18, 2020
    Publication date: May 5, 2022
    Inventors: Li LIU, Pengcheng LU, Rongrong SHI, Yuanlan TIAN, Junbo WEI, Dacheng ZHANG
  • Publication number: 20220140050
    Abstract: Provided is display substrate, including driving circuit board, and first electrode layer, insulating layer, second electrode layer, isolation layer, transparent conductive layer sequentially stacked thereon. Driving circuit board includes pixel and bonding regions. First electrode layer includes first sub-portion in bonding region and second sub-portion in pixel region. Insulating and isolation layers are partially cover bonding and pixel regions. Insulating layer has first via hole in area corresponding to first sub-portion. Isolation layer has second via hole in the area. Axes of first and second via holes coincide, first sub-portion is exposed at first and second via holes. Second electrode layer is in pixel region, coupled to second sub-portion through third via hole in area corresponding to second sub-portion. Isolation layer has fourth via hole in area corresponding to second electrode layer. Transparent conductive layer is in pixel region, coupled to second electrode layer through fourth via hole.
    Type: Application
    Filed: March 24, 2020
    Publication date: May 5, 2022
    Inventors: Li LIU, Pengcheng LU, Rongrong SHI, Yuanlan TIAN, Xiao BAI, Dacheng ZHANG
  • Publication number: 20220123073
    Abstract: Provided are a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a plurality of display units; the display unit includes a driving structure layer, a light emitting structure layer and a color filter layer which are located in the display area and sequentially arranged on the substrate; the light emitting structure layer comprises a plurality of light emitting structures each including a pixel define layer and an organic light emitting layer; the organic light emitting layer is located in an opening area of the pixel define layer and on the pixel define layer; the color filter layer includes a plurality of light filters; the display substrate includes a spacing area located in the display area, the spacing area being located between opening areas of pixel define layers of adjacent light emitting structures.
    Type: Application
    Filed: May 15, 2020
    Publication date: April 21, 2022
    Inventors: Meng LI, Yongqian LI, Chen XU, Dacheng ZHANG, Jingquan WANG, Zhidong YUAN, Haixia XU
  • Publication number: 20220123056
    Abstract: A display region includes a plurality of pixel driving circuitry setting regions arranged sequentially in a first direction, and each pixel driving circuitry setting region extends in a second direction intersecting the first direction. Each display circuitry includes a plurality of subpixels in one-to-one correspondence with the pixel driving circuitry setting regions, each subpixel includes a subpixel driving circuitry and a light-emitting element coupled to each other, the subpixel driving circuitry is located in a corresponding pixel driving circuitry setting region, the light-emitting element is located at a side of the subpixel driving circuitry away from the substrate, a width of the light-emitting element is greater than a width of the corresponding pixel driving circuitry setting region in the first direction, and a length of the light-emitting element is smaller than a length of the corresponding pixel driving circuitry setting region in the second direction.
    Type: Application
    Filed: May 15, 2020
    Publication date: April 21, 2022
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Meng LI, Yongqian LI, Jingquan WANG, Chen XU, Dacheng ZHANG, Zhidong YUAN, Can YUAN, Xuehuan FENG
  • Publication number: 20220115486
    Abstract: A display substrate includes: a base substrate including a display area and a peripheral area pixel units in the display area, each including a pixel drive circuit and a light emitting device the light emitting device including a first electrode, a second electrode, and a light emitting layer; a first power trace located in the peripheral area and electrically connected to the first electrode; a second power trace located in the peripheral area and electrically connected to the second electrode; a planarization layer with at least a portion thereof being located in the peripheral area. An orthographic projection of the planarization layer on the base substrate at least partially overlaps an orthographic projection of each of the first and second power traces on the base substrate, the first and second power traces are located in different layers, and a portion of the planarization layer is located between the first and second power traces.
    Type: Application
    Filed: May 19, 2020
    Publication date: April 14, 2022
    Inventors: Zhidong Yuan, Dacheng Zhang, Yongqian Li, Lang Liu, Zhongyuan Wu, Can Yuan, Meng Li
  • Publication number: 20220013610
    Abstract: The present disclosure provides a display panel and an electronic device. The display panel includes: a base substrate; and a pixel arranged on the base substrate, wherein the pixel includes a first sub-pixel including a first sub-pixel drive circuit and a first light emitting element and a second sub-pixel including a second sub-pixel drive circuit and a second light emitting element, the first and second sub-pixel drive circuits are arranged sequentially in a first direction and extend in a second direction, wherein the first light emitting element includes a first anode, the second light emitting element includes a second anode, an orthographic projection of each of the first and the second anodes partially covers an orthographic projections of the first and second sub-pixel drive circuits, and the orthographic projection of the first anode does not overlap the orthographic projection of the second anode.
    Type: Application
    Filed: May 15, 2020
    Publication date: January 13, 2022
    Inventors: Meng Li, Zhongyuan Wu, Yongqian Li, Dacheng Zhang, Jingquan Wang, Yu Wang, Chen Xu
  • Publication number: 20220013067
    Abstract: A pixel driving circuit, a display device and an electronic device are provided. The pixel driving circuit includes: a first sub-pixel driving circuit, a second sub-pixel driving circuit, a third sub-pixel driving circuit, and a fourth sub-pixel driving circuit sequentially arranged in a first direction; a detection line; a first power line extending in the second direction; and a second power line extending in the second direction; wherein one of the first power line and the second power line is provided on a side of the second sub-pixel driving circuit away from the third sub-pixel driving circuit, and the other of the first power line and the second power line is provided on a side of the third sub-pixel driving circuit away from the second sub-pixel driving circuit.
    Type: Application
    Filed: May 15, 2020
    Publication date: January 13, 2022
    Inventors: Meng Li, Yongqian Li, Chen Xu, Dacheng Zhang, Jingquan Wang, Shi Sun
  • Publication number: 20220013612
    Abstract: Provided are a display substrate, a manufacturing method thereof and a display apparatus. The display substrate includes multiple sub-pixels, wherein each sub-pixel includes a light-emitting region and a non-light-emitting region, and each sub-pixel is provided with a drive circuit; the drive circuit includes a storage capacitor and multiple transistors; for each sub-pixel, the multiple transistors are in the non-light-emitting region, the storage capacitor is a transparent capacitor, and an orthographic projection of the storage capacitor on a base substrate coincides with the light-emitting region. A first electrode of the storage capacitor is disposed in a same layer as an active layer of the multiple transistors, but in a different layer from source and drain electrodes of the multiple transistors, and a second electrode of the storage capacitor is on a side of the first electrode close to the base substrate.
    Type: Application
    Filed: August 19, 2020
    Publication date: January 13, 2022
    Inventors: Pan XU, Yongqian LI, Guoying WANG, Dacheng ZHANG, Chen XU, Lang LIU, Xing ZHANG, Ling WANG, Yicheng LIN, Ying HAN
  • Patent number: 11217656
    Abstract: A display substrate and a manufacturing method thereof and a display device are provided. The display substrate includes a base substrate and sub-pixels on the base substrate. The sub-pixels are arranged in a sub-pixel array. At least one sub-pixel includes a first transistor, a second transistor, a third transistor and a storage capacitor. The first electrode of the third transistor is electrically connected to an active layer of the third transistor through a first via hole, and the first electrode of the third transistor is configured to be electrically connected to the light emitting element through a second via hole; the first via hole and the second via hole are at least partially overlapped with each other in a direction perpendicular to the base substrate.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: January 4, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Meng Li, Zhongyuan Wu, Yongqian Li, Can Yuan, Zhidong Yuan, Xuehuan Feng, Lang Liu, Dacheng Zhang
  • Publication number: 20210408134
    Abstract: A display substrate and a manufacturing method thereof, and a display device. The display substrate includes: a base substrate including a display region and a peripheral region surrounding the display region; a first light emitting element in the display region of the base substrate; and a color film structure on a display side of the first light emitting element. The color film structure includes: a first color film, including only a first pixel color film located in the display region; and a second color film, including a second pixel color film located in the display region and at least partially non-overlapping with the first pixel color film, and a first frame color film located in the peripheral region and surrounding the display region.
    Type: Application
    Filed: August 27, 2019
    Publication date: December 30, 2021
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Yunlong Li, Pengcheng Lu, Kui Zhang, Li Liu, Shengji Yang, Kuanta Huang, Xiaochuan Chen, Dacheng Zhang
  • Publication number: 20210408078
    Abstract: An electronic device substrate, a manufacturing method thereof, and an electronic device are provided. The electronic device substrate includes a base substrate, a first insulating layer, and light-emitting sub-units, a first conductive member and a second conductive member, which are on a side of the first insulating layer away from the base substrate. The light-emitting sub-units and the first conductive member are respectively in array region and periphery region, and the second conductive member is between the first conductive member and the array region; orthogonal projections of the first and second conductive members on the base substrate are spaced apart; each light-emitting sub-unit includes first and second driving electrodes, second driving electrodes of the light-emitting sub-units are integrated to form a first common electrode layer; the periphery region further includes a second common electrode layer electrically connected to the first conductive member and the first common electrode layer.
    Type: Application
    Filed: August 27, 2019
    Publication date: December 30, 2021
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Kui Zhang, Pengcheng Lu, Li Liu, Yunlong Li, Dacheng Zhang
  • Patent number: 11183542
    Abstract: A display panel and a method for manufacturing a display panel are disclosed. The display panel includes a first sub-pixel region and a second sub-pixel region which are adjacent to each other. The display panel includes a substrate and a first conductive layer, an organic functional layer, and a second conductive layer which are sequentially on the substrate. The organic functional layer includes a charge generation layer, and the charge generation layer includes a first charge generation layer portion and a second charge generation layer portion which are in the first sub-pixel region and the second sub-pixel region, respectively. The display panel further includes a spacer between the first sub-pixel region and the second sub-pixel region, and the spacer disconnects the first charge generation layer portion and the second charge generation layer portion.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: November 23, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Li Liu, Junbo Wei, Pengcheng Lu, Shengji Yang, Yunlong Li, Rongrong Shi, Dacheng Zhang
  • Publication number: 20210305535
    Abstract: The present disclosure provides a display panel, a method for preparing the same, and a display device. The display panel includes: a display substrate, including a base substrate, a driving transistor embedded on the base substrate, and a first electrode layer located on the base substrate; an encapsulation protection structure located on the display substrate and surrounding a display area of the display substrate; a light emitting layer located on a surface of the first electrode layer away from the base substrate; a second electrode layer located on a surface of the light emitting layer away from the base substrate; and a first encapsulation layer located on a surface of the second electrode layer away from the base substrate.
    Type: Application
    Filed: March 31, 2020
    Publication date: September 30, 2021
    Inventors: Kui ZHANG, Li LIU, Pengcheng LU, Yunlong LI, Dacheng ZHANG
  • Publication number: 20210259086
    Abstract: A display panel and a display apparatus are disclosed. The display panel comprises: a plurality of signal lines extending in a first direction; at least one first reference voltage bus which extends in a second direction intersecting the first direction; and a plurality of electrostatic discharge units divided into a plurality of electrostatic discharge unit groups, wherein the plurality of electrostatic discharge unit groups are arranged in the second direction and each of the plurality of electrostatic discharge unit groups comprises at least two electrostatic discharge units arranged in the first direction, wherein at least one of the plurality of signal lines is electrically connected to the first reference voltage bus through at least one of the plurality of electrostatic discharge units.
    Type: Application
    Filed: December 23, 2020
    Publication date: August 19, 2021
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Pan Xu, Yongqian Li, Guoying Wang, Dacheng Zhang, Lang Liu
  • Publication number: 20210202603
    Abstract: A display substrate, a manufacturing method thereof and a display device are provided. The display substrate includes a base substrate and sub-pixels on the base substrate. At least one sub-pixel includes a first transistor, a second transistor, a third transistor, and a storage capacitor. The display substrate further includes an extension portion protruding from the gate electrode of the first transistor, and the extension portion is extended from the gate electrode of the first transistor in the second direction; the extension portion is at least partially overlapped with the first electrode of the second transistor in a direction perpendicular to the base substrate and is electrically connected with the first electrode of the second transistor; in the first direction, the extension portion has a second side closest to the second capacitor electrode, and the second side is recessed in a direction away from the second capacitor electrode.
    Type: Application
    Filed: November 29, 2019
    Publication date: July 1, 2021
    Inventors: Zhongyuan WU, Yongqian LI, Can YUAN, Zhidong YUAN, Meng LI, Dacheng ZHANG, Lang LIU
  • Publication number: 20210202604
    Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate and sub-pixels on the base substrate. At least one sub-pixel includes a storage capacitor. The storage capacitor includes a second capacitor electrode, a first capacitor electrode and a third capacitor electrode which are sequentially on the base substrate. The first capacitor electrode has a first capacitor electrode side and a second capacitor electrode side opposite to each other in the second direction, and the second capacitor electrode has a third capacitor electrode side and a fourth capacitor electrode side opposite to each other in the second direction; orthographic projections of the first capacitor electrode side and the second capacitor electrode side on the base substrate are between an orthographic projection of the third capacitor electrode side and an orthographic projection of the fourth capacitor electrode side on the base substrate.
    Type: Application
    Filed: November 29, 2019
    Publication date: July 1, 2021
    Inventors: Zhongyuan WU, Yongqian LI, Can YUAN, Zhidong YUAN, Dacheng ZHANG, Lang LIU
  • Publication number: 20210202679
    Abstract: A display substrate and a manufacturing method thereof and a display device are provided. The display substrate includes a base substrate and sub-pixels on the base substrate. The sub-pixels are arranged in a sub-pixel array. At least one sub-pixel includes a first transistor, a second transistor, a third transistor and a storage capacitor. The first electrode of the third transistor is electrically connected to an active layer of the third transistor through a first via hole, and the first electrode of the third transistor is configured to be electrically connected to the light emitting element through a second via hole; the first via hole and the second via hole are at least partially overlapped with each other in a direction perpendicular to the base substrate.
    Type: Application
    Filed: November 29, 2019
    Publication date: July 1, 2021
    Inventors: Meng LI, Zhongyuan WU, Yongqian LI, Can YUAN, Zhidong YUAN, Xuehuan FENG, Lang LIU, Dacheng ZHANG