Patents by Inventor Guofeng Zhang

Guofeng 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: 20220208910
    Abstract: The present disclosure provides a display panel having a first display area and a second display area, the display panel including: a substrate; a driving device layer on a side of the substrate, including transistors; a first electrode layer in the first display area and on a side of the driving device layer away from the substrate, including first electrodes; a first transparent part in the first display area and between the driving device layer and the first electrode layer, including first padding layers, which are electrically connected to the transistors; and a second transparent part in the first display area and between the first transparent part and the first electrodes, including second padding layers for connecting to the first padding layers, that the transistors transmit signals to the first electrodes through the first padding layers and the second padding layers.
    Type: Application
    Filed: March 30, 2021
    Publication date: June 30, 2022
    Inventors: Guofeng ZHANG, Junqiang WANG
  • Patent number: 11374069
    Abstract: Provided are a display panel, a driving method thereof and a display device. The display panel includes a substrate, a pixel unit layer and an electrochromic layer. The pixel unit layer includes multiple pixel units arranged in an array and each pixel unit includes a main pixel region and a sub-pixel region. Along a direction facing away from the substrate, the main pixel region includes a first electrode, an organic light-emitting layer and a second electrode, and the sub-pixel region includes a third electrode and a fourth electrode. The first electrode is disposed in the same layer as the third electrode, the second electrode is disposed in the same layer as the fourth electrode, and the main pixel region is insulated from the sub-pixel region. The electrochromic layer is disposed on one side of the pixel unit layer facing away from the substrate.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: June 28, 2022
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Junqiang Wang, Guofeng Zhang
  • Patent number: 11367236
    Abstract: A method for generating a three-dimensional local human body model are provided in embodiments of the disclosure. The method for generating a three-dimensional local human body model includes: acquiring bone parameter adjustment information of a three-dimensional local human body model; adjusting bone parameters of the three-dimensional local human body model according to the bone parameter adjustment information; and generating the three-dimensional local human body model according to the adjusted bone parameters.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: June 21, 2022
    Assignee: ZHEJIANG SENSETIME TECHNOLOGY DEVELOPMENT CO., LTD
    Inventors: Chengju Chen, Yazhen Yuan, Chongshan Sheng, Guofeng Zhang
  • Patent number: 11335741
    Abstract: Provided are a display panel and display device. The display panel includes a first display region and a second display region adjacent to the first display region. The second display region includes multiple first light-emitting elements, the first light-emitting element includes a first electrode, a second electrode and a light-emitting layer located between the first electrode and the second electrode, a direction from the light-emitting layer to the first electrode is a light exit direction of the display panel, the second electrode includes a photochromic layer, the photochromic layer includes a photochromic material, the second electrode includes a first state and a second state, and a light transmittance of the second electrode in the first state is greater than a light transmittance of the second electrode in the second state.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: May 17, 2022
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Guofeng Zhang, Junqiang Wang
  • Publication number: 20220148302
    Abstract: Visual localization method and related apparatus are disclosed. In the method, a first candidate image sequence is determined from image library, the image library being configured to construct electronic map, image frames in the first candidate image sequence being sequentially arranged according to degrees of matching with first image, and the first image being an image collected by a camera; an order of the image frames in the first candidate image sequence is adjusted according to target window to obtain second candidate image sequence, the target window being multiple successive image frames including target image frame and determined from the image library, the target image frame being an image matching with second image, which is collected by the camera before the first image is collected, in the image library; and target posture of the camera when the first image is collected is determined according to the second candidate image sequence.
    Type: Application
    Filed: January 26, 2022
    Publication date: May 12, 2022
    Inventors: Hujun BAO, Guofeng ZHANG, Hailin YU, Zhichao YE, Chongshan SHENG
  • Publication number: 20220140292
    Abstract: Provided is an organic light-emitting display panel, including: a thin film transistor layer provided in a display area; an organic light-emitting layer provided in the display area and including light-emitting pixels; a microlens array layer provided in the display area and including microlenses corresponding to the light-emitting pixels; a refractive index matching layer provided in the display area; and a filling layer provided in the non-display area. The refractive index matching layer and the microlens array layer have different refractive indexes. Each microlens includes a first surface that is in contact with the refractive index matching layer. The first surface is a curved surface protruding towards one of the microlens array layer and the refractive index matching layer, which has a smaller refractive index. A material of the filling layer is same as at least one of materials of the microlens array layer and the refractive index matching layer.
    Type: Application
    Filed: December 22, 2021
    Publication date: May 5, 2022
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Guofeng ZHANG, Quanpeng YU
  • Publication number: 20220108528
    Abstract: An information processing method includes: three-dimensional (3D) point information of a 3D point cloud is obtained; a two-dimensional (2D) point cloud image from projection of the 3D point cloud on a horizontal plane is generated based on the 3D point information; and projection coordinates of 3D points comprised in the 3D point cloud in a reference coordinate system of a reference plane graph are determined based on a consistency degree that the 2D point cloud image has with the reference plane graph, where the reference plane graph is used for representing a projection graph with reference coordinates that is obtained through the projection of a target object on the horizontal plane, and the 3D point cloud is used for representing 3D space information of the target object.
    Type: Application
    Filed: December 15, 2021
    Publication date: April 7, 2022
    Inventors: Youji FENG, Zhichao Ye, Jiacheng Jin, Guofeng Zhang
  • Publication number: 20220102421
    Abstract: Display panels and display devices are provided. The display panel may include a first display area, a second display area and a third display area with a light transmittance of the first display area being greater than a light transmittance of the third display area; first pixel circuits; second pixel circuits; third pixel circuits; first light-emitting units, second light-emitting units; third light-emitting units; and first signal lines extending along a first direction and spaced apart along a second direction intersecting the first direction. Each first signal line is connected with one or more first pixel circuits, one or more second pixel circuits and one or more third pixel circuit, and the one or more first pixel circuit and the one or more third pixel circuit electrically connected to each of at least one portion of first signal lines are misaligned along the first direction.
    Type: Application
    Filed: December 16, 2020
    Publication date: March 31, 2022
    Inventors: Xingxing YANG, Yangzhao MA, Guofeng ZHANG
  • Publication number: 20220084249
    Abstract: Collecting time of collecting a first image frame to be processed is acquired. Calibrated time of the first image frame is acquired by correcting the collecting time of the first image frame according to currently calibrated time offset information for the first image frame. A current location is determined based on the first image frame and inertial sensor information acquired at the calibrated time of the first image frame.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 17, 2022
    Inventors: Danpeng CHEN, Nan WANG, Bangbang YANG, Guofeng ZHANG
  • Patent number: 11264431
    Abstract: A display panel includes a display region that includes a normal display region and a transparent display region. The normal display region and the transparent display region are connected. The transparent display region includes multiple transparent areas and multiple pixels. The transparent areas have the same shape. For two adjacent transparent areas, a shape of one transparent area has a different placement angle than a shape of another transparent area.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: March 1, 2022
    Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Guofeng Zhang, Junqiang Wang
  • Publication number: 20220059579
    Abstract: Provided are a display panel and a display device. The display panel includes a base substrate; a first transistor including a first active layer including silicon, a first gate, a first source and a first drain; a second transistor including a second active layer including an oxide semiconductor, a second gate located on a side of the second active layer facing away from the base substrate, a second source and a second drain; a first insulating layer including an inorganic material; and a planarization layer including an organic material. The first insulating layer includes a first insulating sublayer and a second insulating sublayer. The second insulating sublayer is located on a side of the first insulating sublayer facing away from the base substrate, and a compactness of the second insulating sublayer is greater than a compactness of the first insulating sublayer.
    Type: Application
    Filed: November 2, 2021
    Publication date: February 24, 2022
    Inventors: Guofeng Zhang, Yong Yuan
  • Publication number: 20220049960
    Abstract: A method for aligning coordinate systems includes: in response to that a second terminal triggers alignment of the coordinate systems, obtaining, by the second terminal, map information stored in a cloud or obtaining, by the second terminal, the map information from a first terminal; and transforming, by the second terminal, a second coordinate system of the second terminal into an initial coordinate system corresponding to the map information stored in the cloud or obtained from the first terminal, or transforming, by the second terminal, the initial coordinate system corresponding to the map information stored in the cloud or obtained from the first terminal into the second coordinate system of the second terminal; herein the initial coordinate system is used for defining a positional relationship between the first terminal and the second terminal when the map information is in a sharing state.
    Type: Application
    Filed: October 29, 2021
    Publication date: February 17, 2022
    Applicant: Zhejiang SenseTime Technology Development Co., Ltd.
    Inventors: Weijian XIE, Quanhao QIAN, Nan WANG, Guofeng ZHANG
  • Publication number: 20220043164
    Abstract: Provided is a positioning method and device, an electronic device and a storage medium. The method includes that: an identification image captured at a first site is acquired; according to identification information of a first identifier extracted from the identification image, position information of the first identifier is determined; and position information of the first site is determined based on the position information of the first identifier and projection information of the first identifier in the identification image.
    Type: Application
    Filed: October 26, 2021
    Publication date: February 10, 2022
    Inventors: Chongshan SHENG, Guofeng ZHANG
  • Patent number: 11239448
    Abstract: Provided is an organic light-emitting display panel, including: a thin film transistor layer provided in a display area; an organic light-emitting layer provided in the display area and including light-emitting pixels; a microlens array layer provided in the display area and including microlenses corresponding to the light-emitting pixels; a refractive index matching layer provided in the display area; and a filling layer provided in the non-display area. The refractive index matching layer and the microlens array layer have different refractive indexes. Each microlens includes a first surface that is in contact with the refractive index matching layer. The first surface is a curved surface protruding towards one of the microlens array layer and the refractive index matching layer, which has a smaller refractive index. A material of the filling layer is same as at least one of materials of the microlens array layer and the refractive index matching layer.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: February 1, 2022
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Guofeng Zhang, Quanpeng Yu
  • Patent number: 11238799
    Abstract: A display panel includes a first display region and a second display region; the first display region includes first sub-pixels provided with first pixel density; and the second display region includes second sub-pixels provided with second pixel density, where the first pixel density is lower than the second pixel density. During one frame of picture display, a light-emitting phase of the first sub-pixel includes a first light-emitting period, and a light-emitting phase of the second sub-pixel includes a second light-emitting period; for same target brightness, the first sub-pixel emits light with first light-emitting brightness in the first light-emitting period, and the second sub-pixel emits light with second light-emitting brightness in the second light-emitting period, where the first light-emitting brightness is higher than the second light-emitting brightness; and the first light-emitting period is shorter than the second light-emitting period.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: February 1, 2022
    Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Shucheng Ge, Guofeng Zhang, Junqiang Wang, Yong Yuan
  • Publication number: 20210408194
    Abstract: The present disclosure provides a display panel and a display device. The display panel includes a display area, including a first display area. The first display area includes light non-transmissive areas and light transmissive areas, and sub-pixels in the light non-transmissive areas include a first light-shielding layer, a pixel driving circuit, and a light-emitting structure layer. In a direction perpendicular to a substrate, a projection of the first light-shielding layer covers a projection of the light-emitting structure layer and a projection of at least one transistor of the pixel driving circuit.
    Type: Application
    Filed: August 13, 2020
    Publication date: December 30, 2021
    Inventor: Guofeng ZHANG
  • Patent number: 11210805
    Abstract: A simultaneously localization and dense three-dimensional reconstruction method, being capable of processing rapid motion and frequent closing of a loop in a robust manner, and operating at any time in a large-scale scene. Provided by the method is a key frame-based simultaneous localization and map construction framework. First, depth and color information are used simultaneously, and the framework may operate on central processing unit (CPU) at high speed based on localization of the key frame, and operate in challenging scene in robust manner. To reduce accumulated errors, the method introduces increment bundle adjustment, which may greatly reduce an operation amount and enable local and global bundle adjustment to be completed in a unified framework. Secondly, provided by the method is a key frame-based fusion method, and a model may be generated online and a three-dimensional model may be updated in real time during adjustment of the key frame's pose.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: December 28, 2021
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Hujun Bao, Guofeng Zhang, Haomin Liu, Chen Li
  • Patent number: 11199414
    Abstract: A method for simultaneous localization and mapping is provided, which can reliably handle strong rotation and fast motion. The method provided a simultaneous localization and mapping algorithm framework based on a key frame, which can support rapid local map extension. Under this framework, a new feature tracking method based on multiple homography matrices is provided, and this method is efficient and robust under strong rotation and fast motion. A camera orientation optimization framework based on a sliding window is further provided to increase motion constraint between successive frames with simulated or actual IMU data. Finally, a method for obtaining a real scale of a specific plane and scene is provided in such a manner that a virtual object is placed on a specific plane in real size.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: December 14, 2021
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Guofeng Zhang, Hujun Bao, Haomin Liu
  • Publication number: 20210384473
    Abstract: Provided is an organic light-emitting display panel, including: a thin film transistor layer provided in a display area; an organic light-emitting layer provided in the display area and including light-emitting pixels; a microlens array layer provided in the display area and including microlenses corresponding to the light-emitting pixels; a refractive index matching layer provided in the display area; and a filling layer provided in the non-display area. The refractive index matching layer and the microlens array layer have different refractive indexes. Each microlens includes a first surface that is in contact with the refractive index matching layer. The first surface is a curved surface protruding towards one of the microlens array layer and the refractive index matching layer, which has a smaller refractive index. A material of the filling layer is same as at least one of materials of the microlens array layer and the refractive index matching layer.
    Type: Application
    Filed: July 28, 2020
    Publication date: December 9, 2021
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Guofeng ZHANG, Quanpeng YU
  • Publication number: 20210383580
    Abstract: The disclosure relates to a method, apparatus and system for anchor sharing, an electronic device and a storage medium. The method for anchor sharing includes: receiving, by a server, an anchor sharing request from a terminal, wherein the anchor sharing request comprises information associated with a present scene scanned by the terminal and an identifier of a to-be-shared anchor acquired by the terminal; determining, by the server, shared position information of the to-be-shared anchor in the present scene according to the anchor sharing request; and transmitting, by the server, the shared position information to the terminal.
    Type: Application
    Filed: August 20, 2021
    Publication date: December 9, 2021
    Inventors: Jiacheng JIN, Jinyi Liao, Weijian Xie, Guofeng Zhang