Patents by Inventor Hequn Zhang

Hequn 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: 9841690
    Abstract: A method for correcting an exposure pattern on a substrate includes obtaining, based on the exposure pattern, displacement adjustment parameters for adjusting displacements of a worktable supporting the substrate in each of a first direction and a second direction, a rotation angle adjustment parameter for adjusting a rotation angle of the worktable in a rotation direction, and a gap adjustment parameter for adjusting a gap between the worktable and a mask plate. The first direction and the second direction are perpendicular to each other in a horizontal plane. The rotation direction is a direction in which the worktable rotates around a central axis of a base table supporting the mask plate. The method further includes moving the worktable based on the displacement adjustment parameters, the rotation angle adjustment parameter and the gap adjustment parameter.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: December 12, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yifeng Li, Hequn Zhang, Xiangming Meng, Hongwei Xing
  • Patent number: 9719723
    Abstract: Disclosed is a substrate support structure, a vacuum drying apparatus and a method for vacuum drying a substrate. The substrate support structure comprises: a support pin having a top end for supporting a substrate; and an auxiliary support assembly including: a drive device; a support rod driven by the drive device; and a support disc disposed at a top end of the support rod and made of flexible material adapted to support the substrate, wherein the drive device is configured to drive the support rod to move in a direction parallel to an axial direction of the support pin so as to make the support disc positioned below or above the top end of the support pin as the support rod moves, so that the substrate is selectively supported by the support disc or the support pin. The substrate support structure, the vacuum drying apparatus and the method for vacuum drying a substrate can prevent the substrate from being easily scratched and avoid poor quality and uneven brightness of the substrate.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: August 1, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hongwei Xing, Huihui Mu, Min Yuan, Hequn Zhang, Longgen Yang
  • Publication number: 20170023864
    Abstract: A method for correcting an exposure pattern on a substrate includes obtaining, based on the exposure pattern, displacement adjustment parameters for adjusting displacements of a worktable supporting the substrate in each of a first direction and a second direction, a rotation angle adjustment parameter for adjusting a rotation angle of the worktable in a rotation direction, and a gap adjustment parameter for adjusting a gap between the worktable and a mask plate. The first direction and the second direction are perpendicular to each other in a horizontal plane. The rotation direction is a direction in which the worktable rotates around a central axis of a base table supporting the mask plate. The method further includes moving the worktable based on the displacement adjustment parameters, the rotation angle adjustment parameter and the gap adjustment parameter.
    Type: Application
    Filed: April 21, 2016
    Publication date: January 26, 2017
    Inventors: Yifeng Li, Hequn Zhang, Xiangming Meng, Hongwei Xing
  • Publication number: 20160320124
    Abstract: Disclosed is a substrate support structure, a vacuum drying apparatus and a method for vacuum drying a substrate. The substrate support structure comprises: a support pin having a top end for supporting a substrate; and an auxiliary support assembly including: a drive device; a support rod driven by the drive device; and a support disc disposed at a top end of the support rod and made of flexible material adapted to support the substrate, wherein the drive device is configured to drive the support rod to move in a direction parallel to an axial direction of the support pin so as to make the support disc positioned below or above the top end of the support pin as the support rod moves, so that the substrate is selectively supported by the support disc or the support pin. The substrate support structure, the vacuum drying apparatus and the method for vacuum drying a substrate can prevent the substrate from being easily scratched and avoid poor quality and uneven brightness of the substrate.
    Type: Application
    Filed: April 1, 2016
    Publication date: November 3, 2016
    Inventors: Hongwei Xing, Huihui Mu, Min Yuan, Hequn Zhang, Longgen Yang