Patents by Inventor Zifeng Wang

Zifeng Wang 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: 20230274143
    Abstract: A method for rehearsal-free continual learning includes obtaining a set of training samples where training sample in the set of training samples is associated with a respective task of a plurality of different tasks. The method includes obtaining a task-invariant prompt representative of learned knowledge common to each respective task of the plurality of different tasks. The method includes, for each respective task of the plurality of different tasks, obtaining a respective task-specific prompt representative of learned knowledge specific to the respective task. The method includes, during each of one or more training iterations, for each respective training sample in the set of training samples, selecting the respective task-specific prompt representative of the respective task of the respective training sample and training a model using the task-invariant prompt and the selected respective task-specific prompt.
    Type: Application
    Filed: February 24, 2023
    Publication date: August 31, 2023
    Applicant: Google LLC
    Inventors: Zizhao Zhang, Zifeng Wang, Chen-Yu Lee, Ruoxi Sun, Sayna Ebrahimi, Xiaoqi Ren, Guolong Su, Vincent Perot, Tomas Pfister, Han Zhang
  • Patent number: 11710747
    Abstract: An array substrate, a manufacturing method thereof and a display device are provided. The array substrate includes: a base substrate; a first electrode located on the base substrate and including a pad portion, the pad portion including a first surface and a second surface, the second surface being closer to the base substrate than the first surface; a first insulation layer located on the first electrode and including a first via hole; a second insulation layer located on the first insulation layer and including a second via hole; and a second electrode located on the second insulation layer; the second electrode is electrically connected with the first electrode at the pad portion through the first via hole and the second via hole, and an orthographic projection of the pad portion on the base substrate falls within an orthographic projection of the second via hole on the base substrate.
    Type: Grant
    Filed: September 29, 2018
    Date of Patent: July 25, 2023
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fang Yan, Dawei Shi, Lei Yao, Zifeng Wang, Wentao Wang, Lu Yang, Haifeng Xu, Xiaowen Si, Jinfeng Wang, Lei Yan, Jinjin Xue, Lin Hou
  • Patent number: 11693449
    Abstract: A frame includes a support assembly extending in a first direction, two hemming brackets, and at least two detachable fixing structures. The hemming brackets respectively disposed at both sides of the support assembly in the first direction. Each hemming bracket extends in a second direction different from the first direction. An end of the hemming bracket away from the support assembly is a flanged portion. The hemming bracket is fixed to a corresponding end of the support assembly through at least one detachable fixing structure. One of the hemming bracket and the end of the support assembly has at least one via hole, and each detachable fixing structure passing through a via hole to be fixed to another of the hemming bracket and the end of the support assembly. An outer wall of the detachable fixing structure and a hole wall of the via hole has a gap therebetween.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: July 4, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zifeng Wang
  • Patent number: 11681171
    Abstract: A display assembly includes a display device, a first clamping plate and a second clamping plate. The display apparatus has at least one display area, and the first clamping plate and the second clamping plate are disposed on two opposite sides of the display device in a thickness direction thereof. At least one of the first clamping plate and the second clamping plate is located on at least one light-emitting side of the display device, and in a clamping plate located on a light-emitting side of the display device, at least a partial region of a portion covering an active area of the display device is in a transparent state. Edges of the first clamping plate and the second clamping plate have at least one adapter portion, and adapter portions are configured to fix the display assembly to an object in an external environment through at least one adapter.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: June 20, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zifeng Wang, Weiguo Li, Junmin Sun, Qiang Wang, Yunpeng Wu
  • Publication number: 20230142005
    Abstract: A flexible display device (100). The flexible display device (100) includes a flexible display panel (10), an auxiliary structure (20), a first reel (325), and a driving unit (30). The flexible display panel (10) includes a first end (11) and a second end (12). The auxiliary structure (20) includes a third end and a fourth end, and the fourth end is connected with the second end (12). The first reel (325) is connected with the first end (11). When driving the flexible display panel (10) to switch from an unrolled state to a rolled state and driving the auxiliary structure to switch from an unfolded state to a folded state, the driving unit (30) drives the fourth end to move close to the first reel (325) and the first reel (325) to rotate, so as to drive the second end (12) to move close to the first reel (325).
    Type: Application
    Filed: October 26, 2021
    Publication date: May 11, 2023
    Inventors: Zifeng WANG, Hongbo FENG, Yushun JIE, Yan REN, Yunpeng WU
  • Patent number: 11645031
    Abstract: A frame includes a plurality of profile sections and at least one first adapter assembly. Each profile section includes at least one section extension surface, and one of the at least one section extension surface is provided with at least one first groove therein. Each first adapter assembly includes a first position-limiting block provided with at least one first mounting hole therein. The first position-limiting block is configured to be fixed in a first groove during assembly, and to fix other components to the profile section through the at least one first mounting hole.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: May 9, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zifeng Wang, Yan Ren, Lei Cao
  • Patent number: 11644909
    Abstract: An electronic pen button assembly includes a pen core, a housing, and a button. The pen core includes a rod body and a pen tip disposed at a first end of the rod body. A first limiting portion is disposed on the rod body. The housing includes a pen head with a via hole, and a second limiting portion is disposed in the housing. The rod body extends into the housing through the via hole, and the first limiting portion is matably connected to the second limiting portion. The pen core is in sliding fit relative to the housing in an extension direction of the rod body. The button is disposed in the housing, and the bottom is triggerable by a second end of the rod body during sliding of the pen core along the extension direction of the rod body.
    Type: Grant
    Filed: January 19, 2022
    Date of Patent: May 9, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yunpeng Wu, Lei Cao, Zifeng Wang, Yan Ren, Xinyan Shi
  • Publication number: 20230139734
    Abstract: The present disclosure provides a display substrate, a manufacturing method thereof and a display apparatus. The display substrate includes a base substrate, an active structure layer disposed on the base substrate and a source-drain structure layer disposed on the active structure layer. The active structure layer includes a first active layer and a second active layer. A material of the first active layer includes low-temperature polysilicon and a material of the second active layer includes oxide semiconductors. The source-drain structure layer includes a first source-drain electrode and a second source-drain electrode, wherein the first source-drain electrode overlaps with a first side surface of the first active layer through a first via hole and the second source-drain electrode overlaps with a second side surface of the second active layer through a second via hole.
    Type: Application
    Filed: November 20, 2020
    Publication date: May 4, 2023
    Inventors: Xin CAO, Yawei ZHU, Heungsik KIM, Zifeng WANG, Haoyuan FAN
  • Patent number: 11641721
    Abstract: Provided is a display apparatus, including: housing components, and a display screen and a circuit board disposed in the housing components, wherein the housing components include a middle frame, a front case and a rear case; the middle frame includes a frame body and a plate body, wherein the frame body includes a first frame and a second frame opposite to each other, and a third frame connected between the first frame and the second frame; the frame plate is disposed around a corresponding side of the plate body, and both the first frame and the second frame are provided with protruding parts protruding from a first side of the plate body; the rear case is fixed between the two protruding parts and connected to the first side of the plate body; the display screen is disposed in the frame body and fixed on the plate body.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: May 2, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Lei Cao, Jinggang Wei, Wenbin Wang, Junmin Sun, Yunpeng Wu, Zifeng Wang, Yan Ren
  • Publication number: 20230131298
    Abstract: The present disclosure provides an overlapping spliceable display apparatus including a fixing assembly on a back of a display module, for fixing the display module to a support, the fixing assembly includes: an angle adjusting structure, which is connected to the display module, for adjusting an angle of a display surface of the display module in a first plane perpendicular to the display surface; and a position adjusting structure, which is connected to the angle adjusting structure and the support, for adjusting positions of the display module in a first direction, a second direction and a third direction, wherein any two of the first direction, the second direction and the third direction are perpendicular to each other, the first direction and the second direction are each parallel to the first plane, and the third direction is perpendicular to the first plane.
    Type: Application
    Filed: September 1, 2021
    Publication date: April 27, 2023
    Inventor: Zifeng WANG
  • Publication number: 20230122385
    Abstract: The present disclosure relates to the field of display technology, and provides a curvature adjusting apparatus, a display apparatus and a display apparatus jig. The curvature adjusting apparatus is used for adjusting a curvature of a display surface of a flexible display substrate, and includes a rotating structure rotatable around a first rotation axis. The rotating structure is connected to the flexible display substrate and has a curved profile, The curved profile is used for supporting the flexible display substrate, and adjusting the curvature of the display surface of the flexible display substrate by driving the flexible display substrate to bend to different degrees when the rotating structure rotates around the first rotation axis. By applying the present disclosure, the structure is simple, and the curvature of the display surface of the flexible display substrate can be adjusted without other auxiliary tools.
    Type: Application
    Filed: September 1, 2021
    Publication date: April 20, 2023
    Inventor: Zifeng WANG
  • Publication number: 20230086408
    Abstract: There is provided a display apparatus, including: a display module; a first side frame and a second side frame on two sides of the display module in a width direction of the display module; a fixing structure on a non-light-emitting side of the display module and detachably connected to the first side frame and the second side frame, the fixing structure being configured to fix the display module; and an adapter, including a first connection part and a second connection part which are fixedly connected. At least one of a first side surface of the first side frame facing the display module or a second side surface of the second side frame facing the display module is detachably connected to the first connection part, and the second connection part is detachably connected to the fixing structure.
    Type: Application
    Filed: October 20, 2021
    Publication date: March 23, 2023
    Inventors: Wenbin WANG, Lei CAO, Junmin SUN, Zifeng WANG, Yan REN, Jinggang WEI, Yunpeng WU
  • Publication number: 20230072288
    Abstract: Provided is a display device. The display device includes: a support base, a support frame connected to the support base, a glass panel connected to the first support surface, and a display disposed within a cavity formed by the support frame, the support base, and the glass panel. The display is connected to the support frame. The support frame includes: a plurality of support bars, and a movable connection member disposed between each two support bars of the plurality of support bars and configured to connect the two support bars, wherein each of the support bar and the movable connection member is provided with a first support surface, and the movable connection member is configured to move between the two support bars to adjust a size of the support frame.
    Type: Application
    Filed: August 9, 2021
    Publication date: March 9, 2023
    Inventors: Wenbin Wang, Lei Cao, Junmin Sun, Zifeng Wang, Yan Ren, Yunpeng Wu, Jinggang Wei
  • Patent number: 11579742
    Abstract: The present disclosure provides a frame, a display device and a display apparatus. The frame includes at least two frame assemblies. The frame assemblies in different directions are spliced through an adapter, an infrared lamp strip is installed on the frame assembly, the adapter is provided with a bunching member, and a connection line for the infrared lamp strip is bunched around the bunching member when the frame assemblies in different directions are spliced.
    Type: Grant
    Filed: January 30, 2022
    Date of Patent: February 14, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Zifeng Wang, Yan Ren, Yunpeng Wu, Wenbin Wang, Junmin Sun, Lei Cao
  • Publication number: 20230044910
    Abstract: Disclosed in the present application are a support apparatus and a bendable apparatus, relating to the technical field of machinery. The support apparatus comprises a plurality of sequentially connected adjustment structures, every adjustment structure is used for connecting to a back side of a bendable structure, and any two adjacent adjustment structures among the plurality of adjustment structures can perform relative rotation, and thus a curvature of the support apparatus may be adjusted by means of adjusting a rotational angle between every adjustment structure and an adjacent adjustment structure, and consequently a curvature of the bendable structure connected to the support apparatus is adjustable; the bendable structure has relatively high use versatility.
    Type: Application
    Filed: April 8, 2021
    Publication date: February 9, 2023
    Inventor: Zifeng WANG
  • Patent number: 11567397
    Abstract: An electronic device includes: a main body to which a rotating shaft is rotatably connected; a driving motor, provided on the main body, connected to the rotating shaft and configured to drive the rotating shaft to rotate; a flexible display screen, having a first side edge connected to the rotating shaft and capable of completely rolling the flexible display screen onto the rotating shaft or expanding the rolled-up flexible display screen, under a reciprocating rotation of the rotating shaft; and a sucking apparatus provided on the main body and configured to suck the electronic device onto a surface of a carrier.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: January 31, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yan Ren, Ruirui Suo, Xin Liu, Zifeng Wang
  • Publication number: 20220308691
    Abstract: The present disclosure provides a pressure-sensitive writing board and a pressure-sensitive writing device. The pressure-sensitive writing board includes a pressure-sensitive writing panel and a writing monitoring unit. The writing monitoring unit is configured to determine position information about a writing tool at a writing region of the pressure-sensitive writing panel, convert the position information into writing trajectory information, and store the writing trajectory information.
    Type: Application
    Filed: January 14, 2022
    Publication date: September 29, 2022
    Inventor: Zifeng WANG
  • Publication number: 20220312603
    Abstract: A display device includes a display module, a back plate, and a bracket; a side face of the display module facing away from a display side is fixed on a first side face of the back plate, the bracket is fixed on a second side face of the back plate facing away from the first side face; the display module includes a display panel and a first frame, the first frame being disposed on a part of the display panel close to an edge, the bracket includes a second frame, and the display panel is positioned on an inner side of a frame body formed by the first frame and the second frame.
    Type: Application
    Filed: December 29, 2020
    Publication date: September 29, 2022
    Inventor: Zifeng WANG
  • Publication number: 20220310724
    Abstract: A display panel includes a substrate, a drive layer, an isolation column, a light emitting device layer, and a through hole. The substrate has an opening area, a transition area surrounding the opening area, and a display area surrounding the transition area. The drive layer is arranged on a side of the substrate and covers the display area and the transition area. The portion of the drive layer located in the transition area includes a light reflective layer surrounding the opening area. The isolation column is arranged on a surface of the drive layer facing away from the substrate and is located in the transition area. The isolation column surrounds the opening area. A contour line of a projection of the isolation column on the substrate is located inside a contour line of a projection of the light reflective layer on the substrate.
    Type: Application
    Filed: January 12, 2021
    Publication date: September 29, 2022
    Inventors: Jing HU, Haoyuan FAN, Zifeng WANG, Haifeng XU, Yanchun XIE, Junjie TANG, Jongkyun LEE
  • Publication number: 20220299834
    Abstract: Disclosed is a display device including a cover plate, a display panel, a first circuit board, and a rear housing, wherein the cover plate is connected to the rear housing to form an accommodation space, the display panel is assembled with the first circuit board and is disposed in the accommodation space, and the first circuit board includes a first extension portion and a second extension portion, wherein the first extension portion and the second extension portion are connected, the first extension portion extends in a first direction and is attached to the display panel, and the second extension portion extends in a second direction and is attached to the display panel, the first direction being intersected with the second direction.
    Type: Application
    Filed: January 12, 2022
    Publication date: September 22, 2022
    Inventors: Lei CAO, Junmin SUN, Jinggang WEI, Wenbin WANG, Zifeng WANG, Yan REN, Yunpeng WU