Patents by Inventor Zhanfeng CAO

Zhanfeng CAO 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: 20220199862
    Abstract: Embodiments of the present disclosure provide an intermediate substrate, including: a first substrate; a black photoresist layer on a side of the first substrate; and a plurality of light emitting devices on a side of the black photoresist layer away from the first substrate. Each of the plurality of light emitting devices has a light-exiting side for emergence of light emitted by the light emitting device, the light-exiting side is in contact with the black photoresist layer, and the light emitting device includes a driving electrode for introducing a driving signal.
    Type: Application
    Filed: May 28, 2020
    Publication date: June 23, 2022
    Inventors: Zhiwei LIANG, Yingwei LIU, Guoqiang WANG, Muxin DI, Ke WANG, Hsuanwei MAI, Zhanfeng CAO
  • Publication number: 20220190263
    Abstract: A display panel is provided. The display panel may include a flexible substrate (100) including a display region (20) and a dummy region (22). The dummy region (22) may be at periphery of the display region (20). The display region (20) may include a plurality of display islands (26), a plurality of first openings (28) surrounding each of the plurality of display islands (26), a plurality of first bridges (30) connecting the plurality of display islands (26), and a plurality of display units on the plurality of display islands (26), respectively. The dummy region (22) may include a plurality of dummy islands, a plurality of dummy openings surrounding each of the plurality of dummy islands, and a plurality of dummy bridges connecting the plurality of dummy islands. The dummy region (22) may not include display units.
    Type: Application
    Filed: June 2, 2020
    Publication date: June 16, 2022
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shengguang Ban, Zhanfeng Cao, Ke Wang, Pinfan Wang
  • Patent number: 11353982
    Abstract: A feature recognition structure provided by the embodiments of the present disclosure comprises: a plurality of first electrodes and a plurality of second electrodes disposed on a base substrate, wherein orthogonal projections of the plurality of first electrodes and of the plurality of second electrodes on the base substrate intersect each other to form a plurality of overlap regions; and a plurality of functional patterns disposed between one or more of the plurality of first electrodes and corresponding one or more of the plurality of second electrodes, wherein an orthogonal projection of each of the plurality of functional patterns on the base substrate is located in a corresponding one of the plurality of overlap regions; the functional patterns comprise at least one piezoelectric material, and have at least two types of sub-patterns, and different types of the sub-patterns have substantially different piezoelectric coefficients.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: June 7, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shengguang Ban, Zhanfeng Cao, Qi Yao, Yankai Gao
  • Publication number: 20220170152
    Abstract: The present disclosure provides an electrochemical deposition apparatus set. The electrochemical deposition apparatus set includes: an electrochemical deposition device configured to form an electrochemical deposition film layer on an area to be coated of a substrate; an antioxidation treatment device located on a side of the electrochemical deposition device and configured to performing antioxidation treatment on the substrate formed with the electrochemical deposition film layer; a transmission device configured to carry the substrate and drive the substrate to move at least from the electrochemical deposition device to the antioxidation treatment device.
    Type: Application
    Filed: September 28, 2021
    Publication date: June 2, 2022
    Inventors: Guangcai YUAN, Junwei YAN, Chengfei WANG, Guocai ZHANG, Shihao DONG, Shaodong SUN, Qi QI, Zhanfeng CAO
  • Patent number: 11342459
    Abstract: The disclosure relates to a thin film transistor structure, an array substrate, and a method for manufacturing a thin film transistor structure. The thin-film transistor structure includes a base substrate, a thin film transistor on the base substrate. Wherein the thin film transistor includes an active layer and a source/drain electrode on a side, facing towards the base substrate, of the active layer. Wherein the source/drain electrode has a protrusion protruding from an edge portion of the active layer in a direction parallel to a surface of the base substrate.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: May 24, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Luke Ding, Zhanfeng Cao, Jingang Fang, Liangchen Yan, Ce Zhao, Dongfang Wang
  • Patent number: 11335712
    Abstract: An array substrate is provided. The array substrate includes a base substrate; a first bonding pad layer including a plurality of first bonding pads on a first side of the base substrate; a second bonding pad layer including a plurality of second bonding pads on a second side of the base substrate, wherein the second side is opposite to the first side; and a plurality of signal lines on a side of the second bonding pad layer away from the base substrate. A respective one of the plurality of second bonding pads extends through the base substrate to electrically connect to a respective one of the plurality of first bonding pads. The respective one of the plurality of first bonding pads includes a protruding portion protruding away from the first side of the base substrate along a direction from the second side to the first side.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: May 17, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Zhiwei Liang, Muxin Di, Ke Wang, Yingwei Liu, Xiaoyan Zhu, Zhanfeng Cao, Guangcai Yuan
  • Publication number: 20220131044
    Abstract: A driving backplane, a display panel and a display apparatus are provided. The driving backplane includes: a base substrate, and a plurality of connection electrode groups and a plurality of correction structures disposed on the base substrate, each of the connection electrode groups includes: a first connection electrode and a second connection electrode the first connection electrode and the second connection electrode are arranged on a same layer; a first gap is formed between the first connection electrode and the second connection electrode, and a first group of opposite edges includes: an edge, close to the first gap, of the first connection electrode; and an edge, close to the first gap, of the second connection electrode; a second group of opposite edges includes: an edge, far away from the first gap, of the first connection electrode; and an edge, far away from the first gap, of the second connection electrode.
    Type: Application
    Filed: August 20, 2021
    Publication date: April 28, 2022
    Inventors: Haixu LI, Mingxing WANG, Guangcai YUAN, Zhanfeng CAO, Ke WANG, Feng QU
  • Patent number: 11316003
    Abstract: Disclosed are an array substrate, and a display device, and a method for manufacturing the same. The array substrate includes: a base substrate, and a thin film transistor, a planarization pattern, a bonding pattern, and a conductive structure that are disposed on the base substrate. The thin film transistor, the planarization pattern, and the bonding pattern are laminated in a direction going distally from the base substrate. The planarization pattern is provided with a via and a groove, the conductive structure is disposed in the via, wherein the bonding pattern is conductive and is electrically connected to the thin film transistor by the conductive structure, an orthographic projection of the bonding pattern on the base substrate falls outside an orthographic projection of the groove on the base substrate, and the groove is configured to accommodate an adhesive.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: April 26, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xue Dong, Guangcai Yuan, Haixu Li, Zhanfeng Cao, Ke Wang, Zhijun Lv, Fei Wang, Huijuan Wang, Zhiwei Liang, Xinhong Lu
  • Publication number: 20220123024
    Abstract: An array substrate, a method for preparing the array substrate, and a backlight module are disclosed. Before electroplating a first metal layer on a pattern of a seed layer, the method further includes: forming a pattern of a compensation electrode wire electrically connected with a lead electrode on a side, where the lead electrode is formed, of a base substrate. The compensation electrode wire is at least on a second side of a wiring region, the pattern of the lead electrode is formed at a first side of the wiring region, and the first side and the second side are different sides. In the electroplating process, the lead electrode is connected with a negative pole of a power supply, the compensation electrode wire is electrically connected with the lead electrode, thus an area of an electroplating negative pole generating electric field lines is increased by utilizing the compensation electrode wire.
    Type: Application
    Filed: January 3, 2020
    Publication date: April 21, 2022
    Inventors: Zhanfeng CAO, Yingwei LIU, Ke WANG, Guocai ZHANG, Jianguo WANG, Zhiwei LIANG, Haixu LI, Muxin DI
  • Patent number: 11302722
    Abstract: An array substrate, manufacturing method thereof, and a display device according to some arrangements of the present disclosure include: a first transistor and a second transistor; an active layer of the second transistor is disposed on a side of the interlayer dielectric layer of the first transistor away from the substrate; an insulating layer is disposed between the interlayer dielectric layer of the first transistor and the active layer of the second transistor, and the insulating layer has an ability to block hydrogen.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: April 12, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Haixu Li, Zhanfeng Cao, Qi Yao, Dapeng Xue, Shuilang Dong
  • Patent number: 11289464
    Abstract: A display substrate, a method for fabricating the same, and a display device are provided. The display substrate includes: a substrate 100 that includes a first via filled with a first conductive section 4011; a drive thin film transistor that is placed on a first side of the substrate and includes a first terminal 2051; and a light emitting diode chip 300 that is placed on a second side of the substrate distal to the drive thin film transistor; wherein the light emitting diode chip 300 includes a first lead 301 and a second lead 302; the first lead 301 is in electrical contact with the first terminal 2051 through the first conductive section 4011; and the second lead 302 is in electrical contact with a second electrode 402 that is placed on the second side of the substrate.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: March 29, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Zhiwei Liang, Yingwei Liu, Muxin Di, Ke Wang, Zhanfeng Cao, Shibo Jiao
  • Patent number: 11276343
    Abstract: A substrate for light-emitting diode, a backlight module and a display device are disclosed. The substrate for light-emitting diode includes a plurality of light-emitting sub-regions, and each of the plurality of light-emitting sub-regions includes at least two anode electrode pads electrically connected through a first parallel-connection line, and at least two cathode electrode pads electrically connected through a second parallel-connection line. The at least two cathode electrode pads are disposed in one-to-one correspondence with the at least two anode electrode pads. At least one series-connection electrode pad group is further disposed between the anode electrode pad and the cathode electrode pad which are corresponding to each other; and each of the at least one series-connection electrode pad group includes two series electrode pads which are electrically connected through a series-connection line.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: March 15, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shengguang Ban, Zhanfeng Cao, Zhiwei Liang, Shi Shu
  • Patent number: 11276739
    Abstract: A display substrate is provided. The display substrate includes a substrate (1), a first transistor (2) and a second transistor (3) on the substrate (1), directions of intrinsic threshold voltage shifts of the first transistor (2) and the second transistor (3) being opposite; and a shift adjustment structure (4) on the substrate (1). The shift adjustment structure (4) may be configured to input adjustment signals to the first transistor (2) and the second transistor (3) respectively to make threshold voltages of the first transistor (2) and the second transistor (3) shift in directions opposite to the directions of their intrinsic threshold voltage shifts respectively.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: March 15, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanan Niu, Jiushi Wang, Zhanfeng Cao, Qi Yao, Feng Zhang, Wusheng Li, Feng Guan, Lei Chen, Hongwei Tian
  • Publication number: 20220068873
    Abstract: A backplane (0) and a fabrication method therefor, a chip (01) bonding method, and a display device. The backplane (0) comprises: a base substrate (10); and conductive connection tubes (20) located on the base substrate (10). One end of each conductive connection tube (20) is connected to the base substrate (10), and the side walls of the conductive connection tubes (20) are provided with openings that penetrate said side walls. During the process of bonding the chip (01) to the backplane (0), when the conductive connection tubes (20) are heated, air within inner cavities of the conductive connection tubes (20) can be discharged by means of the openings on the side walls of the conductive connection tubes (20), which helps to ensure the reliability of the bonding between the chip (01) and the backplane (0).
    Type: Application
    Filed: October 19, 2020
    Publication date: March 3, 2022
    Inventors: Guangcai YUAN, Zhiwei LIANG, Ke WANG, Zhanfeng CAO
  • Patent number: 11256891
    Abstract: An array substrate, a method of manufacturing the array substrate, and a display apparatus are disclosed. The array substrate includes: a base substrate; a plurality of sensing elements disposed on a first side of the base substrate and each configured to convert at least one of a light signal and an acoustic wave signal into an electrical signal; and a plurality of switching devices disposed on a second side of the base substrate opposite to the first side. The plurality of switching devices include a plurality of first switching elements, and each of the plurality of first switching elements is electrically connected to a corresponding one of the plurality of sensing elements to transmit the electrical signal.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: February 22, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haixu Li, Zhanfeng Cao, Jianguo Wang
  • Patent number: 11257852
    Abstract: A circuit backplane of a display panel, a method for manufacturing the same, and a display panel are provided. The circuit backplane includes a substrate and a plurality of circuit regions on the substrate. Each of the plurality of circuit regions includes a cathode soldered electrode, an anode soldered electrode, and a flow blocking island that are on the substrate. The flow blocking island is between the cathode soldered electrode and the anode soldered electrode, and in a thickness direction of the circuit backplane, a height of the flow blocking island is greater than each of a height of the cathode soldered electrode and a height of the anode soldered electrode.
    Type: Grant
    Filed: December 25, 2019
    Date of Patent: February 22, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haixu Li, Zhanfeng Cao, Ke Wang
  • Patent number: 11244966
    Abstract: A micro LED display panel and a method for fabricating the same are disclosed, and the micro LED display panel includes a TFT back panel, and a micro LED fixed on the TFT back panel, wherein the TFT back panel includes a substrate, and a first insulation layer and a second insulation layer stacked over the substrate in that order, wherein the first insulation layer includes a groove filled with the second insulation layer, and a normal projection of the groove onto the substrate does not overlap with a normal projection of a TFT area in the TFT back panel onto the substrate, wherein the rigidity of the second insulation layer is lower than the rigidity of the first insulation layer.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: February 8, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Haixu Li, Zhanfeng Cao, Ke Wang
  • Patent number: 11245037
    Abstract: The present application provides an array substrate. The array substrate includes a base substrate; a light shielding layer on the base substrate; a metal oxide layer on a side of the light shielding layer distal to the base substrate; and an active layer on a side of the metal oxide layer distal to the base substrate. The metal oxide layer includes a metal oxide material. The light shielding layer includes amorphous silicon. An orthographic projection of the light shielding layer on the base substrate substantially overlaps with an orthographic projection of the active layer on the base substrate, and substantially overlaps with an orthographic projection of the metal oxide layer on the base substrate.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: February 8, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Shengguang Ban, Zhanfeng Cao, Qi Yao
  • Patent number: 11239298
    Abstract: An Organic Light-emitting Diode (OLED) display substrate, a method of forming the same and a display device are provided. The OLED display substrate includes: a driving thin film transistor located on a base substrate and configured to drive an OLED light-emitting unit to emit light; and a photosensitive thin film transistor located on the base substrate and configured to be capable of detecting light emitted by the OLED light-emitting unit and generating an electrical signal, at least a part of film layers of the photosensitive thin film transistor and at least a part of film layers of the driving thin film transistor are disposed at a same layer and made of a same material.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: February 1, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Muxin Di, Yingwei Liu, Zhiwei Liang, Haixu Li, Zhanfeng Cao
  • Publication number: 20220028898
    Abstract: The present disclosure provides a driving substrate including: a flexible substrate base, a plurality of thin film transistors on the flexible substrate base and a first conductive pattern layer on a side of the thin film transistors distal to the flexible substrate base. The first conductive pattern layer includes: a plurality of first connection terminals in the display region and a plurality of signal supply lines in the bendable region. A first number of first connection terminals are electrically coupled to first electrodes of the plurality of thin film transistors. The plurality of signal supply lines are coupled to a second number of first connection terminals other than the first number of first connection terminals. At least one inorganic insulating layer including a hollowed-out pattern in the bendable region is between the first conductive pattern layer and the flexible substrate base.
    Type: Application
    Filed: June 22, 2021
    Publication date: January 27, 2022
    Inventors: Xinhong LU, Fangzhen ZHANG, Guangcai YUAN, Zhanfeng CAO, Jiushi WANG, Ke WANG, Xiaoyan ZHU, Qi QI, Jingshang ZHOU, Zhaohui QIANG, Zhiwei LIANG