Patents by Inventor Tonghua Yang

Tonghua Yang 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: 10908331
    Abstract: A display substrate and a manufacturing method thereof, and a display panel are provided. The display substrate includes a base substrate with a black matrix BM disposed thereon. The base substrate is provided with a display area and a non-display area, and the BM disposed in the non-display area comprises a first BM portion and a second BM portion. The first BM portion and the second BM portion are sequentially arranged in a direction away from the center of the base substrate, and a gap exists between the first BM portion and the second BM portion. When an external electric field exists around the display substrate, the second BM portion can effectively shield the external electric field, thereby effectively preventing the external electric field from affecting the display area of the display panel. Thus, the display effect of the display substrate is improved.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: February 2, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: He Feng, Dong Wang, Jiyu Wan, Tonghua Yang
  • Publication number: 20200405567
    Abstract: An intersection blind-guiding system includes: a blind-guiding terminal, a plurality of blind road sensors, and a processor configured to be coupled to the blind road sensors. The blind-guiding terminal includes a blind-guiding terminal sensor configured to transmit a sensing signal. The blind road sensors include at least one first blind road sensor and at least one second blind road sensor. The blind road sensors are configured to separately receive the sensing signal transmitted by the blind-guiding terminal sensor, and upload corresponding sensing information. The processor is configured to receive the sensing information uploaded by the blind road sensors, locate a current position of a blind person carrying the blind-guiding terminal, determine a direction in which the blind person previously traveled, determine geographic distribution information of the current position of the blind person, and send a command carrying the geographical distribution information.
    Type: Application
    Filed: March 11, 2019
    Publication date: December 31, 2020
    Inventors: Nan CHEN, Yongzhi SONG, Dong WANG, Tonghua YANG, Guohua ZHANG
  • Patent number: 10782454
    Abstract: A black matrix layer for defining a plurality of subpixel regions in a display substrate is provided. The black matrix layer includes a micro-groove region having a plurality of micro-grooves spaced apart from each other. A depth of each of the plurality of micro-grooves at least partially extends through a depth of the black matrix layer. At least one of the plurality of micro-grooves has an elongated shape extending along an elongation direction.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: September 22, 2020
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Display Technology Co., Ltd.
    Inventors: Jiyu Wan, Tonghua Yang, Jingjing Jiang, He Feng, Sikai Zhang
  • Patent number: 10466528
    Abstract: A mother plate for a color filter substrate is provided. The mother plate comprises: a base substrate comprising at least a first region and a second region, wherein each of the first region and the second region comprises a plurality of opening structures defined by a black matrix, sizes of the opening structures in the first region are larger than sizes of the opening structures in the second region.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: November 5, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Tonghua Yang, He Feng, Jiyu Wan, Sikai Zhang, Dong Wang
  • Publication number: 20190146124
    Abstract: The present application discloses a black matrix layer for defining a plurality of subpixel regions in a display substrate. The black matrix layer includes a micro-groove region having a plurality of micro-grooves spaced apart from each other. A depth of each of the plurality of micro-grooves at least partially extends through a depth of the black matrix layer. At least one of the plurality of micro-grooves has an elongated shape extending along an elongation direction.
    Type: Application
    Filed: November 15, 2017
    Publication date: May 16, 2019
    Applicants: BOE Technology Group Co., Ltd., Beijing BOE Display Technology Co., Ltd.
    Inventors: Jiyu Wan, Tonghua Yang, Jingjing Jiang, He Feng, Sikai Zhang
  • Patent number: 10274798
    Abstract: A black matrix structure and manufacturing method thereof, an array substrate, a color filter substrate and a display apparatus are provided. The black matrix structure comprises a first black matrix and a plurality of predefined opening regions arranged in an array and surrounded by lines of the first black matrix, wherein, each of the predefined opening regions is provided with an opening therein, and at least one of the predefined opening regions is provided with a second black matrix therein, edges of shading pattern of the second black matrix are adjacent to the opening or in contact with at least one line edge of the first black matrix, and length of a part of each line edge of the first black matrix being in contact with the edge of shading pattern of the second black matrix is less than length of this line edge of the first black matrix.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: April 30, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Hongming Zhan, Lifeng Lin, Xibin Shao, Ming Chen, Woong Kim, Zhanchang Bu, Yu Ma, Tonghua Yang
  • Publication number: 20190094428
    Abstract: A display substrate and a manufacturing method thereof, and a display panel are provided. The display substrate includes a base substrate with a black matrix BM disposed thereon. The base substrate is provided with a display area and a non-display area, and the BM disposed in the non-display area comprises a first BM portion and a second BM portion. The first BM portion and the second BM portion are sequentially arranged in a direction away from the center of the base substrate, and a gap exists between the first BM portion and the second BM portion. When an external electric field exists around the display substrate, the second BM portion can effectively shield the external electric field, thereby effectively preventing the external electric field from affecting the display area of the display panel. Thus, the display effect of the display substrate is improved.
    Type: Application
    Filed: May 31, 2018
    Publication date: March 28, 2019
    Inventors: He Feng, Dong Wang, Jiyu Wan, Tonghua Yang
  • Patent number: 10197912
    Abstract: A method for manufacturing a color photoresist pattern in a color filter is provided. The method includes applying a layer of negative color resist onto a substrate; exposing the layer of negative color resist through a mask; and developing the exposed layer of negative color resist with a developer composition which comprises 0.01 to 5.0 parts by weight of inorganic or organic acids, 0.01 to 5.0 parts by weight of surfactant, 0.1 to 10.0 parts by weight of water-soluble organic solvent, 85 to 99 parts by weight of water, and 0 to 2 parts by weight of additives, based on 100 parts by weight of the developer composition.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: February 5, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Tonghua Yang, Hongjiang Wu, Min Li, Jikai Zhang
  • Publication number: 20180113355
    Abstract: A mother plate for a color filter substrate is provided. The mother plate comprises: a base substrate comprising at least a first region and a second region, wherein each of the first region and the second region comprises a plurality of opening structures defined by a black matrix, sizes of the opening structures in the first region are larger than sizes of the opening structures in the second region.
    Type: Application
    Filed: August 16, 2017
    Publication date: April 26, 2018
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Tonghua YANG, He FENG, Jiyu WAN, Sikai ZHANG, Dong WANG
  • Patent number: 9946109
    Abstract: The present application discloses a color filter, comprising: a substrate; a black matrix layer formed on the substrate; color film layers formed on at least one first sub-pixel opening area and a plurality of second sub-pixel opening areas on the substrate; wherein the size of the first sub-pixel opening area is smaller than the size of the second sub-pixel opening area; the size of the color film layer on the first sub-pixel opening area is smaller than the size of the color film layer on the second sub-pixel opening area; a flat layer formed on the color film layer; an alignment mark formed on the flat layer and located at a designated position around the first sub-pixel opening area; a spacer layer formed on the flat layer.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: April 17, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Min Li, Jingjing Jiang, Yu Xiao, Xiaoguang Li, Tonghua Yang
  • Patent number: 9752052
    Abstract: Disclosed are an auto-repairing composition for overcoat layer, a method of producing the same, and a display apparatus. The composition for overcoat layer comprising 1-10 wt % of microcapsules based on the total weight of the composition for overcoat layer, said microcapsule including a capsule wall and a capsule core, wherein the capsule wall comprises an alkali-insoluble resin, and the capsule core comprises, based on the total weight of the capsule core, 30-60 wt % of a photo-curable unsaturated oligomer, 30-60 wt % of a photo-polymerizable monomer, 1-10 wt % of a photo-initiator, and 0-5 wt % of additive.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: September 5, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLODY CO., LTD.
    Inventors: Tonghua Yang, Min Li, Jikai Zhang, Sikai Zhang, He Feng
  • Patent number: 9644122
    Abstract: The invention discloses a modified acrylate adhesive resin and a production process of the same, a photosensitive resin composition, a display substrate, and a liquid crystal panel. This resin can improve the compression displacement and elastic recovery rate of the column-like spacers between two substrates of the liquid crystal display. The modified acrylate adhesive resin disclosed by the invention is an acrylate adhesive resin modified by a terminal hydroxyl-containing polybutadiene polymer, and has the following general structural formula: in which formula Z is: wherein y1+y2+y3=1; and n is an integer of 3-30; in which formula R1 is a hydrogen atom or an alkyl group; R2 is an alkyl group or an aralkyl group; R3 is an aromatic carbon ring; x1 is an integer of 1-300; x2 is an integer of 1-300; x3 is an integer of 1-300; and x4 is an integer of 2-30. The resin of the invention can be used for producing spacers.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: May 9, 2017
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Display Technology Co., Ltd.
    Inventors: Tonghua Yang, Min Li, Sikai Zhang, He Feng, Ming Dong
  • Patent number: 9625760
    Abstract: Provided are method for manufacturing a color filter substrate, color filter substrate and display device. The method includes the following steps: providing a substrate; forming a color pixel unit on the substrate; forming a protective layer on the color pixel unit; coating an alignment film paint and a spacer paint on the protective layer in turn, and forming an alignment film and a spacer via a single patterning process or double patterning processes.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: April 18, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Jikai Zhang, Tonghua Yang, Jiyu Wan, Dan Wang, Gyuhyun Lee
  • Publication number: 20170102582
    Abstract: The present application discloses a color filter, comprising: a substrate; a black matrix layer formed on the substrate; color film layers formed on at least one first sub-pixel opening area and a plurality of second sub-pixel opening areas on the substrate; wherein the size of the first sub-pixel opening area is smaller than the size of the second sub-pixel opening area; the size of the color film layer on the first sub-pixel opening area is smaller than the size of the color film layer on the second sub-pixel opening area; a flat layer formed on the color film layer; an alignment mark formed on the flat layer and located at a designated position around the first sub-pixel opening area; a spacer layer formed on the flat layer.
    Type: Application
    Filed: November 13, 2015
    Publication date: April 13, 2017
    Inventors: Min LI, Jingjing JIANG, Yu XIAO, Xiaoguang LI, Tonghua YANG
  • Publication number: 20170097569
    Abstract: A method for manufacturing a color photoresist pattern in a color filter is provided. The method includes applying a layer of negative color resist onto a substrate; exposing the layer of negative color resist through a mask; and developing the exposed layer of negative color resist with a developer composition which comprises 0.01 to 5.0 parts by weight of inorganic or organic acids, 0.01 to 5.0 parts by weight of surfactant, 0.1 to 10.0 parts by weight of water-soluble organic solvent, 85 to 99 parts by weight of water, and 0 to 2 parts by weight of additives, based on 100 parts by weight of the developer composition.
    Type: Application
    Filed: November 22, 2016
    Publication date: April 6, 2017
    Inventors: Tonghua YANG, Hongjiang WU, Min LI, Jikai ZHANG
  • Publication number: 20160342049
    Abstract: A black matrix structure and manufacturing method thereof, an array substrate, a color filter substrate and a display apparatus are provided. The black matrix structure comprises a first black matrix and a plurality of predefined opening regions arranged in an array and surrounded by lines of the first black matrix, wherein, each of the predefined opening regions is provided with an opening therein, and at least one of the predefined opening regions is provided with a second black matrix therein, edges of shading pattern of the second black matrix are adjacent to the opening or in contact with at least one line edge of the first black matrix, and length of a part of each line edge of the first black matrix being in contact with the edge of shading pattern of the second black matrix is less than length of this line edge of the first black matrix.
    Type: Application
    Filed: June 16, 2015
    Publication date: November 24, 2016
    Inventors: Hongming ZHAN, Lifeng LIN, Xibin SHAO, Ming CHEN, Woong KIM, Zhanchang BU, Yu MA, Tonghua YANG
  • Publication number: 20160187719
    Abstract: Provided are method for manufacturing a color filter substrate, color filter substrate and display device. The method includes the following steps: providing a substrate; forming a color pixel unit on the substrate; forming a protective layer on the color pixel unit; coating an alignment film paint and a spacer paint on the protective layer in turn, and forming an alignment film and a spacer via a single patterning process or double patterning processes.
    Type: Application
    Filed: June 20, 2014
    Publication date: June 30, 2016
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: JIKAI ZHANG, TONGHUA YANG, JIYU WAN, DAN WANG, GYUHYUN LEE
  • Patent number: 9274433
    Abstract: An embodiment of the present invention provides a fly eye lens which is applied to a proximity exposure machine optical system. The fly lens includes a first lens assembly and a second lens assembly, wherein the first lens assembly includes a plurality of lenses which form a first lens face, and the second lens assembly includes a plurality of lenses which form a second lens face. The first lens face is used to split an incident broad light beam into narrow light beams and then refract the narrow light beams onto the second lens face, and the second lens face is used to dispersively refract the received narrow light beams onto a concave mirror in the optical system. A lens closer to a center of the second lens face has a higher transmittivity, and a lens farther from the center of the second lens face has a lower transmittivity.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: March 1, 2016
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Display Technology Co., Ltd.
    Inventors: Min Li, Hongjiang Wu, Gyuhyun Lee, Jikai Zhang, Tonghua Yang
  • Patent number: 9261779
    Abstract: An auto-repairing photoresist composition comprises 1 to 10 wt % of microcapsule having a capsule wall and a capsule core based on the total weight of the photoresist composition, wherein the capsule wall includes an alkali-insoluble resin, and the capsule core includes: 10 to 60 wt % of a photo-curable unsaturated resin oligomer; 10 to 50 wt % of a photo-curable monomers; 10 to 70 wt % of a first black pigment paste; 0.1 to 10 wt % of a first photo-initiator; and 0.1 to 5 wt % of a coupling agent, based on the total weight of the capsule core. The photoresist composition of embodiments of the present invention can be used for preparation of Black Matrix, and has an auto-repairing property to improve substantially the pass yield of product. A method of preparing the photoresist composition, a color filter substrate, and a display apparatus are also disclosed.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: February 16, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Tonghua Yang, Hongjiang Wu, Changgang Huang, Jianfeng Yuan
  • Patent number: 9256012
    Abstract: A color filter substrate, a manufacturing method thereof and a display device are provided. The color filter substrate includes a substrate; a black matrix dividing the substrate into a plurality of sub-pixel areas arranged in matrix; a color filter layer including color photoresist patterns with N different colors, N?3, arranged cyclically in discontinuous sub-pixel areas in adjacent N rows/columns, the color photoresist patterns in M adjacent sub-pixel areas of a single color in at least one line/column in the color filter layer extending to regions over the black matrix corresponding to regions between adjacent sub-pixel areas, to form continuous strip-like color photoresist patterns, wherein M?2; and spacers including main spacers disposed over regions between adjacent discontinuous color photoresist patterns corresponding to the black matrix and secondary spacers disposed over regions of the continuous strip-like color photoresist patterns corresponding to the black matrix.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: February 9, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Min Li, Jingjing Jiang, Tonghua Yang, Changgang Huang