Patents by Inventor Tianzhen LIU

Tianzhen LIU 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: 12057457
    Abstract: The present disclosure relates to the field of display technology, and discloses a display substrate, a preparation method thereof, and a display panel, used for improving the structure of the display substrate, improving characteristics of a thin film transistor, and increasing the yield of a display product. The display substrate includes: a base substrate; a thin film transistor on the base substrate; and a flattening layer on a side, away from the base substrate, of the thin film transistor, wherein the flattening layer is provided with a groove around a channel area of the thin film transistor, and an orthographic projection of the groove on the base substrate is not overlapped with an orthographic projection of the channel area on the base substrate.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: August 6, 2024
    Assignees: Hefei BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Kui Gong, Xianxue Duan, Haifeng Cui, Tianzhen Liu, Zhihai Zhang
  • Publication number: 20240014225
    Abstract: The present disclosure relates to the field of display technology, and discloses a display substrate, a preparation method thereof, and a display panel, used for improving the structure of the display substrate, improving characteristics of a thin film transistor, and increasing the yield of a display product. The display substrate includes: a base substrate; a thin film transistor on the base substrate; and a flattening layer on a side, away from the base substrate, of the thin film transistor, wherein the flattening layer is provided with a groove around a channel area of the thin film transistor, and an orthographic projection of the groove on the base substrate is not overlapped with an orthographic projection of the channel area on the base substrate.
    Type: Application
    Filed: December 29, 2020
    Publication date: January 11, 2024
    Inventors: Kui GONG, Xianxue DUAN, Haifeng CUI, Tianzhen LIU, Zhihai ZHANG
  • Patent number: 11843021
    Abstract: The present invention provides an optical detection module, a method for manufacturing the same and an optical detection substrate. The optical detection module includes: a base substrate; a switch transistor on a side of the base substrate and including a gate electrode, an active layer, a first electrode and a second electrode; a photosensitive device for sensing light, on a side of the switch transistor away from the base substrate and including a power electrode, a photosensitive layer and an output electrode stacked in sequence, the output electrode being electrically connected to the first electrode of the switch transistor; a barrier on a side of the switch transistor away from the base substrate; and an insulation portion on the same layer as the output electrode and the barrier and connected between the output electrode and the barrier.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: December 12, 2023
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kui Gong, Xianxue Duan, Zhihai Zhang, Tianzhen Liu, Haifeng Cui, Xuecheng Hou
  • Patent number: 11398536
    Abstract: The present disclosure discloses a display substrate, a production method thereof and a display device. The display substrate includes: a base substrate, a pixel defining layer located on the base substrate, and an organic functional layer located on the pixel defining layer, where the pixel defining layer has opening areas for defining light emitting areas of respective sub-pixels, and contains photo-induced deforming particles; and the organic functional layer covers the opening areas and includes a plurality of parts corresponding to the respective sub-pixels one by one, and the plurality of parts are spaced from each other.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: July 26, 2022
    Assignees: Hefei BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Kui Gong, Xianxue Duan, Tianzhen Liu, Dongsheng Jiao
  • Patent number: 11327354
    Abstract: An array substrate, a method of driving an array substrate, a method of fabricating and array substrate, and a display panel including an array substrate are provided. The array substrate includes a base substrate, a first electrode and a second electrode on the base substrate, a polymer-dispersed liquid crystal layer between the first electrode and the second electrode, and a reflective layer on a side of the polymer-dispersed liquid crystal layer opposite from the base substrate. The polymer-dispersed liquid crystal layer is configured to switch between a transparent state and an opaque state in accordance with a voltage applied between the first electrode and the second electrode.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: May 10, 2022
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kui Gong, Xianxue Duan, Tianzhen Liu, Cheng Chen
  • Publication number: 20220093675
    Abstract: The present invention provides an optical detection module, a method for manufacturing the same and an optical detection substrate. The optical detection module includes: a base substrate; a switch transistor on a side of the base substrate and including a gate electrode, an active layer, a first electrode and a second electrode; a photosensitive device for sensing light, on a side of the switch transistor away from the base substrate and including a power electrode, a photosensitive layer and an output electrode stacked in sequence, the output electrode being electrically connected to the first electrode of the switch transistor; a barrier on a side of the switch transistor away from the base substrate; and an insulation portion on the same layer as the output electrode and the barrier and connected between the output electrode and the barrier.
    Type: Application
    Filed: January 6, 2021
    Publication date: March 24, 2022
    Inventors: Kui GONG, Xianxue DUAN, Zhihai ZHANG, Tianzhen LIU, Haifeng CUI, Xuecheng HOU
  • Publication number: 20210364834
    Abstract: An array substrate, a method of driving an array substrate, a method of fabricating and array substrate, and a display panel including an array substrate are provided. The array substrate includes a base substrate (5), a first electrode (1) and a second electrode (2) on the base substrate (5), a polymer-dispersed liquid crystal layer (3) between the first electrode (1) and the second electrode (2), and a reflective layer (4) on a side of the polymer-dispersed liquid crystal layer (3) opposite from the base substrate (5). The polymer-dispersed liquid crystal layer (3) is configured to switch between a transparent state and an opaque state in accordance with a voltage applied between the first electrode (1) and the second electrode (2).
    Type: Application
    Filed: June 27, 2018
    Publication date: November 25, 2021
    Applicants: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Kui Gong, Xianxue Duan, Tianzhen Liu, Cheng Chen
  • Patent number: 11088180
    Abstract: The present disclosure provides a conductive wire structure, a manufacturing method thereof, an array substrate and a display device. The conductive wire structure includes a first conductive wire and a second conductive wire on a first plane, wherein a connection end of the first conductive wire is spaced apart from a connection end of the second conductive wire by a gap so as to discharge charges accumulated on the first conductive wire and the second conductive wire through the gap; an electrical connector connected to the connection end of the first conductive wire and the connection end of the second conductive wire, respectively, wherein a part of the electrical connector is located on a second plane different from the first plane.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: August 10, 2021
    Assignees: Hefei BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Tianzhen Liu, Xianxue Duan, Dezhi Xu
  • Publication number: 20210028255
    Abstract: The present disclosure discloses a display substrate, a production method thereof and a display device. The display substrate includes: a base substrate, a pixel defining layer located on the base substrate, and an organic functional layer located on the pixel defining layer, where the pixel defining layer has opening areas for defining light emitting areas of respective sub-pixels, and contains photo-induced deforming particles; and the organic functional layer covers the opening areas and includes a plurality of parts corresponding to the respective sub-pixels one by one, and the plurality of parts are spaced from each other.
    Type: Application
    Filed: May 22, 2020
    Publication date: January 28, 2021
    Inventors: Kui GONG, Xianxue DUAN, Tianzhen LIU, Dongsheng JIAO
  • Publication number: 20200152669
    Abstract: The present disclosure provides a conductive wire structure, a manufacturing method thereof, an array substrate and a display device. The conductive wire structure includes a first conductive wire and a second conductive wire on a first plane, wherein a connection end of the first conductive wire is spaced apart from a connection end of the second conductive wire by a gap so as to discharge charges accumulated on the first conductive wire and the second conductive wire through the gap; an electrical connector connected to the connection end of the first conductive wire and the connection end of the second conductive wire, respectively, wherein a part of the electrical connector is located on a second plane different from the first plane.
    Type: Application
    Filed: July 16, 2019
    Publication date: May 14, 2020
    Inventors: Tianzhen LIU, Xianxue DUAN, Dezhi XU
  • Patent number: 10394073
    Abstract: The present disclosure relates to a color film substrate, a method for manufacturing the color film substrate, a display device and a method for manufacturing the display device. The color film substrate comprises: a basal substrate; a color film layer arranged on a side of the basal substrate; a conductive layer arranged on another side of the basal substrate, the conductive layer comprising a plurality of conductive regions; each conductive region comprising a driving channel and an inducing channel; a first gap between the driving channel and the inducing channel in a same conductive region, a second gap between adjacent conductive regions; the first gap and the second gap correspond to a position of a black matrix in the color film layer; the black matrix being used for absorbing light, which light comes from a side of the basal substrate provided with the conductive layer, enters from the first gaps and the second gaps, and passes through the basal substrate.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: August 27, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Gaofei Shi, Yijun Wang, Jie Song, Tianzhen Liu, Qinghua Jiang
  • Patent number: 10203819
    Abstract: A touch screen, a fabrication method thereof and a display device are provided. The method comprises: forming a touch electrode on a light emission side of a display panel after the display panel is formed; and forming an organic transparent insulation layer on the light emission side of the display panel where the touch electrode has been formed. An absolute value of a difference between a refractive index of the organic transparent insulation layer and a refractive index of the touch electrode is less than or equal to a predetermined value.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: February 12, 2019
    Assignees: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Co., Ltd.
    Inventors: Tianzhen Liu, Gaofei Shi, Chengcheng Wang
  • Publication number: 20180308931
    Abstract: The present disclosure provides in some embodiments a thin film transistor, a display substrate, a display device and manufacturing methods thereof. The method for manufacturing the thin film transistor includes: forming an active layer having a first groove structure and a second groove structure, the first groove structure and the second groove structure being separated from each other; and depositing a conductive layer into the first groove structure and the second groove structure to form a first electrode and a second electrode of the thin film transistor.
    Type: Application
    Filed: November 22, 2017
    Publication date: October 25, 2018
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hefei LI, Xianxue DUAN, Chengcheng WANG, Tianzhen LIU
  • Patent number: 9887216
    Abstract: The present disclosure provides a poly-silicon TFT, its manufacturing method, an array substrate and its manufacturing method. The method for manufacturing the poly-silicon TFT includes a step of, subsequent to the formation of an amorphous-silicon active layer and a source electrode of the TFT, applying an electrical signal to the source electrode, so as to maintain the source electrode at a predetermined temperature for a predetermined time period, thereby to crystallize the amorphous active layer into a poly-silicon active layer due to heat generated by the source electrode and transferred to the amorphous active layer.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: February 6, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Tianzhen Liu, Chengcheng Wang, Xianxue Duan
  • Patent number: 9786791
    Abstract: The disclosed provides a thin film transistor, an array substrate, a display device and methods of manufacturing the thin film transistor and the array substrate. An active layer of the thin film transistor is formed of metallic oxide material, and a source electrode and a drain electrode of the thin film transistor both are formed of graphene or silver nanowire. The source electrode and the drain electrode are formed through an ink-jet printing process. Due to characteristics of graphene or silver nanowire, the manufacturing process of the thin film transistor may be simplified, the performance of the thin film transistor may be improved and the size of a channel region may be decreased. Further, an aperture ratio of the array substrate and the display device having such a thin film transistor may be increased.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: October 10, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Gaofei Shi, Tianzhen Liu, Jie Song, Yijun Wang
  • Patent number: 9722192
    Abstract: A metal complex having a structural formula as follows, wherein, the metal atom M is selected from the group consisting of iridium (Ir), platinum (Pt), osmium (Os), rhenium (Re), ruthenium (Ru) and copper (Cu); R1, R2, R3 and R4 are independently selected from the group consisting of —F, —CF3, —CH3 and substituted phenyl; in the (C^N) substructure located on a left side of the metal atom M in the structural formula (I), C is located in a first aromatic or heteroaromatic ring, and N is located in a second heteroaromatic ring. The metal complex can be used in luminescent material of display devices.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: August 1, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Chengcheng Wang, Tianzhen Liu
  • Publication number: 20170160829
    Abstract: A touch screen, a fabrication method thereof and a display device are provided. The method comprises: forming a touch electrode (2) on a light emission side of a display panel (1) after the display panel is formed; and forming an organic transparent insulation layer (5) on the light emission side of the display panel (1) where the touch electrode (2) has been formed by using a coating process. An absolute value of a difference between a refractive index of the organic transparent insulation layer (5) and a refractive index of the touch electrode (2) is less than or equal to a predetermined value. Therefore, a problem of poor shadow elimination and a problem of white stripes in the touch screen are decreased without using a shadow elimination glass, a problem that the touch screen is damaged by high-temperature is avoided, and moreover, a formation apparatus for the touch electrode is prevented from being polluted by the organic transparent insulation layer.
    Type: Application
    Filed: September 2, 2015
    Publication date: June 8, 2017
    Applicants: BOE Technology Group Co., Ltd., HEFEI BOE Optoelectronics Technology Co., Ltd.
    Inventors: Tianzhen LIU, Gaofei SHI, Chengcheng WANG
  • Publication number: 20160380215
    Abstract: A metal complex having a structural formula as follows, wherein, the metal atom M is selected from the group consisting of iridium (Ir), platinum (Pt), osmium (Os), rhenium (Re), ruthenium (Ru) and copper (Cu); R1, R2, R3 and R4 are independently selected from the group consisting of —F, —CF3, —CH3 and substituted phenyl; in the (C?N) substructure located on a left side of the metal atom M in the structural formula (I), C is located in a first aromatic or heteroaromatic ring, and N is located in a second heteroaromatic ring. The metal complex can be used in luminescent material of display devices.
    Type: Application
    Filed: July 14, 2015
    Publication date: December 29, 2016
    Applicants: BOE Technology Group Co., Ltd., HEFEI Boe Optoelectronics Technology Co., Ltd.
    Inventors: Chengcheng WANG, Tianzhen LIU
  • Publication number: 20160370650
    Abstract: The present disclosure relates to a color film substrate, a method for manufacturing the color film substrate, a display device and a method for manufacturing the display device. The color film substrate comprises: a basal substrate; a color film layer arranged on a side of the basal substrate; a conductive layer arranged on another side of the basal substrate, the conductive layer comprising a plurality of conductive regions; each conductive region comprising a driving channel and an inducing channel; a first gap between the driving channel and the inducing channel in a same conductive region, a second gap between adjacent conductive regions; the first gap and the second gap correspond to a position of a black matrix in the color film layer; the black matrix being used for absorbing light, which light comes from a side of the basal substrate provided with the conductive layer, enters from the first gaps and the second gaps, and passes through the basal substrate.
    Type: Application
    Filed: August 12, 2015
    Publication date: December 22, 2016
    Applicants: Boe Technology Group Co., Ltd., Hefei Boe Optoelectronics Technology Co., Ltd.
    Inventors: Gaofei Shi, Yijun Wang, Jie Song, Tianzhen Liu, Qinghua Jiang
  • Publication number: 20160359047
    Abstract: The disclosed provides a thin film transistor, an array substrate, a display device and methods of manufacturing the thin film transistor and the array substrate. An active layer of the thin film transistor is formed of metallic oxide material, and a source electrode and a drain electrode of the thin film transistor both are formed of graphene or silver nanowire. The source electrode and the drain electrode are formed through an ink-jet printing process. Due to characteristics of graphene or silver nanowire, the manufacturing process of the thin film transistor may be simplified, the performance of the thin film transistor may be improved and the size of a channel region may be decreased. Further, an aperture ratio of the array substrate and the display device having such a thin film transistor may be increased.
    Type: Application
    Filed: June 25, 2015
    Publication date: December 8, 2016
    Inventors: Gaofei Shi, Tianzhen Liu, Jie Song, Yijun Wang