Patents by Inventor Fengjuan Liu

Fengjuan 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).

  • Publication number: 20250148731
    Abstract: A device control method is provided that includes: displaying comment information on a screen of a first device, where the comment information is used to visualize an operation interface of at least a part of functions of a second device, the first device is an augmented reality device or a virtual reality device, and the second device is a physical device; determining a third device, where the third device is a device in the physical world; and transmitting at least a part of data associated with the comment information to the third device. In this way, in a multi-device collaboration scenario, the first device visualizes operation interfaces of some functions of the second device, so that a user can control these operation interfaces, and after determining the third device, the user can hop the operation interfaces of the functions of the second device to the third device.
    Type: Application
    Filed: January 10, 2025
    Publication date: May 8, 2025
    Inventors: Jintao WANG, Qing WANG, Fengjuan LIU
  • Publication number: 20250142886
    Abstract: A thin film transistor includes a substrate; and a semiconductor layer a gate, a source electrode and a drain electrode; which are arranged on the substrate. The semiconductor layer includes a first material layer and a second material layer which are stacked, wherein a material of the first material layer is selected from one of or a combination of first n-type metal oxide semiconductor materials, and a material of the second material layer is selected from one of or a combination of second n-type metal oxide semiconductor materials. A carrier mobility of a first n-type metal oxide semiconductor material is greater than or equal to 40 cm2/Vs, and a second n-type metal oxide semiconductor material is doped with Y, Y being selected from one of or a combination of rare earth elements. The first material layer is closer to the gate than the second material layer.
    Type: Application
    Filed: August 27, 2021
    Publication date: May 1, 2025
    Inventors: Guangcai Yuan, Lingyan Liang, Hongtao Cao, Fengjuan Liu, Ce Ning, Fei Wang, Hehe Hu, Hengbo Zhang
  • Patent number: 12268063
    Abstract: A displaying substrate and a displaying device. The displaying substrate comprises a flexible base plate; a first auxiliary electrode arranged on one side of the flexible base plate, the first auxiliary electrode being connected with a first power cord; a pixel unit arranged on a side of the flexible base plate away from a first metal layer, the pixel unit comprising: thin-film transistors arranged on the side of the flexible base plate away from the first metal layer, an insulation layer and a second auxiliary electrode, the second auxiliary electrode being connected with a second power cord, wherein the plurality of thin-film transistors comprise a drive transistor, the drive transistor has a source connected with the first auxiliary electrode and a drain connected with a first electrode of a light emitting device, a second electrode of the light emitting device is connected with the second auxiliary electrode.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: April 1, 2025
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Fengjuan Liu, Ke Wang, Wei Liu, Tianmin Zhou
  • Publication number: 20250098212
    Abstract: The present disclosure relates to the field of display technologies, and in particular to a thin film transistor and a method for manufacturing the same, an array substrate and a display device. An active layer of the thin film transistor includes at least two metal oxide semi-conductor layers, the at least two metal oxide semi-conductor layers include a channel layer and a first protection layer, and metals in the channel layer include at least one of indium, gallium and zinc. Praseodymium is doped into the channel layer. And, in the channel layer, a number density of praseodymium atoms in the channel layer gradually decreases with a distance from the first protection layer.
    Type: Application
    Filed: November 28, 2024
    Publication date: March 20, 2025
    Inventors: Jie HUANG, Jiayu HE, Ce NING, Zhengliang LI, Hehe HU, Fengjuan LIU, Nianqi YAO, Kun ZHAO, Tianmin ZHOU, Jiushi WANG, Zhongpeng TIAN
  • Publication number: 20250031465
    Abstract: A photoelectric sensor and a substrate are disclosed. The photoelectric sensor includes a photoelectric conversion layer, a first electrode and a second electrode, wherein the first electrode is arranged on a side of the photoelectric conversion layer, and the second electrode is arranged on a side of the photoelectric conversion layer and is spaced apart from the first electrode; wherein the first electrode and the second electrode are configured to drive the photoelectric conversion layer; and in a direction perpendicular to a surface of the photoelectric conversion layer, the first electrode and the second electrode are overlapped with the photoelectric conversion layer respectively, and the photoelectric conversion layer includes an oxide semiconductor material.
    Type: Application
    Filed: December 2, 2021
    Publication date: January 23, 2025
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pengfei GU, Je HUANG, Feifei LI, Yuhang LU, Rui HUANG, Fengjuan LIU
  • Patent number: 12183409
    Abstract: Provided is a shift register unit. The shift register unit includes an input circuit, a compensation control circuit, and an output circuit; wherein input circuit coupled to an input signal terminal, an input control terminal, a first power supply terminal, a reference node, and a first node; the compensation control circuit coupled to a first clock signal terminal, the reference node, and the first node; and the output circuit coupled to the first node, a second clock signal terminal, and an output terminal.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: December 31, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Fengjuan Liu, Ce Ning, Wei Liu, Dini Xie, Yuhang Lu
  • Patent number: 12183824
    Abstract: The present disclosure relates to the field of display technologies, and in particular to a thin film transistor and a method for manufacturing the same, an array substrate and a display device. An active layer of the thin film transistor includes at least two metal oxide semi-conductor layers, the at least two metal oxide semi-conductor layers include a channel layer and a first protection layer, and metals in the channel layer include tin, and at least one of indium, gallium and zinc. The first protection layer includes praseodymium used to absorb photo-generated electrons from at least one of the channel layer and the first protection layer which is under light irradiation and reduce a photo-generated current caused by the light irradiation.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: December 31, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jie Huang, Jiayu He, Ce Ning, Zhengliang Li, Hehe Hu, Fengjuan Liu, Nianqi Yao, Kun Zhao, Tianmin Zhou, Jiushi Wang, Zhongpeng Tian
  • Publication number: 20240423024
    Abstract: A display panel includes: a first substrate, a driving circuit layer including a plurality of thin-film transistors, a planarization layer including a first portion, a second portion, and a third portion; where a thickness of the first portion is less than that of the second portion, and a thickness of the third portion is less than that of the second portion; the first portion includes a first through hole; a light-emitting device including an anode, where the anode covers the first portion and a lateral surface adjacent to the first portion, of the second portion, and an angle between a surface at a side away from the first substrate, of a part of the anode covering the lateral surface of the second portion and a surface parallel to a plane where the first substrate is located, of the anode, is greater than 0.
    Type: Application
    Filed: September 29, 2022
    Publication date: December 19, 2024
    Inventors: Hongda SUN, Fengjuan LIU, Jianye ZHANG, Jinglu BAI
  • Publication number: 20240389414
    Abstract: A display panel includes base substrate, second conductive layer, second active layer, third gate insulating layer, third conductive layer in sequence. The second conductive layer includes first conductive part forming first gate of first transistor. The second active layer includes first active part including first and second sub-active parts and third sub-active part therebetween. The first and second sub-active parts form first and second electrodes of first transistor, and portion of the third sub-active part forms channel region of first transistor. Orthographic projection of the first conductive part on the base substrate covers that of the third sub-active part. Orthographic projection of the third gate insulating layer on the base substrate covers that of the first active part. The third conductive layer includes second conductive part forming second gate of first transistor. Orthographic projection of the second conductive part on the base substrate covers that of the channel region.
    Type: Application
    Filed: June 10, 2021
    Publication date: November 21, 2024
    Inventors: Wei YANG, Fengjuan LIU, Wei LIU, Ce NING, Guangcai YUAN
  • Publication number: 20240371887
    Abstract: A thin film transistor includes a first active layer, a second active layer, a first electrode, a second electrode and a third electrode. The first active layer includes a first surface away from a substrate. The second active layer includes a second surface in contact with the first surface. The first electrode, the first active layer and the second active layer have an overlapping region. The second electrode, the first active layer and the second active layer have an overlapping region. The third electrode, the first active layer and the second active layer have an overlapping region, and the third electrode is opposite to the second electrode. The second surface is located within the first surface, and a distance between at least part of a border of the second surface and a border of the first surface is less than or equal to 0.5 ?m.
    Type: Application
    Filed: July 16, 2024
    Publication date: November 7, 2024
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yuhang LU, Fengjuan LIU, Hehe HU, Zhengliang LI, Ce NING, Guangcai YUAN, Dandan ZHOU, Cheng XU
  • Publication number: 20240329478
    Abstract: An array substrate and a manufacturing method therefor, and a display apparatus are provided. The array substrate includes an underlay substrate, and at least one first transistor, at least one data line and at least one pixel electrode disposed on the underlay substrate. The at least one first transistor includes a first active layer and a first gate; the first gate is located on a side of the first active layer away from the underlay substrate, and orthographic projections of the first gate and the first active layer on the underlay substrate are at least partially overlapped. The first active layer is electrically connected to the data line and the pixel electrode, respectively. The data line is located on a side of the first active layer close to the underlay substrate, and the pixel electrode is located on a side of the first gate away from the underlay substrate.
    Type: Application
    Filed: April 18, 2024
    Publication date: October 3, 2024
    Inventors: Guangcai YUAN, Hehe HU, Ce NING, Hui GUO, Fengjuan LIU, Dongfang WANG, Zhengliang LI, Jiayu HE
  • Publication number: 20240282862
    Abstract: A thin film transistor including: a base substrate, and an active layer and a gate on the base substrate, where the active layer includes a first part and a second part, a conductivity of the second part is greater than a conductivity of the first part; an orthographic projection of the gate on the base substrate covers an orthographic projection of the first part on the base substrate, and the orthographic projection of the gate on the base substrate does not overlap an orthographic projection of the second part on the base substrate; and the first part includes a plurality of first sub-parts, and two sides of any one first sub-part in a trend direction of the active layer are each connected to the second part.
    Type: Application
    Filed: March 31, 2022
    Publication date: August 22, 2024
    Inventors: Fengjuan LIU, Jianye ZHANG, Yuhang LU, Hongda SUN, Pan XU
  • Publication number: 20240243206
    Abstract: A thin film transistor; includes a substrate; and a semiconductor layer provided on the substrate. The semiconductor layer includes a first surface proximate to the substrate and a second surface away from the substrate, and the semiconductor layer is made of a metal oxide semiconductor material. The semiconductor layer has a channel region; and crystals of metal oxide semiconductor are formed at least in the channel region of the semiconductor layer and proximate to the first surface or the second surface.
    Type: Application
    Filed: August 27, 2021
    Publication date: July 18, 2024
    Inventors: Guangcai Yuan, Lingyan Liang, Hongtao Cao, Fengjuan Liu, Ce Ning, Fei Wang, Hehe Hu, Xiaolong Wang
  • Publication number: 20240234532
    Abstract: The present disclosure provides a TFT, a manufacturing method and a display substrate, and it relates to the field of TFT technology. The TFT includes: a base substrate; a gate electrode arranged on the base substrate; an active layer arranged at a side of the gate electrode away from the base substrate, an orthogonal projection of the active layer onto the base substrate overlapping with an orthogonal projection of the gate electrode onto the base substrate; and a source electrode and a drain electrode arranged at a side of the active layer away from the base substrate and coupled to the active layer. A resistance between the gate electrode and the drain electrode is greater than a resistance between the gate electrode and the source electrode. According to the present disclosure, it is able to increase a withstand voltage range of the TFT.
    Type: Application
    Filed: December 27, 2021
    Publication date: July 11, 2024
    Inventors: Hehe HU, Dongfang WANG, Fengjuan LIU, Ce NING, Zhengliang LI, Jiayu HE, Yan QU, Kun ZHAO, Jie HUANG, Liping LEI, Yunsik IM, Shunhang ZHANG, Nianqi YAO, Feifei LI
  • Publication number: 20240212773
    Abstract: The present disclosure provides a shift register unit, and driving method therefor, a gate drive circuit, and a display device, belonging to the field of display technologies. The shift register unit includes an input circuit, a compensation control circuit, and an output circuit. The input circuit can control a potential of a first node under control of an input signal provided by an input signal terminal and control a potential of a reference node under control of the input signal and an input control signal provided by an input control terminal. The compensation control circuit can adjust the potential of the first node based on the potential of the reference node under control of a first clock signal provided by a first clock signal terminal. In this way, the flexibility of controlling the first node is improved. Thus, the output circuit can flexibly output a drive signal to an output terminal coupled to a gate line under control of the first node.
    Type: Application
    Filed: October 25, 2021
    Publication date: June 27, 2024
    Inventors: Fengjuan LIU, Ce NING, Wei LIU, Dini XIE, Yuhang LU
  • Publication number: 20240215332
    Abstract: The present disclosure provides a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a circuit layer disposed on a base substrate, an emitting structure layer and a photoelectric structure layer disposed on a side of the circuit layer away from the base substrate, the circuit layer includes at least one impurity absorption layer and at least one transistor, the transistor includes an active layer, and at least one insulation layer is provided between the impurity absorption layer and the active layer; an atomic ratio of a silicon element to a nitrogen element in the impurity absorption layer is 1:5 to 1:35.
    Type: Application
    Filed: November 4, 2021
    Publication date: June 27, 2024
    Inventors: Jiayu HE, Ce NING, Zhengliang LI, Hehe HU, Fengjuan LIU, Wei LIU, Tianmin ZHOU, Kun ZHAO
  • Publication number: 20240204004
    Abstract: Provided are a thin-film transistor and a manufacturing method thereof, and a display substrate, belonging to the technical field of thin-film transistors. The thin-film transistor includes: a base substrate; a gate electrode on the base substrate; an active layer on a side of the gate electrode away from the base substrate, an orthographic projection of the active layer onto the base substrate overlapping with an orthographic projection of the gate electrode onto the base substrate; and a first electrode and a second electrode on a side of the active layer away from the base substrate, the first electrode being one of a source electrode and a drain electrode, and the second electrode being the other of the source electrode and the drain electrode.
    Type: Application
    Filed: December 27, 2021
    Publication date: June 20, 2024
    Inventors: Hehe HU, Yan QU, Jiayu HE, Kun ZHAO, Jie HUANG, Zhengliang LI, Ce NING, Dongfang WANG, Fengjuan LIU, Nianqi YAO, Feifei LI, Shunhang ZHANG, Yunsik IM, Liping LEI
  • Publication number: 20240186379
    Abstract: Provided is a method for manufacturing a metal-oxide thin-film transistor (TFT). The method includes: forming, on a base substrate, an active layer including a metal oxide semiconductor, and a functional layer laminated on the active layer and containing a lanthanide element; and annealing the active layer and the functional layer, such that the lanthanide element in the functional layer is diffused into the active layer.
    Type: Application
    Filed: October 22, 2021
    Publication date: June 6, 2024
    Inventors: Hehe Hu, Fengjuan Liu, Guangcai Yuan, Jiayu He, Ce Ning, Zhengliang Li, Kun Zhao
  • Patent number: 11985844
    Abstract: A display substrate panel includes a substrate and multiple OLED elements disposed on the substrate, and further includes a thin film encapsulation layer disposed on the OLED elements and a light blocking layer disposed on the thin film encapsulation layer and located between two adjacent OLED elements. A display panel includes the above display substrate panel and a cover panel which is aligned and combined into a cell with the display substrate panel, wherein the cover panel includes a color film layer, and the color film layer has a red color film, a green color film and a blue color film which are disposed to correspond to the OLED elements.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: May 14, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Hongda Sun, Youngsuk Song, Fengjuan Liu, Zhen Song
  • Publication number: 20240128327
    Abstract: The present disclosure has disclosed a semiconductor material, light-emitting device, display panel and display device. The semiconductor material comprises: at least two of an oxide of a first element, an oxide of a second element, an oxide of a third element, an oxide of a fourth element and a compound of fifth element, and comprises at least the oxide of the first element and the compound of the fifth element; the first element comprises at least one of In, Zn, Sn, Cd, Tl and Pb; the second element comprises at least one of Ta, Ga, W, Ba, V, Hf and Nb; the third element comprises at least one of Sn, Zr, Cr and Si; the fourth element comprises at least one of Zn, Al, Sn, Ta, Hf, Zr and Ti; and the compound of the fifth element comprises MxA.
    Type: Application
    Filed: February 17, 2022
    Publication date: April 18, 2024
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Guangcai YUAN, Hehe HU, Fengjuan LIU, Ce NING, Zhengliang LI