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).

  • Patent number: 9379146
    Abstract: A method for manufacturing an array substrate and a method for forming a through hole are provided. The method for manufacturing the array substrate comprise: coating photoresist in an insulating layer through-hole region on a substrate; depositing an insulating layer on the substrate provided with the photoresist in the insulating layer through-hole region; and stripping off the photoresist in the insulating layer through-hole region to form an insulating layer through hole. The manufacturing method simplifies the process of forming the insulating layer through hole.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: June 28, 2016
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Li Zhang, Liangchen Yan, Fengjuan Liu
  • Patent number: 9368637
    Abstract: A thin film transistor (TFT) and manufacturing method thereof, an array substrate and a display device are provided. The thin film transistor comprises a substrate; an active layer formed on the substrate; a first conductive contact layer and a second conductive contact layer formed on the active layer; an etch-stop layer formed over the first contact layer and the second contact layer; and a source connected with the first contact layer, a drain connected with the second contact layer and a gate arranged between the source and the drain formed over the etch-stop layer. The TFT has a simple structure and better performance.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: June 14, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Li Zhang, Chunsheng Jiang, Dongfang Wang, Haijing Chen, Fengjuan Liu
  • Publication number: 20160086981
    Abstract: Fabrication methods of a transparent conductive electrode (301) and an array substrate are provided. The fabrication method of the transparent conductive electrode (301) comprises: forming a sacrificial layer pattern (201) on a substrate (10) having a first region (A1) and a second region (A2) adjacent to each other, wherein the sacrificial layer pattern (201) is located in the second region (A2), and has an upper sharp corner profile formed on a side adjacent to the first region (A1); forming a transparent conductive thin-film (30) in the first region (A1) and the second region (A2) of the substrate (10) with the sacrificial layer pattern (201) formed thereon, wherein a thickness ratio of the transparent conductive thin-film (30) to the sacrificial layer pattern (201) is less than or equal to 1:1.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 24, 2016
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Meili WANG, Fengjuan LIU, Chunsheng JIANG
  • Publication number: 20160011158
    Abstract: Embodiments of the present invention provide a gas detection sensor, a display panel, and a display device. The gas detection sensor comprises: a gas sensitive part; two detection electrodes electrically connected with each other through the gas sensitive part; and a protective layer enclosing the gas sensitive part and the detection electrodes. When one of the detection electrodes is applied with a detecting signal, the detecting signal is output from the other detection electrode after being modulated by the gas sensitive part, and a voltage signal output by the other detection electrode is related to a nature of the outside air to which the gas sensitive part is exposed, thereby a detection on air quality may be achieved through detecting the voltage signal output from the other detection electrode, such that a simply structured and portable gas detection sensor can be realized.
    Type: Application
    Filed: December 18, 2014
    Publication date: January 14, 2016
    Inventors: Xiaodi Liu, Cuili Gai, Fengjuan Liu, Gang Wang
  • Publication number: 20160013220
    Abstract: A method for manufacturing an array substrate and a method for forming a through hole are provided. The method for manufacturing the array substrate comprise: coating photoresist in an insulating layer through-hole region on a substrate; depositing an insulating layer on the substrate provided with the photoresist in the insulating layer through-hole region; and stripping off the photoresist in the insulating layer through-hole region to form an insulating layer through hole. The manufacturing method simplifies the process of forming the insulating layer through hole.
    Type: Application
    Filed: July 18, 2014
    Publication date: January 14, 2016
    Inventors: Li ZHANG, Liangchen YAN, Fengjuan LIU
  • Publication number: 20150349140
    Abstract: Embodiments of the present invention provide a thin film transistor, method for fabricating the thin film transistor and display apparatus. The method includes steps of: forming an active layer pattern which has a mobility greater than a predetermined threshold from an active layer material; and performing ion implantation on the active layer pattern. The energy of a compound bond formed from the implanted ions is greater than that of a compound bond formed from ions in the active layer material, thereby reducing the chance of vacancy formation and reducing the carrier concentration. Therefore, the mobility of the active layer surface is reduced, the leakage current is reduced, the threshold voltage is adjusted to shift toward positive direction and performance of the thin film transistor is improved.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 3, 2015
    Inventors: Meili WANG, Chunsheng JIANG, Dongfang WANG, Fengjuan LIU
  • Publication number: 20150311223
    Abstract: A thin film transistor array substrate and a manufacturing method thereof, and a display device comprising the thin film transistor array substrate, including a gate electrode (4) within a gate electrode recess of a first insulating layer (2), so that the gate electrode (4) is surrounded by the first insulating layer (2), the patterned gate electrode (4) has no slope, and the first insulating layer (2) isolates the gate electrode (4) from the outside, which can prevent fracture of the gate insulating layer (5), and further effectively block copper diffusion in the thin film transistor array substrate. Further, the metal blocking layer completely covers an upper surface and/or a lower surface of the composite copper metal or the composite thin film layer including copper metal, which can play a good role in blocking copper diffusion; meanwhile, above all, it is not necessary to etch copper, which reduces cost and improves yield.
    Type: Application
    Filed: May 27, 2014
    Publication date: October 29, 2015
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fengjuan LIU, Meili WANG, Li ZHANG, Liangchen YAN
  • Publication number: 20150214373
    Abstract: A thin film transistor (TFT) and manufacturing method thereof, an array substrate and a display device are provided. The thin film transistor comprises a substrate; an active layer formed on the substrate; a first conductive contact layer and a second conductive contact layer formed on the active layer; an etch-stop layer formed over the first contact layer and the second contact layer; and a source connected with the first contact layer, a drain connected with the second contact layer and a gate arranged between the source and the drain formed over the etch-stop layer. The TFT has a simple structure and better performance.
    Type: Application
    Filed: July 15, 2013
    Publication date: July 30, 2015
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Li Zhang, Chunsheng Jiang, Dongfang Wang, Haijing Chen, Fengjuan Liu