Patents by Inventor Yamin Wang

Yamin Wang 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: 12122888
    Abstract: The present disclosure provides a thin film material and a manufacturing method thereof. The manufacturing method of the thin film material comprises: a compound A and a first reactant reacting to form a compound B; the compound B and a second reactant reacting to form a compound C; the compound C and a third reactant reacting to form a polymer D; the polymer D reacting to obtain a mixture including a polymer F or a polymer H; and a solution including the polymer F or the polymer H forming the polymer F or the polymer H on a substrate.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: October 22, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yamin Wang
  • Patent number: 12030993
    Abstract: A polyimide and a method for manufacturing the polyimide are provided. The method for manufacturing the polyimide includes: mixing a diamine compound with a substance and an organic solvent, wherein the diamine compound includes an amide bond, and a molecular structure of the substance includes an ether dianhydride; and forming the polyimide by a cross-linking and curing process. A regular molecular chain arrangement, wherein the regular molecular chain arrangement has highly oriented in-plane crystallization and low free volume; a simple rigid planar structure; and intramolecular hydrogen bonds are introduced to prepare the polyimide that has high barrier performance, excellent heat resistance, and a low thermal expansion coefficient.
    Type: Grant
    Filed: March 29, 2020
    Date of Patent: July 9, 2024
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Yamin Wang
  • Publication number: 20240194687
    Abstract: A display panel includes a substrate, a first semiconductor layer, a first metal layer, a second metal layer, a second semiconductor layer, and a third metal layer. The third metal layer includes a third gate electrode, and the third gate electrode overlaps the second semiconductor layer. One side of the third gate electrode adjacent to the second semiconductor layer is provided with a first oxygen-absorbing metal layer, and the first oxygen-absorbing metal layer overlaps the second semiconductor layer. The present disclosure can improve a display effect of the display panel.
    Type: Application
    Filed: July 5, 2022
    Publication date: June 13, 2024
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yamin Wang
  • Patent number: 11926704
    Abstract: A polyimide substrate, a manufacturing method thereof, and a display substrate having same are disclosed. The method for manufacturing the polyimide substrate comprises steps of: providing a diamine containing a dioxazole structure; polymerizing a fluorine-containing dianhydride with the diamine containing the dioxazole structure to form a polyamic acid containing oxazole and fluorine; and cyclodehydrating the polyamic acid containing oxazole and fluorine to produce a polyimide containing oxazole and fluorine, followed by forming the polyimide substrate by film formation of the polyimide containing oxazole and fluorine. Thus, a light transmission performance of the polyimide substrate is improved.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: March 12, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yamin Wang
  • Patent number: 11773288
    Abstract: A modified polyamic acid, a preparation method thereof, and a preparation method of a composite film are provided. The modified polyamic acid includes polyamic acid and polyvinylidene fluoride. The modified polyamic acid is formed by introducing polyvinylidene fluoride having good thermal stability, high dielectric constant, excellent piezoelectric, and ferroelectric properties, so the dielectric constant and structural adjustability of the modified polyamic acid are improved.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: October 3, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Yamin Wang
  • Patent number: 11753506
    Abstract: The present disclosure provides a polyimide thin film, a preparing method thereof, and a display device. Specifically, a polyamic acid containing an ester group structure is prepared. The polyamic acid is prepared by a two-step process. A dianhydride containing an ester group structure is introduced into a polyimide to increase the content of benzene ring. Moreover, the introduction of ester groups is conducive to flexibility, which not only improves its heat resistance component, but, by introducing components with longer flexible chains, effectively destroys the regularity of macromolecules, thereby improving the flexibility of the material. Moreover, the introduction of rigid aromatic ring groups facilitates the realization of heat resistance. The ester bond is introduced into the dianhydride through the esterification, and then participates in the preparing of the polyimide material.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: September 12, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yamin Wang
  • Publication number: 20230174717
    Abstract: A polyimide and a method for manufacturing the polyimide are provided. The method for manufacturing the polyimide includes: mixing a diamine compound with a substance and an organic solvent, wherein the diamine compound includes an amide bond, and a molecular structure of the substance includes an ether dianhydride; and forming the polyimide by a cross-linking and curing process. A regular molecular chain arrangement, wherein the regular molecular chain arrangement has highly oriented in-plane crystallization and low free volume; a simple rigid planar structure; and intramolecular hydrogen bonds are introduced to prepare the polyimide that has high barrier performance, excellent heat resistance, and a low thermal expansion coefficient.
    Type: Application
    Filed: March 29, 2020
    Publication date: June 8, 2023
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Yamin WANG
  • Patent number: 11667759
    Abstract: A polyimide composite, a method of preparing thereof, and an application thereof are provided. A general structure of the polyimide composite is: SiO2-(?-CD-Ada)x/PI, and x is 3 to 5. The polyimide composite has the functions of self-repairing and anti-aging.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: June 6, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yamin Wang
  • Publication number: 20230151155
    Abstract: The present disclosure provides a polyimide thin film, a preparing method thereof, and a display device. Specifically, a polyamic acid containing an ester group structure is prepared. The polyamic acid is prepared by a two-step process. A dianhydride containing an ester group structure is introduced into a polyimide to increase the content of benzene ring. Moreover, the introduction of ester groups is conducive to flexibility, which not only improves its heat resistance component, but, by introducing components with longer flexible chains, effectively destroys the regularity of macromolecules, thereby improving the flexibility of the material. Moreover, the introduction of rigid aromatic ring groups facilitates the realization of heat resistance. The ester bond is introduced into the dianhydride through the esterification, and then participates in the preparing of the polyimide material.
    Type: Application
    Filed: March 17, 2020
    Publication date: May 18, 2023
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yamin WANG
  • Publication number: 20230144977
    Abstract: The present disclosure provides methods and apparatuses for providing form service assistance. Feature information corresponding to content in a target application may be extracted. It may be determined, based at least on the feature information, to recommend a form service for the content. A recommendation prompt of the form service may be presented. In response to receiving a confirmation to the recommendation prompt, the form service may be initiated with at least the feature information.
    Type: Application
    Filed: February 23, 2021
    Publication date: May 11, 2023
    Inventors: Si MENG, Si-Qing CHEN, Sun MAO, Tao WU, Fangrong CHEN, Siliang PI, Genglin HUANG, Anqi Du, Kun LIU, Xiaofei YANG, Yamin WANG
  • Patent number: 11629229
    Abstract: A hydrophobic polyimide material and a preparation method thereof, and an organic electroluminescence light emitting diode are provided. The hydrophobic polyimide material includes organic/inorganic composite nanoparticles. The preparation method of the hydrophobic polyimide material includes steps: mixing polyamic acid solution and organic/inorganic composite nanoparticle solution evenly, and stirring to obtain solution of the hydrophobic polyimide material; coating the solution of the hydrophobic polyimide material on a surface of a substrate to obtain hydrophobic polyimide by baking and curing.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: April 18, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yamin Wang
  • Patent number: 11556548
    Abstract: Systems and methods are provided that automatically process a message input, construct an intelligent query based on the processing of the message input, and provide at least one attachable entity according to the processing results and the intelligent query. In some example aspects, a message is received. A natural language processor to determine if the message is requesting content may then process the message. If the message is determined to be requesting content, then candidate sub-queries may be generated to serve as a training set for a query that will be sent to an external search engine to retrieve the attachable entity. The sub-queries may be ranked in order of relevance and performance score. The highest ranked sub-queries may then be used in the actual query that is fired against the external search engine. The external search engine may search local and remote repositories for the top K most relevant attachable entities and present them to a user for attachment in a reply message.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: January 17, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Amy Huyen Phuoc Nguyen, Bhaskar Mitra, Christophe Jacky Henri Van Gysel, Grzegorz Stanislaw Kukla, Lynn Carter Ayres, Mark Rolland Knight, Matteo Venanzi, Nicola Cancedda, Rachel Elizabeth Sirkin, Robin Michael Thomas, Roy Rosemarin, Shobana Balakrishnan, Sri Ramya Mallipudi, Tariq Sharif, Yamin Wang
  • Patent number: 11552249
    Abstract: A polyimide luminescent material, a preparation method, and a used thereof are disclosed; the polyimide luminescent material includes a polyimide resin and a rare earth complex distributed in the polyimide resin, wherein the polyimide resin is a condensation polymer of an aromatic diamine containing a bidentate chelate ligand and an aromatic dianhydride, and the rare earth complex and the bidentate chelate ligand are connected by a chemical bond. The luminescent material has enhanced fluorescence intensity, thermal stability, and mechanical properties. The preparation method is simple and easy, and is suitable for industrial production.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: January 10, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Yamin Wang
  • Patent number: 11537020
    Abstract: The present invention provides an electrochromic polyamic acid material, a preparation method thereof and a display device, wherein the molecular structure of the electrochromic polyamic acid material includes oligoaniline and carbazolyl triphenylamine. The oligoaniline serves as an electrochemically sensitive group, and the carbazolyl triphenylamine serves as a fluorescence emitting group. The electrochromic polyamic acid material is an electrically controlled fluorescent polymer. Fluorescence intensity of the electrochromic polyamic acid material undergoes reversible fluorescence conversion with a change of an applied voltage, due to a redox reaction of the oligoaniline at different voltages, resulting in an interchange between a benzene ring and an anthracene ring in a molecular structure, and an electron/energy transfer path with the fluorescence emitting group are generated or eliminated, thereby realizing the electrically controlled fluorescent properties of the electrochromic polyamic acid material.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: December 27, 2022
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Yamin Wang
  • Patent number: 11525038
    Abstract: A crosslinked polyimide, a polyimide film and a method for preparing thereof, an organic light emitting diode (OLED) device. 4,40-diamino-400-N-carbazolyltriphenylamine and 1,2,4,5-cyclohexanetetracarboxylic dianhydride and a p-xylylenediamine crosslinker are introduced in the present invention. The introduction of a diamine monomer with a large volume of pendant groups increases an asymmetry of the polyimide, destroys a close structure of the polymer, and reduces crystallization properties of the polypolymer, thereby effectively increasing its transmissibility. At the same time, a cross-linked agent, p-xylylenediamine, is introduced, and the cross-linked agent widens a molecular chain spacing, so that the polyimide molecule has a larger free volume. At the same time, the formation of cross-linked is beneficial to reduce a polarizability of the molecule, thereby reducing a dielectric constant of the material. An OLED device with a novel low dielectric constant and high transmittance is prepared in this way.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: December 13, 2022
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Yamin Wang
  • Publication number: 20220363830
    Abstract: The present invention provides a polyimide composite having material properties suitable for preparing a polyimide film having high transmittance, high stability, and a good mechanical property, so that it can be used as a substrate material of an organic light-emitting diode (OLED), an encapsulating film material, and so on, but are not limited thereto.
    Type: Application
    Filed: September 23, 2019
    Publication date: November 17, 2022
    Inventor: Yamin WANG
  • Patent number: 11492502
    Abstract: The present invention provides a polyimide composite having a structural formula of PI/Fe3O4-(?-CD-Ada)x, wherein x=3-5. One aspect of the invention provides a polyimide composite. By introducing Fe3O4 as a host material of an electromagnetic wave absorption material and introducing a guest material, a repairing property of the material itself is imparted by an interaction between the host material and the guest material. Therefore, the polyimide composite has an electromagnetic radiation shielding property and a self-repairing property.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: November 8, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yamin Wang
  • Patent number: 11453751
    Abstract: A polyimide (PI) substrate, including a glass substrate is provided, wherein a first PI layer is disposed over the glass substrate, and a second PI layer is disposed over the first PI layer. The first PI layer is formed with a first PI material, and the second PI layer is formed with a second PI material. Disposal of the second PI layer over the first PI layer allows for manual and complete peeling of the second PI layer from the first PI layer.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: September 27, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yamin Wang
  • Patent number: 11424413
    Abstract: The present disclosure provides an electroluminescent material, a method for manufacturing the electroluminescent material, and a luminescent device, by employing a fluorenyl group showing good planarity and strong visible ?-?* absorption as ?-based system, and simultaneously introducing a compound containing a carbazole group as an electron donor and a compound containing a pyridine group as an electron acceptor to realize an electroluminescent material, a method for manufacturing the electroluminescent material and a luminescent device with emitting a blue light and a high electroluminescence efficiency.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: August 23, 2022
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co, Ltd.
    Inventor: Yamin Wang
  • Patent number: 11407939
    Abstract: The present disclosure provides an electroluminescent material, a method for manufacturing the electroluminescent material, and a luminescent device, by employing a fluorenyl group showing good planarity and strong visible ?-?* absorption as ?-based system, and simultaneously introducing a compound containing a carbazole group as an electron donor and a compound containing aniline as an electron acceptor to realize an electroluminescent material, a method for manufacturing the electroluminescent material and a luminescent device with emitting a blue light and a high electroluminescence efficiency.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: August 9, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yamin Wang