Patents by Inventor Zhengchuan ZHANG

Zhengchuan ZHANG 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: 11812645
    Abstract: A display panel and a display device are provided. The display panel includes a substrate; a driving circuit layer, disposed on the substrate and including a reset signal line and a first power signal line; a light-emitting element layer, including organic light-emitting elements, wherein each organic light-emitting element includes a first electrode, a light-emitting layer, and a second electrode, and the light-emitting layer includes a first common layer, a light-emitting material layer and a second common layer; and a compensation capacitor, disposed between at least two adjacent organic light-emitting elements and including a first plate and a second plate insulated from each other, wherein the first plate is disposed on a side of the first common layer facing the substrate and in contact with the first common layer and electrically connected with the reset signal line, and the second plate is electrically connected with the first power signal line.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: November 7, 2023
    Assignee: XIAMEN TIANMA MICRO ELECTRONICS CO., LTD.
    Inventors: Zhengchuan Zhang, Huangyao Wu, Hao Dai, Hai Liu
  • Publication number: 20220344436
    Abstract: A display panel and a display device are provided. The display panel includes a substrate; a driving circuit layer, disposed on the substrate and including a reset signal line and a first power signal line; a light-emitting element layer, including organic light-emitting elements, wherein each organic light-emitting element includes a first electrode, a light-emitting layer, and a second electrode, and the light-emitting layer includes a first common layer, a light-emitting material layer and a second common layer; and a compensation capacitor, disposed between at least two adjacent organic light-emitting elements and including a first plate and a second plate insulated from each other, wherein the first plate is disposed on a side of the first common layer facing the substrate and in contact with the first common layer and electrically connected with the reset signal line, and the second plate is electrically connected with the first power signal line.
    Type: Application
    Filed: August 12, 2021
    Publication date: October 27, 2022
    Inventors: Zhengchuan ZHANG, Huangyao WU, Hao DAI, Hai LIU
  • Patent number: 11411186
    Abstract: A boron heterocyclic compound has a structure represented by Formula (I): in which L represents a single bond, a substituted or unsubstituted phenyl, a substituted or unsubstituted naphthyl, a substituted or unsubstituted anthryl, and D is mainly selected from carbazolyl and derivative groups thereof, acridinyl and derivative groups thereof, or diarylamino and derivative groups thereof. In the boron heterocyclic compound, an acceptor unit is bonded through a boron heterocyclic SP3 linking moiety, which shortens the conjugation length, increases the energy level, and also further improves the thermodynamic stability of the molecule. In addition, the short conjugate axis reduces intramolecular charge transfer and narrows luminescence spectrum to some extent. The compound can be used as a TADF material. Since the light-emitting layer of the light-emitting device does not contain noble metals, the cost thereof can be greatly reduced.
    Type: Grant
    Filed: September 29, 2019
    Date of Patent: August 9, 2022
    Assignee: WuHan TianMa Micro-Electronics Co., Ltd.
    Inventors: Longxin Pan, Zhengchuan Zhang, Fang Yuan, Kun Wang, Peng Wang
  • Patent number: 10759802
    Abstract: The present disclosure relates to the field of technology of an OLED material and a device having the same, and particularly to a compound, a preparation method thereof and an organic light emitting display device, wherein the compound has a structure expressed by formula (I).
    Type: Grant
    Filed: November 5, 2017
    Date of Patent: September 1, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Zhengchuan Zhang, Hao Dai, Defeng Bi
  • Publication number: 20200028086
    Abstract: A boron heterocyclic compound has a structure represented by Formula (I): in which L represents a single bond, a substituted or unsubstituted phenyl, a substituted or unsubstituted naphthyl, a substituted or unsubstituted anthryl, and D is mainly selected from carbazolyl and derivative groups thereof, acridinyl and derivative groups thereof, or diarylamino and derivative groups thereof. In the boron heterocyclic compound, an acceptor unit is bonded through a boron heterocyclic SP3 linking moiety, which shortens the conjugation length, increases the energy level, and also further improves the thermodynamic stability of the molecule. In addition, the short conjugate axis reduces intramolecular charge transfer and narrows luminescence spectrum to some extent. The compound can be used as a TADF material. Since the light-emitting layer of the light-emitting device does not contain noble metals, the cost thereof can be greatly reduced.
    Type: Application
    Filed: September 29, 2019
    Publication date: January 23, 2020
    Applicant: WuHan TianMa Micro-Electronics Co., Ltd.
    Inventors: Longxin Pan, Zhengchuan Zhang, Fang Yuan, Kun Wang, Peng Wang
  • Patent number: 9991448
    Abstract: The present invention discloses a compound represented by the following Formula I, and a luminescent material and an organic light emitting device using the same. Said compound has a characteristic of thermally activated delayed fluorescence, and can be used in luminescent materials and in organic light emitting devices.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: June 5, 2018
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Zhengchuan Zhang, Hao Dai, Defeng Bi
  • Publication number: 20180099968
    Abstract: The present disclosure relates to the field of technology of an OLED material and a device having the same, and particularly to a compound, a preparation method thereof and an organic light emitting display device, wherein the compound has a structure expressed by formula (I).
    Type: Application
    Filed: November 5, 2017
    Publication date: April 12, 2018
    Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Zhengchuan ZHANG, Hao Dai, Defeng Bi
  • Publication number: 20170288150
    Abstract: The present invention discloses a compound represented by the following Formula I, and a luminescent material and an organic light emitting device using the same. Said compound has a characteristic of thermally activated delayed fluorescence, and can be used in luminescent materials and in organic light emitting devices.
    Type: Application
    Filed: July 7, 2016
    Publication date: October 5, 2017
    Inventors: Zhengchuan ZHANG, Hao DAI, Defeng BI