Patents by Inventor Dandan Tang

Dandan Tang 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: 11873294
    Abstract: Disclosed are a compound with anthrone and N-containing heterocycle and an application thereof in an OLED. The compound contains anthrone and N-containing heterocycle structure which are both strong electron-withdrawing groups. The compound has a deep HOMO energy level and high electron mobility and is suitable for use as hole blocking materials or electron transport materials; the compound can also be used as a host material for electron-type light-emitting layers; in addition, the compound of the present invention has strong group rigidity, not easily causes crystallization and aggregation between molecules, and has good film-forming property. After the compound of the present invention is applied to an OLED device as an organic electroluminescent functional layer material, the current efficiency, power efficiency and external quantum efficiency of the device are greatly improved; moreover, the compound can improve the service life of the device.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: January 16, 2024
    Assignee: JIANGSU SUNERA TECHNOLOGY CO., LTD.
    Inventors: Haifeng Chen, Chong Li, Zhaochao Zhang, Xiaoqing Zhang, Dandan Tang
  • Patent number: 11270690
    Abstract: Embodiments of the present disclosure relate to a method and apparatus for waking up a device. The method may include: collecting an audio signal in an environment the device located therein; determining, in response to that the audio signal includes a custom wake-up word being determined, a response strategy preset by a user and corresponding to the custom wake-up word; determining a target response text based on the response strategy; and generating a response speech of the target response text and playing the response speech.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: March 8, 2022
    Assignee: Baidu Online Network Technology (Beijing) Co., Ltd.
    Inventor: Dandan Tang
  • Publication number: 20210135142
    Abstract: The present invention relates to an exciplex and excimer system-based organic electroluminescent device. The host material of the light emitting layer comprises first, second and third organic compounds. A mixture or lamination formed by the first and second organics produces an exciplex under light or electrical excitation. The third organic compound is doped in the mixture or a layer of the lamination formed by the first and second organic compounds, and the third organic compound forms an excimer. The singlet energy level of the exciplex is higher than the singlet energy level of the third organic compound, and the triplet energy level thereof is higher than the triplet energy level of the third organic compound. The device of the present invention has the characteristics of high efficiency and long service time.
    Type: Application
    Filed: December 20, 2020
    Publication date: May 6, 2021
    Inventors: CHONG LI, ZHONGHUA YE, DANDAN TANG, XIAOQING ZHANG
  • Publication number: 20200388791
    Abstract: The disclosure relates to an organic electroluminescent device containing a capping layer. The organic electroluminescent device has: a substrate layer; a first electrode, the first electrode being located on the substrate; an organic light-emitting functional layer, the organic light-emitting functional layer being located on the first electrode; a second electrode, the second electrode being located on the organic light-emitting functional layer; and the capping layer, the capping layer being located on the side of the organic electroluminescent device where light is emitted, wherein the capping layer comprises an organic compound. The organic compound of the capping layer has the following properties: having a molecular weight falling within the range from 500 to 1200 and containing lone pair electrons, the number of the lone pair electrons being greater than or equal to 2.
    Type: Application
    Filed: June 21, 2020
    Publication date: December 10, 2020
    Inventors: ZHAOCHAO ZHANG, CHONG LI, DANDAN TANG, LICHUN WANG
  • Publication number: 20200354347
    Abstract: Disclosed are a compound with anthrone and N-containing heterocycle and an application thereof in an OLED. The compound contains anthrone and N-containing heterocycle structure which are both strong electron-withdrawing groups. The compound has a deep HOMO energy level and high electron mobility and is suitable for use as hole blocking materials or electron transport materials; the compound can also be used as a host material for electron-type light-emitting layers; in addition, the compound of the present invention has strong group rigidity, not easily causes crystallization and aggregation between molecules, and has good film-forming property. After the compound of the present invention is applied to an OLED device as an organic electroluminescent functional layer material, the current efficiency, power efficiency and external quantum efficiency of the device are greatly improved; moreover, the compound can improve the service life of the device.
    Type: Application
    Filed: September 25, 2018
    Publication date: November 12, 2020
    Applicant: VALIANT CO., LTD.
    Inventors: Haifeng CHEN, Chong LI, Zhaochao ZHANG, Xiaoqing ZHANG, Dandan TANG
  • Publication number: 20200294491
    Abstract: Embodiments of the present disclosure relate to a method and apparatus for waking up a device. The method may include: collecting an audio signal in an environment the device located therein; determining, in response to that the audio signal includes a custom wake-up word being determined, a response strategy preset by a user and corresponding to the custom wake-up word; determining a target response text based on the response strategy; and generating a response speech of the target response text and playing the response speech.
    Type: Application
    Filed: October 28, 2019
    Publication date: September 17, 2020
    Inventor: Dandan Tang
  • Patent number: D885678
    Type: Grant
    Filed: January 27, 2019
    Date of Patent: May 26, 2020
    Assignee: JIANGSU MEIXIN OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Weidong Jia, Dandan Tang
  • Patent number: D885679
    Type: Grant
    Filed: January 27, 2019
    Date of Patent: May 26, 2020
    Assignee: JIANGSU MEIXIN OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Weidong Jia, Dandan Tang
  • Patent number: D885680
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: May 26, 2020
    Assignee: JIANGSU MEIXIN OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Weidong Jia, Dandan Tang
  • Patent number: D885681
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: May 26, 2020
    Assignee: JIANGSU MEIXIN OPTOELECTRONICS TECHNOLOGY CO. LTD.
    Inventors: Weidong Jia, Dandan Tang
  • Patent number: D885682
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: May 26, 2020
    Assignee: JIANGSU MEIXIN OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Weidong Jia, Dandan Tang
  • Patent number: D886388
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: June 2, 2020
    Assignee: JIANGSU MEIXIN OPTOELECTRONICS TECHNOLOGY CO. LTD.
    Inventors: Weidong Jia, Dandan Tang