Patents by Inventor Hedan WANG

Hedan 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).

  • ORGANIC LIGHT-EMITTING ELEMENT AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20250261504
    Abstract: Provided are an organic light-emitting element and a display device including the same. The organic light-emitting element includes an anode, a cathode and at least two light-emitting units disposed between the anode and the cathode, where each of the at least two light-emitting units independently includes a light-emitting layer. At least one light-emitting layer includes a first light-emitting sublayer, a second light-emitting sublayer and a spacer layer disposed between the first light-emitting sublayer and the second light-emitting sublayer. A mass percentage content of a first doped material in the first light-emitting sublayer>a mass percentage content of a third doped material in the spacer layer, and a mass percentage content of a second doped material in the second light-emitting sublayer>the mass percentage content of the third doped material in the spacer layer.
    Type: Application
    Filed: April 2, 2025
    Publication date: August 14, 2025
    Applicants: Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch, Wuhan Tianma Microelectronics Co., Ltd.
    Inventors: Hedan WANG, Yupei ZHANG, Ruiming DU, Yuanyuan LIU, Yu ZHANG, Zhi HUANG