Patents by Inventor Jianeng Xu

Jianeng Xu 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).

  • Publication number: 20240184163
    Abstract: Provided is an optical element including a phase difference layer. The phase difference layer is a laminate of n first phase difference layers and m second phase difference layers. The n first phase difference layers each contain first anisotropic molecules with tilt angles different between a viewing surface side and a back surface side. The m second phase difference layers each contain second anisotropic molecules with tilt angles different between a viewing surface side and a back surface side. Slow axes of the n first phase difference layers are in a same orientation. Slow axes of the m second phase difference layers are in a same orientation. The slow axes of the n first phase difference layers and the slow axes of the m second phase difference layers are anti-parallel to each other and are parallel to or perpendicular to the transmission axis of the first polarizer.
    Type: Application
    Filed: October 20, 2023
    Publication date: June 6, 2024
    Inventors: Yuichi KAWAHIRA, Masahiro HASEGAWA, Ryosuke SAIGUSA, Jianeng XU, Akira SAKAI
  • Publication number: 20240184162
    Abstract: Provided is an optical element including, sequentially from a viewing surface side toward a back surface side: a first polarizer; a negative C plate; a phase difference layer; and a second polarizer. A transmission axis of the first polarizer is parallel to a transmission axis of the second polarizer. The phase difference layer contains anisotropic molecules. In the phase difference layer, a tilt angle of the anisotropic molecules on a viewing surface side in the phase difference layer and a tilt angle of the anisotropic molecules on a back surface side in the phase difference layer are the same as each other and greater than 0°. A slow axis of the phase difference layer, in a case of lying in a tilt direction of the anisotropic molecules, is parallel to or perpendicular to the transmission axis of the first polarizer.
    Type: Application
    Filed: October 17, 2023
    Publication date: June 6, 2024
    Inventors: Yuichi KAWAHIRA, Masahiro HASEGAWA, Ryosuke SAIGUSA, Jianeng XU, Akira SAKAI
  • Patent number: 11988918
    Abstract: Provided is an optical element including a phase difference layer. The phase difference layer is a laminate of n first phase difference layers and m second phase difference layers. The n first phase difference layers each contain first anisotropic molecules with tilt angles different between a viewing surface side and a back surface side. The m second phase difference layers each contain second anisotropic molecules with tilt angles different between a viewing surface side and a back surface side. Slow axes of the n first phase difference layers are in a same orientation. Slow axes of the m second phase difference layers are in a same orientation. The slow axes of the n first phase difference layers and the slow axes of the m second phase difference layers are anti-parallel to each other and are parallel to or perpendicular to the transmission axis of the first polarizer.
    Type: Grant
    Filed: October 20, 2023
    Date of Patent: May 21, 2024
    Assignee: Sharp Display Technology Corporation
    Inventors: Yuichi Kawahira, Masahiro Hasegawa, Ryosuke Saigusa, Jianeng Xu, Akira Sakai