Patents by Inventor CHIEH-CHAO HO

CHIEH-CHAO HO 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).

  • Cholesteric liquid crystal composite display device
    Patent number: 11705076
    Abstract: A cholesteric liquid crystal (LC) composite display device includes a light absorbing substrate, a first and second transparent substrates, a light supplement module arranged between the light absorbing substrate and the first transparent substrate, a control module, a first and second electrode layers respectively formed on the first and second transparent substrates, a first cholesteric LC layer sandwiched between the first and second electrode layers, and a first light absorbing layer disposed on the second transparent substrate. The projection of the first light absorbing layer on the horizontal plane and the projection of the light supplement module on the horizontal plane are arranged in a misaligned manner. The control module is provided for controlling the light supplement module according to the brightness signal. Thereby, when the external brightness is low, the light supplement module enhances the displaying brightness of the cholesteric LC composite display device to meet the usage requirements.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: July 18, 2023
    Assignee: IRIS OPTRONICS CO., LTD.
    Inventors: Chi-Chang Liao, Cheng-Hung Yao, Chieh-Chao Ho
  • CHOLESTERIC LIQUID CRYSTAL COMPOSITE DISPLAY DEVICE
    Publication number: 20220358887
    Abstract: A cholesteric liquid crystal (LC) composite display device includes a light absorbing substrate, a first and second transparent substrates, a light supplement module arranged between the light absorbing substrate and the first transparent substrate, a control module, a first and second electrode layers respectively formed on the first and second transparent substrates, a first cholesteric LC layer sandwiched between the first and second electrode layers, and a first light absorbing layer disposed on the second transparent substrate. The projection of the first light absorbing layer on the horizontal plane and the projection of the light supplement module on the horizontal plane are arranged in a misaligned manner. The control module is provided for controlling the light supplement module according to the brightness signal. Thereby, when the external brightness is low, the light supplement module enhances the displaying brightness of the cholesteric LC composite display device to meet the usage requirements.
    Type: Application
    Filed: May 5, 2022
    Publication date: November 10, 2022
    Inventors: CHI-CHANG LIAO, CHENG-HUNG YAO, CHIEH-CHAO HO