Patents by Inventor Pai-Chen Chieh

Pai-Chen Chieh 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).

  • Lighting module for use in a keypad device
    Patent number: 7651231
    Abstract: A lighting module adapted for use in a keypad device includes a circuit substrate board, a transparent light guide plate stacked on the circuit substrate board, and at least one light emitting diode embedded in the light guide plate and connected electrically to the circuit substrate board. By having the light emitting diode embedded in the light guide plate, the overall thickness of the lighting module can be reduced to permit miniaturization.
    Type: Grant
    Filed: November 23, 2007
    Date of Patent: January 26, 2010
    Assignee: Lite-On Technology Corp.
    Inventors: Li-Kun Chou, Pai-Chen Chieh, Yung-Fu Wu, Yu-Nan Liu
  • Chip scale light emitting device
    Publication number: 20080296597
    Abstract: A light emitting device includes: a circuit board having a dielectric substrate and first and second electrodes provided on the dielectric substrate, the dielectric substrate being formed with a retaining hole; and a light emitting diode chip received in the retaining hole in the dielectric substrate and connected electrically to the first and second electrodes.
    Type: Application
    Filed: November 16, 2007
    Publication date: December 4, 2008
    Inventor: Pai-Chen Chieh
  • Lighting module for use in a keypad device
    Publication number: 20080170381
    Abstract: A lighting module adapted for use in a keypad device includes a circuit substrate board, a transparent light guide plate stacked on the circuit substrate board, and at least one light emitting diode embedded in the light guide plate and connected electrically to the circuit substrate board. By having the light emitting diode embedded in the light guide plate, the overall thickness of the lighting module can be reduced to permit miniaturization.
    Type: Application
    Filed: November 23, 2007
    Publication date: July 17, 2008
    Inventors: Li-Kun Chou, Pai-Chen Chieh, Yung-Fu Wu, Yu-Nan Liu