Patents by Inventor JIAN-LI CHENG

JIAN-LI CHENG 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).

  • KEYPAD HAVING THREE-DIMENSIONAL PATTERNS
    Publication number: 20110233040
    Abstract: A keypad having three-dimensional patterns includes a base layer, a light-guiding plate, a pattern layer, a shielding layer and a keycap layer. The light-guiding plate is overlapped on the base layer. The pattern layer is provided on the light-guiding plate. A plurality of three-dimensional patterns is provided on the front surface of the pattern layer. The shielding layer is coated on the back surface of the pattern layer, and is formed with a plurality of hollowed regions to correspond to the three-dimensional patterns. The keycap layer is overlapped on the pattern layer and formed with a plurality of keycaps to correspond to the three-dimensional patterns.
    Type: Application
    Filed: June 10, 2011
    Publication date: September 29, 2011
    Inventor: JIAN-LI CHENG