Patents by Inventor Charls Leu

Charls Leu 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).

  • Liquid crystal display and backlight module thereof with reflective polarizer and quarter wave plate
    Patent number: 7084937
    Abstract: A liquid crystal display (3) in accordance with one embodiment of the present invention includes a liquid crystal panel and a backlight module (36). The liquid crystal panel has a reflective polarizing element (342). The backlight module has a light source (361), a light guide plate (362), a reflector (365), and a quarter-wave plate (366). The light source is disposed adjacent to the light guide plate, and the reflector, the light guide plate and the quarter-wave plate are stacked together in order. The liquid crystal panel is located on the backlight module, and the reflective polarizing element of the liquid crystal panel faces toward the quarter-wave plate of the backlight module. The liquid crystal display 3 has a high brightness since light energy is efficiently used.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: August 1, 2006
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Tai-Cheng Yu, Charls Leu, Ga-Lane Chen
  • Liquid crystal display and backlight module thereof
    Publication number: 20040105055
    Abstract: A liquid crystal display (3) in accordance with one embodiment of the present invention includes a liquid crystal panel and a backlight module (36). The liquid crystal panel has a reflective polarizing element (342). The backlight module has a light source (361), a light guide plate (362), a reflector (365), and a quarter-wave plate (366). The light source is disposed adjacent to the light guide plate, and the reflector, the light guide plate and the quarter-wave plate are stacked together in order. The liquid crystal panel is located on the backlight module, and the reflective polarizing element of the liquid crystal panel faces toward the quarter-wave plate of the backlight module. The liquid crystal display 3 has a high brightness since light energy is efficiently used.
    Type: Application
    Filed: October 6, 2003
    Publication date: June 3, 2004
    Inventors: Tai-Cheng Yu, Charls Leu, Ga-Lane Chen