Patents by Inventor Fei Hong

Fei Hong 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: 20080080208
    Abstract: A liquid crystal display (200) includes a transparent substrate (25), a light guide plate (28) disposed under the substrate, and a light source (29) disposed above the light guide plate at a thin side of the substrate. The light guide plate includes a top surface (280). An area of the top surface corresponding to the light source defines a light incident area, and another area of the top surface corresponding to the substrate defines a light emitting area.
    Type: Application
    Filed: October 1, 2007
    Publication date: April 3, 2008
    Inventors: Fei-Hong Chen, Che-Kuei Mai
  • Publication number: 20070247563
    Abstract: An exemplary liquid crystal display includes a liquid crystal panel (10), a light guide plate (12) located below the liquid crystal panel, an illuminator (16) located adjacent a side of the light guide plate, and an electrical connector (15) attached to a side of the light guide plate and receiving the illuminator therein. The illuminator is mechanically attached to the electrical connector, and contact points of the illuminator are in direct physical and electrical connection with corresponding contact points of the electrical connector.
    Type: Application
    Filed: April 23, 2007
    Publication date: October 25, 2007
    Inventors: Che-Kuei Mai, Fei-Hong Chen
  • Publication number: 20070052880
    Abstract: An exemplary backlight module (4) includes a frame (44) and a light guide plate (40) received in the frame. The light guide plate has a top light emitting surface (404). The frame and an end (408) of the light guide plate cooperatively define a gap (46) therebetween. The gap has a narrowed exit (462) adjacent to the light emitting surface, whereby light beams are prevented from either or both of leaking out from the end of the light guide plate and leaking out from the gap via the narrowed exit.
    Type: Application
    Filed: September 5, 2006
    Publication date: March 8, 2007
    Inventors: Song Lv, Chih-Hung Chang, Fei-Hong Chen
  • Publication number: 20060055650
    Abstract: This invention provides a method and apparatus for driving bistable cholesteric liquid crystal displays. The method and apparatus provided a display in which all the pixels are initially driven to the P state. Selected pixels for the display are then driven to the FC state to provide the desired message. The state of the pixels is then maintained for a viewing period prior to any resetting of the display to the P state. The switching from the P state to the FC state allows fast addressing times and lower voltages to be used in driving the display.
    Type: Application
    Filed: November 7, 2005
    Publication date: March 16, 2006
    Inventors: Hoi-Sing Kwok, Fei-Hong Yu, Qing-Cheng Li, Wing-Chiu Yip
  • Publication number: 20050024307
    Abstract: This invention provides a method and apparatus for driving bistable cholesteric liquid crystal displays. The method and apparatus provided a display in which all the pixels are initially driven to the P state. Selected pixels for the display are then driven to the FC state to provide the desired message. The state of the pixels is then maintained for a viewing period prior to any resetting of the display to the P state. The switching from the P state to the FC state allows faster addressing times and lower voltages to be used in driving the display.
    Type: Application
    Filed: June 30, 2004
    Publication date: February 3, 2005
    Applicant: The Hong Kong University of Science & Technology
    Inventors: Hoi-Sing Kwok, Fei-Hong Yu, Qing-Cheng Li, Wing-Chiu Yip
  • Publication number: 20010015723
    Abstract: This invention provides a method and apparatus for driving bistable cholesteric liquid crystal displays. The method and apparatus provided a display in which all the pixels are initially driven to the P state. Selected pixels for the display are then driven to the FC state to provide the desired message. The state of the pixels is then maintained for a viewing period prior to any resetting of the display to the P state. The switching from the P state to the FC state allows faster addressing times and lower voltages to be used ha driving the display.
    Type: Application
    Filed: May 1, 1998
    Publication date: August 23, 2001
    Inventors: HOI-SING KWOK, FEI-HONG YU, QING-CHENG LI, WING CHIU YIP
  • Patent number: 5926245
    Abstract: The invention provides a reflective liquid crystal display which consists of just an input polarizer, the liquid crystal cell and a rear reflector which can be placed inside or outside of the liquid crystal cell. There is no rear polarizer and no retardation film compensation. The invention is capable of producing a high contrast, low chromatic dispersion display. Depending on the twist angle chosen for the liquid crystal cell, the display can be used in direct view or in a projection type display. The display can also be driven in an active matrix mode or in a passive matrix multiplexed drive mode. A full numerical simulation which takes into account the liquid crystal director deformation under the application of an electric field was used to optimize such displays.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: July 20, 1999
    Assignee: The Hong Kong University of Science & Technology
    Inventors: Hoi Sing Kwok, Fei Hong Yu