Patents by Inventor Chang Yu-Xian

Chang Yu-Xian 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).

  • Method for modulating and driving backlight sources for flat panel displays
    Patent number: 7583248
    Abstract: The present invention provides a method for modulating backlight sources for flat panel displays (FPD), which comprises: lowing steps: step 31: turning on a display screen; step 32: identifying whether the total number of the BLS groups provided on the backlight module is an odd number or an even number; step 33: turning on the one BLS group located at the center-most region of the backlight module while the total number of the BLS groups is an odd number; step 34: turning on one of the two BLS groups located at the center-most region of the screen while the total number of the BLS groups is an even number; step 35: turning on another one of the two center-most BLS groups while turning off the previous turned-on center-most BLS group, and then turning on a BLS group located at the outer side of the turned-off center-most BLS group while turning off another turned-on center-most BLS group, and similarly, by iteratively progressing the turning-on and the turning-off from the center region to the two outer edge
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: September 1, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Chang Bou-Chi, Liou Chang-Ho, Chang Yu-Xian, Chung Chun-Fu
  • Method for modulating and driving backlight sources for flat panel displays
    Publication number: 20060055659
    Abstract: The present invention provides a method for modulating backlight sources for flat panel displays (FPD), which comprises: lowing steps: step 31: turning on a display screen; step 32: identifying whether the total number of the BLS groups provided on the backlight module is an odd number or an even number; step 33: turning on the one BLS group located at the center-most region of the backlight module while the total number of the BLS groups is an odd number; step 34: turning on one of the two BLS groups located at the center-most region of the screen while the total number of the BLS groups is an even number; step 35: turning on another one of the two center-most BLS groups while turning off the previous turned-on center-most BLS group, and then turning on a BLS group located at the outer side of the turned-off center-most BLS group while turning off another turned-on center-most BLS group, and similarly, by iteratively progressing the turning-on and the turning-off from the center region to the two outer edge
    Type: Application
    Filed: August 17, 2005
    Publication date: March 16, 2006
    Inventors: Chang Bou-Chi, Liou Chang-Ho, Chang Yu-Xian, Chung Chun-Fu