×

Apparatus and method for controlling backlight and liquid crystal display

  • US 20080129680A1
  • Filed: 11/20/2007
  • Published: 06/05/2008
  • Est. Priority Date: 12/01/2006
  • Status: Active Grant
First Claim
Patent Images

1. A backlight control apparatus for controlling a backlight used in a liquid crystal display, the backlight having a lighting area that includes a plurality of blocks in each of which a backlight luminance is individually allowed to change, the apparatus comprising:

  • backlight control means that calculates the backlight luminance of each block so that the absolute value of the difference between a backlight lighting ratio and 1 is at or below a first value, and controls the backlight so as to yield the calculated backlight luminances of the respective blocks, the backlight lighting ratio being the ratio between backlight set values of neighboring blocks.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×