Patent · US Expired

Method for controlling operations of a backlight unit of a liquid crystal display

US7235934B2 · kind B2 · utility

12Cited by
2References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 15, 2005
Grant dateJun 26, 2007
Priority date
Expiry dateDec 22, 2025

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG09G2320/0261
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A method for controlling operations of a backlight unit of a liquid crystal display (LCD) is disclosed. The LCD includes a LCD panel and the backlight unit. The LCD panel has a plurality of display units. The backlight unit is placed behind the LCD panel and has a plurality of illumination devices for providing light to the LCD panel. The method includes: (a) keeping at least two of the illumination devices turned on at all times; (b) turning off one of the illumination devices every predetermined time interval; and (c) turning on one of the illumination devices every predetermined time interval.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.