LED light lit for field-sequential-color backlight system

Ming Chin Chien*, Cho Chih Chen, Su Chin Yang, Yen Hsing Lu, Hao-Chung Kuo, Chung-Hao Tien

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


A 7-inch backlight module consisting of ten isolated micro-structured linear light pipes and two side-collimating bars was developed with serial full-color Light Emitting Diodes (LEDs) as light source for a field-sequential-color liquid-crystal display (FSC-LCD) system. The collimating lighting system not only yields a narrow angular light distribution, but also effectively diminishes the occurrence of color dependence in the scanning backlight for FSC applications. For each linear light pipes, only 3.6% of optical power leaked out to the neighboring divisions, meanwhile, the divergent angles of extraction light were controlled to ±17° and ±31° at two orthogonal directions respectively.

Original languageEnglish
Title of host publicationAD'07 - Proceedings of Asia Display 2007
Number of pages5
StatePublished - Mar 2007
EventAsia Display 2007, AD'07 - Shanghai, China
Duration: 12 Mar 200716 Mar 2007

Publication series

NameAD'07 - Proceedings of Asia Display 2007


ConferenceAsia Display 2007, AD'07


  • Collimation
  • Color dependence
  • Scanning backlight


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