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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 2 — Jan. 18, 2010
  • pp: 645–655

Color separation system with angularly positioned light source module for pixelized backlighting

Po-Chou Chen, Hui-Hsiung Lin, Cheng-Huan Chen, Chi-Hung Lee, and Mao-Hong Lu  »View Author Affiliations

Optics Express, Vol. 18, Issue 2, pp. 645-655 (2010)

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A color-separation system that angularly positions color LEDs to produce color separation and a lens array to focus this light onto the pixels is proposed. The LED rays from different incident angles are mapped into corresponding sub-pixel positions to efficiently display color image, which can be used to replace the absorbing color filter in the conventional liquid crystal layer. In this paper, the prototype backlight has been designed, fabricated and characterized. The measurement results of this module showed that a gain factor of transmission efficiency three times more than that of conventional color filters efficiency improvement and a larger color gamut are expected.

© 2010 OSA

OCIS Codes
(120.2040) Instrumentation, measurement, and metrology : Displays
(220.0220) Optical design and fabrication : Optical design and fabrication
(110.2945) Imaging systems : Illumination design

ToC Category:
Optical Design and Fabrication

Original Manuscript: November 13, 2009
Revised Manuscript: December 18, 2009
Manuscript Accepted: December 19, 2009
Published: January 4, 2010

Po-Chou Chen, Hui-Hsiung Lin, Cheng-Huan Chen, Chi-Hung Lee, and Mao-Hong Lu, "Color separation system with angularly positioned light source module for pixelized backlighting," Opt. Express 18, 645-655 (2010)

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