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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 17 — Aug. 13, 2012
  • pp: 19109–19118

Angularly positioned LED-based spatial-temporal color separation system

Chi-Hung Lee  »View Author Affiliations


Optics Express, Vol. 20, Issue 17, pp. 19109-19118 (2012)
http://dx.doi.org/10.1364/OE.20.019109


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Abstract

This study proposes a two-field driving scheme for field sequential color liquid crystal displays (LCDs) without color filters. The proposed scheme is based on angularly positioned color LEDs. In each field, the angular rays of two colors are collimated by a collimation lens, redirected by a light guide, and converged by a cylindrical-lens array to map into corresponding sub-pixel positions to efficiently display color images. The three main advantages of this approach are the elimination of dye color filters, high feasibility using conventional ultra-precision machining processes, and a larger color gamut.

© 2012 OSA

OCIS Codes
(120.2040) Instrumentation, measurement, and metrology : Displays
(230.3670) Optical devices : Light-emitting diodes
(080.4295) Geometric optics : Nonimaging optical systems

ToC Category:
Optical Devices

History
Original Manuscript: March 26, 2012
Revised Manuscript: May 30, 2012
Manuscript Accepted: July 2, 2012
Published: August 6, 2012

Citation
Chi-Hung Lee, "Angularly positioned LED-based spatial-temporal color separation system," Opt. Express 20, 19109-19118 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-17-19109


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