4.0 Article

Five-Primary-Color LCDs

Journal

JOURNAL OF DISPLAY TECHNOLOGY
Volume 6, Issue 1, Pages 3-7

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JDT.2009.2032247

Keywords

Liquid crystal display (LCD); LCD TVs; multi-primary; wide color gamut

Funding

  1. Chi-Mei Optoelectronics Corporation (Taiwan)

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We demonstrate a wide color gamut and high brightness LCD TV using a conventional cold cathode fluorescent lamp (CCFL) backlight with five-primary (red, green, blue, yellow, and cyan) colors. Without changing the CCFL backlight and pixel size, the color gamut is widened from similar to 72% to similar to 90% and meanwhile the white brightness is increased by more than 20%, as compared to the three-primary. We also validate our simulation results using a 32 five-primary multi-domain vertical alignment LCD TV prototype. The agreement is reasonably good.

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