Scene-adaptive RGBW conversion algorithms for RGBW LCDs

  • Baek, H.I. (LG.Philips LCD R&D Center) ;
  • Kwon, K.J. (LG.Philips LCD R&D Center) ;
  • Sohn, H.H. (LG.Philips LCD R&D Center) ;
  • Seo, C.R. (LG.Philips LCD R&D Center) ;
  • Chung, I.J. (LG.Philips LCD R&D Center)
  • Published : 2005.07.19

Abstract

LCDs with an additional white sub-pixel (RGBW LCDs) have been developed mainly to achieve higher panel transmittance. However this RGBW pixel structure causes the perceptual color difference between RGBW and RGB LCDs due to decreased primary color luminance. To solve this problem, we proposed and developed RGBW conversion algorithms that function adaptively as a displayed image changes. The test results show that the perceptual color difference could be solved to some degree by applying these new algorithms.

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