Dr. Kyungah Choi presented a work entitled, “White perception of display devices in dark and lit environments” at the Asia-Design Engineering Workshop (ADEWS 2017). This study aims to investigate the white perception of display devices presented in a real rather than a simulated environment, lit by illuminants with various chromaticities. The results of this study are expected to be the basis for the enhanced white appearance on display devices.

Abstract

Over the past several years, much attention has been paid to enhancing the color appearance of display devices. This study aims to investigate the white perception of display devices in both dark and lit environments. The white perception was modeled with bivariate Gaussian distributions. In dark environment, the maximal whiteness perception arose at 7346 K. In the lit environment, the maximal whiteness perception for the 3500 K and 6500 K lightings arose at 6375 K and 6958 K, respectively. Combined, the white regions were shifted toward a higher color temperature compared to the current standards. The study suggests that display devices that meet the current standards would probably not appear white under the viewing conditions employed in this study. Although further research is necessary, the results of this study are expected to be the basis for the enhanced white appearance on display devices.