Abstract

Lower luminance contrast ratio and chromatic changes affect the visual performance (i.e. color shift) of a thin-film transistor liquid-crystal device (TFT-LCD) at large viewing angles. The de facto method of defining viewing angle, contrast ratio of luminance, fails to represent the substantial visual performance viewed at a larger angle. We found the degradation of color saturation, dS* /dθ, to be an appropriate metric to aid the conventional viewing angle definition (CR≥10). We empirically determined the threshold for defining the color viewing angles of TFT-LCDs, CV A = {θ||dS* /dθ| ≤0.03}, which reflects the variation not only in chromaticity but also in luminance. The proposed metric was evaluated by psychophysical experiments, whose results validate the efficacy of the proposed metric.

© 2006 IEEE

Halo effect in high-dynamic-range mini-LED backlit LCDs

En-Lin Hsiang, Qian Yang, Ziqian He, Junyu Zou, and Shin-Tson Wu
Opt. Express 28(24) 36822-36837 (2020)

Analyzing small suprathreshold differences of LCD-generated colors

Philipp Urban, Maria Fedutina, and Ingmar Lissner
J. Opt. Soc. Am. A 28(7) 1500-1512 (2011)

Color gamut volume and the maximum number of mutually discernible colors based on a Riemannian metric

Patrick Candry, Patrick De Visschere, and Kristiaan Neyts
Opt. Express 31(19) 31124-31141 (2023)

Deep learning-enabled image content-adaptive field sequential color LCDs with mini-LED backlight

Guowei Zou, Zeyu Wang, Yutong Liu, Juanli Li, Xingyun Liu, Jiahui Liu, Bo-Ru Yang, and Zong Qin
Opt. Express 30(12) 21044-21064 (2022)

Wide color gamut LCD with a quantum dot backlight

Zhenyue Luo, Yuan Chen, and Shin-Tson Wu
Opt. Express 21(22) 26269-26284 (2013)