Evaluating and improving color washout of vertical aligned liquid crystal display

• Published in: Displays Vol. 35; no. 3; pp. 159 - 164
• Main Authors: Lin, Gu-Jin, Xiang, Rui-Jie, Yao, I-An, Yang, Chiu-Lien, Hsu, Jy-Shan
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.07.2014; Elsevier
• Subjects: Applied sciences; Color washout; Coupled capacity (CC-type) LCD; Display; Electronics; Exact sciences and technology; Multi-domain vertical aligned (MVA); Multi-domain vertical aligned (MVA); Coupled capacity (CC-type) LCD; Color washout; Circular polarization; Liquid crystal displays; Flat panel displays; Polarized light; Optimization
• ISSN: 0141-9382; 1872-7387
• DOI: 10.1016/j.displa.2014.05.006

•We optimized an 8-domain VA LCD by minimizing its color washout.•We adopted the index G value to analyze the degree of color washout.•The color washout is improved in all the oblique viewing direction.•In general, the quality of LCD is raised. We demonstrated an optimized 8-domain vertical aligned (VA) liquid crystal display (LCD) by minimizing its color washout. The index G is adopted to analyze the degree of color washout through simulation. By using linearly and circularly polarized incident light, the optimized regime of the area and applied voltage ratios of sub-pixels is obtained. In the experiments with the circularly polarized light, the images are sensuously improved in a coupled capacity type LCD by applying the simulated applied voltage ratio of two sub-pixels.