Title

Depolarization Effect In Liquid Crystal Displays

Abstract

We develop a rigorous model to simulate an LCD's contrast ratio (CR) and viewing angle by considering the depolarization effect in thin-film transistor substrate, LC layer, color filter (CF) array, etc. To mitigate the depolarization effect, we propose a new device structure by adding a thin in-cell polarizer between LC layer and CF array. Based on the analysis using our new model, the maximum CR of a multi-domain vertical alignment (MVA) LCD can reach > 20,000:1, while for the fringe-field switching (FFS) mode it can reach > 3000:1. We also discuss other approaches to further enhance the CR. Our model is a powerful tool to analyze the CR degradation mechanism and to guide the future LCD device and material optimizations.

Publication Date

5-15-2017

Publication Title

Optics Express

Volume

25

Issue

10

Number of Pages

11315-11328

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OE.25.011315

Socpus ID

85019235147 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85019235147

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