Transmitted Light Enhancement of Electric-Field-Controlled Multidomain Vertically Aligned Liquid Crystal Displays Using Circular Polarizers and a Cholesteric Liquid Crystal Film
| Autor: | Yasufumi Iimura, Yoshihisa Iwamoto |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Liquid-crystal display
Materials science Physics and Astronomy (miscellaneous) business.industry Cholesteric liquid crystal General Engineering Transmitted light General Physics and Astronomy Polarizer Luminance law.invention Optics Liquid crystal law Electric field Transmittance Optoelectronics business |
| Zdroj: | Japanese Journal of Applied Physics. 42:L51-L53 |
| ISSN: | 1347-4065 0021-4922 |
| DOI: | 10.1143/jjap.42.l51 |
| Popis: | We have proposed two new optical configurations to improve the light transmittance of a fringing-field-controlled multidomain vertically aligned liquid crystal display (FEF-MVA-LCD). We show that, by using a MVA-LC panel sandwiched between two circular polarizers, improvement of the maximum transmittance by more than 30% is achieved in comparison to the transmittance of a conventional panel configuration using two linear polarizers. We also demonstrate that further improvement of the light efficiency was achieved by combining a cholesteric liquid crystal film with a circular polarizer. This method using cholesteric liquid crystal and circular polarizer films may be the most effective for the improvement of the luminance of a FEF-controlled MVA-LCD panel. |
| Databáze: | OpenAIRE |
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