Non Polarizer Guest–Host mode based on Dyes with Negative Dichroism

Autor:	Hoi Sing Kwok, Kwan Wah Ng, Vladimir G. Chigrinov, Elena K. Prudnikova
Rok vydání:	2003
Předmět:	Liquid-crystal display Materials science Physics and Astronomy (miscellaneous) business.industry General Engineering General Physics and Astronomy Dichroism Polarizer Dichroic glass law.invention Optics Liquid crystal law Contrast ratio Monochromatic color business Incidence (geometry)
Zdroj:	Japanese Journal of Applied Physics. 42:1297-1300
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.42.1297
Popis:	A new configuration of non polarizer "guest–host" mode, based on the liquid crystal mixture doped with black mixtures of dichroic dyes with negative dichroism, is proposed and demonstrated for the first time. Both transmissive and reflective variants are possible with either monochromatic or black/white switching. It is shown that the contrast ratio is not limited in this case. A contrast ratio of more than 5:1 for normal incidence and a contrast ratio of more than 3:1 for wide viewing angles are demonstrated in an experiment and the electrooptic response is found to be almost independent of the azimuthal angle of light incidence.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5c10e6aa59b37bee9c8aac64e4d62036 https://doi.org/10.1143/jjap.42.1297 Zobrazit plný text záznamu