Novel superbroadband reflective polarizer

Le Li; Sadeg M. Faris

doi:10.1117/12.246218

16 August 1996 Novel superbroadband reflective polarizer

Le Li, Sadeg M. Faris

Proceedings Volume 2873, International Symposium on Polarization Analysis and Applications to Device Technology; (1996) https://doi.org/10.1117/12.246218
Event: International Symposium on Polarization Analysis and Applications to Device Technology, 1996, Yokohama, Japan

Abstract

The liquid crystal display industry relies on low cost high performance polarizers. In this paper we will describe a novel reflective polarizer, based on a special cholesteric liquid crystal (CLC) blend which results in a single layer polarizer having a super broad band approaching 2,000 nm. The novel polarizer overcomes many of the limitations of the conventional dichroic polarizers. It also improves the band width of prior art CLC polarizer invented by Phillips. While the latter relies on creating a linear pitch gradient and requires a special UV dye to obtain the broadband polarizer. Reveo's invention, in contrast, eliminates the need for special UV dye and uses a non-linear pitch distribution to create a band pass of about 2,000 nm in a film thickness of 20 microns.

Citation Download Citation

Le Li and Sadeg M. Faris "Novel superbroadband reflective polarizer", Proc. SPIE 2873, International Symposium on Polarization Analysis and Applications to Device Technology, (16 August 1996); https://doi.org/10.1117/12.246218

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