Polymer dispersion type liquid crystal element and manufacturing

Details Polymer dispersion type liquid crystal element and manufacturing Polymer dispersion type liquid crystal element and manufacturing

1998-11-09

2000-07-04

Kelly, C. H.

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

349187, 25229901, C09K 1900, C09K 1952, G02F 1133

Patent

active

060835753

ABSTRACT:
A polymer dispersion type liquid crystal element having a sufficient reflectance and having a layered structure in which a refractive index changes periodically inside, as well as a manufacturing method thereof. The polymer dispersion type liquid crystal element is manufactured by applying laser interference light to a polymerizable composition containing a polymerizable compound having a photo-dimerizable structure and low molecular liquid crystals to conduct polymer phase separation and then applying polarized light to manufacture a polymer dispersion type liquid crystal element in which low molecular liquid crystals are oriented.

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Shimada, E. et al., "S18-4 Improvement of Hysteresis in Polymer Dispersed Liquid Crystal (PDLC) by Control of Polymer Orientation," Japan Display '92, pp. 699-702, 1992.
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Nazarenko, V.G. et al., "Oriented Dispersion of Liquid Crystal Droplets in a Polymer Matrix with Light Induced Anisotropy," Mol. Mat., 1993, vol. 2, pp. 295-299.

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