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ACTIVE LIQUID CRYSTAL DISPLAY

IP.com Disclosure Number: IPCOM000022933D
Original Publication Date: 1976-May-31
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 156K

Publishing Venue

Xerox Disclosure Journal

Abstract

A nematic liquid crystalline composition having negative dielectric anisotropy and containing a fluorescent dye is coated on a photoconductor, The nematic and guest dye molecules align homogeneously on the photoconductor (major axes parallel to the photoconductor) upon application of an electrical field normal to the plane of the photoconductor. Homeotropic alignment of the nematic and guest dye occurs above regions of the photoconductor exposed to actinic radiation,

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XEROX DISCLOSURE JOURNAL

ACTIVE LIQUID CRYSTAL DISPLAY Proposed Classification
D,L, Camphausen U.S. Cl, 350/16OLC
mt. Cl, G02b 5/23

A nematic liquid crystalline composition having negative
dielectric anisotropy and containing a fluorescent dye is
coated on a photoconductor, The nematic and guest dye
molecules align homogeneously on the photoconductor (major
axes parallel to the photoconductor) upon application of an
electrical field normal to the plane of the photoconductor.
Homeotropic alignment of the nematic and guest dye occurs
above regions of the photoconductor exposed to actinic
radiation,

Stimulating light (light causing the dye to fluoresce) is
passed through the nematic, parallel to the plane of the
photoconductor, Fluorescense occurs in areas of the nematic
layer in homeotropic alignment but not in homogeneously
aligned areas,

Volume 1 Number 5 May 1976 69

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70 XEROX DISCLOSURE JOURNAL

Volume 1 Number S May 1976

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