Plate for liquid crystal display, method and polymeric compositions
AssigneeInternational Business Machines Corporation
InventorsRichard A. Day, Ramesh R. Kodnani, Konstantinos I. Papathomas
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Abstract
Plates that are especially suitable for use in liquid crystal display structures comprising a transparent substrate; a dark mesh material on the substrate having a thickness of about 1 to about 30 microns; wherein the dark mesh material comprises a photocured photoimageable organic polymeric composition and a coloring agent; and wherein the dark mesh material has an optical density of about 0.5 to about 3 in the visible light range; and a polarizing layer are provided along with methods for their fabrication.
Claims26
A plate structure comprising:
- a transparent substrate;
- a dark mesh material on the substrate having a thickness of about 1 to about 30 microns;
- wherein the dark mesh material comprises a photocured photoimageable organic polymeric composition and about 0.01 to about 6 percent by weight of a coloring agent selected from the group consisting of organic dyes, organic pigments and inorganic dyes based upon the total of the polymeric composition and coloring agent;
- and wherein the dark mesh material has an optical density of about 0.5 to about 3 in the visible light range;
- a polarizing layer;
- and wherein the photoimageable organic polymeric composition comprises an epoxy resin, cyanate ester or combinations thereof and a polyolefinically unsaturated monomer.
A method for fabricating a plate which comprises applying a photoimageable composition to a transparent substrate at a thickness of about 1 to about 30 microns wherein the photoimageable composition comprises an organic polymeric composition and about 0.01 to about 6 percent by weight of a coloring agent selected from the group consisting of organic dyes, organic pigments and inorganic dyes based upon the total of the polymeric composition and coloring agent;
- and wherein the composition has an optical density of about 0.5 to about 3 in the visible light range;
- exposing the composition to actinic radiation and developing to provide a mesh structure;
- and placing a polarizer on the structure;
- and
- wherein the photoimageable organic polymeric composition comprises an epoxy resin, cyanate ester or combinations thereof and a polyolefinically unsaturated monomer.
A method for fabricating liquid crystal display structure which comprises fabricating a plate which comprises applying a photoimageable composition to a transparent substrate at a thickness of about 1 to about 30 microns wherein the photoimageable composition comprises an organic polymeric composition and about 0.01 to about 6 percent by weight of a coloring agent selected from the group consisting of organic dyes, organic pigments and inorganic dyes based upon the total of the polymeric composition and coloring agent;
- and wherein the composition has an optical density of about 0.5 to about 3 in the visible light range;
- exposing the composition to actinic radiation and developing to provide a mesh structure;
- placing a polarizer on the structure;
- and wherein the photoimageable organic polymeric composition comprises an epoxy resin, cyanate ester or combinations thereof and a polyolefinically unsaturated monomer;
- and bonding at least one liquid crystal display tile to the plate.
Dependencies are inferred from the claim text.