Liquid crystal cells – elements and systems – Nominal manufacturing methods or post manufacturing...
Reexamination Certificate
2005-05-31
2005-05-31
Parker, Kenneth (Department: 2871)
Liquid crystal cells, elements and systems
Nominal manufacturing methods or post manufacturing...
C349S152000, C349S086000, C349S092000
Reexamination Certificate
active
06900876
ABSTRACT:
The invention relates to a method of forming a display comprising the steps of (a) providing a substrate; (b) forming a plurality of first conductors over the substrate; (c) depositing a layer of cholesteric liquid-crystal material, in the form of droplets of liquid crystal in a liquid carrier, over a preselected area of each of said first conductors so that a preselected portion of each of said first conductors is uncoated; (d) drying the liquid carrier to form a layer of polymer-dispersed cholesteric-liquid-crystal domains in a continuous matrix; and (e) forming a plurality of second conductors, electrically isolated from the first conductors, over the layer of polymer-dispersed liquid-crystal domains so that an electric field between the second conductors and the uncoated portions of the first conductors is capable of changing the optical state of the polymer-dispersed cholesteric liquid-crystal material. The absence of a coating over the second conductors permits connection to the first conductors without additional processing steps. The invention is also directed to a display element made by the method and to an array of display elements that represent an intermediate in the production of the final form of the display elements.
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Mi Xiang-Dong
Stephenson Stanley W.
Eastman Kodak Company
Konkol Chris P.
Parker Kenneth
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