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Patent Searching and Data

Document Type and Number:
Japanese Patent JP2006513450
Kind Code:
A method of making an embossed optical sheet material includes: providing an optically anisotropic, uniaxially oriented polymer substrate having a first major surface and a second major surface; heating a patterned tool using radiant energy from a radiant energy source, wherein the pattern comprises a plurality of parallel raised microstructures having a longitudinal direction; pressing the tool against the first major surface of the polymer substrate such that the longitudinal direction of the raised microstructures is substantially parallel to the direction of orientation of the polymer substrate, to soften the first major surface of the polymer substrate and emboss groove-shaped microchannels into the polymer substrate; cooling the embossed polymer substrate; and separating the tool from the polymer substrate; wherein the orientation of the polymer substrate is unchanged throughout the polymer substrate and first major surface.

Rishikesh, Kay. Barrad Wage
Denise, I. Kojin
David N. Edwards
Resa, Meerabi
Hugo, Y. Kornellisen
Application Number:
Publication Date:
April 20, 2006
Filing Date:
December 12, 2003
Export Citation:
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Koninklijke Philips Electronics N.V.
International Classes:
G02B5/30; B29C35/08; B29C41/46; B29C59/00; B29C59/02; B29C59/04; B29D7/01; B29D11/00; B32B3/00; B32B3/28; B32B3/30; B32B7/02; H05B6/00; B29L7/00; B29L11/00
Attorney, Agent or Firm:
Kenji Yoshitake
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki