US Patent 7132138 Liquid crystal information displays

Patent 7132138 was granted and assigned to Nitto Denko on November, 2006 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Nitto Denko

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7132138

Date of Patent

November 7, 2006

Patent Application Number

10006166

Date Filed

December 4, 2001

Patent Primary Examiner

‌

Harold Pyon

Patent abstract

The LC information display contains a layer of liquid crystal situated between the front and the rear panels with functional layers, and the liquid crystal has parameters providing interference maximum or minimum of transmission or reflection at the exit of the display and/or at the boundary of at least two functional layers and/or between the LC layer and a functional layer, for at least one linearly polarized component of light, and for at least one wavelength.