The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2003
Filed:
Aug. 25, 1998
Rick L. Shie, Westlake Village, CA (US);
Jeffrey A. Laine, Redondo Beach, CA (US);
Gajendra D. Savant, Torrance, CA (US);
Physical Optics Corporation, Torrance, CA (US);
Abstract
A viewing surface in the form of a passive liquid crystal display or front projection viewing screen includes a substrate layer of material having a front side and a back side. A light shaping micro-sculpted surface structure is provided on one side of the substrate layer wherein the microstructure controls the directionality, gain, homogeneity and shape distribution of the light propagated by the screen or display. A reflective layer is deposited on the opposite back side of the substrate layer and reflects light incident upon the substrate layer back through the substrate layer toward a viewing screen surface. This type of construction can be used directly as a viewing screen or can be utilized behind a display such as a liquid crystal display in order to significantly enhance the brightness of such a display or screen. The microstructure can be integral on either the front side of the substrate layer or beneath the reflective layer on the back side of the layer.