Motorola Corporation

Lori Vaughn

Jeffrey S King

George Thomas Valliath

Kevin W Jelley

Alan G Chen

Jorge N Castilla

Osvaldo D Romero

Eugene Lopatukhin

Barry S Boes

Steven F Fradella

Dan R Blanton

Gerardo M Mari-Roca

Gregary Coonley

Front surface for a display for a radio pager

A light diffuser (100) for illuminating a display (304) comprises a rectangular light distributor (108) which is coupled to a light director (208) located along an edge normal to a major axis (110) of the light distributor (108). The light director (208) directs light received from a lamp (14) into the light distributor (108). The light distributor (108) has a polished, planar top surface (210) and a bottom surface (112) comprising a predetermined serration pattern oriented normal to the major axis (110) of the rectangular light distributor (108). The predetermined serration pattern comprises a plurality of grooves (116, 118, 120) having a predetermined pitch gradient corresponding thereto. The plurality of grooves (116, 118, 120) further have roughened surfaces for diffusing light impinging thereon toward the polished, planar top surface (210) of the light distributor (108). The light impinging on the polished, planar top surface (210) at less than a critical angle is coupled through the polished, planar top surface (210 ) to uniformly illuminate the display (304).

Light diffuser for a liquid crystal display

Growing community of inventors

Lake Worth, FL, United States of America

Lori Vaughn