Back to results
US 4,768,300 AGranted
Illuminated information display
AssigneeStewart-Warner Corporation
InventorRenzo N. Rutili
Life of this patent
Estimating the term…
Abstract
An illuminated information display including a standard planar active display, such as an LCD display, covered by a rigid transparent plate with fixed graphics on its rear surface illuminated by light transmitted laterally through the plate.
Claims6
An illuminated display including electronically activated display elements and fixed graphic display elements, comprising:
- a first opaque plate having a plurality of selectively energizable active planar display elements;
- a rigid transparent plastic second plate closely adjacent but spaced from a front of the first plate, said second plate being sufficiently thick to transmit light laterally therethrough;
- a plurality of fixed graphic elements secured on a rear of the second plate positioned so that the graphic elements are not in line with the active display elements whereby the first opaque plate defines a background for the graphic elements when the active display elements are energized;
- said fixed graphic elements being substantially opaque and contrasting in color to the opaque first plate, said first and second plates being constructed so that different second plates can be utilized with the first plate;
- and
- a source of light directed laterally into the transparent second plate whereby light deflecting in the second plate illuminates the front of the fixed graphic elements against the contrasting opaque first plate with the active elements illuminated.
3 more elements
Dependencies are inferred from the claim text.