초록 ▼

A backlighted display system includes a liquid crystal display, a flat light guide behind the display, and light emitting diodes (LED\s). The light guide is a molded slab of clear polycarbonate material with two planes depressed into its rear surface. Four segmented bordering surfaces are approximat

A backlighted display system includes a liquid crystal display, a flat light guide behind the display, and light emitting diodes (LED\s). The light guide is a molded slab of clear polycarbonate material with two planes depressed into its rear surface. Four segmented bordering surfaces are approximately arcuate in shape. The depressed planes, the segmented bordering surfaces, and the rear surface are coated with a reflective white paint. LED holders are integrally molded with the light guide. A central portion of the front surface is optionally textured. The display system provides thin construction with even light distribution across the width of the display, low power consumption, and good outdoor visibility at dusk or dawn.

대표청구항 ▼

A display system, comprising in combination: a liquid crystal display; a light guide positioned behind said display; said light guide including a transparent slab of substantially uniform thickness, said slab having a front surface adjacent said display, a rear surface opposing said front surface, a

A display system, comprising in combination: a liquid crystal display; a light guide positioned behind said display; said light guide including a transparent slab of substantially uniform thickness, said slab having a front surface adjacent said display, a rear surface opposing said front surface, and six bordering surfaces substantially perpendicular to said front and rear surfaces, completing the enclosure of said slab; two of said bordering surfaces being substantially mutually parallel and located at opposite ends of said slab, the remaining four of said bordering surfaces being substantially arcuate in shape; said rear surface having two planes centrally located and depressed into said rear surface, said planes being substantially rectangular with one edge of each of said planes intersecting said rear surface and the opposite edges mutually terminating at a centerline located substantially equidistant between said parallel bordering surfaces, said centerline being located between said front and rear surfaces; said arcuate bordering surfaces, said rear surface, and said depressed planes having a means for reflecting light; and a light source located adjacent to each of said parallel bordering surfaces.