Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1993-11-12
1995-12-19
Hjerpe, Richard
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
359 48, 359 75, G02F 113
Patent
active
054772397
ABSTRACT:
A system is disclosed for providing a supplemental front lighting system for a liquid crystal display. Retractable light sources are provided adjacent to the LCD. The light sources may be placed in a closed position for compactness when storing the system or when ambient lighting is adequate. The light sources may be placed in an open position when supplemental lighting of the LCD is desired. A grazing incidence reflecting film having a micro replicated surface is applied to the front surface of the LCD to increase light transmission and to collimate and direct light toward the LCD. Multifaceted microstructures arranged in longitudinal columns on the front surface of the film reduce reflection of light at glancing angles, thereby providing for improved and even lighting across the entire LCD.
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Busch John
Scheib George
Dell USA L.P.
Hjerpe Richard
Huffman James
McCombs David
Saras Steven J.
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