Front lighting system for liquid crystal display
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United States of America Patent
Stats
-
Dec 19, 1995
Grant Date -
N/A
app pub date -
Nov 12, 1993
filing date -
Nov 12, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
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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Cited Art Landscape
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