Backlighting apparatus for uniformly illuminating a display panel
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United States of America Patent
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Aug 8, 1995
Grant Date -
N/A
app pub date -
Oct 5, 1993
filing date -
Oct 5, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A light source having a light bulb disposed within a cavity having diffusely reflecting walls and an aperture for backlighting a display is disclosed. The ratio of aperture area to cavity surface area is maximized. A diffuser and brightness enhancing film are situated at the opening of the aperture between the aperture and the display to be backlit. A color filter may also be employed to whiten the light emerging from the light source.
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Cited Art Landscape
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