Apparatus and method for reducing perceived color shift
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United States of America Patent
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Apr 9, 2013
Grant Date -
Oct 20, 2011
app pub date -
Apr 8, 2011
filing date -
Sep 27, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus and method for reducing perceived color shift as a function of viewing angle is disclosed. One embodiment is a display device that includes a color light modulator and a color filter. The filter is configured to filter wavelengths of light that would be perceived as color shifted light when reflected by the modulator at an off-axis viewing angle. Another embodiment includes a color light modulator and a color light source configured to provide light having a spectral content that lacks the wavelengths that would be perceived as color shifted light by a view of the display at an off-axis viewing angle. Another embodiment are methods of making such display devices.
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