OPTICALLY TRANSMISSIVE SUBSTRATES AND LIGHT EMITTING ASSEMBLIES AND METHODS OF MAKING SAME, AND METHODS OF DISPLAYING IMAGES USING THE OPTICALLY TRANSMISSIVE SUBSTRATES AND LIGHT EMITTING ASSEMBLIES
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United States of America Patent
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Issued Date -
Dec 5, 2013
app pub date -
May 10, 2013
filing date -
Jul 31, 2008
priority date (Note) -
Abandoned
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Abstract
Images are displayed in response to a video signal using a light emitting assembly having one or more optically transmissive substrates, films or sheets, each having at least one pattern of optical elements on or in the substrates, films or sheets. A plurality of light sources are configured to illuminate one or more output areas of one or more of the substrates, films or sheets. The light emitting assembly is configured to emit light through the pattern of optical elements and produce a predetermined luminance profile of the light emitting assembly. At least some adjacent substrates, films or sheets may have portions that overlap, and at least one pattern of optical elements on or in at least one side of the substrates, films or sheets may be configured so that discontinuities between the adjacent substrates, films or sheets are minimized.
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