Light emitting panel assemblies
First Claim
1. A light emitting panel assembly comprising a light guide having a greater cross-sectional width and length than thickness and at least one input edge for receiving light from a light source, and a pattern of individual deformities of well defined shape that are projections or depressions on or in at least one side of the light guide for producing a desired light output from the light guide, the deformities being quite small in relation to the width and length of the light guide, at least some of the deformities having two or more surfaces that come together to form a ridge having a total length that is quite small in relation to the width and length of the light guide, the ridge of at least some of the deformities having ends that intersect the light guide or other deformities where the ridge ends.
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Accused Products
Abstract
Light emitting panel assemblies include a light guide having a uniform or variable pattern of individual deformities of well defined shapes that are projections or depressions on or in one or more surface areas of the light guide. The deformities are quite small in relation to the width and length of the light guide. At least some of the deformities may have two or more surfaces that come together to form a ridge having a total length that is quite small in relation to the width and length of the light guide.
214 Citations
20 Claims
- 1. A light emitting panel assembly comprising a light guide having a greater cross-sectional width and length than thickness and at least one input edge for receiving light from a light source, and a pattern of individual deformities of well defined shape that are projections or depressions on or in at least one side of the light guide for producing a desired light output from the light guide, the deformities being quite small in relation to the width and length of the light guide, at least some of the deformities having two or more surfaces that come together to form a ridge having a total length that is quite small in relation to the width and length of the light guide, the ridge of at least some of the deformities having ends that intersect the light guide or other deformities where the ridge ends.
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20. A light emitting panel assembly comprising a light guide having a greater cross-sectional width and length than thickness and at least one input edge for receiving light from a light source, and a pattern of individual deformities of well defined shape that are projections or depressions on or in at least one side of the light guide for producing a desired light output from the light guide, the deformities being quite small in relation to the width and length of the light guide, at least some of the deformities having two or more surfaces or groups of surfaces that intersect to form ridges that are quite small in relation to the width and length of the light guide for redirecting light through an associated display with low loss, the ridges of at least some of the deformities having ends that intersect the light guide or other deformities where the ridges end.
Specification