Display apparatus
First Claim
Patent Images
1. A display assembly for displaying indicia, comprising:
- a transparent panel including parallel major faces spaced by panel edges;
a light source;
a light diffusing element for dispersing light from the light source into the transparent panel whereby the introduced light is internally reflected within the panel from panel/atmosphere interfaces formed at each said major face of the panel; and
indicia covering a portion of one of the major faces so as to prevent internal reflection from one of said panel/atmosphere interfaces and permitting introduced light to travel through the covered portion of said one of the major faces to illuminate the indicia.
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Abstract
An edge illuminated sign is provided with a light dispersal to guide light from a light source into an edge of the sign. The light source is an LED and the light dispersal is a triangular prism provided with a recess for enclosing the LED.
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Citations
12 Claims
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1. A display assembly for displaying indicia, comprising:
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a transparent panel including parallel major faces spaced by panel edges;
a light source;
a light diffusing element for dispersing light from the light source into the transparent panel whereby the introduced light is internally reflected within the panel from panel/atmosphere interfaces formed at each said major face of the panel; and
indicia covering a portion of one of the major faces so as to prevent internal reflection from one of said panel/atmosphere interfaces and permitting introduced light to travel through the covered portion of said one of the major faces to illuminate the indicia. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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- 11. A light diffusing element comprising a triangular prism including three rectangular faces wherein one of said three faces is light dispersive, said prism including a recess formed in one of said rectangular faces other than the light dispersive face, the recess housing an LED.
Specification