FILM-BASED LIGHTGUIDE INCLUDING A WRAPPED STACK OF INPUT COUPLERS AND LIGHT EMITTING DEVICE INCLUDING THE SAME
First Claim
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1. A lightguide comprising:
- a plurality of coupling lightguides extending from a body of a film, the plurality of coupling lightguides folded and arranged in a stack in a first region of the film such that edges of the plurality of coupling lightguides define a light input surface; and
the body comprising a second region of the film configured to extract out of the lightguide light input into the light input surface that propagates through the film in a waveguide condition,wherein the stack of the plurality of coupling lightguides is wrapped along at least one side by a third region of the film.
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Abstract
A lightguide includes a plurality of coupling lightguides extending from a body of film. The plurality of coupling lightguides are folded and arranged in a stack, wherein a region of the film is wrapped around at least one side of the stack of the plurality of coupling lightguides.
91 Citations
20 Claims
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1. A lightguide comprising:
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a plurality of coupling lightguides extending from a body of a film, the plurality of coupling lightguides folded and arranged in a stack in a first region of the film such that edges of the plurality of coupling lightguides define a light input surface; and the body comprising a second region of the film configured to extract out of the lightguide light input into the light input surface that propagates through the film in a waveguide condition, wherein the stack of the plurality of coupling lightguides is wrapped along at least one side by a third region of the film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A film-based lightguide comprising:
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a film comprising a body having a light mixing region and a light emitting region; and a plurality of coupling lightguides extending from the light mixing region, the plurality of coupling lightguides folded and arranged in a stack to form a light input surface, wherein the light mixing region wraps around at least one side of the stack of the plurality of coupling lightguides. - View Dependent Claims (16, 17)
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18. A lightguide comprising:
a plurality of coupling lightguides extending from a body of film, the plurality of coupling lightguides folded and arranged in a stack, wherein a region of the film is wrapped around at least one side of the stack of the plurality of coupling lightguides. - View Dependent Claims (19, 20)
Specification