Light emitting device with optical enhancement structure
First Claim
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1. A light emitting device having a plurality of pixels, each pixel defined by a structure comprising:
- a light emitting element, wherein some of the light from the light emitting element is emitted in a diverging manner; and
an optical enhancement structure, having an optical characteristic that directs diverging light from the light emitting element along a path within the optical enhancement structure in a direction towards a normal of the pixel.
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Abstract
A light emitting device with optical enhancement structure. The light emitting device includes a light emitting element and an optical enhancement structure. Some of the light from the light emitting element is emitted in a diverging manner. The optical enhancement structure have an optical characteristic that directs diverging light from the light emitting element along a path within the optical enhancement structure in a direction towards a normal of the pixel. Light output efficiency is enhanced by means of the optical enhancement structure.
9 Citations
23 Claims
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1. A light emitting device having a plurality of pixels, each pixel defined by a structure comprising:
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a light emitting element, wherein some of the light from the light emitting element is emitted in a diverging manner; and
an optical enhancement structure, having an optical characteristic that directs diverging light from the light emitting element along a path within the optical enhancement structure in a direction towards a normal of the pixel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of enhancing light output from a light emitting element of a pixel in a light emitting device, comprising the steps of:
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providing an optical enhancement structure that has an optical characteristic that refracts incident light to transmit along a path within the optical enhancement structure towards a normal of the structure; and
optically coupling the optical enhancement structure to the light emitting element to direct diverging light from the light emitting element along a path within the optical enhancement structure towards a normal of the pixel.
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Specification