Light-emitting element
First Claim
Patent Images
1. A light-emitting element comprising:
- a light-emitting layer; and
at least one light-extracting portion, wherein a part of the at least one light-extracting portion is formed into a concave or convex surface for enhancing the efficiency of extracting light from said light-emitting layer.
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Accused Products
Abstract
A light-emitting element has a light-emitting layer and at lease one light-extracting portion. At least a partial part of the light-extracting portion is formed into a concave or convex surface for enhancing the efficiency of extracting light. Another light-emitting element has a light-emitting layer and a concave or convex surface for reflecting light emitted from the light-emitting layer toward one or more other surfaces of the light-emitting element through an inside of the light-emitting element.
50 Citations
29 Claims
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1. A light-emitting element comprising:
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a light-emitting layer; and
at least one light-extracting portion, wherein a part of the at least one light-extracting portion is formed into a concave or convex surface for enhancing the efficiency of extracting light from said light-emitting layer. - View Dependent Claims (3, 4)
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2. A light-emitting element comprising:
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a light-emitting layer; and
at least one light-extracting portion, wherein a part of the at least one light-extracting portion is formed into a concave or convex surface for enhancing the efficiency of extracting light, and wherein said concave or convex surface of said at least one light-extracting portion is shaped to be substantially convex, and substantially equal refractivity is kept between said light-emitting layer and said at least one light-extracting portion. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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11. A light-emitting element comprising:
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a light-emitting layer; and
at least one light-extracting portion, wherein a part of the at least one light-extracting portion is formed into a concave or convex surface for enhancing the efficiency of extracting light from said light-emitting layer, and wherein said light-extracting portion includes surfaces including a curved surface. - View Dependent Claims (12)
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13. A light-emitting element comprising:
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a light-emitting layer; and
at least one light-extracting portion, wherein a part of the at least one light-extracting portion is formed into a concave or convex surface for enhancing the efficiency of extracting light from said light-emitting layer, and wherein at least a circumference of a side surface of said light-emitting layer is wholly or partially formed into a concavo-convex side surface as said concave or convex surface having a concavo-convex shape. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A light-emitting element comprising:
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a light-emitting layer; and
a concave or convex surface for internally reflecting light-emitted from said light-emitting layer toward one or more other surfaces of said light-emitting element for enhancing the efficiency of extracting light form said light-emitting layer. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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29. A light-emitting element comprising:
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a light-emitting layer; and
at least one light-extracting portion, wherein a part of the at least one light-extracting portion comprises a concave or convex surface, and said concave or convex surface and said light-emitting layer have a substantially equal refractivity.
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Specification