Luminous element with high light enucleation efficiency

A technology for light-emitting components and extraction efficiency, which is applied to electrical components, semiconductor devices, circuits, etc., can solve the problems of increasing the manufacturing complexity and cost of light-emitting diodes, and cannot effectively overcome the light absorption effect of semiconductor stacks.
CN1728410AActive Publication Date: 2006-02-01EPISTAR CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
EPISTAR CORP
Publication Date
2006-02-01

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Abstract

The luminous element includes following parts: a base plate; a semiconductor lamination of first nitride formed on the base plate; luminous layer of nitride formed on the semiconductor lamination of first nitride; a semiconductor lamination of second nitride formed on the luminous layer of nitride. There is a structure of cone-shaped cavity in form of hexagonal socket on surface of luminous layer of nitride opposite to semiconductor lamination of second nitride. Through the said structure, the enucleation efficiency of luminous element is raised.
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Description

technical field

[0001] The invention relates to a light-emitting element, in particular to a light-emitting element with high light extraction efficiency. Background technique

[0002] Light emitting diodes are widely used, for example, in optical display devices, traffic signs, data storage devices, communication devices, lighting devices, and medical devices.

[0003] In a conventional light-emitting diode, it usually includes a substrate; a first electrical semiconductor stack formed on the substrate; a light-emitting layer formed on the first electrical semiconductor stack; formed on the light-emitting layer A second electrical type semiconductor stack; a transparent conductive layer formed on the second electrical type semiconductor stack. However, since the light emitted by the light-emitting diode is emitted in all directions, it is not a single beam focused on a certain place. From the relationship of Snell's law, it can be known that the light can only be completel...

Claims

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