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LED structure and its manufacturing method, lighting method

A technology of LED structure and manufacturing method, which is applied in the direction of electrical components, circuits, semiconductor devices, etc., and can solve problems such as poor directivity of LEDs

Active Publication Date: 2017-09-19
HANGZHOU SILAN AZURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide an LED structure, its manufacturing method, and light emitting method, so as to solve the problem of poor directivity of existing LEDs

Method used

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  • LED structure and its manufacturing method, lighting method
  • LED structure and its manufacturing method, lighting method
  • LED structure and its manufacturing method, lighting method

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Embodiment Construction

[0073] The structure of the LED proposed by the present invention, its manufacturing method, and its lighting method will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0074] In the LED structure and its manufacturing method and light emitting method provided by the present invention, the first substrate used may only have multiple convex structures on the first surface, or may only have multiple convex structures on the second surface. The structure may also have a plurality of convex structures on both the first surface and the second surface. By having multiple convex structures on the fi...

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Abstract

The invention provides an LED structure and its manufacturing method and lighting method. Through the joint action of the reflective layer on the hemispherical support structure and the convex light concentrator array, parallel light can be emitted, so that the LED has better directivity. , can replace laser in some fields to play a better role. Furthermore, the crystal quality and luminous efficiency of the LED can be improved through the plurality of convex structures on the first substrate. In addition, the LED structure manufacturing method provided by the present invention has simple process, low cost and is suitable for large-scale commercial production.

Description

technical field [0001] The invention relates to the technical field of semiconductor optoelectronic chip manufacturing, in particular to an LED structure, a manufacturing method thereof, and a light emitting method. Background technique [0002] Since its commercialization in the early 1990s, after more than 20 years of development, GaN-based LEDs have been widely used in indoor and outdoor display screens, lighting sources for projection displays, backlight sources, landscape lighting, advertising, traffic instructions, etc. Field, and known as the most competitive new generation of solid-state light source in the 21st century. In recent years, under the encouragement and promotion of various government policies, various technologies to improve the luminous brightness of LEDs have emerged, such as patterned substrate technology, sidewall roughening technology, DBR technology, optimized electrode structure, on-substrate Or make a two-dimensional photonic crystal on a transp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/00H01L33/20H01L33/46H01L33/58
Inventor 丁海生马新刚李东昇李芳芳江忠永
Owner HANGZHOU SILAN AZURE