Method for manufacturing high-power high-reflectance COB substrate and light source

Abstract

The invention provides a method for manufacturing a high-power high-reflectance COB substrate and light source. The method comprises the following steps that a transparent substrate body is provided; light sensitive films are formed in the two sides of the transparent substrate body; exposure developing is carried out on the light sensitive films on the two sides of the transparent substrate body, and the appearance frame lines of a product on the transparent substrate body are exposed out; the penetrating step is carried out on the appearance frame lines of the product on the transparent substrate body; the light sensitive films are removed; mirror face reflecting layers are formed on the bottom face and the side faces of the transparent substrate body after the light sensitive films are removed; a circuit layer is printed and sintered on the front face of the transparent substrate body after the light sensitive films are removed and a crystal solidification area is arranged on the front face of the transparent substrate body; a weld line area and an electrode are formed on the circuit layer; insulation oil is printed on the other parts, except for the crystal solidification area, the weld line area and the electrode, of the front face of the transparent substrate body. The method for manufacturing the high-power high-reflectance COB substrate and light source can greatly improve the reflecting capacity of the COB substrate or light source, light efficiency is improved, and energy conservation and environment protection are achieved.

Description

technical field [0001] The invention relates to the field of light sources, in particular to a method for manufacturing a COB substrate and a light source. Background technique [0002] Traditional COB light sources have low luminous efficiency, and the light energy of LEDs is wasted in large quantities. The existing manufacturing method is generally to form a reflective cup structure in the die-bonding area of ​​the LED chip to concentrate the light emitting angle of the LED chip, thereby improving the light efficiency, but there is still a lot of waste of light energy in this way. Contents of the invention [0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a method for manufacturing a COB substrate that can improve the light reflectance of a COB light source and reduce energy waste. [0004] In order to solve the above-mentioned technical problems, the technical solution adopte...

AI Technical Summary

Problems solved by technology

[0002] Traditionally produced COB light sources have low luminous efficiency, and the light energy of LEDs is wasted in large quantities

The existing manufacturing method is generally to form a reflective cup structure in the crystal-bonding area of ​​the LED chip to concentrate the light emitting angle of the LED chip, thereby improving the light efficiency, but there is still a lot of waste of light energy in this way

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