How to make a led fluorescent tube

Abstract

The invention discloses a manufacturing method of an LED fluorescent lamp tube. The method includes the steps of (1) manufacturing of a plate-type LED light source and (2) manufacturing of the LED fluorescent lamp tube. Manufacturing of the plate-type LED light source includes the steps that a bottom plating layer is plated on a flip chip substrate, gold or silver is plated on an aluminum substrate to serve as an eutectic layer, a solder is welded on the surface of the eutectic layer in a spot mode, a flip chip is placed on the solder, the eutectic layer of the aluminum substrate is heated, and after the solder is dissolved, the flip chip is welded onto the aluminum substrate; a LENS structure is manufactured on the aluminum substrate with the flip chip, and manufacturing of the plate-type LED light source for the LED fluorescent lamp tube is completed. Manufacturing of the fluorescent lamp tube comprises the steps that a lampshade is selected, and surface roughening is conducted on the lampshade; a layer of optical anti-reflection film is manufactured on a surface roughing layer of the lampshade; the plate-type LED light source is placed under the lampshade, and after a radiator and a power supply are arranged on lower portion of the plate-type LED light source, the LED lamp tube is assembled. The LED fluorescent lamp tube is low in packaging cost, low in application cost, low in heat resistance, high in light transmittance, high in brightness, good in reliability and capable of being assembled and applied conveniently.

Description

Technical field [0001] The invention belongs to the technical field of semiconductor device packaging, and relates to a novel manufacturing method of LED fluorescent tubes. Background technique [0002] LED fluorescent tubes have become a trend of indoor lighting in the 21st century. LED fluorescent tubes have become the mainstream in the lighting field due to their high quality, durability, energy saving, and environmental protection. The LED fluorescent tube has a large projection angle adjustment range. The brightness of 15W is equivalent to that of an ordinary 40W fluorescent lamp, which saves more than 80% of power and has a life span of more than 10 times that of ordinary tubes. It is almost maintenance-free. There is no need to replace the tubes and ballast frequently. Problems with starters and starters. [0003] However, traditional LED fluorescent tubes are generally packaged with small and medium power TOP light sources, and the lampshade has low light transmittance, lo...

AI Technical Summary

Problems solved by technology

[0003] However, traditional LED fluorescent tubes generally use small and medium power TOP light source chip packaging, and the light transmittance of the lampshade is low, the light efficiency is low, the thermal resistance is large, the packaging cost and application cost are high, and the manufacturing process is cumbersome.

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