LED (Light-emitting Diode) encapsulating method

Abstract

The invention provides an LED encapsulating method. The method comprises the steps of: A1, providing an encapsulation bracket for fixing and encapsulating the LED chip on the encapsulation bracket; A2, pasting a first encapsulation adhesive layer, which covers the light outputting surface and the side face of the LED chip and is a silicon dioxide-silica gel composite layer; A3, pasting a second encapsulation adhesive layer on the surface of the first encapsulation adhesive layer, which includes an lower layer structure and an upper layer structure; and A4, pasting a third encapsulation adhesive layer on the upper layer structure of the second encapsulation adhesive layer. The lower layer structure is a fluorescent adhesive layer; the upper layer structure is a transparent silica gel layer;and the third encapsulation adhesive layer is a fluorescent adhesive layer. By adoption of the LED lamp bead prepared by the method, the whole light outputting effect and light outputting amount arebetter improved.

Description

technical field [0001] The invention relates to the lighting field, in particular to an LED packaging method. Background technique [0002] Light-emitting diodes, referred to as LEDs for short, refer to semiconductor diodes made of compounds containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N), etc., which can convert electrical energy into light energy. For the application in the field of lighting, it is necessary to package the LED chip into an LED package first, and then apply the LED package to different lamps and lanterns. The large heat generation of LED is a major problem that has not been overcome in the prior art. [0003] In the LED lamp bead, it generally includes the packaging bracket, the LED chip solidly sealed on the packaging bracket, and the fluorescent glue covering the LED chip. Because the LED chip is isolated and sealed, the heat transfer method of the LED chip is mainly heat conduction and heat transfer. Radiation, conventional LED lamp...

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Problems solved by technology

As the temperature of the fluorescent powder increases, the excitation efficiency decreases, so that the brightness of the whole lamp decreases when the heat is stable.

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