Light-emitting diode device

Abstract

The invention relates to a light-emitting diode device, which comprises a substrate, a support, a light-emitting diode chip and fluorescent flue, wherein an insulating layer and a conducting layer which is arranged on the insulating layer are arranged on the substrate; the support forms an inwards concave opening and is matched with the substrate to form a reflector cup; the light-emitting diode chip is arranged on the substrate and is electrically connected with the conducting layer of the substrate; and the fluorescent glue is prepared by using hot-setting transparent sealing resin such as high-transparency silica gel or epoxy resin and fluorescent powder according to certain weight percentage. Moreover, the light-emitting diode chip consists of at least one blue light chip and at least one green light chip; and the fluorescent powder is excited to emit red light. The light-emitting diode device has the advantages that the working conditions of the chips are consistent, the support structure and the external circuit design are simple, the selection range of the fluorescent powder is wide and the production is facilitated.

Description

technical field [0001] The invention relates to a light emitting diode device, in particular to a white light emitting light emitting diode device. Background technique [0002] Due to the development of light-emitting diode technology, the LED lighting industry has grown rapidly, and light-emitting diode devices that emit white light have also attracted much attention. [0003] There are three commonly used LED white light excitation methods: 1. Red, green, and blue primary color multi-chip light is mixed into white light; 2. Blue light LED excites yellow phosphor powder, and the yellow-green light emitted by the blue light mixed phosphor powder of the chip produces white light. , You can also mix a small amount of green and red phosphors to improve the photoelectric parameters such as color rendering index; 3. The near-ultraviolet LED chip excites the phosphors to emit three primary colors and mix them into white light. [0004] In the traditional technology, due to the i...

AI Technical Summary

Problems solved by technology

[0004] In the traditional technology, due to the inconsistent working conditions of the light-emitting chips, the support structure and external circuit design of multi-chip light-emitting LEDs are complicated; the main wavelength range of phosphors also limits the use of phosphors, which has caused certain limitations in production.

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