Yellow/green light diode, backlight, mobile phone and illumination indicating device

Abstract

The invention is suitable for the field of illumination, and provides a yellow / green light diode, a backlight, a mobile phone and an illumination indicating device. The yellow / green light diode comprises a substrate for die attach and wire bonding of a blue light LED (Light Emitting Diode) chip and a reflecting cup which is fixedly arranged on the substrate and enables an packaging material to the formed, wherein the packaging material is transparent slurry doped with a light yellow fluorescent material, and the packaging material covers the blue light LED chip. According to the invention, the light yellow fluorescent material is doped in the transparent slurry to obtain the packaging material, the packaging material covers the blue light LED chip, the light emitted by the blue light LED chip excites the light yellow fluorescent material to generate high-brightness yellow / green light, and the yellow / green light diode prepared from such packaging has the advantages of high reliability, simple process and low cost. The yellow / green light diode can be used as the backlights of a variety of consumption products, such as a mobile phone, a PDA (Personal Digital Assistant) and the like or used for decoration, illumination indication and the like, and has the advantages of wide application, softer color and comfort and warm feeling to people.

Description

technical field [0001] The invention belongs to the field of lighting, and in particular relates to a yellow-green light diode, a backlight source, a mobile phone and a lighting indicating device. Background technique [0002] Light Emitting Diode (LED) has the advantages of long life, low energy consumption, fast response, high reliability, environmental protection, safety, etc. With the market demand and technological progress, its applicable level is becoming more and more extensive , the required luminous colors are becoming more and more diverse, and the required brightness is also getting higher and higher. Therefore, how to improve the brightness and develop light-emitting diodes with novel colors has become an important direction for LED research and development. [0003] There are two traditional production methods. One is to obtain special colors such as yellow-green light, purple-red light, and pink light by adjusting the ratio of the constituent elements in the l...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a yellow-green light diode, which aims to solve the problems of low reliability and low luminance of the existing yellow-green light diodes

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