Packaging method for light-emitting manner of LED (Light-Emitting Diode) with specific wavelength

Abstract

The invention relates to a packaging method for a light-emitting manner of a LED (Light-Emitting Diode) with a specific wavelength; raw materials such as A glue, B glue, CP glue, characteristic fluorescent powder, an LED (Light-Emitting Diode) blue light chip with a specific wavelength and a characteristic pigment are used as raw materials; the encapsulating method comprises the following specific steps of: 1. mixing the A glue, the B glue, the CP glue, the characteristic fluorescent powder to form fluorescent glue; 2. manufacturing the fluorescent glue and the LED (Light-Emitting Diode) blue light chip with the specific wavelength into a white light LED (Light-Emitting Diode) light source base frame; 3. uniformly mixing the A glue, the B glue and the characteristic pigment to form expoxy glue; and 4. encapsulating the (Light-Emitting Diode) light source base frame by using the expoxy glue, and forming a characteristic LED (Light-Emitting Diode) with the specific wavelength after white lights pass through the expoxy glue. According to the encapsulating method, the LED (Light-Emitting Diode) with any wavelength can be manufactured by adding different color chips, the emitted light source is stable and the luminance is very high; the LED (Light-Emitting Diode) is convenient to manufacture; the manufacturing range of light colors is not limited; meanwhile, the encapsulating method is simpler and more convenient and has low cost; and the production cycle of the product is also very short.

Description

Technical field [0001] The invention relates to a packaging method of a specific wavelength LED light emitting mode, in particular to a process solution for a specific wavelength LED light emitting mode. Background technique [0002] As the global demand for lighting is energy saving, emission reduction, and environmental protection, LED devices have shown a blowout growth, and the market's color demand for LEDs has also appeared a variety of random requirements, just pick a color or pass a verbal description You need the manufacturer to produce samples. For some colors that meet the standards, the sampling is very fast and the cost is not high, but for some uncommon or non-standard requirements in the industry, the investment in R&D costs is very high, the cycle is very long, and the stability of each batch It is difficult to do, and the color rendering (the degree to which the light source presents the color of the object) produced is not good, and the brightness may not be re...

AI Technical Summary

Problems solved by technology

For some colors that meet the standards, the sample is very fast and the cost is not high, but for some uncommon or industry non-standard requirements, the investment in research and development costs is very high, the cycle is also very long, and the stability of each batch It is difficult to achieve, and the color rendering (the degree to which the light source presents the color of the object) is not good, and the brightness may not reach the level

For example, the distribution of general light wavelengths is identified as: the yellow wavelength range is 575-595nm, which means that the main wavelength is 585nm; if you need a yellow LED with a wavelength of 585nm because it has a chip with a corresponding wavelength, it is easy to manufacture, but if you need a light yellow LED with a wavelength of 578nm Color LEDs are difficult to make because there is no corresponding chip. Even if they are made, the brightness cannot meet the requirements. In this way, the production of LED devices with certain light emission requirements has encountered insurmountable problems.

[0003] Generally, there are two ways to make white light LEDs. The first way is to use red chips, green chips, and blue chips to synthesize light, which is commonly known as RGB synthetic light. The color of this light is the most pure. Currently, LED display Almost all screens are made of full-color screens in this way, but some insurmountable obstacles will be encountered when making LED devices (light-emitting diodes) in this way. The biggest obstacle is the problem of color matching. It is difficult to achieve every The color of the second light is the same

Therefore, another method is generally used to make white LED devices, which is to use blue chips + bottom phosphors. The composition of the phosphors is YAG:Ce, and its chemical composition is: (Y1-aGda)3(ALL-bGab)012:Ce3+ , Gd (Godolium), so that white LED devices that meet a certain color temperature can be produced, but the color and wavelength of the white LED produced in this way should not be too random, otherwise it will be a great challenge to the ratio of phosphor powder

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