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High color rendering light emitting diode and manufacture method thereof

一种发光二极管、高显色的技术,应用在半导体器件、电气元件、电路等方向,能够解决普通白光缺乏深红的光谱、光谱宽度小、不连续等问题,达到改善测试指标低、发光颜色均匀、使用效果好的效果

Inactive Publication Date: 2012-07-11
MLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The color rendering index of the light source is greater than 85, which is considered to be suitable for lighting in all places. However, traditional white LEDs are generally made of blue LED chips and yellow phosphors. The white light emitted only has blue and yellow spectra. The width is small and it is a discontinuous spectrum, and it is impossible to restore all the colors, especially because ordinary white light lacks a deep red spectrum, so its color rendering index cannot be effectively improved
In addition, for high color rendering white LEDs, there is another production method: red phosphor powder can be added to the fluorescent glue to achieve the effect of spectral compensation. However, due to the low excitation efficiency of the red phosphor powder, it will make the LED lighting The overall luminous efficiency is reduced, and the performance is still insufficient. It cannot meet the lighting requirements of the professional field, and it is not conducive to the application and promotion of LED lighting as a whole.

Method used

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  • High color rendering light emitting diode and manufacture method thereof
  • High color rendering light emitting diode and manufacture method thereof
  • High color rendering light emitting diode and manufacture method thereof

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Embodiment Construction

[0023] Such as figure 1 , Figure 2~Figure 4 As shown, a high color rendering light-emitting diode provided by the present invention includes a bracket 1 and a bracket pin 2, such as figure 2 , image 3 As shown, the bracket 1 can be a patch type, or it can be as Figure 4 As shown, the in-line type is used, and it is selected according to different occasions. The bracket 1 is provided with a cup chamber 11, wherein, the cup chamber 11 is fixed with a blue LED chip 3 and a red LED chip 4. The blue LED chip 3 and the red LED chip The light LED chip 4 adopts the form of being connected in series, and generally can be connected by wire bonding, that is, the blue LED chip 3 is used as a welding point, and the red light LED chip 4 is used as another welding point, which are welded together by metal wires, and finally connected in series. The two poles of the two chips are connected to the two bracket pins 2, and the electrodes are drawn out from the bracket pin 2, and the brac...

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Abstract

Provided is a high color rendering light emitting diode, comprising a support and a support pin. A blue ray LED chip and a red ray LED chip are fixedly arranged in a cup chamber. The blue ray LED chip is connected with the red ray LED chip in series. The blue ray LED chip and the red ray LED chip which are connected in series are connected to the support pin. The cup chamber is provided with yellow fluorescent glue which covers the blue ray LED chip and the red ray LED chip. According to the invention, a crimson color is added in the spectrum and the problem that an R9 test index is too low can be effectively solved.

Description

technical field [0001] The invention relates to light-emitting diode technology, in particular to a high-color-rendering light-emitting diode and a manufacturing method thereof. Background technique [0002] With the development of economy and society, the continuous progress of science and technology, and the continuous improvement of the industrialization of light-emitting diodes, LED lighting has gradually become popular. At present, there are more and more LED lighting fixtures for various professional fields on the market. These fields The requirements for light are high, especially for places such as exhibition halls, galleries, offices, etc., especially for the high reducibility of colors. [0003] To measure the color reproduction of the light source, it is generally expressed by the color rendering index, which is composed of 14 indicators (see the table below). By comparing each color, comparing its similarity, and then calculating and synthesizing it. [0004] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L25/075H01L33/48H01L33/50H01L33/00
CPCH01L2224/48137H01L33/50H01L2224/73265H01L25/0753H01L2224/32245H01L2224/48247H01L2924/00012H01L2924/00
Inventor 刘天明
Owner MLS
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