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LED light emitting device manufacturing method and LED light emitting device

一种发光装置、制造方法的技术，应用在半导体器件、电气元件、电路等方向，能够解决荧光粉浓度不便、困难、增加开发与设计等问题

Inactive Publication Date: 2017-05-31
UNITY OPTO TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is quite inconvenient in designing and adjusting the concentration of phosphors. As long as the concentration of any phosphor is changed, the actual color temperature of light formed will be different. However, when changing the ratio and concentration, it is impossible to simulate the possible results after the change. , therefore, the white light LED2 must be packaged after each deployment and then measured to obtain relevant data, which greatly increases the difficulty of development and design

Method used

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  • LED light emitting device manufacturing method and LED light emitting device
  • LED light emitting device manufacturing method and LED light emitting device
  • LED light emitting device manufacturing method and LED light emitting device

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Embodiment Construction

[0055] As mentioned above, a single white LED light source is inconvenient in design and manufacture. Therefore, the inventor of this case adopts another design concept that is not limited to the above-mentioned thinking, that is, to use LEDs with different colors of light, so that the various colors of light can be mixed to form the required white light. color temperature. The inventor of this case first conceived how to use two kinds of LEDs to mix white light. At the initial stage of design, an LED formed by an independent light-emitting diode chip package was installed in the lamp, and another LED with a light-emitting diode chip mounted on a phosphor powder was used to mix colors with each other. The lamp presents white light. For example, a red light-emitting diode chip is used as the source of red light, and another LED is selected with a blue light-emitting diode chip and green phosphor as the source of green light. However, when adjusting the overall color temperature...

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Abstract

Disclosed are an LED light emitting device and its manufacturing method. A blue LED chip specification is selected, a green phosphor and the blue LED chip are used to determine a green light frame on the CIE1931 chromaticity coordinates and a red phosphor together with a blue LED chip are used to determine a red light frame on the CIE1931 chromaticity coordinates, and a predetermined straight line passing through the color temperature target frame is selected, and both end points of the predetermined straight line fall within the green light frame and the red light frame, so as to determine the concentration of the green phosphor and the red phosphor, and the green and red phosphors and a blue LED chip are packaged to form a first LED and a second LED, and at least one first LED and at least one second LED are installed on a substrate.

Description

technical field [0001] The invention relates to the field of light-emitting diodes, in particular to a method for manufacturing an LED light-emitting device that is easy to adjust color temperature and the LED light-emitting device thereof. Background technique [0002] The cone cells of the human eye can be divided into three types of receptors according to the different photopigments to respectively receive the three colors of red, green and blue corresponding to the visible spectrum. These cone cells can define and describe the color. In order to standardize the data of human eyes' perception of color, the International Commission on Illumination (COMMISSION INTERNATIONALE DE L'ECLAIRAGE, CIE) created the CIE1931 color space in 1931. Further, after simplifying the stimulus values ​​XYZ of the three primary colors, the CIE1931xy chromaticity diagram can be obtained , which defines the canonical coordinates for common standards today. That is, if the CIE1931xy chromaticity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/00H01L33/50
CPCH01L33/005H01L33/504H01L2933/0041H01L25/13
Inventor 吴庆辉吴志贤张暐路洹瀛沈士超
Owner UNITY OPTO TECH CO LTD
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