Cct modulating method, led light source module, and package structure thereof

A technology of light-emitting diodes and modulation methods, applied in the field of light-emitting diode light source modules, can solve the problem of inability to obtain spectrum spectrum and the like

Active Publication Date: 2012-05-16
IND TECH RES INST
View PDF7 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using the existing methods of red LED, green LED and blue LED to modulate light color cannot obtain a spectrum with a relatively continuous spectrum (that is, white light with high color rendering).

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cct modulating method, led light source module, and package structure thereof
  • Cct modulating method, led light source module, and package structure thereof
  • Cct modulating method, led light source module, and package structure thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0096] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

[0097] The following description will describe the embodiments of the present invention in detail along with the drawings of the embodiments. The same or similar reference numerals used in the drawings are used to describe the same or similar parts.

[0098] In an exemplary embodiment of the present invention, the LED light source module with variable light color uses two types of white light to mix together to modulate white light sources with different color temperature outputs, and one of the two types of white light that participates in light mixing includes at least one broadband Spectrum monochromatic light. Therefore, the white light emitted by the LED light source module provided by the embodiments of the present invention has at least good optical quality such as better spectral continuity and higher color rendering....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A correlated color temperature (CCT) modulating method including following steps is provided. A white LED light source is modulated to emit a first white light. At least one LED light source is modulated to emit a second white light, wherein the second white light includes at least one broad-spectrum monochromatic light. The first white light and the second white light are mixed to produce a third white light. The color rendering index (CRI) of the third white light is greater than those of the first white light and the second white light, and the color coordinates of the first white light, the second white light, and the third white light are different from each other. Furthermore, an LED light source module and a package structure thereof are also provided.

Description

technical field [0001] The invention relates to a light-emitting diode (light-emitting diode, LED) light source module, in particular to a light-color-variable LED light source module, a light-color modulation method and a packaging structure thereof. Background technique [0002] LED is a light-emitting component made of semiconductor materials, which has the advantages of small size, long life, low driving voltage, low power consumption, and good shock resistance. At present, LED has been widely used in the fields of indicator light, lighting and backlight. [0003] Most of the light used for general lighting is white light, and because a single LED chip has a narrow luminous spectrum and cannot emit white light itself, some techniques are needed to achieve the purpose of generating white light. There are two common methods of producing white light at present. One is to use the blue light generated by the blue LED to excite the phosphor to produce yellow light, which is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityApplications(China)
IPC IPC(8): H05B37/02H01L25/075H01L33/48
CPCH01L25/0753H01L2924/0002H01L33/486H01L33/50H05B33/086H05B45/20H01L2924/00
Inventor李兆伟张爱莲钟享吉陈继峰胡鸿烈
OwnerIND TECH RES INST