Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

White light LED (Light Emitting Diode) capable of lighting by triggering carbon points through blue light, and preparation method thereof

A blue light excitation, LED chip technology, applied in the field of white light LED, white light LED and its preparation, can solve the problems of poor stability, low color rendering property of white light LED, narrow color gamut, etc., and achieve the effect of avoiding sedimentation and improving luminous efficiency

Inactive Publication Date: 2013-04-24
SHANDONG UNIV
View PDF3 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the existing white light LED technology, the present invention provides a white light LED in which blue light stimulates carbon dots to emit light, so as to solve the problems of low color rendering, narrow color gamut and poor stability of the current white light LED.

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
  • White light LED (Light Emitting Diode) capable of lighting by triggering carbon points through blue light, and preparation method thereof
  • White light LED (Light Emitting Diode) capable of lighting by triggering carbon points through blue light, and preparation method thereof
  • White light LED (Light Emitting Diode) capable of lighting by triggering carbon points through blue light, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Such as figure 1 As shown, the blue-light-excited white light LED of the present invention that emits carbon dots includes an insulating base 1, a bowl-shaped reflector 3, a blue LED chip 5 and a lens 8, the bowl-shaped reflector 3 is arranged on the insulating base 1, and the bowl-shaped reflector 3 and the insulating base 1 are provided with a heat conduction sheet 2, the blue LED chip is fixed in the bowl-shaped reflector 3, the blue LED chip is covered with silane functionalized carbon dots 6, and an electrode 7 is arranged on each side of the insulating base 1, The two electrodes 7 are respectively connected to the blue LED chip 5 through a gold wire 4. A lens 8 is arranged on the outside of the bowl-shaped reflector 3, and a transparent encapsulation material 9 is filled in the lens 8. The connection between the two electrodes 7 and the gold wire 4 Dots, gold wires 4 , bowl-shaped mirrors 3 , silane functionalized carbon dots 6 and blue LED chips 5 are wrapped on ...

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

PropertyMeasurementUnit
Emission wavelengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a white light LED (Light Emitting Diode) capable of lighting by triggering carbon points through blue light, and a preparation method thereof. The white light LED comprises an insulating base, a bowl-shaped reflection mirror, a blue light LED chip and a lens, wherein the bowl-shaped reflection mirror is arranged on the insulating base; a heat conduction sheet is arranged between the bowl-shaped reflection mirror and the insulating base; the blue light LED chip is fixed in the bowl-shaped reflection mirror; the silane functionalized carbon points are covered on the blue light LED chip; the lens is arranged outside the silicon bowl-shaped reflection mirror; a transparent sealing material is filled into the lens; organic multielement acid is fed into silane liquid which is boiled and flows back under the protection of nitrogen, so that the organic multielement acid is subjected to pyrolysis so as to synthesize the silane functionalized carbon points; the blue LED chip is fixed inside the bowl-shaped reflection mirror; the silane functionalized carbon points are coated on the blue LED chip and are cured; the lens is arranged outside the bowl-shaped reflection mirror; and the lens is filled with the transparent sealing material. The white light LED and the preparation method can be beneficial for improving the light emission efficiency, and the use stability and prolonging the service life of an LED.

Description

technical field [0001] The invention relates to a white light LED and a preparation method thereof, in particular to a white light LED produced by exciting silane functionalized carbon dots to emit light through a blue light LED, and belongs to the technical field of semiconductor lighting. Background technique [0002] LED is a new type of solid-state light source, which has the advantages of energy saving, firmness, environmental protection, long life and small size. It has become a research hotspot in the fields of optoelectronics and lighting. Among them, white LEDs have become a new generation of lighting sources, widely used in large-scale display screens, landscape lighting, automotive lights, liquid crystal display backlight and decoration and other fields. [0003] At present, white light LEDs are mainly obtained by combining three primary color LED chips and converting wavelengths of phosphors, and the latter is currently the mainstream technology for obtaining whi...

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
IPC IPC(8): H01L33/50H01L33/48
CPCH01L2224/8592H01L2224/48091H01L2924/00014
Inventor 郝霄鹏尹正茂吴拥中谢政刘春艳刘晓燕徐现刚
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com