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

Manufacture method of red quantum dot-based high-color gamut white-light LED lamp bead

A technology of red light quantum dots and LED lamp beads, which is applied in the direction of electrical components, electrical solid devices, circuits, etc., can solve problems such as difficult large-scale industrialization, low light conversion efficiency, and complicated processes, so as to reduce difficulty and product defects High efficiency, improved color gamut, and high excitation efficiency

Active Publication Date: 2016-06-15
HUIZHOU JUFEI OPTOELECTRONICS CO LTD
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is to overcome the technical bottleneck of the prior art which is complicated in technology, low in light conversion efficiency, high in cost, and difficult to realize large-scale industrialization, thereby proposing a kind of high color gamut value, avoiding the quantum dot Method for manufacturing high-color gamut white LED lamp beads based on red light quantum dots with high yield rate and large-scale industrial production due to agglomeration failure phenomenon of phosphor powder

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
  • Manufacture method of red quantum dot-based high-color gamut white-light LED lamp bead
  • Manufacture method of red quantum dot-based high-color gamut white-light LED lamp bead
  • Manufacture method of red quantum dot-based high-color gamut white-light LED lamp bead

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1 This embodiment discloses a method for manufacturing a high color gamut white LED lamp bead based on red light quantum dots. The specific process steps are as follows: figure 1 Shown:

[0033] 1) Weigh a certain amount of MgTe red light quantum dot phosphor powder with a peak emission wavelength of 630nm (the red light quantum dot phosphor powder is purchased from the market, and its particle size is 5nm). According to the mass ratio of red light quantum dots and organic solvent is 1:1000, add an appropriate amount of organic solvent C to the red light quantum dot phosphor 7 h 8 (toluene).

[0034] 2) The mixed solution obtained in step 1) is placed in an ultrasonic cleaning machine for ultrasonic treatment. Control the water bath temperature of the ultrasonic cleaning machine to 35°C, the ultrasonic frequency to 70KHz, and the ultrasonic treatment time to 40min, so that the red light quantum dot phosphor is completely dissolved in the organic solvent to...

Embodiment 2

[0041] Embodiment 2 This embodiment discloses a method for manufacturing a high color gamut white LED lamp bead based on red light quantum dots. The specific process steps are as follows: figure 1 Shown:

[0042] 1) Weighing a certain amount of GaAs and GaN red light quantum dot phosphors with a peak emission wavelength of 600nm (the red light quantum dot phosphors are purchased from the market, and the particle size is 10nm). According to the mass ratio of red light quantum dots and organic solvent is 1:50, add an appropriate amount of organic solvent CHCl to the red light quantum dot phosphor 3 (chloroform).

[0043] 2) The mixed solution obtained in step 1) is placed in an ultrasonic cleaning machine for ultrasonic treatment. Control the water bath temperature of the ultrasonic cleaning machine to 45°C, the ultrasonic frequency to 15KHz, and the ultrasonic treatment time to 90 minutes, so that the red light quantum dot phosphor is completely dissolved in the organic solve...

Embodiment 3

[0050] Embodiment 3 This embodiment discloses a method for manufacturing a high color gamut white LED lamp bead based on red light quantum dots. The specific process steps are as follows: figure 1 Shown:

[0051] 1) Weigh a certain amount of AgInS red light quantum dot phosphor powder with a peak emission wavelength of 660nm (the red light quantum dot phosphor powder is purchased from the market, and its particle size is 1nm). According to the mass ratio of red light quantum dots and organic solvent is 1:2000, add an appropriate amount of organic solvent C to the red light quantum dot phosphor 6 h 1 2 (cyclohexane).

[0052] 2) The mixed solution obtained in step 1) is placed in an ultrasonic cleaning machine for ultrasonic treatment. Control the water bath temperature of the ultrasonic cleaning machine to 25°C, the ultrasonic frequency to 120KHz, and the ultrasonic treatment time to 10 minutes, so that the red light quantum dot phosphor is completely dissolved in the orga...

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
particle diameteraaaaaaaaaa
wavelengthaaaaaaaaaa
wavelengthaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the LED backlight processing field and relates to a manufacture method of a red quantum dot-based high-color gamut white-light LED lamp bead. According to the manufacture method of the invention, red quantum dot fluorescent powder is utilized, an organic solvent is adopted as a bridge, a mode according to which dissolution and extraction are performed sequentially is adopted encapsulate the red quantum dot fluorescent powder in a backlight LED lamp bead; and a blue light chip is adopted to carry out excitation, so that high-color gamut white light can be obtained. Through related technical means, the difficulty of encapsulation work is greatly reduced, and technological problems of little possibility of mixing the quantum dot fluorescent powder with encapsulation glue, high possibility of the failure of the agglomeration of the quantum dot fluorescent powder and little possibility of the solidification of the encapsulation glue due to the influence of organic matters can be solved. The manufacture method has a bright market prospect and a high economic value.

Description

technical field [0001] The invention belongs to the field of LED backlight processing, and in particular relates to a method for manufacturing a high color gamut white LED lamp bead based on red light quantum dots. Background technique [0002] Since the beginning of the 21st century, backlight technology has developed rapidly, and new technologies and products have been launched continuously. LED backlight has become the mainstream of the market. Compared with the traditional CCFL backlight, LED backlight has many advantages such as high color gamut, high brightness, long life, energy saving and environmental protection, real-time color controllable, etc., especially the high color gamut LED backlight makes TV, mobile phone, The screens of electronic products such as tablets have more vivid colors and a higher degree of color reproduction. At present, the commonly used LED backlight adopts the form of blue light chip to excite YAG yellow light phosphor. Due to the lack of ...

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 & Authority Applications(China)
IPC IPC(8): H01L33/00H01L33/50H01L33/48
CPCH01L33/00H01L33/48H01L33/50H01L2224/48091H01L2224/73265H01L2924/00014H01L33/502H01L2933/0041
Inventor 高丹鹏邢其彬苏宏波
Owner HUIZHOU JUFEI OPTOELECTRONICS CO LTD
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