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
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

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  • 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

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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...

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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

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Application Information

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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
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