PACKAGING METHOD FOR HIGH GAMUT WHITE LIGHT QUANTUM DOT LED
First Claim
1. A packaging method of high color gamut white light QD LEDs, the method comprising the following steps:
- a. add 50 to 2000 parts by weight of an organic solvent to 1 part by weight of red light QD phosphor powder to obtain a red light QD solution, and add 50 to 1500 parts by weight of an organic solvent to 1 part by weight of blue light QD phosphor powder to obtain a blue light QD solution;
b. perform ultrasonic processing respectively for said red light QD solution and blue light QD solution to obtain clear QD solutions;
c. add 1 to 50 parts by weight of the blue light QD solution to 1 part by weight of the red light QD solution to obtain a mixed QD solution;
d. add 3 to 800 parts by weight of mixed packaging glue to 1 part by weight of the mixed QD solution and mix them well;
e. mix the mixture obtained in step d in vacuum for deaeration to remove the organic solvent from the mixed solution obtained in step d and obtain a uniformly mixed red light and blue light QD phosphor glue;
f. add green light rare earth phosphor powder to said mixed QD phosphor glue according to a mass ratio of 1-50;
1 between the green light rare earth phosphor powder and red light QD phosphor powder, and mix them;
g. drip the mixed phosphor glue obtained in step f into an LED stent fixed with ultraviolet chips, and bake and solidify the LED stent to obtain LED beads.
1 Assignment
0 Petitions
Accused Products
Abstract
A packaging method of high color gamut white light quantum dot (QD) light emitting diodes (LEDs). The method includes: a. add an organic solvent to red light QD phosphor powder and blue light QD phosphor powder, respectively; b. perform ultrasonic processing for the solutions; c. prepare a mixed QD solution; d. add mixed packaging glue to the mixed QD solution; e. remove the organic solvent; f. add green light rare earth phosphor powder; g. drip the mixed phosphor glue into an LED stent fixed with ultraviolet chips, and bake and solidify the LED stent to obtain LED beads. The method produces high gamut white light LEDs and greatly improves the color gamut value of LED backlight beads, which reaches above NTSC 92%. With an organic solvent as a connecting bridge, QDs and the packaging glue are mixed uniformly, QD phosphor powder failure resulted from agglomeration is avoided, and quality of high color gamut white light LED beads is significantly improved.
-
Citations
10 Claims
-
1. A packaging method of high color gamut white light QD LEDs, the method comprising the following steps:
-
a. add 50 to 2000 parts by weight of an organic solvent to 1 part by weight of red light QD phosphor powder to obtain a red light QD solution, and add 50 to 1500 parts by weight of an organic solvent to 1 part by weight of blue light QD phosphor powder to obtain a blue light QD solution; b. perform ultrasonic processing respectively for said red light QD solution and blue light QD solution to obtain clear QD solutions; c. add 1 to 50 parts by weight of the blue light QD solution to 1 part by weight of the red light QD solution to obtain a mixed QD solution; d. add 3 to 800 parts by weight of mixed packaging glue to 1 part by weight of the mixed QD solution and mix them well; e. mix the mixture obtained in step d in vacuum for deaeration to remove the organic solvent from the mixed solution obtained in step d and obtain a uniformly mixed red light and blue light QD phosphor glue; f. add green light rare earth phosphor powder to said mixed QD phosphor glue according to a mass ratio of 1-50;
1 between the green light rare earth phosphor powder and red light QD phosphor powder, and mix them;g. drip the mixed phosphor glue obtained in step f into an LED stent fixed with ultraviolet chips, and bake and solidify the LED stent to obtain LED beads. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification