UV cured fluorescent color conversion film for electroluminescence display device and preparation

A color conversion and electroluminescence technology, applied in chemical instruments and methods, luminescent coatings, luminescent materials, etc., can solve the problems of low brightness and unsatisfactory conversion efficiency, and achieve the effect of excellent performance

Inactive Publication Date: 2009-07-15
INESA ELECTRON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of full-color electroluminescent display with ultraviolet curing color conversion film and its preparation method, described this kind of full-color electroluminescent display with ultraviolet light curing color conversion film and its preparation method to solve the existing In the technology, when blue light is converted into green light and red light through color conversion film, the brightness is low and the conversion efficiency is not ideal.

Method used

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  • UV cured fluorescent color conversion film for electroluminescence display device and preparation
  • UV cured fluorescent color conversion film for electroluminescence display device and preparation
  • UV cured fluorescent color conversion film for electroluminescence display device and preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051]

[0052] Put the reactive diluent, polymer dispersant, and defoamer components into the pulping container, and use a high-speed adjustment disperser to stir for 5-120mins at a speed of 300-1000rmp. Then add the fluorescent pigment in the formulated amount, and stir with a high-speed adjustment disperser for 5-120mins, and the rotation speed is 700-4000rmp. Then add the active oligomer in the formulated amount, and grind with a grinder at a speed of 3000-10000 rpm for 1-24 hours until the fineness of the mixture in the pulping vessel is less than 10 μm. Finally, a photoinitiator dissolved with a certain active monomer is added, and a high-speed disperser is used for high-speed stirring to obtain an ultraviolet-curable organic fluorescent coating for a full-color electroluminescent display. After screen-printing the organic fluorescent paint on the light emitting surface of the electroluminescence display screen, a single-tube medium-pressure mercury lamp is used, and ...

Embodiment 2

[0054]

[0055] Put the reactive diluent, polymer dispersant, and defoamer components into the pulping container, and use a high-speed adjustment disperser to stir for 5-120mins at a speed of 300-1000rmp. Then add the fluorescent pigment in the formulated amount, and stir with a high-speed adjustment disperser for 5-120mins, and the rotation speed is 700-4000rmp. Then add the active oligomer in the formulated amount, and grind with a grinder at a speed of 3000-10000 rpm for 1-24 hours until the fineness of the mixture in the pulping vessel is less than 10 μm. Finally, a photoinitiator dissolved with a certain active monomer is added, and a high-speed disperser is used for high-speed stirring to obtain an ultraviolet-curable organic fluorescent coating for a full-color electroluminescent display. After screen-printing the organic fluorescent paint on the light emitting surface of the electroluminescence display screen, a single-tube medium-pressure mercury lamp is used, and ...

Embodiment 3

[0057]

[0058] Put the reactive diluent, polymer dispersant, and defoamer components into the pulping container, and use a high-speed adjustment disperser to stir for 5-120mins at a speed of 300-1000rmp. Then add the fluorescent pigment in the formulated amount, and stir with a high-speed adjustment disperser for 5-120mins, and the rotation speed is 700-4000rmp. Then add the active oligomer in the formulated amount, and grind with a grinder at a speed of 3000-10000 rpm for 1-24 hours until the fineness of the mixture in the pulping vessel is less than 10 μm. Finally, a photoinitiator dissolved with a certain active monomer is added, and a high-speed disperser is used for high-speed stirring to obtain an ultraviolet-curable organic fluorescent coating for a full-color electroluminescent display. After screen-printing the organic fluorescent paint on the light emitting surface of the electroluminescent display screen, a single-tube medium-pressure mercury lamp is used to cur...

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Abstract

The invention relates to an ultraviolet-cured fluorescent color transformation film for a full-color electroluminescence display, and a preparing method thereof, belonging to the field of full-color electroluminescence displays. The ultraviolet-cured fluorescent color transformation film contains active oligopolymer, reactive diluent, light trigger, fluorescent pigment, macromolecular dispersant, flatting agent, foam killer and adhesive attraction promoting agent. The preparing method comprises the following steps: the above substances are proportionally mixed so as to obtain an ultraviolet-cured fluorescent paint which is printed through a screen on the luminescence exit face of the full-color electroluminescence display; and then, ultraviolet irradiation for curing is carried out so as to obtain the ultraviolet-cured fluorescent color transformation film for the full-color electroluminescence display. By means of taking a single high-brightness blue-fluophor as a background light source, fundamental colors of red and green, which are brighter than the background blue light, can be obtained after the background blue light passes through the film, so the fundamental colors of red and green, together with the background blue light, realize the full color displaying of the electroluminescence display. The invention has the advantages of simple production process and high color transformation efficiency.

Description

technical field [0001] The invention relates to a full-color electroluminescence display, in particular to an organic fluorescent color conversion film and a preparation method thereof, in particular to an ultraviolet-cured color conversion film for a full-color electroluminescence display and a preparation method thereof. Background technique [0002] Many people have reported on full-color electroluminescent displays. As reported by D. Seale et al. "Self-Aligned Phosphor Patterning Techniques for Inorganic EL Displays" (SID' 2002 Digest, p. 109-111). The fabrication method of the full-color thick dielectric film electroluminescence display is introduced in detail in this paper. Compared with thin-film electroluminescent displays, it can better prevent the breakdown of the insulating layer and reduce the operating driving voltage. However, it adopts the traditional "three sources into color" method, that is, vacuum coating is required to form three electroluminescent mate...

Claims

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Application Information

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IPC IPC(8): C09D5/22C09K11/06H01L27/32
Inventor 陈晨曦张彦华刘红君肖田王夏琴
Owner INESA ELECTRON
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