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Preparation method of organic fluorescent film

A light-emitting film and fluorescent technology, which is applied in the direction of electrical components, circuits, semiconductor devices, etc., can solve the problem of uniform mixing of difficult fluorescent powder, etc., and achieve the effects of reducing production costs, good light color uniformity, and good heat dissipation performance

Active Publication Date: 2016-09-21
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process uses a physical mixing method, and it is also difficult to achieve uniform mixing of phosphors in the resin.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0014] The preparation method of the organic fluorescent thin film, the process steps are as follows:

[0015] (1) Template making: Wash and dry the two glass plates, place the wrapped rubber strips on the three sides between the two glass quilts, and wrap the glass plates with rubber strips with transparent cellophane stained with glue. The three sides are tightly sealed, and one side is reserved for grouting. The distance between the two glass plates is 0.5-6mm. Put the prepared template into the oven for drying at 50°C;

[0016] (2) Remove the flame retardant in methyl methacrylate, take a certain amount of methyl methacrylate, wash with 5% sodium hydroxide (NaOH) for 3-4 times, until the water layer is colorless;

[0017] (3) Pre-polymerization: Take 58.79-92.88g of methyl methacrylate, 0.02-0.06g of azobisisobutyronitrile, 2-10g of dibutyl phthalate, 2-6g of stearic acid, and 0.1g of methacrylic acid -0.15g, add to the batching container and mix evenly, then place in a w...

Embodiment 1

[0023] The preparation method of the organic fluorescent thin film, the process steps are as follows:

[0024] (1) Template making: Wash and dry the two glass plates, place the wrapped rubber strips on the three sides between the two glass quilts, and wrap the glass plates with rubber strips with transparent cellophane stained with glue. The three sides are tightly sealed, and one side is reserved for grouting. The distance between the two glass plates is 0.5mm, and the prepared template is dried in an oven at 50°C;

[0025] (2) Remove the flame retardant in methyl methacrylate, take a certain amount of methyl methacrylate, and wash it with 5% sodium hydroxide (NaOH) for 3 times until the water layer is colorless;

[0026] (3) Pre-polymerization: Take 92.88g of methyl methacrylate, 0.02g of azobisisobutyronitrile, 2g of dibutyl phthalate, 2g of stearic acid, and 0.1g of methacrylic acid, add them to the batching container and mix well , then placed in a water bath at 75°C, an...

Embodiment 2

[0031] The preparation method of the organic fluorescent thin film, the process steps are as follows:

[0032] (1) Template making: Wash and dry the two glass plates, place the wrapped rubber strips on the three sides between the two glass quilts, and wrap the glass plates with rubber strips with transparent cellophane stained with glue. The three sides are tightly sealed, and one side is reserved for grouting. The distance between the two glass plates is 6mm, and the prepared template is dried in an oven at 50°C;

[0033](2) Remove the flame retardant in methyl methacrylate, take a certain amount of methyl methacrylate, and wash it with 5% sodium hydroxide (NaOH) for 4 times until the water layer is colorless;

[0034] (3) Pre-polymerization: Take 58.79g of methyl methacrylate, 0.06g of azobisisobutyronitrile, 10g of dibutyl phthalate, 6g of stearic acid, and 0.15g of methacrylic acid, add them to the batching container and mix well , and then placed in a water bath at 80°C,...

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PUM

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Abstract

The invention discloses a preparation method of an organic fluorescent luminous film. The method comprises the following steps: preparing a template, namely washing two glass plates, drying, putting wrapped rubber strips on three edges between the two glass plates, sealing the three edges, with the rubber strips, of the glass plates with transparent glass paper coated with glue water, leaving one edge for grouting, controlling the interval between the two glass plates to be 0.5mm-6mm, and putting the prepared template into a drying box for drying at 50 DEG C.

Description

technical field [0001] The invention relates to the field of LED lighting technology and optoelectronic display, in particular to a preparation method of a light wave conversion thin film material used in light emitting devices including LED lighting sources, LED display screens and display backlight sources. Background technique [0002] LED (light-emitting diode), as a kind of novel solid light source, develops very rapidly in recent years, has been widely used in fields such as large-screen display, traffic signal light, landscape lighting, street lighting. Compared with incandescent lamps and energy-saving lamps, LED lighting sources have the advantages of small size, fast response, good shock resistance, long life, especially energy saving and environmental protection, and are known as the fourth generation of lighting sources. Due to technical reasons, the current mainstream LED manufacturing method is blue light chip + yellow phosphor powder, and the packaging process...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C08F220/06C08F2/44C08K13/02C08K3/24C08K3/34C08K3/28C08K5/12C08K5/09H01L33/50
Inventor 关荣锋董鹏玉蒋大伟徐炜娟宗天煜
Owner YANCHENG INST OF TECH
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