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A waterproof light-emitting diode flexible light bar and its production method

A technology of light-emitting diodes and production methods, applied in the direction of gas-proof/waterproof devices, semiconductor devices of light-emitting elements, light sources, etc., can solve the problems of easy yellowing of glue dripping and cumbersome processing techniques, etc., achieve simple and efficient production methods, and reduce production costs. The effect of cost and convenient operation

Active Publication Date: 2017-05-03
大冶有色设计研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of cumbersome processing technology of the surface glue-dipping waterproof soft light strip, and the problem of easy yellowing of the glue-dropping, to provide a waterproof light-emitting diode soft light strip that does not affect the light transmission, and has better waterproof performance and is not easy to turn yellow. , the production method is simple, the operation is convenient and efficient, and the production cost is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0010] Specific embodiment 1: Dissolve modified polyvinyl alcohol in volatile ethanol at 60°C to form a solution with a concentration of 8-12%, and place the waterproof light-emitting diode flexible light strip in the solution at room temperature Take it out after soaking for 10-30 seconds, and then dry it in a ventilated environment at 30-50°C for 2 hours to get a waterproof light-emitting diode flexible strip with a modified polyvinyl alcohol film coating on the surface. The modified polyvinyl alcohol film The thickness of the coating is 10-20μm, and the light transmittance is greater than 94%. It has no effect on the performance of the light bar after being powered on for 24 hours in water, which can fully meet the requirements of use.

specific Embodiment approach 2

[0011] Specific embodiment 2: Also under the condition of 60°C, dissolve the modified polyvinyl alcohol in volatile ethanol to form a solution with a concentration of 8-12%, and then use a spray gun to evenly spray the prepared solution on the whole The surface of the waterproof light-emitting diode flexible light strip, and finally put the sprayed waterproof light-emitting diode light strip in a ventilated environment at 30-50°C to dry for 2 hours, and then the waterproof light-emitting diode with modified polyvinyl alcohol film coating on the surface can be obtained Flexible light bar, the thickness of the modified polyvinyl alcohol film coating is 15-28 μm, the light transmittance is greater than 93.5%, and it has no effect on the performance of the light bar after energizing in water for 40 hours, and has more excellent waterproof performance.

[0012] On the one hand, the modified polyvinyl alcohol film coating in the present invention can endow the flexible light bar with...

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Abstract

The invention relates to a waterproof light-emitting diode (LED) flexible lamp bar and a production method thereof. The waterproof LED flexible lamp bar is provided with a substrate, and patch LED lamps are welded to the substrate. The waterproof LED flexible lamp bar is characterized in that the substrate is made of an FPC flexible board, and modified polyvinylalcohol film coatings adhere to the outer surface of the substrate and the outer surfaces of the LED lamps correspondingly. According to the waterproof LED flexible lamp bar and the production method thereof, as the modified polyvinylalcohol film coatings with excellent performance are arranged on the outer surface of the substrate and the outer surfaces of the LED lamps in a dipping or coating mode, a good waterproof property is achieved, the light-emitting luminance of the lamp bar is not affected due to the excellent light transmission of the coatings, and the defect that glue waterproof LED flexible lamp bars are prone to generating yellow stains is overcome due to the excellent weather resistance of the coatings; the production method is simple, operation is convenient and efficient, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the field of decorative lighting LED lamps, in particular to a waterproof light-emitting diode flexible light bar and a production method thereof. Background technique [0002] LED flexible light strip is also called LED flexible light strip. It uses FPC soft board as the substrate, and solders SMD LED and other components on the substrate with a special process. Because the illuminant is LED, it is called LED flexible light strip; LED waterproof flexible light strips are LED light strips that have been waterproofed. At present, the commonly used waterproof LED flexible light strips are made of surface glue for waterproofing, that is, the LED light strips are placed flat on the glue surface. , Fix the LED light bar with double-sided tape on the back, and then drip a layer of glue on the surface of the LED light bar to make the surface waterproof. The processing of the waterproof LED flexible light bar requires special glue-dro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S4/00F21V19/00F21V31/00C08J5/18C08L29/04F21Y115/10
CPCC08J5/18C08J2329/04C08L29/04F21V19/001F21V31/00
Inventor 雷嵩
Owner 大冶有色设计研究院有限公司