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led display

A technology of LED display screen and elastic resin, which is applied in the direction of identification devices and instruments, which can solve the problems of chipping, the impact strength of the protective resin layer cannot meet the use requirements, and the rubber surface is easy to reflect light, so as to buffer external impact and improve the durability. Scratch resistance and edge chipping performance, good impact strength

Active Publication Date: 2021-11-26
UNILUMIN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the glue surface formed by this epoxy resin glue is prone to irreversible scratches, chipping and other phenomena in daily use.
If the choice of potting resin glue directly adopts modified glue with strong toughness, the protective resin layer formed by it cannot meet the use requirements in terms of impact strength, and it is easy to shrink during the cooling and solidification of the glue. Form a grid texture that sinks along the lamp slit, affecting the overall display effect and appreciation of the large screen
Moreover, the smooth and flat rubber surface is easy to reflect light, which affects the overall visual effect

Method used

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Examples

Experimental program
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Effect test

specific Embodiment 1

[0111] 1. Take a P1.2 small-pitch LED module, the length is 181.54mm, the width is 162.48mm, the height of the LED lamp bead is 1mm, and a 5mm wide craft edge is reserved around the module, and the small space is cleaned with alcohol and non-woven fabric. Spacing LED module surface.

[0112] 2. Prepare transparent epoxy resin glue with the mass ratio of epoxy resin glue A:B as 3:1, and stir mechanically for 5 minutes. Cover the electronic components on the back of the LED module with adhesive tape before gluing to prevent the glue from contaminating the IC surface during the gluing process. This example adopts the method of front-side gluing. Place the LED module light face up on a hollow fixture to ensure that the light surface has a good level, and then pour a sufficient amount of transparent glue on the horizontal LED light surface. The treated PC film is withheld on the glue surface, and the glue liquid completely covers the lamp surface by squeezing, and the overflowing...

specific Embodiment 2

[0120] 1. Take a P1.2 small-pitch LED module, the length is 181.54mm, the width is 162.48mm, the height of the lamp bead is 1mm, and a 5mm-wide craft edge is reserved around the module, and the small space is cleaned with alcohol and non-woven fabric LED module surface.

[0121] 2. Prepare transparent epoxy resin glue with the mass ratio of epoxy resin glue A:B as 3:1, and stir mechanically for 5 minutes. Cover the electronic components on the back of the LED module with adhesive tape before gluing to prevent the glue from contaminating the IC surface during the gluing process. This example adopts the method of pouring glue upside down. Take a PC film with a length of 25cm and a width of 25cm and treated with a release agent. Use tape to build a dam around the film to prevent the glue from flowing out of the film. Pour a sufficient amount of transparent glue on the horizontal PC film, and then place the LED module light surface. Buckle down on the glue, and make the glue con...

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Abstract

An LED display screen, the LED display screen has a lamp surface, a protective resin layer and an elastic resin layer are sequentially arranged on the lamp surface of the LED display screen, and the protective resin layer is located between the elastic resin layer and the between the lights. For the above-mentioned LED display, the protective resin layer can improve the waterproof, dustproof, and impact-proof performance of the lamp surface of the LED display; the elastic resin layer can further improve the scratch resistance and chipping resistance of the protective resin layer, and the lamp surface of the LED display is not easy Scratches and chipping occur. By setting the protective resin layer and the elastic resin layer at the same time, while retaining the original protective resin layer to protect the lamp beads from external damage, it can effectively solve the problems of scratches and chipping on the surface of the glue-filled LED display. At the same time, the outermost high-toughness elastic resin layer also has a certain degree of elasticity, which can effectively buffer external impacts, so that the light surface of the LED display screen has better impact resistance.

Description

technical field [0001] The present application relates to the field of display technology, in particular to an LED display screen. Background technique [0002] In order to improve the reliability and stability of the large-screen and small-pitch LED display, the process of encapsulating resin glue on the lamp surface of the LED module is usually used to improve the waterproofness of the lamp surface of the LED display by forming a high-hardness protective resin layer. Dustproof and anti-collision performance. At present, epoxy resin glue with strong hardness after curing is generally used in the selection of potting resin glue to improve the impact resistance of the entire screen and effectively protect the LED lamp beads from being damaged by external forces. However, in daily use, the adhesive surface formed by this epoxy resin glue is prone to irreversible scratches, edge chipping and other phenomena. If the selection of potting resin glue directly uses modified glue w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/33
CPCG09F9/33
Inventor 林义赵平林袁贤阳黄映茂
Owner UNILUMIN GRP
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