LED display screen

An LED display and elastic resin technology, applied in instruments, identification devices, etc., can solve the problems of easy reflection of the rubber surface, the impact strength of the protective resin layer cannot meet the requirements for use, and edge collapse, and achieves good impact strength. Scratch and chipping resistance, and the effect of buffering external shocks

Active Publication Date: 2019-08-20
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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  • LED display screen

Examples

Experimental program
Comparison scheme
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 process edge is reserved around the module, and the small area is cleaned with alcohol and non-woven cloth. The distance between the surface of the LED module.

[0112] 2. Prepare transparent epoxy resin glue with a mass ratio of epoxy resin glue A:B of 3:1, and mechanically stir for 5 minutes. Cover the electronic components on the back of the LED module with adhesive tape before glue filling to prevent the glue from contaminating the IC surface during the glue filling process. This example adopts the method of front glue filling. Put the LED module light face up on a hollow fixture to ensure that the light surface has a good levelness, and then pour enough transparent glue on the horizontal LED light surface, make it 25cm long and 25cm wide and pass through the release agent The processed PC film is buckled on the glue surface,...

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 process edge is reserved around the module, and the small spacing is cleaned with alcohol and non-woven cloth The surface of the LED module.

[0121] 2. Prepare transparent epoxy resin glue with a mass ratio of epoxy resin glue A:B of 3:1, and mechanically stir for 5 minutes. Cover the electronic components on the back of the LED module with adhesive tape before glue filling to prevent the glue from contaminating the IC surface during the glue filling 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 that has been treated with a release agent, 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 put the LED module lamp surface Buckle down on the glue, and...

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Abstract

The invention discloses an LED display screen, which is provided with a lamp face. A protection resin layer and an elastic resin layer are sequentially arranged on the lamp face of the LED display screen, and the protection resin layer is located between the elastic resin layer and the lamp face. According to the LED display screen, the properties such as water prevention, dust prevention and impact prevention of the lamp face of the LED display screen can be improved through the protection resin layer, the properties of scratching resistance and edge breakage resistance of the protection resin layer can further be improved through the elastic resin layer, and thus the lamp face of the LED display screen is not prone to the phenomena of scratching and edge breakage; by arranging the protection resin layer and the elastic resin layer simultaneously and meanwhile retaining an original protection resin layer to protect lamp beads against being damaged by external force, the problems of scratching, edge breakage and the like of the surface of a current glue filling LED display screen can be effectively solved; and meanwhile, the high-toughness elastic resin layer on the outermost layerfurther has certain elasticity, external impact can be effectively buffered, and thus the lamp face of the LED display screen is good in impact-resistance strength.

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 large-screen and small-pitch LED displays, the process of potting resin glue on the lamp surface of the LED module is usually used to improve the waterproofing of the lamp surface of the LED display by forming a high-hardness protective resin layer. Dustproof and shockproof performance. At present, in the selection of potting resin glue, epoxy resin glue with strong hardness after curing is generally used to improve the impact resistance of the entire screen and effectively protect the LED lamp beads from being damaged by external forces. However, the glue surface formed by this epoxy resin glue is prone to irreversible scratches and chipping in daily use. If the choice of potting resin glue directly adopts modified glue with strong toughness, the protective resi...

Claims

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Application Information

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Patent Type & Authority Applications(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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