Production process of LED display screen

Abstract

The invention discloses a production process of an LED display screen. The production process comprises the steps that an electronic element is fixed on a PCB panel through a steel mesh in a welding manner, wherein the steel mesh may be a red glue steel mesh or a solder paste steel mesh, and red glue or solder paste can be uniformly mixed with and coats the PCB panel by using a printing machine; an LED is inserted on the PCB panel according to the packaging polarity of the PCB panel, wherein a worker needs to wear an anti-static ring in the insertion process; the PCB panel is fixed to a product clamp, wherein the clamp needs to be highly matched with the PCB panel so as to guarantee the perpendicularity of the LED lamp on the PCB panel; etc. According to the invention, a coating formed after UV curing is arranged on the surface of the produced and formed display screen, the hardness of the coating formed by the UV curing resin coating is improved through UV curing, bubbles in the coating are reduced through a defoaming agent, and the coating formed after UV curing is high in scratch resistance, high in hardness and good in wear resistance and presents good antifouling performance.

Description

technical field [0001] The invention relates to the technical field of display screen production, in particular to a production process of an LED display screen. Background technique [0002] The LED display screen is an electronic display screen composed of LED dot matrix. By turning on and off the traffic light beads to replace the screen display content forms such as text, animation, pictures, and video in a timely manner, the component display control is performed through a modular structure, which is mainly divided into display modules. , Control system and power system. [0003] In recent years, LED display technology and products have developed rapidly, and LED displays have become an important part of the information industry. LED displays mostly use transparent synthetic polymer materials, such as: PC (polycarbonate), PMMA (polymethacrylic acid) Methyl ester), PET (polyester), etc., will cause scratches and abrasions on the surface in the actual application process...

AI Technical Summary

Problems solved by technology

[0003] In recent years, LED display technology and products have developed rapidly, and LED displays have become an important part of the information industry. LED displays mostly use transparent synthetic polymer materials, such as: PC (polycarbonate), PMMA (polymethacrylic acid) Methyl ester), PET (polyester), etc., will cause scratches and abrasions on the surface in the actual application process. The traditional method is to coat a layer of colorless and transparent paint on the surface to improve the hardness, wear resistance and resistance of the surface. However, on the one hand, the paint layer on the surface is easy to fall off and cannot effectively protect the base material for a long time. On the other hand, the coating and drying of the paint layer make the production of the display screen difficult. cumbersome, which increases production costs

[0004] Ultraviolet light curing (UV curing) coatings are an environmentally friendly and energy-saving coating developed in the 1960s. my country began to set foot in this technical field in the 1970s, and it has made great progress after the 1990s. UV curing coatings can be cured under ultraviolet light. Fast curing, not only has a fast curing speed, but also saves energy compared with heat-cured coatings. At present, it is not only widely used in wood, metal, plastic, paper, leather, but also in optical fibers, printed circuit boards, and electronic components. Successfully applied to packaging and other materials, but the conventional UV-cured coating has poor hardness, so it is not resistant to friction and is easy to scratch

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