LED display cabinet basics knowledge collection

- Jun 25, 2019-

First, the main role of the box:

    1.1 Fixed function: For the internal fixed module / unit board, power supply and other display components, all components must be fixed inside the box to facilitate the connection of the entire display, external fixed frame structure or steel structure.

    2.1 Protection: Protect the electronic components inside from the external environment, protect the components and have a good protective effect.

    Second, the classification of the box:

    1. Material classification of the box: The general box is an iron box, and the high-end can be made of aluminum alloy, stainless steel, carbon fiber, magnesium alloy and nano-polymer material box.

    2. Classification of the use of the cabinet: The main classification method is related to the use environment. It is divided into a waterproof box and a simple box in terms of waterproof performance; it can be divided into a front turn box and a double side from the installation location and maintenance and display performance. Box, curved box, etc.

    3, the market mainstream die-cast aluminum box picture

    Third, the introduction of the main cabinet

    1. Introduction of curved LED display box

The curved LED box is a specially designed LED display box for various curved screens. Classification of curved box: divided into outer arc shape and inner arc shape. Generally, the arc-shaped box body is a box structure with an arc shape and the module and unit plate are ordinary materials, plus a curved steel structure. Designed to form a variety of curved displays.

    2. Features of front LED display box and front maintenance display

    In special occasions, the front display LED display box must be used to make the front maintenance display and the front opening display. The main feature is that the whole box is made by the front and rear halves being opened by the upper and lower sides.

    Box structure: The whole box is like a hinge that opens from the bottom to the top. After opening below, the components inside the box can be repaired and maintained. After the screen is installed or repaired, the outside side is closed and the button is locked. The cabinet is waterproof.

    Adapt to the occasion: suitable for outdoor LED display, with a row of cabinets installed, no maintenance space behind.

    Advantages and Disadvantages: The advantage is to facilitate the maintenance and maintenance of the LED screen body without the maintenance space behind; the disadvantage is that the box cost is higher, and the two cabinets are used between the two cabinets when the LED display is made. Several times more power lines and cables, affecting the efficiency of communication and power supply, and increasing production costs.

    3, double-sided LED display box structure

    The double-sided LED display box is also called the LED double-sided box, and is mainly used for the electronic display that needs to be displayed on both sides.

    Box structure: two-sided display display box structure is equivalent to two front maintenance displays connected back to back, double-sided box is also a special front-turn structure box, the middle belongs to the fixed structure, the two sides are connected with the upper part of the middle, When maintenance is required, the cabinet that needs to be repaired or maintained can be opened upwards.

    Features of use: 1, the screen area can not be too large, generally a box of a display; 2, mainly by hoisting installation; 3, two sides of the display can share a LED control card, the control card uses a partition control card Generally, the area on both sides is equal, and the display content is the same. It is only necessary to divide the content into the same two parts in the software.

    Fourth, the development trend of LED display box

    In recent years, small-pitch technology has actively entered the field of outdoor fixed-mounted LED display with its superior display effect and the ability to better integrate 3D, VR/AR, interactive and other emerging technologies. A large number of emerging markets, such as gas station billboards, electronic reading columns, bus stations and other market segments that could not be used with small spacing, can now be widely used.

    However, the small-pitch LED display has developed rapidly in the outdoor solid-fixing field, and it has brought tremendous changes and improvements to the engineering display industry. At the same time, we have also found some changes that have come along: for example, the iron box-based model in the market. Due to the heavy weight, poor precision, and insufficient strength, the group has not been able to keep up with the development of small spacing of LED displays, and some new module materials are receiving increasing attention from the market.

    Among them, the most popular in the market is “die-cast aluminum”.

    After several years of development, the die-cast aluminum box has become lighter and lighter, the structure is more and more reasonable, and the precision is higher, which can basically achieve seamless splicing. The latest die-cast aluminum display is not only a simple upgrade of the traditional display box, but also a comprehensive optimization and update from the structure and performance. It is a compact indoor rental display with patented design. It is very convenient to install and maintain.

    In addition to die-cast aluminum, there are many new materials that have begun to receive attention in the industry. For example, carbon fiber, magnesium alloy, profiles, and nano-polymer materials are used as replacement materials for popular LED display boxes, each of which has its own advantages:

    Carbon fiber LED display box:

    The design is ultra-thin, light in weight, good in strength, and has a tensile strength of 1.5 tons, and the weight per square meter is only 9.4kg. Moreover, the fully modular design makes maintenance more convenient. The 45 degree right angle side can realize 90 degree splicing installation of the screen body, and the non-transparent back board is provided, which is suitable for large-area installation in sports fields and outdoor advertising lights.

    Magnesium alloy LED display box:

    The density is small (about 1.8g/cm3 magnesium alloy), the specific strength is high, the specific modulus is larger than the elastic modulus, the heat dissipation is good, the shock absorption is good, the impact load capacity is larger than that of the aluminum alloy, and the corrosion resistance to organic matter and alkali is good. Magnesium alloy is used as an LED display box with the advantages of high cost performance, easy installation, and excellent heat dissipation.

    Nano polymer material LED display box:

    It has the characteristics of shockproof and anti-fall, and the weight is much lighter than the conventional box. The weight of a single box is only 4.5KG and 5.1KG. The loading and unloading is simple, the handling is light, the truss is low in cost, and the transportation cost is low.

    Throughout their view, their greatest common advantage is nothing more than light, thin and easy to install. This is a future development trend, and it is clear that the “iron box” is no longer suitable for this trend, and it is doomed to be replaced by better new materials in the future. However, it really needs a long and continuous process to be cleared out of the market, so for now it has the advantages of low cost and short production cycle (this is where the new materials need to break through). Completely abandoned by the market.


    As outdoor fixed-mounted LED displays are increasingly favored by customers, the customer's product requirements have also changed. When choosing products, they are more inclined to choose products that can meet their more diverse and personalized needs. Just like the development of alternative materials for LED display cabinets, although there are so many new materials, many people in the industry continue to explore other new cabinet materials with higher reliability and higher cost performance. Screen companies must pay attention to and seize new opportunities in real-time – actively research and develop new products, in order to continuously improve and open up new markets.