As outdoor LED display screens are increasingly favored by customers, the customer's product needs have also changed, and they are more likely to choose products that meet their more diverse and personalized needs when selecting products. Just like the development of alternative materials for LED display cabinets, although there have been so many new materials, there are still many people in the industry who continue to explore other new cabinet materials with higher reliability and higher cost performance. Screen enterprises must pay attention to and seize new opportunities for development in real time – actively research and develop new products so that they can continuously make progress and continue to open new markets.
First, the main role of the box
1.1 Fixed function: For display modules such as internal fixation module/cell board, power supply, etc., all components must be fixed inside the cabinet to facilitate the connection of the entire display screen, and the external fixed frame structure or steel structure.
2.1 Protection: The protection of the inside of the electronic components from the external environment, can protect components, has a good protective effect.
Second, the classification of the box
1, the box's material classification: general box is iron box, high-end can use aluminum alloy, stainless steel, carbon fiber, magnesium alloy and nano-polymer materials box.
2, the use of the classification box: The main classification methods and the use of the environment, from the waterproof performance is divided into waterproof box, simple box; from the installation site and maintenance and display performance can be divided into forward box, double-sided Box, curved box and so on.
Market mainstream die cast aluminum box pictures
Third, the introduction of the main box
1. Arc LED display cabinet
The curved LED enclosure is a specially designed led display enclosure for various curved screens. The classification of the arc box is divided into two kinds: outer arc shape and inner arc shape. Generally, the arc shape of the box body is a box structure, while the module and unit plate are common materials, and the curved steel structure is added. Designed to form a variety of curved displays.
2ã€Features of front-turn LED display cabinet and front maintenance display
In special occasions, it is necessary to use the LED display screen box to make the front maintenance display screen and the front door display screen. Its main features are that the entire box body is made by opening the front and rear halves through the connection.
Box structure: The whole box is like a hinge that opens from bottom to top. After opening, the components inside the box can be maintained and maintained. After the screen is installed or repaired, the outside surface is put down and the button is locked. The box is waterproof.
Adapt to the occasion: Suitable for outdoor LED display, using a row of box installation, no maintenance space behind the situation.
Advantages and Disadvantages: The advantage is to facilitate the maintenance and maintenance of the LED screen body without the maintenance space behind it; the disadvantage is that the box body has a high cost, and when the LED display screen is produced, the two boxes are used more than the ordinary box body. Several times more power lines and cables affect the efficiency of communication and power supply, increasing production costs.
3, double-sided LED display cabinet structure
Double-sided LED display cabinets are also called LED double-sided cabinets, and are mainly applied to electronic displays that need to be displayed on both sides.
Box structure: two-sided display The display box structure is equivalent to two front maintenance display screens connected back to back, and the two-sided box body also belongs to a special forward-turning structure box. The middle part belongs to a fixed structure and the two sides are connected with the upper half of the middle part. During maintenance, one side of the box that needs repair or maintenance can be opened upwards.
The use of features: 1, the screen area can not be too large, generally a box body a display; 2, the main use of lifting installation; 3, both sides of the display can share a led control card, the control card uses a partition control card In general, the two sides are equal in area, and the display contents are the same. It is only necessary to divide the contents into the same two parts in the software.
Fourth, LED display cabinet development trend
In recent years, the small-pitch technology has used its superior display effect and can better integrate emerging technologies such as 3D, VR/AR, and interactive to express creative ideas and actively entered the field of outdoor LED display screens. A large number of emerging markets, such as gas station billboards, electronic bulletin boards, bus stations, and other market segments that originally could not use small gaps, can now be widely used.
However, with the rapid development of small-pitch LED displays in the outdoor fixed-installation field, which has brought about tremendous changes and improvements in the engineering display industry, we have also discovered some changes that have come: for example, the iron-based molds on the market The group's shortcomings such as heavy weight, poor accuracy, and insufficient strength have not kept pace with the development of small pitches in LED displays, and some new types of module materials are increasingly receiving market attention.
This is where the most demanding market now is "die-cast aluminum." After several years of development, the weight of the die-casting aluminum box has become lighter, the structure has become more and more reasonable, and the accuracy is also higher. Basically, it can realize seamless splicing. The latest die-cast aluminum display screen is not only a simple upgrade of the traditional display cabinet, but also has been fully optimized and updated from the aspects of structure and performance. It is a compact indoor rental display with patented production. The cabinet has a high precision of splicing. Installation and maintenance are extremely convenient.
In addition to die-casting aluminum, there are many new materials that have begun to receive attention in the industry. For example, carbon fiber, magnesium alloys, profiles, nano-macromolecule materials, etc. are used as replacement materials for popular LED display boxes. They all have different advantages:
Carbon fiber LED display cabinet:
The design is ultra-thin, lightweight, strong, and has a pull resistance of 1.5 tons. The weight per square meter is only 9.4 kg. And the use of a fully modular design, maintenance and more convenient, 45-degree right-angle side can achieve 90-degree mosaic screen installation, while providing a non-transparent backplane, suitable for stadiums, outdoor advertising lights in a large area of ​​installation.
Magnesium alloy LED display cabinet:
Low density (about 1.8g/cm3 magnesium alloy), high specific strength, large elastic modulus, good heat dissipation, good shock absorption, greater ability to withstand impact loads than aluminum alloys, and good resistance to organics and alkalis. Magnesium alloys are used as LED display cabinets with the advantages of cost-effective, easy installation, and excellent heat dissipation.
Nano polymer material LED display cabinet:
With the characteristics of shock and drop resistance, while the weight is much lighter than the conventional box, the weight of a single box is only 4.5KG, 5.1KG. Easy handling, light handling, low truss costs, and low transportation costs.
Throughout, their greatest commonality is nothing but light, thin, and easy to install. This is a future development trend, and it is clear that the "iron box" is no longer adapting to this trend. The future is replaced by better new materials. But it really needs a long and continuous process to be cleared out of the market, so for the moment it has the advantages of low cost and short production cycle (this is where new materials need to be broken). Completely abandoned by the market.
Bagasse Pulp Making System
The lack of paper making raw materials is a common problem, the use of seasonal growth plants or wild trees etc for the paper pulp is an effective solution.However, using this material pulping will produce a lot of black liquor containing inorganic compounds, how can get more fiber pulp, low investment to processing black liquor which can let it reach the water recycling or reach the discharge standard of environmental protection, it has been a worldwide problem all the time.
