Selection and installation of full-color LED large screen

Selection and installation of full-color LED large screens. Full-color LED large screens have entered a period of rapid development. Many people can think of using LED large screens to play as long as they are outdoor and indoor publicity. Rapid development will inevitably bring a series of problems, first is the selection of full-color LED large screen materials, secondly is the process, and thirdly is the details of the LED large screen installation process such as waterproof, flatness, angle and so on. How should I choose a full-color LED large screen product suitable for my project? Selection of basic parameters of LED large screen: 1. Dot pitch When selecting a full-color LED large screen, the dot pitch of the display should be selected according to the viewing distance of the audience. Full-color LED Large screens are generally divided into P4, P6, P8, P10, P16 and so on according to the dot pitch.

Generally, it can be estimated according to the simplified formula "best viewing distance = dot spacing/(0.3~0.8)". For example, with a P16 display, the dot spacing is 16mm, and the best viewing distance is 20-54 meters. 2. Types According to the color of the LEDs used, LED large screens can be divided into single-color, double-color and full-color screens. The single-color LED large screen can be used as a text display, and each pixel uses a single-color LED, most of which are red; the dual-primary LED large screen can be used as a graphic display, and each pixel is composed of red and green LED tubes. It can be displayed in three colors of red, green and yellow; the full-color LED large screen can be used as a video display, and each pixel is composed of three LED tubes of red, green and blue, and the display color is delicate.

3. Grayscale is an important index to measure the display effect of full-color LED large screen. The grayscale is determined by the number of digits of analog-to-digital conversion when supported by other supporting hardware. The mainstream ones are 8-bit, 10-bit and 16-bit. 8-bit analog-to-digital conversion corresponds to 256 kinds of brightness changes, that is, 256 gray levels, and there are 256×256×256=16777216 kinds of color changes, which are commonly referred to as 16M colors; 10-bit analog-to-digital conversion corresponds to 1024 kinds of brightness changes, that is, 1024 There are 1024 × 1024 × 1024 = 1073741824 color changes in total, which is commonly referred to as 1.07 billion colors. The higher the gray level, the better the display effect. If you want to use outdoor billboards well, the installation and debugging link is essential. For technical construction personnel, knowing the skills of outdoor construction and maintenance of LED large screens will effectively promote the promotion of business advertisements and information dissemination, and is also a must for technical construction personnel. Familiar, specifically speaking, there are four links in the installation of outdoor billboard LED large screens: field survey, equipment construction, installation, commissioning and use.

First of all, we need to conduct on-the-spot investigation according to the actual situation. Specifically, before installing the full-color LED large screen, we should conduct a new and unified test for the specific environment, topography, luminous radiation range, brightness acceptance and other parameters. The smooth installation requires that before lifting and installing, a unified lifting plan must be implemented for the commanding personnel to ensure that the equipment can be used normally and stably. Different situations are treated differently, so as to adopt a more appropriate method. Secondly, after the specific plan is determined according to the field survey results, we will proceed with the construction of LED equipment. For the construction of some outdoor LED billboards, it is necessary to distinguish between the wall LED large screen, the hanging type LED large screen and the roof type LED large screen.

During the actual installation, it should be hoisted in sections with a crane and hoist according to the distance and height, and at the same time ensure that the above personnel cooperate with each other. There is a better installation and use process for LED large screens working at heights. During the construction process, safety and refined operation are the first requirements. Again, after the construction is completed, in order to achieve the best communication effect, we need to debug the luminous radiation range. Because the radiation range is different, the viewing angle of the LED large screen will be different. It is necessary to carry out full-color LED display according to the field acceptance ability and everyone's usual viewing angle range. The large screen is fixed and installed to ensure that you can see normal, balanced brightness images and subtitle information from a distance from every angle. The combination of large viewing angle and appropriate brightness can maximize the benefits.

Finally, in order to deliver it smoothly, we need to carry out follow-up inspections and maintenance follow-up inspections, including many areas, such as LED large screen waterproof, heat dissipation layer, LED surface waterproof coating, rain protection area on the display screen, heat dissipation space on both sides, power supply line Wait, these basic parts and components constitute the entire large graphic LED screen with good stability. Of course, the later technical maintenance is also very important. We need to carry out unified management and maintenance for these parts. When the product is rusted, unstable, or damaged, it needs to be replaced in time to ensure the safe use of the entire LED display. .