With the development of society and the improvement of people's needs, LED displays have gradually appeared in the public eye and been recognized. From LED displays with red and green dual primary colors to full-color displays, from only traditional displays Professional engineering companies have participated in the project and now many companies can participate. The development of LED display screens has formed a certain industrial scale and form. With the popularization and promotion of the Internet, LED display screens have more application space in the entire informatization process. It has also continued to expand and shows a good development trend.

Outdoor LED display

Outdoor LED display is also called outdoor LED display. As a type of LED display, it has the characteristics of high brightness, large viewing angle, rainproof, waterproof and windproof functions. It is widely used in shopping malls, airports, hospitals and schools. and other places, with media display, information release, traffic signals, creative display and other purposes.

Choice of outdoor LED displays

01. Basic parameter selection

The colors of outdoor LED displays are mainly divided into three types, namely dual primary color, single primary color and full color. Among them, the single-primary color display screen is mainly used to display text, and the dual-primary color display screen is mainly used to display graphics and text. Its pixels are composed of red and green LED tubes, and can present three colors of red, green, and yellow. color. The last item of the full-color LED display is that it can not only display graphics and text, but also display videos. Each pixel is composed of three types of red, green, and blue LED tubes, which has richer display colors. At the same time , making the display screen more delicate.

In addition to the choice of color, several aspects such as the distance between the screen and the viewer, the brightness of the screen, and energy consumption must also be considered.

02. Selection of component materials

(1) Lamp beads.

Lamp beads can directly affect a series of issues such as the viewing angle, brightness, failure rate, antistatic ability, life decay characteristics and energy consumption of the LED display screen.

The viewing angle of the LED display depends on the viewing angle of the LED lamp beads. LED displays with higher installation have higher vertical viewing angles. The larger the viewing angle, the smaller the brightness. The higher the brightness of the LED lamp beads, the larger the current margin, and the more power-saving and stable the LED display screen is. This is opposite to the viewing angle. Therefore, for LED displays with different point spacing Screen, you need to find the corresponding balance point in brightness and viewing angle. Failure caused by LED lamp beads will cause the overall visual effect of the LED display. Choosing good and suitable lamp beads will have a great impact on the life of the entire screen and subsequent attenuation, anti-static ability, and screen size. Influence.

(2) Power supply.

Since it is an outdoor LED display, when choosing a power supply, you must consider the influence of outdoor weather and on-site related circuit conditions due to the large number of display screens. When selecting a power supply for an LED display, you should try to use a switching power supply and make sure that the power supply is waterproof and sunproof. function to ensure the safety and stability of the entire screen after it is lit. Due to the properties of LED display products, instantaneous changes in current are usually generated when playing videos or images, which places stricter requirements on LED power supplies. Usually, in order to ensure the normal broadcast of the display screen, a certain margin needs to be reserved for the power supply product. Generally speaking, the more margin reserved, the more stable the performance of the power supply product and the longer its life. However, this increases the cost of the power supply product, and too much margin reservation can easily lead to waste. At present, the LED display power supply in the industry generally reserves 20%-30% margin. In order to extend the life of the power supply, it is recommended to choose a model with 30% more output power rating. For example, if the system requires a 100W power supply, it is recommended to choose a model with an output power rating greater than 130W. By analogy, this can effectively extend the life of the power supply.