We often see many large advertising screens of various shapes and colors. They are the LED display that we are familiar with.
LED display is a display composed of LED devices in an array. There are many ways to arrange the array, which can be rectangular, circular or diamond. LED screen manufacturers can design and customize according to different customer needs and adopt different array arrangement forms.
Its working principle is to convert electrical signals into optical signals and display images or text by controlling the brightness and color of LEDs. Specifically, LED display consists of many LEDs, each of which is a semiconductor device with the characteristic of emitting light when the forward voltage is applied.
These LEDs are organized into a matrix or determinant, and each LED has an independent control circuit, which can control the brightness and color of the LED by controlling the switch state of the control circuit. When an image or text needs to be displayed, the computer converts the image or text into a digital signal and sends it to the control circuit of the LED display.
The control circuit of the LED display receives the video connection signal from the computer, and then drives the LED device to emit light and produce a picture. Different types of display screens have different functions.
What are the common types of LED display?
- According to the color, there are monochrome, dual-color and full-color screens. Among them, the full-color screen has the best display effect.
- According to the use environment, it can be divided into indoor screens, outdoor screens and semi-outdoor screens.
- According to the control system, it can be divided into synchronous control systems and asynchronous control systems.
- According to the use function, it can be divided into text screens, advertising screens and graphic screens.
Among several common types, the function of full-color outdoor screens is particularly outstanding.
The outdoor full-color LED display screen has clearer picture quality and brighter colors, which can bring consumers a stronger impact and awaken consumers’ desire to buy in crowded shopping malls or intersections.
LED display have the advantages of wide range of use, bright colors, long life, high brightness and good stability. In addition, LED display are highly adaptable and can still work normally even in storms and scorching sun. They are widely used in indoor and outdoor billboards, stadiums, stage backgrounds, traffic signals, information release and other fields. Therefore, LED display are very popular among customers in the market.
