Analysis of the difference between LED display and LED backlight part one

LED screens absolutely use LED backlights, and LED displays are also called electronic displays or floating character screens. It is composed of LED dot matrix and LEDPC panel, through the red, blue, white, green LED lights to display text, pictures, animation, video, content. Different adjustments can be made according to the needs of different occasions. For example, the flow of calligraphy and painting on general billboards is to make an animation through flash, save it in a memory card on the display, and then display it through technical methods. Different components need to be replaced at any time, and each part of the assembly is a display device with a modular structure. The traditional LED display screen is usually composed of a display module, a control system and a power supply system.

The luminous color and luminous efficiency of the LED are related to the materials and processes used to make the LED. The light bulbs are all blue at the beginning, but phosphors are added at the back. According to the different needs of users, different light colors can be adjusted and widely used. There are four kinds of red, green, blue and yellow. Due to the low working voltage of the custom LED display module, it can actively emit light and have a certain brightness, and the brightness can be adjusted by voltage. It is also resistant to shock, vibration and long life (100,000 hours), so there is no other display in large-scale display equipment. The method is comparable to the LED display method.

The display screen made by putting red and green LED chips or tubes together as a pixel is called a single-color or single-color screen and a three-color or dual-color screen. Put three kinds of red, green, and blue LED chips or tubes. The display screen that acts as a pixel together is called a three-color screen or a full-color screen. If there is only one color, it is called monochromatic. The pixel size of indoor LED screens is generally 2-16 mm. Several LED dies that can produce different primary colors are often packaged into one. The pixel size of outdoor LED screens is mostly 6 -31.5mm, each pixel is composed of a number of various monochromatic LEDs. The common finished product is called a pixel tube. The two-color pixel tube is generally composed of 2 red and 1 green, and the three-color pixel tube is composed of 1 red, 1 green and 1 blue.