There are several key technologies for LED electronic display screens? No matter day or night, sunny or rainy days, LED electronic display screens can allow viewers to see the display content clearly and meet people's needs for display systems. A good LED display requires very good performance in design and performance. How to choose a suitable LED electronic display requires understanding and consideration of the following key technologies.

　　 Several key technologies of LED electronic display

　　1. Image acquisition technology

　　 The principle of displaying images on the LED electronic display is mainly to convert digital signals into image signals and present them through the light-emitting system. The traditional method is to use a video capture card combined with a VGA card to realize the display function. The function of the video capture card is mainly to capture video images, and obtain the index address of the line frequency, field frequency, and pixel point with the help of VGA. The way to obtain the digital signal is mainly by copying the color look-up table. Generally, software can be used for real-time replication or hardware stealing, which is more efficient than hardware stealing. However, the traditional method has compatibility problems with VGA, and this leads to undesirable conditions such as blurred edges and poor image quality, which ultimately results in damage to the image quality of electronic displays.

　　 2. Real image color reproduction

　　 The principle of the visual performance of the LED electronic display is similar to that of a TV. The effective combination of red, green and blue can achieve the reproduction of different colors of the image. The purity of the three colors of red, green and blue will directly affect the color reproduction of the image. It should be noted that the reproduction of the image is not a random combination of the three colors of red, green and blue, and certain prerequisites are required. First, the light intensity ratio of the three colors of red, green and blue should be close to 3:6:1; secondly, people are visually sensitive to red compared to the other two colors, so red needs to be evenly distributed in the display space. ; Third, because people’s vision responds to the different nonlinear curves of the red, green and blue light intensities, it is necessary to correct the light emitted from the inside of the TV with the white light of different light intensities.