Creative Round LED Screen SMD1515 RGB Naked Eye 3D LED Screen Waterproof

Indicators of LED display screens

In recent years, LED display screen has been brilliant in various fields. The superior performance of LED display screen makes it valuable in different fields and scenes. More and more people are gradually familiar with and use LED display screen. The emergence of a broad market for LED displays will inevitably create a large number of enterprises, and the technical differences among LED display enterprises are still large. How to judge the quality of the display screen, so as to choose a cost-effective LED display screen for ourselves, requires us to master the basic technical indicators of LED display screens.
1. Luminance index
When purchasing the LED display screen, you must determine the use scenario in advance, whether it is installed outdoors or indoors. Generally speaking, the outdoor light source is strong. For the outdoor light source, the LED display brightness is required to be high, requiring 5000 cd/m ² above; However, the indoor light is weak, and the LED display is too bright, which leads to visual fatigue, eye fatigue and other bad feelings. The indoor scene of LED display only needs 1800cd/m ² sure. If you know this clearly, you will not make a mistake, which will lead to waste of money and poor use experience.
2. White balance index
The white balance effect is one of the important indicators of the display screen. Everyone is familiar with the term white balance, but many people do not understand the real principle. LED display lamp beads are packed in a three in one package, that is, one lamp bead is actually a combination of red, green and blue lamp beads. According to the principle of three primary colors mixing, different colors are realized. When the ratio of red, green and blue is 1:4.6:0.16, it will show pure white. The quality of white balance is mainly determined by the display control system, and the tube core will also affect the oxidation of color.
3. Gray level indicator
Grayscale is related to brightness. It refers to the grading performance of brightness light and shade levels, namely the so-called color scale or gray scale. The larger the grading, if the LED display screen can be rendered sensitively, the higher the performance of LED chip control sensitivity is required. Grayscale grading usually determines the gorgeous level of color. Generally speaking, the larger the gray level is, the richer the color of the display screen will be, and the more gorgeous the viewing effect will be.
4. Flatness index
Flatness refers to the overall ups and downs of the screen. When touching the LED display screen, it is called "flatness" in the industry. Although it is easy for many people to ignore this when purchasing, the LED display screen with high flatness is a good screen. Generally speaking, the smaller the flatness, the smoother the screen display, the more uniform the color, and the better the viewing effect. On the contrary, the screen is prone to distortion and the viewing effect is poor.
5. Refresh frequency indicator
The refresh rate refers to the number of times the screen is refreshed per second. Generally speaking, the larger the refresh rate of LED display, the smoother the screen display, and the lower the refresh rate. Not only will there be ugly ripples, but also the feeling of the screen of the shadow card, which will affect the eyes and make people feel uncomfortable. Especially playing competitive games. The refresh rate of LED display devices is particularly important, which directly affects the game experience. Therefore, when selecting, try to choose the one with a refresh rate higher than 1000Hz. If the refresh rate is higher than 3000Hz, it can be called a high-performance LED display screen with better effect.