What Are The Basic Technical Indicators Of LED Display?
What are the basic technical indicators of LED display?
In recent years, the LED display has shined in various fields. The superior performance of the LED display has made it have good value in different fields and scenes. More and more people are gradually familiar with and use the LED display. The emergence of LED display broad markets will inevitably create a large number of enterprises. The technical differences of each LED display enterprise are still very large, so how to judge the quality of the display screen, so as to choose the high cost -effective LED display that suits you. We need to master the basic technical indicators of the LED display.
1. Brightness indicator
When buying the LED display, you must determine the use scenario in advance. Whether it is installed outdoors or indoors. Generally speaking, the outdoor light source is strong. For outdoor light sources, the LED display has high brightness requirements and requires 5000cd/m² or more. The indoor light is weak, LED is LED The display screen is too bright, which causes bad feelings such as visual fatigue and eye fatigue. The LED display indoor scene is only 1800cd/m². To clarify this point, you will not buy it wrongly, resulting in waste of money, and the experience is not good.
2. White balance indicator
The white balance effect is one of the important indicators of the display. Everyone is familiar with the term Bai balance, but many people don't know much about the true principles. The LED display lamp bead packaging uses a three -in -one packaging, that is, a lamp bead is actually integrated together with three lamp beads of red, green, and blue. Different colors are achieved according to the three primary colors. The proportion of red, green, and blue primary colors will only be displayed at 1: 4.6: 0.16. The quality of white balance is mainly determined by the display control system, and the tube core will also affect the oxidation of the color.
3. Gray indicator
The grayness is related to brightness. It refers to the grading performance of the brightness and dark level of brightness, that is, the so -called color order or gray level. The larger the grading, if the display screen can be sensitive, the LED chip controls the performance of the LED chip to control the sensitivity of the sensitivity, and the gray level grading Usually determine the gorgeous level of color. Generally speaking, the larger the gray level, the richer the color of the display, the more gorgeous the viewing effect.
4. Flatness indicator
The flatness is the overall ups and downs of the screen. When the LED display is touched, it is uneven when the LED display is uneven. A good screen. Generally speaking, the smaller the flatness, the smoother the screen display, the more uniform color, the better the viewing effect. On the contrary, the picture is easy to distort and the viewing effect is poor.
5. Refresh the frequency indicator
The refreshing frequency refers to the number of times the screen is refreshed per second. Generally speaking, the larger the LED display refresh the frequency, the smoother the screen display, and the lower the refresh frequency. It will affect the eyes and visual fatigue, making people feel uncomfortable. Especially playing sports games and the like. LED display device, which is particularly important to refresh the frequency, directly affects the game experience. Therefore, when choosing, try to choose the refresh rate higher than 1000Hz. If the refresh frequency is higher than 3000Hz, it can be called an efficient LED display, which is better.
