How to distinguish the quality of a full-color LED display _Full-color LED display manufacturer|Huaz

How to distinguish the quality of a full-color LED display? _Full-color LED display manufacturer|Huaze Optoelectronics

by:XY Screens     2021-09-09
Nowadays, full-color LED displays are used more and more widely in real advertising and product display, so how to distinguish the quality of full-color LED displays? The quality of a full-color LED display can be signed from the following aspects: 1. The flatness of the full-color LED display: the surface flatness of the display should be within ±1mm to ensure that the displayed image is not distorted. Local protrusions or recesses will cause a blind spot in the viewing angle of the display. The quality of flatness is mainly determined by the production process. 2. Full-color LED display brightness and viewing angle: the brightness of the indoor full-color screen must be above 800cd/m2, and the brightness of the outdoor full-color screen must be above 1500 cd/m2 to ensure the normal operation of the display, otherwise it will be due to the brightness It is too low to see the displayed image clearly. The brightness is mainly determined by the quality of the LED die.   The size of the viewing angle directly determines the audience of the display screen, so the bigger the better. The size of the viewing angle is mainly determined by the packaging method of the die. 3. Full-color LED display white balance effect: White balance effect is one of the most important indicators of the display screen. In color science, when the ratio of the three primary colors of red, green and blue is 1:4.6:0.16, pure white will be displayed. If the actual ratio is a little different, there will be a deviation of white balance. Generally, pay attention to whether the white is blue or yellow. Green phenomenon. The quality of the white balance is mainly determined by the control system of the display, and the die also has an impact on the color reproduction. 4. The color reproducibility of the full-color LED display screen: The color reproducibility refers to the color reducibility of the display screen, which means that the color displayed on the display screen must be highly consistent with the color of the playback source, so as to ensure the realism of the image. 5. Whether the full-color LED display has mosaic or dead spots: mosaic refers to the small four squares that are always bright or black that appear on the display, which is the phenomenon of module necrosis. The main reason is the connector used in the display. The quality is not enough. Dead point refers to a single point that is always bright or black that appears on the display. The number of dead points is mainly determined by the quality of the die. 6. Whether the full-color LED display has color blocks: Color blocks refer to the obvious color difference between adjacent modules. The color transition is based on the module. The color block phenomenon is mainly caused by the poor control system, gray The degree level is not high, and the scanning frequency is low. Huaze Optoelectronics is a professional full-color LED display manufacturer in China. Users in need can contact our company or come to the company for inspection.
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