Cleaning And Selection Of LED Display

Before and after installation, the high definition LED display needs to be cleaned, which is a very important link. It can prevent the LED display screen from unclear phenomenon, mosaic phenomenon and color deviation phenomenon in the process of action. After a certain period of operation, there will be dust and other sundries affecting the display. Regular cleaning and maintenance of LED display can prolong the service life of LED display and improve the service quality of LED display. Therefore, the cleaning work of LED display screen is particularly important before and after screen installation.

LED Display

1. Cleaning of semi-finished LED module

When the LED module is only a semi-finished product without a kit, it needs to be cleaned with special washing water. After the LED module is stained with some washing water, brush it with a brush to accelerate the dissolution of rosin and the fall off of flux, and remove dust and impurities.

2. Cleaning of LED electronic display after installation

After the installation and display of LED electronic display screen for a period of time, there will be dust and impurity accumulation. In order not to affect the display effect of the display screen, it is necessary to clean the surface of LED display screen with clean water or water plus detergent and other cleaners. Pay attention to that only the surface can be cleaned, and special care should be taken when cleaning, and the cleaned water can not get to the back of LED module.

How to distinguish the quality of led video wall:

Led Video Wall

1. Flatness: the surface flatness of LED display screen shall be within ± 1mm to ensure that the display image will not be distorted, and local bulge or concave will cause dead angle of visual angle of display screen.

2. Brightness and visual angle: the brightness of indoor full-color screen shall be 800-2000cd / m2, and the brightness of outdoor full-color screen shall be 5000-7500cd / m2, so as to ensure the normal operation of the display screen, otherwise, the displayed image will not be seen clearly due to the low or high brightness. The brightness is mainly determined by the size of LED core crystal. The size of the visual angle directly determines the number of the screen audience, so the larger the angle, the better.

3. white balance effect: the white balance effect is one of the most important indicators of the display screen. When the proportion of the red, green and blue primary colors is 1:4.6:0.16 in color science, pure white will be displayed. If there is a little deviation in the actual proportion, the deviation of white balance will appear. Generally, it is necessary to pay attention to whether there is blue or yellow green phenomenon in white.

4. with or without color block color difference: color block refers to the obvious color difference between adjacent modules. The color transition is based on modules. The color block phenomenon is mainly caused by poor control system, low gray level and low scanning frequency.