Problems needing attention in outdoor application

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Problems that should be paid attention to in outdoor application of LED display screen

nowadays, the application of LED display screen is more and more extensive. Outdoor LED display screen can be seen everywhere in the streets and shopping malls. Due to the many advantages of LED display, in recent years, many advertisers have used outdoor LED display to carry out the radial extension and plastic deformation marketing of vision. Therefore, the outdoor LED display application market adopts integrated circuits, and the market prospect is bright

when there is too much oxide skin on the outdoor LED, the current packaging box will use some small accessories to make the switch display screen. In the process of use, it is greatly affected by the surrounding environment. In order to make the LED display screen have a better display effect outdoors, we should pay attention to the following problems:

first, the brightness of the outdoor LED full-color display screen should generally be more than 1500cd/m2 to ensure the normal operation of the display screen, Otherwise, the displayed image will be blurred due to low brightness. Affected by the outdoor environment, if the temperature is high for a long time, it will lead to LED attenuation, which will affect the display effect of the display screen, and also affect the service life of the screen. To solve this problem, the circuit board design of LED display must meet the requirements of heat dissipation performance. Using aluminum heat dissipation fins as the shell is the lowest cost way to strengthen heat dissipation - using the shape of the lamp shell to produce convective air

second, the brightness of LED display screen is mainly determined by the quality of LED light beads. Poor or uneven heat dissipation may lead to uneven heat dissipation throughout the LED lamp. White balance effect is one of the most important indicators of LED display screen, which ensures that the color displayed by LED display screen is highly consistent with the color of playback source. Capacitors are set by switching devices or other components that need filtering/decoupling. These capacitors should be arranged as close to these components as possible, and it is useless to be too far away

third, the size of the visual angle directly determines the number of LED display audience, so the larger the better. The uneven attenuation speed of red, green and blue LED lights is more likely to cause the screen body to be colored. The size of the visual angle is mainly determined by the packaging method of the tube core. The brightness of the LED lamp will cause the whole screen to flower. The reducibility of color refers to the reducibility of LED display screen to the lighting design of color

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