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Aug 05,2021| LED Knowledge
Outdoor LED advertising display has the characteristics of seamless splicing and flexible installation. Compared with traditional products, it is also lighter in weight, and the colors are clearer and fuller, allowing everyone to see more pleasing video images.
Three evaluation standards for outdoor LED advertising displays:
Look at the flatness of the LED advertising screen: In order to ensure that the image of the LED advertising screen will not be distorted, the surface flatness of the outdoor LED advertising screen must be kept within ±1mm. If this requirement is not met, and there will be local unevenness This phenomenon will lead to the problem of blind angles in the viewing angle of outdoor LED advertising screens when playing videos. Therefore, it can be said that flatness is a major factor in judging high-quality outdoor LED advertising screens.
Look at the brightness of the LED advertising screen: Under normal circumstances, the brightness of the outdoor LED advertising screen should be above 1500cd/m2 to ensure normal display work, otherwise it will not be able to clearly display the image content due to insufficient brightness. Therefore, if you want to buy an outdoor LED advertising screen with a good display effect, it depends on the quality of its LED lamp beads and its brightness parameters.
Look at the white balance of the LED advertising screen: the ratio of the three primary colors of red, green and blue is 1:4.6:0.16. The screen will only display the purest white. Therefore, if the LED advertising produced by the outdoor LED advertising screen manufacturer A slight deviation in the ratio of the three primary colors of the screen will result in a deviation in the white balance, which will affect the display quality of the outdoor LED advertising screen, so it is also very important to look at the white balance when purchasing.
Several elements that a good quality outdoor LED display should have:
1. High-definition display effect:
Outdoor LED display screens, as the main carrier of video advertising, need to have high-definition display effects. This includes high resolution, high brightness, high contrast, etc. High resolution ensures that high-quality advertising pictures can be presented well; high brightness ensures that the picture can be clearly displayed under direct sunlight; high contrast is the color of the picture. Strong guarantee of uniformity and fine image.
2. Low energy consumption, energy saving and emission reduction:
Outdoor LED displays must respond to government calls. Energy conservation and emission reduction must be implemented as an important standard in manufacturing, including product power consumption, product scattering performance, and the amount of steel required for product installation.
3. Large viewing angle and wide viewing area:
The main task of outdoor LED display is to do advertising and image publicity. Therefore, allowing more audiences to see the screen is the primary goal of outdoor LED display. It adopts a large viewing angle design to cover the viewing angle to the largest extent.
4. High protection level:
Since LED displays are used outdoors, the weather environment must be taken into consideration. Outdoor full-color LED displays generally have to reach the IP67 protection level to be able to fully adapt to all kinds of bad weather and ensure that outdoor LED displays have strong weather resistance. It can be used for a long time to ensure that the customer's profit reaches the maximum.
Factors affecting the quality of outdoor LED display:
1. Driver IC:
Driver IC is the main factor that affects the price of LED displays, as well as an important factor that affects the life and quality of the display. Better drivers are more expensive.
In terms of light-emitting chips, the sources of imports are: Japan, Taiwan, and the United States. Currently, there are chips from Taiwan and inland. Chips from Japan and the United States are relatively expensive because they have always mastered core technologies. Compared with the performance of chips from Japan and the United States, Taiwan and the mainland have a certain gap in performance, and their prices are relatively cheap.
4. The main supporting system of the display screen:
5. Installation factors:
Due to the installation method, screen size, frame structure material selection, and construction environment factors, outdoor LED displays are more expensive than indoor LED displays.
6. Other factors:
Brand effect, transportation method, tax rate, etc.