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To judge whether an LED display is good or bad, you need to consider many factors, including display quality, reliability, performance and applicable environment.
The following are some key factors used to evaluate the quality of LED display screens:
- Flatness
The surface flatness of the display screen should be within ±1mm to ensure that the displayed image is not distorted, and local protrusions or recesses will cause dead angles in the viewing angle of the display screen. The quality of flatness is mainly determined by the production process.
- White balance effect
The white balance effect is one of the most important indicators of the display. In terms of 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 there is a slight deviation in the actual ratio, there will be a deviation in white balance. Generally, it is necessary to pay attention to whether the white is blue or yellowish. green phenomenon. The quality of the white balance is mainly determined by the control system of the display screen, and the die also affects the reproduction of the color.
- 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 1500cd/m2 to ensure the normal operation of the display screen, otherwise the displayed image will not be clear due to the low brightness. The brightness is mainly determined by the quality of the LED tube core. Here's what to know about nit brightness.
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.
- Resolution and pixel density:
Resolution determines the image clarity of the screen. Higher resolution generally means sharper images. The higher the pixel density, the sharper the image. High pixel density is especially important on large LED screens.
- Durability and reliability:
A high-quality LED display should have stable performance and be able to work continuously for a long time. The quality of the LED modules and other components, as well as the water and dust resistance of the housing are also important.
- Maintenance and service:
Considering long-term use, LED display screens that are easy to maintain and replace faulty parts are advantageous.
- User feedback and evaluation:
Check out user feedback and reviews to see what others have said and said about this LED display.