source:other news release time:2022-12-29 Hits: Popular:led screen wholesaler
1. Flatness of full-color display screen
The surface flatness of LED display screen shall be within ± 1mm to ensure that the displayed image is not distorted. Local protrusions or recesses will cause dead corners of the display. The flatness is mainly determined by the production process.
2. Brightness of full-color led display
The brightness of indoor full-color screen shall be more than 800cd/m2, and the brightness of outdoor full-color screen shall be more than 1500cd/m2 to ensure the normal operation of display screen. Otherwise, the brightness will be too low to see the displayed image clearly. The brightness is mainly determined by the LED core.
The size of the viewing angle directly determines the audience of the display screen, so the larger the better. The visual angle is mainly determined by the packaging method of the tube core.
3. White balance effect of led full-color display
White balance effect The white balance effect is one of the most important indicators of the display screen. In chromatics, when the ratio of red, green and blue primary colors is 1:4.6:0.16, pure white will be displayed. If there is a little deviation in the actual ratio, white balance deviation will occur. Generally, attention should be paid to whether white is blue or yellow green. The quality of the white balance is mainly determined by the control system of the display screen, and the tube core also affects the color reversibility.
4. Color of led display screen
Color restoration refers to the color restoration of the display screen, that is, the color of the display screen should be highly consistent with the color of the playback source to ensure the authenticity of the image.
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