source:other news release time:2023-04-13 Hits: Popular:led screen wholesaler
1. Flat degree
The surface flatness of the LED display should be within 0 ≤A ≤ 1mm to ensure that the display image does not distort. Local raised or concave entry will cause dead ends of the visible angle of the display screen. The quality of the flatness is mainly determined by three aspects: ① production technology and materials; ② site steel engineering construction; ③ display screen installation team installation construction quality decision.
2. Brightness and visual angle
The brightness of the indoor full -color LED display is above 800cd/m2, and the brightness of the outdoor full -color LED display should be more than 1500 CD/m2 to ensure the normal display of the LED display. The image displayed. The level of brightness is mainly determined by the quality of the LED tube core.
The size of the LED display that determines the size of the viewing angle is the larger of the viewing area space, so the bigger the better. The size of the visual angle is mainly determined by the LED chip.
3. White balance effect
The white balance effect is one of the most important indicators of the LED display. The proportion of three primary colors of red and green and blue in color is 1: 4.6: 0.16. Pure white will be displayed. If the actual proportion is a bit deviation, there will be a white balance. Generally, pay attention to whether the white is blue, yellowish yellow, and yellowish yellow, and yellowish yellow. Green phenomenon. The quality of white balance is mainly determined by the LED chip, and the reduction of LED chips has also effectively affecting color.
4. Color reduction
The reducing nature of color refers to the reduction of the LED display to color, that is, the color displayed by the LED display screen should be highly consistent with the color of the player, so as to ensure the real sense of the image.
5. There is no mosaic, dead point phenomenon
Mosaic refers to a small four -square block that appears on the LED display or the usual black, which is necrotic in the module. The lights are not correct; ③ the sealing glue process is not qualified. The death point refers to a single point that often appears on the LED display. The number of death points is mainly determined by the quality of the LED chip.
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