How to choose high quality indoor led display
Release time:
2024-05-19
The most critical component of the LED display is the LED device. The general selection criteria are: brightness, low working voltage, low power consumption, large-scale, long life, impact resistance and stable performance. Secondly, we should also refer:
1. Whether there is mosaic or dead spot
Mosaic refers to the small four squares that are often bright or black on the LED display, which is the phenomenon of module necrosis. The number of dead spots is mainly determined by the quality of the LED chip, and the LED screen failure rate of Detai Optoelectronics reaches one millionth.
2. Inefficiency
Refers to the failure rate of LED display screen assembly to aging 72 hours before shipment should not be higher than 3/10000 (refers to the failure caused by the LED device itself), and the LED screen of Detai Optoelectronics ensures that the failure point is zero when leaving the factory.
3. White balance effect
White balance effect is one of the most important indicators of LED display. In color science, pure white will only be displayed when the ratio of red, green and blue is 1:4.6:0.16. If there is a little deviation in the actual ratio, there will be a deviation in white balance. The quality of white balance is mainly determined by LED chips. LED chips also have an influence on the reducibility of colors. The LED screen of Detai Optoelectronics uses high-quality chips and has good white balance effect.
4. Flatness
The surface flatness of the LED display screen should be within 0 ≤a≤ 1mm to ensure that the display image does not distort. Local protrusions or recesses will cause dead corners in the visual angle of the display screen. The flatness of the LED screen of Detai Optoelectronics is less than 0.01mm.
5. Brightness and visual angle
The brightness of the indoor full-color LED display screen should be above 800cd/m2, and the brightness of the outdoor full-color LED display screen should be above 1500cd/m2, so as to ensure the normal display of the LED display screen, otherwise the brightness will be too low to see the displayed image. If the environment is very bright, please give preference to LED or rear projection. The level of brightness is mainly determined by the quality of the LED die. The LED screen of Detai Optoelectronics guarantees the brightness of 1200cd/㎡.
6. Visual Angle
The size of the visual angle directly determines the amount of visible area space of the LED display, so the bigger the better. The size of the viewing angle is mainly determined by the LED chip. The LED screen of Detai Optoelectronics can guarantee a maximum viewing angle of 170 °.
7.LED display appearance
The appearance of the LED display is the most intuitive, and the most primitive is the most preliminary evaluation of the product quality. The appearance quality can reflect the quality of the production process and materials of the manufacturer. The LED screen of Detai Optoelectronics adopts full die-casting aluminum box body, which has a novel and reliable appearance.
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