1. Adjust the brightness of the outdoor LED full-color display according to the environment.
The main purpose of brightness adjustment is to adjust the brightness of the entire LED screen according to the intensity of ambient light, so that it looks clear and bright without being dazzling. Because the ratio of the brightness of the brightest day to the darkest brightness of a sunny day can reach 30,000 to 1. The corresponding brightness settings also vary widely. But there is currently no configuration for brightness specifications. Therefore, the user should adjust the brightness of the LED electronic display in a timely manner according to changes in the environment.
2. Standardize the blue output of the outdoor LED full-color display.
Because brightness is a parameter based on the perception characteristics of the human eye, the human eye has different light perception capabilities of different wavelengths. Therefore, only brightness cannot accurately reflect the intensity of light, but using irradiance as a measure of visible light safety energy can more accurately reflect The dose of light that affects the eye. The measurement value of the irradiance metering device, rather than the eye's perception of the brightness of blue light, should be used as the basis for judging whether the blue light output intensity is harmful to the eye. Outdoor LED display manufacturers and users should reduce the blue light output component of the LED display under the conditions of display.
3. Standardize the light distribution and direction of the LED full-color display.
Users should try their best to consider the rationality of the light distribution of the LED electronic display, so that the light energy output by the LED is evenly distributed in all directions within the viewing angle range, so as to avoid the strong light of the small viewing angle LED directly hitting the human eye. At the same time, the direction and range of LED light irradiation should be limited to reduce the pollution of the LED display to the surrounding environment.
4. Standardize the output frequency of the full color screen.
LED display manufacturers should design the display in strict accordance with the requirements of the specification, and the output frequency of the display screen should meet the requirements of the specification to avoid discomfort to the viewer due to the flickering of the screen.
5. Express safety measures in the user manual.
LED display manufacturers should indicate the precautions in the LED display user manual, explain the correct adjustment method of the brightness of the full-color screen, and the possible harm to the human eye caused by looking directly at the LED display for a long time. When the automatic brightness adjustment equipment fails, manual adjustment should be adopted or the LED display should be turned off. When encountering a dazzling LED display in a dark environment, the self-protection measures should be, do not look directly at the LED electronic display for a long time or carefully identify the picture details on the LED electronic display, and try to avoid the LED being focused by the eyes. Bright spots form, which burns the retina.
6. Take protective measures during the design and production of the full-color LED display.
Design and production personnel will come into contact with LED displays more frequently than users. In the design and production process, it is necessary to test the overload operation state of the LED. Therefore, designers and production personnel who are easily exposed to strong LED light should pay more attention to and take special protective measures in the design and production process of LED displays. During the production and testing of outdoor high-brightness LED displays, relevant staff should wear black sunglasses with a brightness attenuation of 4-8 times, so that they can view the details of the LED display at close range. In the process of indoor LED display production and testing, relevant staff must wear black sunglasses with a brightness attenuation of 2-4 times. Especially the staff who test the LED display in the dark environment should pay more attention to safety protection. They must wear black sunglasses before they can look directly.