What do you need to know about the brightness of LED display screens?
Introduction:
LED display brightness range
The brightness range of LED displays is suitable for a variety of common applications. Generally, a brightness range of 800-1200cd/m² is recommended for indoor displays. Outdoor LED displays, on the other hand, require higher brightness to cope with direct sunlight, with a brightness range of 5000-6000cd/m².
Higher brightness ensures better visibility, especially in direct sunlight or brightly lit environments. However, for displays, it is not better to adjust the brightness as high as possible, the balance between brightness should ensure visibility needs and energy efficiency.
For example, originally the maximum brightness of outdoor LED display in 6500cd/m2, but you want to adjust the brightness to 7000cd/m2, which has exceeded the range it can withstand. Just like a car tire capacity, if a tire can only be filled with 240kpa, but you are afraid of driving in the process of air leakage or worry about the air pressure is not enough, have to be filled with 280kpa. Then you may just drive, will not feel anything, but after driving for a long time, due to the tire can not withstand so much air pressure, there may be failures, and serious may appear the phenomenon of a flat tire occurs.
The negative impact of LED display brightness is too high
How much brightness of the LED display is appropriate, you can seek advice from the LED display manufacturer. In the case of no negative impact on the LED display can withstand the maximum brightness, and then adjusted. But it is not recommended to set the brightness as high as possible, if the brightness is set too high, it will bring a number of negative effects.
Impact on the service life of LED display
Because the brightness of the LED display is related to the LED diode, and the LED display has the physical brightness of the diode and the resistance value set before leaving the factory. So when the brightness is higher, the current of the LED diode is also higher. And the LED light will also work in this overload situation when in the long run, it will accelerate the service life of the LED light as well as the light attenuation.
Outdoor LED display power consumption
The higher the brightness of the LED display, the higher the LED module current, and thus the higher the power of the whole screen, then the greater the power consumption. Excessive brightness will significantly increase power consumption, and lead to higher operating costs. Outdoor LED display and indoor LED display comparison, it is clear that the former is more wasteful of electricity.
Causes damage to the human eyeball
The brightness of sunlight during the day is 2000cd, and the general brightness range of outdoor LED display is within 6000cd. Outdoor LED display above 6000cd brightness can bring light pollution and disturb the neighborhood and ecosystem. Especially at night, the brightness of the display is so bright that it will stimulate people’s eyeballs and make them unable to open their eyes.
Just like at night, your surroundings are very dark, suddenly there is a person with a flashlight in your eyes, then your eyes will not be able to open. LED display is equivalent to the flashlight. If you are driving, then it may cause traffic accidents.
LED display brightness settings and protection
Adjust the brightness of LED display according to the environment
The main purpose of brightness adjustment is to adjust the brightness of the whole LED screen according to the ambient light intensity, so that it looks clear and bright, but not dazzling. Because the brightness of the brightest sunny day and the darkest brightness ratio can be up to 30,000 to 1. Accordingly, the brightness settings also vary widely. However, there is no configuration for brightness specification at present. Therefore, users should adjust the brightness of LED electronic display according to the changes in the environment.
Regulate the blue output of outdoor LED full color displays
Because brightness is a parameter based on the perceptual properties of the human eye, the human eye has a different ability to perceive light of different wavelengths. Therefore, brightness alone cannot accurately reflect the strength of the light, and irradiance as a visible light safety energy measurement index can more accurately reflect the dose of light on the eyes.
Therefore, the measured value of irradiance measurement equipment, as the basis for judging whether the blue light output intensity will constitute damage to the eyes. Outdoor LED display manufacturers and users should meet the conditions of the display, reduce the blue light output component of the LED display.
Standardize the light distribution and direction of LED displays
Users should try to consider the rationality of light distribution of the LED electronic display, in the field of view, so that the LED output of light energy in all directions of uniform distribution, to avoid the small angle of view of the LED glare directly to the human eye.
At the same time, should limit the LED light irradiation direction and range, reduce the LED display on the surrounding environment pollution. Regulate the brightness of outdoor display screen at regular intervals, especially at night to reduce the disturbance.
Regulate the output frequency of full color LED screens
LED display manufacturers should be in strict accordance with the requirements of the specification design display, display screen output frequency to meet the specification requirements, to avoid the screen flicker to the viewer to bring discomfort.
Specify safety measures in the instruction manual
LED display manufacturers should indicate the use of precautions in the LED display user manual, explaining the correct way to adjust the brightness of the LED display, as well as a long time looking directly at the LED display on the human eye may cause harm. When the brightness automatic adjustment equipment failure, you should take the manual adjustment method or turn off the LED display.
When encountered in a dark environment, harsh LED display, should enhance self-protection measures, do not look directly at the LED electronic display for a long time or carefully identify the details of the picture on the LED electronic display, try to avoid the LED by the eye after focusing on the formation of bright spots under the eye, burn the retina.
LED display manufacturers on the LED display brightness methods
High quality LED chips
To address the negative impact of LED displays that are too bright, LED display manufacturers deal with this by replacing regular lamp beads with quality lamp beads that can support high brightness displays. A quality LED chip will have better energy efficiency and optimization.
Automatic brightness adjustment
At present, the general control card can be timed to adjust the brightness, some control cards can be added to a photoresistor to automatically adjust the brightness. LED display manufacturers can use advanced LED control cards, LED display brightness automatic control, thus greatly reducing the LED display brightness on people’s interference.
Conclusion
More than just a specification, LED display brightness is a key factor in visibility, comfort and energy efficiency. By understanding brightness ranges, addressing potential negative impacts, and utilizing advanced brightness management techniques, users can maximize the performance of their LED screens. Whether you’re a business owner or a consumer, understanding LED display brightness will help you make better decisions based on your display needs.