What In the LED Screen Is Harming Our Eyes?

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2022-06-23

  

With the popularization of LED displays, the frequency of using large-sized displays is getting higher and higher. However, there are many types and brands of LED displays on the market, and not all the display effects are good enough, and some LED displays can also cause damage to the eyes!

 

Flickering

Different flickering has different effects on people!

 

(1) Visible flickering

The human eye is a very complex system, and individual differences are very large. For the majority people, light flickering below 80Hz can be perceived. At this time, the human eye can perceive changes in light and shade. Thus, the flickering frequency below 80Hz refers to visible flickering. Visible flickering is unacceptable for general lighting or displays.



Flicker Frequency.jpg



(2) Flickering effect

For the flickering above 80Hz, the human eye is not easy to detect, but it has a great impact on the human eye's spatial perception. For example, a moving object is regarded as a series of still images, that is, the flickering effect. Due to the flickering effect, people will have the illusion, and it is very dangerous to see some fast-moving equipment as slow-moving or even stationary.



Flicker effect.jpg


 

What are the effects of flickering on health?

 

Flickering has a stimulating effect on the human visual system and will produce uncomfortable feelings. Studies have shown that low-frequency flickering light sources of 3-70Hz may cause photosensitive epilepsy for some people; when the frequency is greater than 100Hz, the human eye cannot feel the flickering. But it still causes eye fatigue, headache, etc. Long-term viewings and use may easily cause problems such as blurred vision, declined eyesight, distraction, and photosensitive epilepsy etc.

According to the research and relevant standards of some institutions at home and abroad, when the flickering frequency of LED light source is above 1, 250Hz, the health risk is at a low range, and if it is to be completely harmless, it basically needs to be above 3000Hz.


 

Improve The Viewing Experience with An Excellent Screen

 

LED screen of high flash rate is very friendly to the human eyes, but also greatly enhance the dynamic effect of the picture, and avoid stuttering or flickering in playback, effectively preventing eye fatigue.

At the same time, LED display of high flash rate is not prone to smear when playing high-frame-rate videos, The content is vivid and clear even it is shoot with mobile phones or cameras.

 

From the perspective of users, it provides them with safer and high-quality products and a healthier and more comfortable visual experience.

 

Dakco LED displays are all made of high-quality materials with great standards and thus will not do harm to the eyesight of the viewers.


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