If you are concerned about eye health, you must have heard of blue light damage, then what is blue light damage? In fact, we often see blue light in life, not in the sky or in the light, there are blue light. Among them, the high-energy short-wave blue light, that is, the blue light between 440 nm and 460 nm, will cause harm to the human eye. However, as we age, our lens can filter a certain amount of blue light. But the main problem we are facing now is the excessive blue light environment, so the Blu-ray problem is getting more and more attention.
So why is the current Blu-ray excess? The reason is also very simple, there are excessive blue light in the monitors, mobile phones, tablets and TVs we use. The reason is that most of the current liquid crystal display devices use LED backlights. Since backlights require the effect of white light, the industry uses blue LEDs to mix yellow phosphors to form white light. Since the blue LED is a main hardware, the blue spectrum in this white light has a peak, which forms what we call the blue eye.
The blue light peak of the LED backlight is obvious
So is it true that all current LCD devices have such problems? The answer is not optimistic, because the current mainstream backlight is LED, the past CCFL backlight has long been eliminated, and the new variety is extinct. Users who use this old-fashioned display are gradually upgrading to new products. As for tablets and mobile phones, 100% use this backlight system.
So what are the aspects of Blu-ray damage? This problem seems to be simple. In fact, many of my friends are not very clear. Many people say that Blu-ray is hurting the eyes. This is a more general statement. Today we will analyze this issue.
Blue light damages the first damage structure
First, let's take a look at the structural loss of blue light on the eye, which is the real damage to the eye. Short-wave high-energy blue light has a strong penetrating power, which can cause atrophy of the retinal pigment epithelium and cause death of light-sensitive cells. The function of light-sensitive cells is to receive human light to convert light signals into electrical signals, which are then transmitted to the brain through visual nerves for imaging. The death of light-sensitive cells will lead to a gradual decline or even complete loss of vision. This damage is very deadly.
Short-wave high-energy blue light causes atrophy of retinal pigment epithelium
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