Mobile party attention! Three habits to get rid of LED blue light hazard

Blu ray environment

Zhongguancun online news, if attention to the eyes of healthy people, must have heard of blue light damage, then what is the blue light damage? In fact, we often see blue light in life, not the sky or the light, there is a blue light. The high-energy short wave blue light, that is, 440 nm to 460 nm blue light will cause harm to the human eye. But as we get older, our lenses can filter certain blue light. But the main problem we are facing now is the excessive Blu ray environment, so the blue light problem is getting more and more attention.

So why is the Blu ray over now? The reason is also very simple, we use the monitor, mobile phones, tablet computers and television, there is an excessive amount of blue light. The reason is that the current LCD device, the vast majority of the use of LED backlight. Due to the need for white light backlight effect, so the industry uses blue LED yellow phosphor to form a white light. As the blue LED is a main hardware, so the white light in the blue spectrum has a wave crest, thus forming what we call the blue eye problem.

LED backlight blue wave obvious

So is not all of the liquid crystal display devices have such a problem? The answer is not optimistic, because the current mainstream backlight is LED, the past CCFL backlight has been eliminated, the new species disappeared. The use of this kind of old-fashioned display of users, are also gradually upgraded into new products, as for the tablet and the phone, then 100% of the use of such backlight system.

So what are the aspects of Blu ray damage? This problem seems simple, in fact, many friends are not very clear, a lot of people say that blue eye injury, which is a more general statement, today we will analyze the problem.

Blue light damage

First, let's look at the structural damage to the eye of the blue light, that is, the real damage to the eye lesions. The high penetration ability of short wave high energy blue light can cause the atrophy of retinal pigment epithelium and cause the death of sensitive cells. The function of light-sensitive cells is to accept the light from the light to the electrical signal, which is then transmitted to the brain through the visual nerve. The death of light-sensitive cells will result in a gradual decline or even loss of vision. This damage is very deadly.

Atrophy of retinal pigment epithelium induced by short wave high energy blue light

Blue light can accelerate the decomposition of intraocular lutein, through such blue light more easily, the original blue filter function of the human eye is very fragile, and now a lot of blue light environment, long time in this state, it will cause macular retinal degeneration appears to protect the eye, also called macular degeneration, which modern people increasingly common eye diseases.

To prevent children from prolonged exposure to liquid crystal display devices

For children, this stimulation is particularly evident. Because the child's eye structure is not stable, there is no stable blue light filtering function, so the blue eye for children's eye injury is more direct. In daily life, adults may maintain a certain eye health, in the use of monitors and mobile phones and other devices, there will be no obvious lesions, but children are much more dangerous. Therefore, we must put an end to allow children to contact the LCD device for a long time.

Blu ray second visual fatigue

In addition to the direct lesions, the blue light is not directly to the eyes of the eye so suddenly. Blue light may cause cumulative damage. This is because the blue light is prone to glare, causing blurred vision. Because of the short wavelength of blue light, his focus is not on the center of the retina, but on the front of the retina. Eyes will be forced to try to see clearly, so that the eye will remain in a tense state for a long time, causing visual fatigue.

LED light strip used in display

For a long time, the visual fatigue may lead to the deepening of people's myopia, the emergence of diplopia, easy to read serial, attention can not be concentrated, etc., affect people's learning and work efficiency. Students in the past is exhausted high risk, long time reading, attention, the eye is not easy to relax, now the office crowd and IT practitioners to become the incidence of the main, this is inseparable and blue light injury.

Visual fatigue is also one of the blue light damage

It's easy to relieve visual fatigue. Everyone can do it easily. General normal adults per minute blink in about 20 times, but when staring at the screen, and when the computer screen, will be reduced to about four or five times, this will reduce the secretion of tear gland, tear, eyes will appear dry sour and discomfort. So it's a good habit to blink a lot.

Blu ray third bad sleep

Blu ray also affects sleep. This is a lot of people do not know, a lot of friends like to play mobile phone before going to sleep, but if a long time in such an environment, it is easy to affect the quality of sleep. This is because the blue light on the pineal gland secretion of melanin inhibition. Half an hour before bed to see the tablet PC, melanin secretion will be reduced by 53%. Melanin is an important hormone that affects sleep. So play before bed