Some people think that the LED display has a "fatal injury", that is, the problem of LED blue light injury. In the past, this problem has been hidden, and now it is gradually known to consumers, because white LEDs are mainly blue LEDs, so in this kind of light, the composition of blue light is very much, high-energy short-wave blue light exists in the backlight of the display. Among them, it can cause the retinal pigment epithelial cells to die, causing macular degeneration and causing irreversible damage. So is this the case? Here, the China Institute of Metrology has conducted a test with a small-pitch LED display as an example.
According to the current international standards, China Institute of Metrology has measured the photobiosafety of a P1.67 small-pitch LED display from two aspects of retinal blue light hazard and thermal hazard, and selected plasma TV and LCD TV prototypes. As a comparison.
The test results show that under the same brightness and white field conditions, although the peak brightness of the LED display is higher than that of the other two samples in the blue light band, the narrow band characteristics make the retinal hazard index obtained by weighted integration. No higher than plasma TV and LCD TV, there is no significant difference between the three different display retinal biosafety measurement data. Among the three samples, the LED display measurement is even better than the other two displays.
It should be noted that long-term viewing of any display may cause permanent damage to the human eye. Therefore, no matter what form of display screen is used, operators should pay attention to eye hygiene and develop good eye habits. Combine, consciously and actively protect your vision.
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