The battle in the high-end of televisions is being waged by OLED panels and QLEDs with MiniLED technology. The latter is getting closer and closer to the performance of OLED by being able to control more and more zones of LED lighting . However, the simplicity of OLED panels at the lighting level not only has more advantages in terms of image quality, but it would also be better for health .
This has been revealed by a study carried out by researchers at the University of Tsukuba, in Japan. In the study, the researchers found that exposure to OLED light sources has a lower impact on people’s sleep quality than LED-backlit televisions. These results are consistent with studies claiming that blue light reduces melatonin secretion at night, making it harder to fall asleep.
OLED panels emit less blue light
OLED panels have a lower brightness level than LCDs, which they compensate for with higher contrast. Thus, they require a lower level of overall brightness to offer excellent image quality, while LCDs need a higher level of brightness to compensate. In addition, it makes it more energy efficient.
The key to this difference is that polychromatic white LEDs emit a large amount of blue light. In comparison, OLEDs emit a polychromatic white light that contains less blue light.
They would also help to not gain weight
However, sleep is not the only thing this study has analyzed, it has also analyzed the body’s metabolism in sleep. Users who viewed OLED screens had a lower energy expenditure and a lower body temperature, which implies a higher quality of sleep. Also, fat oxidation was less affected by OLED panels than LEDs. Thus, as there is a worse oxidation in fat with LEDs when sleeping worse, this makes you tend to gain more weight.
This does not imply that you have to throw your television, monitor or mobile with LCD panel out the window. The study speaks clearly about the effects that blue light has on the body, so all you have to do is reduce the amount of blue light that these panels emit. Most current devices have technologies to reduce blue light, and if you are doing something like talking on a messenger or watching social networks, seeing everything yellowish is not going to affect the image quality.
It is different if you consume multimedia content, that there the color quality is important, and the mere fact of using an OLED panel will help you sleep better . You can also verify that the television you are going to buy has some safety certification related to vision. For example, Samsung televisions have eye safety approval from the Underwriters Laboratories and the Verband Deutscher Elektrotechniker. In TCL‘s case, the TVs meet the EyeSafe Display Standard certification, which is also met by most LG OLEDs from 2021.