”Only those who don't understand display technology would make such uninformed statements. LCD is actually worse for the eyes because its on/off response time is much slower than OLED's, at 20-30 milliseconds (LCD's claimed response time of around 7 milliseconds refers to the on signal response time, while the off signal response time is several times longer). Since the human eye's visual persistence time is around 20 milliseconds, the previous frame of the image displayed on the LCD hasn't disappeared before the next frame appears. This doesn't affect static images like text and photos on a computer screen, but it causes blurring of dynamic images in video (such as a trailing effect in fast-moving football images). In display technology, this is called "dynamic resolution degradation." When image resolution decreases, the human eye subconsciously adjusts its lens to focus, straining to see the image clearly. Therefore, when watching sports, games, or martial arts programs on an LCD TV, the eyes are constantly focusing, leading to eye fatigue, dryness, soreness, dizziness, and eventually, decreased vision. This is especially detrimental to children whose eyes are still developing.“

OLED displays, on the other hand, have a switching response time of tens of microseconds, much faster than LCDs. They do not experience dynamic resolution degradation when displaying television images, which is beneficial to eye health.

Long before LCDs became widespread, there was a debate between LCDs and PDPs. Liquid crystal displays (LCDs) use light-emitting elements that do not emit light themselves, instead displaying different colors through color filters; plasma display panels (PDPs), however, emit different colors of light themselves.

The LCD vs. PDP battle ended with LCD's resounding victory, but it seems the war isn't over yet; it appears to be only the first round.

https://www.china-digitalsignage.com/Products/Outdoor_Digital_Signage/

https://www.china-digitalsignage.com/Products/Portable_Digital_Signage/

The display war now seems to be in its second round, with the two sides still vying for dominance between light-emitting and light-filtering screens. However, the light-emitting elements are no longer the "early" plasma display components, but rather organic light-emitting diode (OLED) displays and other similar devices.

Compared to PDP, OLEDs may offer richer colors and significantly lower power consumption. Of course, both LCDs and OLEDs are constantly making progress, so the outcome of the battle may not be immediately clear. However, what we can expect is more vibrant and realistic colors: after all, the electromagnetic spectrum that human vision can perceive is still very narrow—compared to the entire electromagnetic spectrum, from gamma rays to ultraviolet rays, from infrared to ultraviolet… the visible light range is only a tiny bit, with wavelengths of 400-760nm, which is quite limited.