According to a study published lastmonth by LG Display, OLED TVs have less impact on sleep quality thantraditional liquid crystal display devices (LCD). The study found that OLED TVpanels actually help maintain normal sleep patterns, which are beneficial foreye health and overall physical and mental health.

The study, conducted by LG Display incollaboration with Kookmin University in South Korea, observed 40 adults fortwo weeks. The researchers divided the participants into two groups, watchingLCD and OLED TVs with the same content and measuring their melatonin levels.

The results showed that after two hoursof watching an LCD TV, the participants' melatonin secretion decreased by anaverage of 2.7 percent. This is consistent with previous studies on the effectsof blue light on sleep. Surprisingly, after watching OLED TV for two hours, theparticipants' melatonin secretion increased by 8.1% on average. The body needsto increase melatonin secretion at night to promote sleep, and a disturbance inmelatonin secretions can lead to sleep disorders, the study notes.

LG Display explains that modern LCDpanels emit as much as 70-80% of their light in blue light because they requirea strong backlight, while OLED panels emit only 36% of their light in bluelight. In addition, OLED TVs can also promote comfort by activating theparasympathetic nerve, thereby effectively maintaining normal sleep patterns.

LG Display's OLED panels have beencertified by several authorities, including the "Circadian RhythmFriendly" certification issued by the Rheinische TüV Group in Germany andthe "Flicker Free" and "Glare Free" certifications from ULLaboratories in the United States.

Although OLED TVs may help improvesleep quality, there are many factors that affect sleep, including exercise,stress, sleep environment, sleep time and so on. Therefore, you cannot simplyrely on replacing the TV to solve the sleep problem.