Shortcomings of OLED TV
Controversy over the burn-in of OLED TVs has resurfaced. Burn-in is a phenomenon in which an image of a previous channel remains on a TV screen even if a TV channel is changed.
Recently, according to the TV industry, OLED TVs’ burn-in issues are causing controversy mainly in American AV professional communities.
The burn-in controversy has been steadily aroused since the early 2000s when OLED TVs came out. It has been pointed out as the biggest shortcoming of OLED TVs.
US IT review company Rtings recently conducted a test by showing images of its logo on TVs for 10 minutes and then checking when the remaining images disappeared. Scores were given to the TVs according to the degree of their image retention, and they were rated with ten as the perfect score.
Rtings conducted the test on 29 TVs of internationally popular brands including Samsung Electronics, LG Electronics, Sony, TCL, LeEco and Sharp.
Sony's X700D model recorded the longest image retention, followed by LG's E6, B6 and C6 models. LG's OLED TV C7, a new model launched in April, scored only 5.4 points. In general, OLED TVs showed poor results.
"OLED TVs have the ability to remove image retention. But it takes about an hour to execute the function, and consumers have to turn off OLED TVs to initiate the function," Rtings said. "We also tested the function to move screens slightly to mitigate image retention but failed to remove it"