OLED is undoubtedly the best display panel technology at present, and the overall picture quality of OLED TV is also highly praised. However, there are some flaws in the gorgeous technology. The aging and residual image problems of CRTs and plasma TVs also occur on OLEDs. So, is OLED aging serious and how can we avoid this phenomenon? Take a look.
OLED "burn screen"
During the plasma period, the so-called "burning screen" is very common, which is the user's biggest criticism of plasma. For OLEDs, because of technical differences (OLEDs using organic light-emitting diodes and plasmas are voltage-applied phosphors), the probability of permanent OLED burning is low. Of course, with the increase in the use of time, OLED will also have an aging phenomenon, mainly reflected in the afterimage.
Actual test OLED afterimage
The foreign media Reviewed conducted a stress test on the afterimage phenomenon of OLED, specifically using LG 55EG9100 (Full HD OLED TV) to continuously play the Blu-ray DVD “Fifth Element†menu interface for about 20 hours, and then using a monochrome background to test whether the screen generated Variety.
After 20 hours, it can be seen that the menu interface of the movie DVD has been stuck on the screen even if the TV menu is called out. Then, after turning off the TV for 10 minutes, you will notice that the DVD menu is almost gone. However, if you look closely, you will still find some residue.
Once again, the LG 55EG9100 was turned off for about two days. After the TV was started, it was found that the afterimage remained vaguely. So does this mean that a brand new OLED TV has been destroyed this way? Do not be nervous, take a look at the following method.
How to repair OLED aging
The Reviewed editor once again tested the LG 55EG9100, including connecting the Xbox One for 45 minutes, fixing the Xbox One home screen for an hour, and finally finding that the previous DVD menu blur basically disappeared. Turn off the TV and turn it on again the next day. The afterimages are completely gone. It's like a new TV. However, after displaying the static image for 45 minutes, the white part on the right side of the screen looms over and over again. Turning the power off for about two minutes and turning it on again will reveal that they have disappeared again.
After consulting with the LG TV engineers, we can probably understand how to prevent ghosting on OLED TVs. First of all, do not allow the TV to display bright static images for an extended period of time. If an afterimage appears inadvertently, turn off the TV for about 5-10 minutes and turn it on again. At the same time, play some dynamic elements. Then turn off the TV for a few hours. .
In simple terms, to prevent permanent screen damage on OLED TVs, it is necessary to prevent them from displaying static images for a long time. For the average user, this problem should not happen often, and most of the OLED TVs also have an automatic shutdown feature to prevent this phenomenon. It should be pointed out that users of game consoles should be more careful when using OLED TVs, especially those games that do not have a strong sense of dynamics and frequently display the same elements.
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