The reason why the oled screen is burning, how to fix it?
As one of the most expensive parts in the iPhone, Apple attaches great importance to its design. From the Retina (Retina) screen of the iPhone4 period to the OLED screen of the iPhoneX series, Apple has always maintained a high industrial level.
But for devices using OLED screens, "burning the screen" has become an inescapable flaw. The so-called "burning screen" is worth the situation that the OLED screen displays the same picture for a long time, which eventually leads to partial display abnormality.
The reason for this problem is the unique characteristics of OLED screens-self-illumination. Generally, the back of the display is equipped with a backlight layer. The display will emit light when the backlight layer is lit, but the light emitting mode of the OLED screen is different from this. The OLED screen is imaged by self-illumination of pixels. When the screen is long When displaying the same color, some components will be aging due to continuous light emission. When this aging reaches a certain level, it will not be able to recover, so a "after-image" appears on the screen.
In order to solve this problem, various mobile phone manufacturers are thinking of ways to avoid it. For example, Samsung has set the virtual buttons below some models, and it will automatically fine-tune the display position every time. Because the adjustment is very small, it is not Will affect the user's use, also cleverly avoid the same image displayed in the same place for a long time.
During normal use, pay attention to the following issues to avoid "burning the screen".
1. Avoid displaying static images and maximum brightness for a long time.
2. Turn on automatic brightness adjustment.
3. Use a shorter automatic lock time.
Oled how to fix burned screen
OLED is undoubtedly the best display panel technology at present, and the overall picture quality of OLED TV is also highly praised. However, no matter how gorgeous the technology is, there are also some flaws. The aging afterimage problem of CRT and plasma TV will also happen on OLED. So, is the aging phenomenon of OLED serious, and how to avoid this kind of phenomenon? Take a look.
OLED "burn screen"
During the plasma period, the so-called "burning screen" is very common, which is also the biggest criticism of users on plasma. For OLEDs, because of technical differences (OLEDs use organic light-emitting diodes, plasma is a phosphor that applies voltage), the chance of OLED permanently burning the screen is low. Of course, with the increase of use time, OLED will also aging phenomenon, mainly reflected in the afterimage.
Actual test OLED residual image
Foreign media Reviewed conducted a stress test on the afterimage phenomenon of OLED. Specifically, the LG55EG9100 (Full HD OLED TV) was used to continuously play the menu interface of Blu-ray DVD "The Fifth Element" for about 20 hours, and then used a monochrome background to test whether the screen changed. .
After 20 hours, you can see that the menu interface of the movie DVD has been stuck on the screen, and it will not disappear even if you call up the TV menu. Then, after turning off the TV for 10 minutes, you will find that the residual image of the DVD menu has basically disappeared, but if you look closely, you will find a little residue.
Turned off the LG55EG9100 again for about two days, then turned on the TV and found that the afterimage still remained faintly. So, does this mean that a brand-new OLED TV is just destroyed? Don't be nervous, look at the method below.
How to repair OLED aging？
Reviewed editor once again tested LG55EG9100, including connecting XboxOne to play games for 45 minutes, fixed display XboxOne main screen interface for one hour, and finally found that the previous DVD menu afterimages basically disappeared. Turn off the TV and turn it on again the next day. The afterimages no longer exist, just like a new TV. However, after displaying the static image for 45 minutes, the white part on the right side of the screen faintly reappeared. After turning off the power for about two minutes and turning it on again, you will find that they disappeared again.
After consulting with LG TV engineers, we can probably understand how to prevent the afterimage phenomenon of OLED TVs. First of all, don’t let the TV display bright static images for too long. If the residual image appears accidentally, you can turn off the TV for about 5-10 minutes and turn it on again, while playing some dynamic elements, and then turn off the TV for a few hours, normal use .
In simple terms, to prevent permanent screen damage from the OLED TV, you need to avoid allowing it to display static images for a long time. For ordinary users, this problem should not happen often, and most OLED TVs also have an automatic shutdown function to prevent this phenomenon. It should be noted that game console users should be more careful when using OLED TVs, especially games that are not dynamic and frequently display the same elements.