When you are playing some fast-paced games or watching fast-paced programs such as sports events, do you feel that there are traces, afterimages or blurring on the screen? If so, then you are experiencing screen afterimages. Various types of LCD panels have the possibility of ghosting, so what can be done to remedy the phenomenon of ghosting?
What is screen afterimage? Is there a way to remedy this?
What is screen afterimage?
Screen sticking is a visual artifact that follows moving objects, and is especially common when gaming or displaying other fast-moving content. You probably won’t notice afterimages in normal use or in slower-paced games, but they can become very noticeable when you’re playing first-person shooters, racing games, or even just scrolling quickly through web pages. obvious. Some monitors are more prone to afterimages under certain conditions, such as in extremely dark scenes. Afterimages can cause lost seasons of shadows, make the screen look cluttered most of the time, and can cause eye fatigue more easily due to increased strain.
Image sticking can affect any type of LCD panel, including monitors and TVs, and is especially common with VA panels, which are primarily used in TVs. There is no afterimage on an OLED TV, but it does suffer from temporary or permanent burn-in caused by static images.
What causes screen afterimage?
On-screen afterimages are caused by pixels that have too slow a response time to switch cleanly from one color to another in time. This problem is especially noticeable at high frame rates, where the frame rate (time to deliver a new frame) may be faster than the display’s response time.
Monitor manufacturers often advertise response times (in ms) and other monitor specifications (like contrast, refresh rate), and you may find that some screens list GtG (Grey to Gray) more accurately when tabulating data. Scale to gray scale) and MPRT (Moving Picture Response Time, moving picture response time, which refers to the continuous visible time of pixels), both refer to completely different indicators. GtG refers to the time it takes for a pixel to switch between two colors, and MPRT refers to the time a pixel remains on the display. Both indicators are as low as possible. If there is a fast GtG and a slower If the MPRT value is lower, it may cause afterimages to appear on the screen.
Run a test to see if afterimages are present
If you’ve seen ghosting or pixelation while playing fast-paced games, you’ve probably realized you’ve got a problem, and you might want to go a step further and run an afterimage test on your monitor, or consider buying a second-hand product. You can test it out before buying.usable UFO afterimage test on the Blur Busters websiteto proceed. Adjust the pixels per second in the speed drop-down menu to simulate faster or slower screen motion. If you see pixel trails consistent with ghosting, you are almost sure that the problem exists.
This test can also show other artifacts that may appear when you’re trying to fix monitor afterimages, so you’ll have to play through this test as you adjust to see if you’ve got a satisfactory balance.
How to fix monitor afterimage?
You can try to use the monitor’s Overdrive setting to correct the afterimage. By using a higher voltage on a single pixel, the response time can be shortened, so that the afterimage can be reduced or completely eliminated. Different brands have different names for Overdrive settings, so you may have to dig through the on-screen settings to find them. Commonly used names include Overdrive, OD, Response Time (or Response Time, which is used by LG and Samsung), Response Time, TraceFree (ASUS), Rampage Response (ViewSonic), AMA (BenQ), etc. or similar names. Some of the more entry-level monitors don’t have this setting, so you can’t do anything with it.
In addition to Overdrive, you should also pay attention to other settings, including noise reduction and dynamic contrast ratio, or if you are using a TV, pay attention to motion smoothing, these can cause unwanted artifacts and afterimages to appear.
Be aware of pixel overshoot when adjusting overdrive
While we mentioned above that Overdrive can be tuned, alas it’s not a perfect solution. This setting usually has a series of speeds to choose from, such as levels 1 to 5, or names such as fastest, extreme speed, etc., so that everyone will involuntarily go to the best direction in their minds when setting, but in this way It is easy to cause pixel Overshoot or corona. Overshoot instead produces artifacts due to pixels exceeding the desired color, also known as inverse afterimage, mainly due to a dispersion-like effect caused by too fast pixel transitions.
Therefore, you don’t need to strive for extreme values when setting, just take a balanced value depending on the monitor you are using, and of course it depends on your personal preference. A small amount of afterimage may be more acceptable than corona, so it is usually just right to measure at a medium overdrive setting.
Don’t confuse afterimage with image diffusion
Blooming is another adverse visual phenomenon that you may have heard of. Afterimage refers to pixel problems caused by response time. Blooming is caused by LEDs being lighted, especially prone to full-array local adjustments. light on the display. If you want to have excellent response time without image blowout, please consider adding some budget to buy OLED panel products.
