Why are there cross marks visible in the corners of my display?
You might notice cross marks in all four corners of your Acer Nitro VG272UW or Acer Nitro KG270 M3 gaming monitor, see image below. These four cross marks are alignment cross marks that are utilized in the manufacturing process of your LCD display.
Fortunately, the cross marks are in the so-called non-visual area of your display, so they do not disrupt the normal use of your display. This means the cross marks are within the specified display standards and are therefore not considered a technical issue.