I would like to point interested parties that this might not be true for some camera models. I went out to the description of an industry standard and have the solution ordered without scrutiny (dimensions are in the article description does not include date). Unfortunately, I realized that my camera (Samsung NX10) differs in size, as the 3.0-inch display has a different carved frame and the glass is too narrow. Therefore, please measure your (indicating the extent at least in reviews recognizable) and check.
The solution itself is absolutely brilliant, stay away from all films. For the NX there is a solution here, for example Screen Protector for Samsung NX10 - 3.0 inches, it fits perfectly.
Conclusion: 5 points for the solution per se, 1 point deduction for defective item description.