Because eyes are spherical, the shapes of flat objects actually appear distorted when reflected on the round-shaped retina. Take the Parthenon for example. If it was built flat, it would actually look distorted as depicted below.
Ancient Greek architects well understood the visual distortion triggered by human eyes. So, the temple was actually built with a curved shape to make it appear flat.
China Electronics Standardization Institute, or CESI, by conducting distortion comparison test, confirmed that the level of distortion improvement of Curved TV is far more superior than any Flat products in the market.