LG 3D TVs and 3D viewing angles?

[yuriythebest]

Hello Everyone! I'm thinking of getting some used LG 3d tv that's a few years old/not too expensive, and my question is - how are the viewing angles for 3D? I have an LG 3D monitor, I think 22 or 23 inches, and the issue there is that I have to sit in a perfect position, otherwise some parts of the screen loose the 3D effect, and the only real solution is not to use the entire screen for 3D and watch in windowed mode. Was this just a factory defect/bad luck? Do large 40-50 inch LG 3D TVs have acceptable viewing angles in 3d where several people can easily watch/move around and the image is still fully 3d with no "2d burry spots"?