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The maximum viewing distance will provide a viewing angle of approximately 16 degrees with Best Buy's recommendation and approximately 20 degrees with Crutchfield's. The maximum viewing distance (minimum viewing angle) provided by Best Buy aligns with vision theory on the highest spatial frequencies perceivable by the human visual system. [41]
With LCD screens, some manufacturers have opted to measure the contrast ratio and report the viewing angle as the angle where the contrast ratio exceeds 5:1 or 10:1, giving minimally acceptable viewing conditions. The viewing angle is measured from one direction to the opposite, giving a maximum of 180° for a flat, one-sided screen.
The rule of thumb is to multiple the diagonal length of the TV by 1.2 to determine the ideal viewing distance, Samsung's Fishler said. If bigger is better in the TV department, how big can they go?
Worse, it shows that for homes where the distance between the sofa and the TV is 2.5 meters, the optimal size for UHD8K is 3.12 meters (0.8 times the height of the image) which that exceeds the ceiling height. Ssirdeck 09:53, 28 November 2022 (UTC)
The resolution of the human eye (with 20/20 vision) is about one minute of arc.For full HDTV resolution, this one minute of arc implies that the TV watcher should sit 3.2 times the height of the screen away (optimal viewing distance).
The viewing cone refers to the effective viewing directions of an LCD display, as seen from the eye. This collection of angles resembles a cone. The concept has been introduced as an international standard ISO 13406-2, which defines it as the range of viewing directions that can safely be used for the intended task without "reduced visual performance".