Ever notice that all TVs have been square. I found this odd since we can obviously see a more rounded view because of peripheral vision so why do we not make large round TV screens. Well in the past we simply did not have the technology with simple cathode ray tube TVs too make a round all in composing image nor did our cameras pick it up. Another commonly accepted opinion to why TVs are square is because a TV was seen as a large window into another world and as we know most windows are well square. I also found a really good answer that I think makes more since than the other two it also gives a reason why we haven’t changed it yet however it’s too hard for me to put into my own words so here it is. “San Diego Art Nut is pretty correct, but the answer is twofold.
Initially, we have become used to viewing images that reflect the line of the horizon, the horizon being the inbuilt control that our brain constantly refers to when maintaining balance, perspective etc. Paintings and architecture have followed this basic pattern ever since, as the one the brain prefers.
Now, we have the technology to make any shape, but don't. The roundness of the eye is useful only for focusing light; it has no relevance to the brain. The brain makes the eye flick left/right along the horizon, up/down using the horizon as base. Your peripheral vision remains dependent on the horizon as ever, so TV’s and cinema screens remain horizon friendly and probably will until our brains rewire!” (Steve J, yahoo answers)
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