Concave Curved Screen development to enjoy on the big screen high realism The first story of the home video projector. Future television systems : At CES 2014 USA, Korean LG demonstrated curved OELD TV. The first home video projector sony 1971 used concave curved screen by the human vision principle

Abstract

Generally giant TV set has big and flat screen. At 2014 Consumer Electronics Show in USA, Korean electronics maker demonstrated new cylindrical curved screen big TV From 1971 my first Video Projector sony were using concave spherical screen by the reason of brightness and natural viewing. We can get natural reality images by concave screen. It is the wonder human vision and biological brain effect. We can get natural reality and beauty.