noun
viewing angle; angle of view
Technical term used in optics, displays, and photography to describe the angular range from which a screen or scene can be viewed acceptably.
この液晶ディスプレイは視野角が広い。
This LCD display has a wide viewing angle.
視野角が狭いと、斜めから見たときに色が変わって見える。
If the viewing angle is narrow, colors appear different when viewed from an angle.