A "Full 3D" projector is a device capable of processing and projecting three-dimensional images from commonly available sources such as Blu-ray 3D players or game consoles. The key feature is the support of a standard 3D format called "Frame Packing". In this format, two separate full-resolution images - one for the left eye and one for the right eye - are sent to the projector, combined in a single data signal. This differs from older or simpler projectors labeled "3D Ready", which often only supported lower quality 3D formats, such as from a computer, and could not handle the signal from a Blu-ray player. To view 3D content, in addition to the projector itself, you need a signal source (such as the aforementioned Blu-ray player), a 3D movie or game, and active 3D glasses that synchronise with the projector and alternately cover the left and right eye to create the illusion of depth. The Full 3D projector therefore ensures compatibility with the most widely used standard for home 3D entertainment, providing a full-quality image for each eye.