High definition signals place new demands on TV video processing circuits to enable display of high definition images. P3 technology improves the picture in three ways Improved signal-to-noise ratio thanks to a new 3D algorithm, double pixel processing and MPEG noise reduction that reduces block noise. Improved sharpness without the halo effect with new 2-dimensional edge correction circuitry. Improved contrast at high picture levels because of a new gradation compensation circuit, which enhances the dynamic range of the picture tube.