ALIS (Alternate Lighting of Surfaces)

ALIS (Alternate Lighting of Surfaces) is a relatively new type of plasma display high-definition designed for optimum performance when sample material 1080i. In conventional plasma TVs, all pixels are illuminated at all times. With a plasma display ALIS, glow alternate rows of pixels for that half of the pixels on the screen are lit at any time (something similar to the interlaced scanning of a TV type CRT). ALIS screens offer brilliant image quality and clear, reduced energy consumption and long life.

On a conventional plasma TV, all pixels are illuminated at all times. With an ALiS plasma panel, alternate rows of pixels are illuminated so that half the panel's pixels are illuminated at any moment, somewhat similarly to interlaced scanning on a CRT-type TV. This allows higher native resolution than designs with discrete pixels (typically 1,024x1,024 versus 1,024x768 for 42-inch plasmas), but ALiS has historically suffered in other areas, including black-level performance.