Plasma Plasma TVs are generally more expensive than LCDs, mainly because almost all of them are 42 inches or larger. However, they are also believed to have a higher picture quality than LCDs, offering up to a 1920 by 1080 resolution that is comparable to the quality of Blu-ray discs. The picture is produced by several tiny cells containing inert noble gases between two glass panels. The gas becomes plasma when electrically charged, thereby exciting phosphors to illuminate the picture.
