![]() LCD TVs have a contrast ratio of up to 1000:1 however, this metric is calculated differently for LCDs so it's not an apples-to-apples comparison. Plasma TVs score well on this parameter with a contrast ratio of up to 3000:1. Here is how LCD and Plasma TVs stack up in terms of all the various elements that determine picture quality.Ĭontrast ratio is a measure to compare the darkest black with the whitest white. LCD panels do not generate light - rather they filter or subtract light produced by a backlight source to create the image on the panel surface. This results in more or less light passing through the polarized glass to reach the face of the display. When an electric current passes through the liquid crystals, they rotate causing a change in the polarization of the light passing through them in response to the applied voltage. Liquid Crystal Displays (LCD) panels - work by trapping a liquid crystal solution between two sheets of polarized glass. In other words, each picture element in a plasma TV display acts as a miniature light source. Plasma displays uses a matrix of tiny gas plasma cells that are charged by precise electrical voltages to emit light and create the picture image. The main difference lies in the display technology. Plasma TVs have an edge over LCD TVs in terms of overall picture quality but LCDs are catching up with improvements like LED backlighting. When deciding which HDTV to buy, it is important to understand the quality, power consumption and price of Plasma and LCD/LED TVs. ![]() Diffen › Technology › Consumer Electronics ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |