Philips 201P User Manual

Contents

Anti-Static coatingsDue to bombardment by beam electrons, monitor screens become electrically charged when in use.Electrically charged screens surfaces can attract dust particles. An Anti-Static coating is a conductive coatingdeposited on the screen (or on a glass panel immediately in front of the screen) that conducts away thecharge and prevents screen dust build-up.AGAS (Anti-Glare, Anti-Static) coatingAGAS is a silica coating applied to the surface of the screen by a spinning and spraying process. It operatesby diffusing reflected light to blur images of light sources on the screen. To provide anti-static properties, thecoating is impregnated with small conductive particles.ARAS (Anti-Reflection, Anti-Static) coatingARAS is one of the most effective anti-reflection/anti-static screen treatments currently available. It iscomposed of a multi-layer structure of transparent dielectric material that suppresses specular reflections bybroadband interference effects at the screen surface. Anti-static properties are provided by a singleconductive layer within the multi-layer structure.With ARAS, the intensity of reflected light is reduced from around 4.5% of the incident light (the reflectivity ofuncoated screens) to less than 0.5%. ARAS also has a major advantage over other screen treatments: Itdoesn't diffuse or scatter reflected light, so picture contrast and sharpness remain completely unimpaired. It'salso easy to clean and tough enough to withstand commercially available cleaning agents.Glossaryfile:///D|/rita/LF2/LF2/LFa1/multi_manual/english/GLOSSARY/GLOSSARY.HTM (12 of 18) [8/29/2001 3:14:04 PM]