Bright, brighter, brightest - by Barry Fox

摘要

Projection remains the most cost-effective way to show really big pictures. There are two competing technologies; either light is shone through small red, green and blue LCD panels, or light is reflected through a spinning wheel of colour filters by a DLP array of micro-mirrors. The DLP camp claims that LCD panels degrade in the intensely hot light, and the LCD camp points to visible artefacts like the 'rainbow effect' seen with some DLP systems.