Are you confused about flat-panel TV terms? Who wouldn’t be, with so many technologies and so many terms to describe them. What’s the difference between LED, LCD and OLED, for example? What does 120hz mean? What’s the soap opera effect? We’ll walk you through in our printable glossary, from 120hz all the way to widescreen. Are you shopping for a flat-panel TV? See: Our Flat-panel TV guide for a list of features to look for and a comparison of the various types available. Flat-panel TV glossary: 60hz: originally, the standard refresh rate for high-definition displays. The refresh rate indicates the number of times a display is repainted per second, in hertz; a 60hz refresh rate indicates that a display is repainted 60 times per second. 120hz: quickly becoming the new standard. A higher refresh rate means a smoother picture and less motion blur. 600hz: a refresh rate sometimes seen specified for plasma displays. It doesn’t identify the refresh rate in the same way that 60hz or 120hz do. Plasma displays sample the incoming signal almost continuously and make any necessary adjustments immediately. A 600hz TV samples the incoming signal 600 times a second. 1080p: a resolution of 1920 x 1080 in a progressively scanned (rather thaninterlaced) display. A 1080p resolution enables display of high definition content without requiring downconversion