Like many people, you may be filled with a real desire to understand what makes an RPTV perform its magic. To be honest, it’s pretty much done with smoke and mirrors. (Just kidding - if you have smoke appearing out of your rear projection television you have a problem!)
Basically, a video picture is projected via a projectors lamp inside the TV, then a system of lenses and mirrors redirect the picture onto the internal surface of a translucent screen.
When this technology was first developed, CRTs (cathode ray tubes - the things that made old fashioned televisions so bulky) were used, and it worked well. The problem was that the tube made the case very heavy and, usually, a floor standing cabinet was needed to house it.
So, as screens grew bigger, and the industry began to adopt the new, wider 16:9 aspect ratio (the ratio of height to width), those old CRT cabinets were gradually replaced by newer models which deliver high-quality performance in compact, light cases.
Rear projection TVs come ready with high definition capability nowadays. This is an extremely important point - they are equipped to handle everything HDTV broadcasting and discs can demand of them. And make no mistake - HDTV will deliver wide screen images in much better detail and clarity than we are used to from traditional TV. In addition to tuners for analog and cable TV - not to mention the ability to receive unencrypted digital cable signals without the need for a set top box - HD tuners are included in all modern rear-projection TVs, which makes them capable of taking full advantage of all the broadcasting innovations which will be upon us soon.
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