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Tuesday, December 22nd, 2009
The continously changing quality of television is an intersting phenomena. Most European countries plan, develop or already introduce high quality television systems. The current quality standard is called HDTV (Full HD 1080p) and is a standard for digital audio/video signal. This quality can be delivered used special equipment. This short post gives a little overview about the subject.
The Screen
In order to view the beautiful pictures delivered from the source, you need a TV set. In my childhood we had a monochrome Cathode Ray Tube (CRT) TV set, a huge box, incredible heavy, full of electrical components. Produced in Russia, its handle broke and we had nippers near the TV set in order to switch the channels (they were switched by rotating the handle). The next TV set we had could reproduce color but had approximately 12″ screen size. Its channels could be switched using small buttons. In the nineties, the time of big CRTs begun. A normal person could effort a 30″ CRT and of course it had a remote control. I saw my first plasma screen on an exhibition in Germany – I was thrilled by its relative small depth in comparison to a CRT. But the plasma screens of the nineties were heavy, consumed about 400W and had about 8 fans, which were pretty loud. Finally, the time of LCDs began and now the technology seem to be one of the main technologies in the market of TV sets. It is difficult to find a store selling CRTs in Germany. (more…)
