crying_undeath escribió:A ver... no es por "meter muertos"... pero en fin...
The CRT Question Quite a number of CRT HDTVs exist, both direct view and rear-projection. You rarely see any of them defined as 720p; most seem to be identified as 1080i. Direct view televisions (i.e., the good old tube) max out at around 34" for a wide screen unit, while rear-projection CRT TVs can be 65" diagonal or more.
CRTs are purely analog devices. If you hook your PC up to a CRT HDTV, you might be surprised to find out that it can only support 800x600 resolution or, if you're lucky, 1024x768. At first blush, that seems to indicate that a CRT HDTV isn't a "true" HDTV. But since they're analog, they do resolve the full 1080i signal. Since 1080i is interlaced, the TV only needs to support 540 actual lines of resolution. The horizontal scan lines aren't treated as pixels by the time the electron beam paints the line. The gating factor is electron beam spot size, and the number of holes or slots in the tube mask. For example, Sony's SuperFine Direct HDTV offers an actual resolution of 1407 x 1080i. For cost reasons, however, the manufacturers don't build in electronics that will support a digital progressive scan image that's 1920 pixels wide.
CRTs do have other benefits. They're still the best displays currently available to resolve standard television. Part of this is because the analog nature of the CRT "masks" the image defects in NTSC TV. But CRTs can resolve better details in deep blacks, though the best digital displays can look pretty good. Also, CRT HDTVs have the benefit of being considerably cheaper (if bulkier) than their digital cousins.
In a purely cost/benefits analysis, CRT televisions are the best bargains currently. For the most part, they're cheaper than their purely digital cousins. The technology is mature and well understood, they offer excellent contrast and dark scene detail. Direct view CRTs also offer wide viewing areas. But they're bulky and heavy; consumers are finding flat panels and shallow, digital rear-projection TVs to be more attractive. Also, their advantages over digital displays are steadily diminishing over time.
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ExtremeTech Yo no se que pensar, la verdad... el caso es que tambien me gustaria pillar un par o tres, pero como estan agotadas...