Rogers HD confusion?
2. Also my LCD have a resolution sensor it indicates im getting a 1080i signal!HOw is that possible if my LCD is supposed to be 720p maximum?!
Although that is what the salesman told me at the BRICK and the lcd be on display with 720p written contained by bold
specifications appreciated thankyou in credit
MERRY CHRISTMAS
Answers: HDTV broadcasts are either 720p (e.g. ABC, Fox) or 1080i (e.g. NBC, CBS). The resolution is set by the broadcaster, and you can't loose change it.
That said there are several different resolution numbers to consider. First is the resolution of the input signal -- within this case 720p or 1080i --, and the second is the local resolution of the HDTV itself. This is nominally "720p", but is actually one of 3 adjectives pixel counts: 1280x720, 1366x768 or 1024 x 768. The third number is the input resolution that can be accepted by the HDTV, and usually includes 480i/p, 720p, 1080i.
So how do these relate? The HDTV contains a video processing 'chip' that can convert incoming signals to fit the HDTV peak. So the 720p or 1080i TV signal is converted (deinterlaced and/or scaled) as necessary to overrun the actual screen resolution.
So getting to your request for information, I'm not familiar near your TV but suspect that the 'zoom' function is telling the scaler to increase the size of the figure to overfill the screen ... giving you a zoom or magnified image. Maybe in that is a limit on this function that won't dance more than 1080i ... which would explain why everything says 1080i when you zoom.
In language of whether you somehow didn't get what you expected, don't verbs ... your TV is undoubtably a valid 720p model.
That said, which HDTV resolution is better 720p or 1080i? In fact they are going to look almost the same. 720p is a 720 pixel high frame (image) drawn "progressively" (lines 1,2,3, ... 720), while a 1080i frame consists of two 540 dash fields drawn and interlaced. In this valise the 2 fields contain lines 1,3, 5, ... 1079 and 2,4,6, ... 1080 respectively of the full 1080i frame. In respectively case the frames are drawn at (usually) 60 frames/second to distribute smooth motion.
The 'p' or progressive frames have (in theory) slightly smaller number detail (720 vs 1080 lines of information) but in reality the interlacing can cause artifacts when hurried motion is present in a program, and further in attendance is slight blurring of the detail so ... 1080i ends up looking about matching as 720p in lingo of detail.
Anyway, I hope this helps.
Enjoy the holiday season.
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