The 4K Television is the latest High Definition TV specification.
The simple description is:
4K TV’s have a rating of 3840 x 2160 pixels
Full HD TV’s ( the previous best so far) are the:
1080p Format
1920 x 1080p with 2,073,600 pixels per frame
Some other HD TV’s, such as the 1080i, have a lower specification, and could be one of these:
1080i Format
1920×1080i with 2,073,600 pixels per frame (1,036,800 pixels per field)
1440×1080i with 2,073,600 pixels per frame (777,600 pixels per field)
720p Format
1280×720p: with 921,600 pixels per frame
Previous Standard Definition TV’s (SD) have included these:
CGA: 320×200
VGA: 640×480
SVGA: 800×600
Frame rates can be between 24 and 60 frames per second, and would be indicated on some models such as:
1920×1080p25
1920×1080p50
It is often stated that: High-definition televisions provide a picture quality that is substantially higher than that of standard-definition television.
This may be true for HDTV Broadcasts, however, when watching a Standard Definition broadcast, if you compare against the old style CDT screens, you do have to wonder about the accuracy of that statement.
1080i v 1080p
Even on technical sites, there is some confusion about the difference between 1080i and 1080p.
Both are 1,920 x 1,080 pixel resolution and both have 2,073,600 pixels.
It is however acknowledged that 1080i and 1080p aren’t the same thing, but they are the same resolution.
1080i is 1,920×1,080 pixels, running at 30 frames per second.
1080p is 1,920×1,080 pixels, running at 60 frames per second.
What does that actually mean? It means it is technical, and my eyes probably can’t see the difference
One LAST point.
I read a comment from someone calling themselves “Rodrian Roadeye”, and it brought a smile to my face, and some commonsense reasoning. This was it:
At age 56 I am convinced that picture quality is based on compatibility with your eyeglasses.
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