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Resolution question
- Thread starter Cheekykid
- Start date
Soldato
- Joined
- 5 Aug 2006
- Posts
- 11,431
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- Derbyshire
720p tv
Yes indeed. I wanna buy a cheapish lcd and most come with 1366x768 resolution so i wanna make sure there will be no scaling or stretched images on my lcd. Am looking for a page where it says the supported resolution as under windows this resolution is missing
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just FYI :
There is no 3rd resolution of 1366 x 768 in any HD source.
It is all about firmware scaling engine ( video processing chips ) in the display.
If you own a 1366 x 768 display then your image has been mashed about and re-scaled to fit your screen. Period. Meaning: you will not ever get a pixel for pixel rendering of anything coming into your display, so all this talk of "pristine 720p" from my 720p plasma display is bunk usually unless your display has an exact 1280 mode. Its no longer the video frame that the producer saw. Instead you actually are seeing an upscaled version created by the pixel scaler firmware with quality that the display manufacturer wanted to put into the HDTV.
Just because it is scaled does not mean it is not great imaging, some displays do a fantastic job of resizing and de-interlacing. Some 1366 displays do such a fuzzy job of scaling that the image seems about the same as regular TV, just bigger and wider, not Higher in Definition.
WHY does 1366 x 768 exist?
This has to do with a 1 megapixel processing boundary of easily available chipsets for VRAM ( video memory ) and video processing display drivers. Its a standard memory size of importance to chip makers. Makes for cost productive configurations where the Input / Output systems are built off of already available OEM devices, so basically the Manufacturer is more in the business of flatpanel Glass making and bezel/speaker situations on a large display. The functional basic math:
1 megapixel
1024 x 1024 = 1048576 pixels
1366 x 768 = 1049088 pixels 16 by 9 image
720p = 1280 x 720 = 921600 pixels. 16 by 9 HD standard .
720p is just under 1 megapixel of data per screen.
If they really wanted to make a 720p specific display, it would be 1280 x 720 pixels, but they decided to get every last bit they could into the viewable pixel space and that is what makes for 16 by 9 numbers to become 1366 across and 768 vertically. In fact 768 is a common vertical resolution memory boundary. Why get more pixels up into the glass and use 1366 x 768? ... because more pixels is better image resolution.
A 1366 x 768 image is ALWAYS SCALED
To Get HD from this means your image is at the mercy of scaling that makes 720 or 1080 source practically irrelevent to you, since whatever you see is processed and spit out by something you have almost no control over after your purchase. I trust Sony and Westinghouse digital, LG on some units. You must see it in the store in my opinion. Asking about scaler technology from most sales people will get you nowhere.
1366x768 is where the industry has not properly explained itself.
There is no 3rd resolution of 1366 x 768 in any HD source.
It is all about firmware scaling engine ( video processing chips ) in the display.
If you own a 1366 x 768 display then your image has been mashed about and re-scaled to fit your screen. Period. Meaning: you will not ever get a pixel for pixel rendering of anything coming into your display, so all this talk of "pristine 720p" from my 720p plasma display is bunk usually unless your display has an exact 1280 mode. Its no longer the video frame that the producer saw. Instead you actually are seeing an upscaled version created by the pixel scaler firmware with quality that the display manufacturer wanted to put into the HDTV.
Just because it is scaled does not mean it is not great imaging, some displays do a fantastic job of resizing and de-interlacing. Some 1366 displays do such a fuzzy job of scaling that the image seems about the same as regular TV, just bigger and wider, not Higher in Definition.
WHY does 1366 x 768 exist?
This has to do with a 1 megapixel processing boundary of easily available chipsets for VRAM ( video memory ) and video processing display drivers. Its a standard memory size of importance to chip makers. Makes for cost productive configurations where the Input / Output systems are built off of already available OEM devices, so basically the Manufacturer is more in the business of flatpanel Glass making and bezel/speaker situations on a large display. The functional basic math:
1 megapixel
1024 x 1024 = 1048576 pixels
1366 x 768 = 1049088 pixels 16 by 9 image
720p = 1280 x 720 = 921600 pixels. 16 by 9 HD standard .
720p is just under 1 megapixel of data per screen.
If they really wanted to make a 720p specific display, it would be 1280 x 720 pixels, but they decided to get every last bit they could into the viewable pixel space and that is what makes for 16 by 9 numbers to become 1366 across and 768 vertically. In fact 768 is a common vertical resolution memory boundary. Why get more pixels up into the glass and use 1366 x 768? ... because more pixels is better image resolution.
A 1366 x 768 image is ALWAYS SCALED
To Get HD from this means your image is at the mercy of scaling that makes 720 or 1080 source practically irrelevent to you, since whatever you see is processed and spit out by something you have almost no control over after your purchase. I trust Sony and Westinghouse digital, LG on some units. You must see it in the store in my opinion. Asking about scaler technology from most sales people will get you nowhere.
1366x768 is where the industry has not properly explained itself.
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