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True HDTV 1080p resolution query |
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#1 |
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Forum Member
Join Date: May 2004
Posts: 538
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True HDTV 1080p resolution query
I see lots of "HD ready" sets on the market and also the higher end that are branded with being able to display full 1080p pictures. But when I dig deeper on some screens the real output resolution is far lower than 1920x1080p pixel resolution so I'm a little wary of what to buy.
Been looking at the following 2 sets. By looking at their pixel's it seems these 2 are true 1920x1080 resolutions. Can someone confirm / deny this please. http://www.currys.co.uk/martprd/stor...ory_oid=-30633 and http://www.currys.co.uk/martprd/stor...&category_oid= Thanks. |
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#2 |
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Join Date: Dec 2004
Posts: 2,649
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They are both 1080p screens.
Absolutely no point getting a 1080p TV though - have a look at the panasonic plasmas - lower resolutions than LCDs yet produce a far better picture. -Chris |
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#3 |
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Join Date: Apr 2006
Location: North Derbyshire
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There are basically two resolutions:
HD Ready - 768 pixels Full HD - 1080 pixels. 1080 can either be 1080i or 1080P (both the same resolution, but essentially different frame rates), but 1080i is the only broadcast one. I suspect you're looking at an HD Ready 768 pixel set that will accept a 1080P signal (from Blu-Ray or something) and display it on the 768 pixel screen. Not all HD sets will accept a 1080P signal, not even the Full HD ones - but any 1080P source should be adjustable to 1080i instead. |
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#4 |
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Join Date: Sep 2004
Posts: 14,718
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Quote:
They are both 1080p screens.
Absolutely no point getting a 1080p TV though - have a look at the panasonic plasmas - lower resolutions than LCDs yet produce a far better picture. -Chris |
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#5 |
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Join Date: Jul 2006
Location: 18 miles from Sandy Heath
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There are some TVs that have an LCD panel with 1080 pixels but which don't support 1080p content. They only upscale 720 to 1080. Some TVs don't support 1080p on all of their HDMI inputs.
Not exactly full marks for either.. http://www.hdtvtest.co.uk/LG-42LF65/ http://www.hdtvtest.co.uk/Samsung-LE40M86BD/ |
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#6 |
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Join Date: Jul 2007
Location: Nottinghamshire
Posts: 1,098
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Quote:
There are some TVs that have an LCD panel with 1080 pixels but which don't support 1080p content. They only upscale 720 to 1080. Some TVs don't support 1080p on all of their HDMI inputs.
Not exactly full marks for either.. http://www.hdtvtest.co.uk/LG-42LF65/ http://www.hdtvtest.co.uk/Samsung-LE40M86BD/ |
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#7 |
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Join Date: Jan 2002
Location: Ilkeston
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Quote:
Not quite sure what your saying here, the Samsung LE40M86 does accept 1080P on all HDMI inputs?
He might be saying that their 1080p/24 support (HD DVD and Blu-ray sources) are not upto scratch which when you are buying a large HD 1080 display might be something worth considering even if you don't yet own a HD optical format. |
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#8 |
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Join Date: Jul 2007
Location: Nottinghamshire
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Sure but since June the Samsungs have supported 1080P/24 (From Firmware 1013) which gave an update to the EDID.
Mine is a May model which did not accept 24Hz. but today Samsung are fitting a new mainboard with the latest Firware to accept it. |
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#9 |
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Join Date: Jul 2003
Location: West Sussex, UK (Midhurst/CP)
Posts: 585
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Quote:
There are basically two resolutions:
HD Ready - 768 pixels Full HD - 1080 pixels. 1080 can either be 1080i or 1080P (both the same resolution, but essentially different frame rates), but 1080i is the only broadcast one. I suspect you're looking at an HD Ready 768 pixel set that will accept a 1080P signal (from Blu-Ray or something) and display it on the 768 pixel screen. Not all HD sets will accept a 1080P signal, not even the Full HD ones - but any 1080P source should be adjustable to 1080i instead. HD Ready 1080 has a minimum requirement of 1920 x 1080 and must accept 1080p signals. 768 is not a TV resolution, but is ideal for scaling freaks, who like to upscale to 1080i in their DVD players only for their TV to downscale to 768 before displaying the picture .
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#10 |
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Join Date: Apr 2006
Location: North Derbyshire
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Quote:
768 is not a TV resolution.
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#11 |
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Banned User
Join Date: May 2007
Posts: 2,447
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Get the Samsung and stay away from LG.
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#12 |
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Join Date: Jul 2006
Location: 18 miles from Sandy Heath
Posts: 382
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Quote:
Not quite sure what your saying here, the Samsung LE40M86 does accept 1080P on all HDMI inputs?
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#13 |
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Join Date: Jul 2007
Location: Nottinghamshire
Posts: 1,098
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Quote:
Yeah sorry I wasn't referring to the two TV's being considered when I wrote my reply.
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#14 |
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Join Date: Jul 2003
Location: West Sussex, UK (Midhurst/CP)
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Quote:
Don't you mean it IS a TV resolution, but NOT a broadcast resolution - where as 720 isn't a TV resolution, but is a potential broadcast one.
720 is a TV resolution (both in broadcast and receiver) - my TV is 1280 x 720 .
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#15 |
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Join Date: Apr 2006
Location: North Derbyshire
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Quote:
720 is a TV resolution (both in broadcast and receiver) - my TV is 1280 x 720
. |
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#16 |
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Join Date: Aug 2004
Location: Kent.
Posts: 805
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Nothing wrong with LG tvs. Quote:
Get the Samsung and stay away from LG.
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#17 |
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Join Date: Jun 2003
Location: Cheshire
Posts: 6,450
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Quote:
It's a pretty rare set then, they are almost all 768 pixels wide - what set is it?.
768 is more likely to be the number of pixels per vertical column, as is 720. Put two columns side by side and you start to build rows. Put 1280 columns together each with 720 pixels vertically and you get to a resolution of 1280x720. It gets confusing when people talk about horizontal lines of resolution (720, 768, 1080) as in 720p or 1080p. It seems to imply it's the number of horizontal pixels but it isn't. Some common pixel numbers for screen resolutions: 1280x720 1365x768 or 1366x768 1920x1080 All are valid HD resolutions, as is 1024x1024 resolution used in a lot of ALIS plasma panels from Philips, Fujitsu and others. These are less common now. Regards |
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#18 |
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Join Date: Jul 2003
Location: Staffordshire
Posts: 634
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Very impressed with my Samsung Full HD. There was a Full HD and a normal HD set side by side in the shop displaying text. You could see the jaggedness on the side of letters like w 's, whereas on the full HD it was smooth as.
Thats when I got sent the correct TV. Pixmania (a DSG company) decided to sell me the inferior one on their website, after I searched for the exact model number I wanted! |
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#19 |
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Join Date: Apr 2006
Location: North Derbyshire
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Quote:
I beg to differ, Sir.
768 is more likely to be the number of pixels per vertical column, as is 720. Put two columns side by side and you start to build rows. Put 1280 columns together each with 720 pixels vertically and you get to a resolution of 1280x720. ![]() But (hopefully) you knew what I meant?. Quote:
It gets confusing when people talk about horizontal lines of resolution (720, 768, 1080) as in 720p or 1080p. It seems to imply it's the number of horizontal pixels but it isn't. Some common pixel numbers for screen resolutions: 1280x720 1365x768 or 1366x768 1920x1080 |
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#20 |
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Forum Member
Join Date: Jun 2003
Location: Cheshire
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Quote:
You don't see many 720 panels though, do you have any examples? - is it perhaps on smaller sets?.
Edit: Some of the entry level Panasonic plasmas use a 1024x720 panel. go to http://www.panasonic.co.uk/plasma-tv/index.htm It's not 1280x720, but is a native 720p panel. Regards Chris Last edited by Chris Frost : 20-12-2007 at 11:32. Reason: extra info |
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#21 |
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Forum Member
Join Date: Mar 2004
Location: Herts
Posts: 2,378
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The bottom line is that electronics companies have made HD far too complicated, as well as the different resolutions you have framerates, panels which are one resolution but only display another scaled to fit and so on.
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