TMitchell
Punta Gorda, Fl.
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We are looking at a Sharp 46" LCD TV that has 1920X1080P. It costs $50 more then an almost identical Sharp that only has 1080P. Could someone explain what the difference is?
Thanks,
Tom
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MrWizard
Van Nuys, Ca
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i'll try
1080P refer's to the number of scan lines and the way the video frames are displayed ( it is NOT a pixel count, like in PC display res )
1080P is the highest number of scan lines being transmitted for digital HD in the USA, the 'P' means Progrssive, the video is display (1) full frame '1080-lines' vs normal std def TV where the display is 552 lines of interlaced show as every other line 'half frames'
interlaced TV shows 60 half frames every second first the odd lines, then the even lines. progressive TV shows 60 full frames every second, ( yes we all know it s 30fps on OLD TV )
1920 is defining the number of Horizontal pixels in each scan line,
so the 1920*1080P has 1920 pixels in each 0f the 1080 lines of display
the 1080p is not telling you how many horizontal pixels there are, could be 1920, could be 1260, could be 2048
no way of knowing without tracking down the specs on the LCD display
IF you can't tell the difference in the picture , it will make no difference to you , unless you intend to hook the TV to a PC as a media center.
in that case i believe you will want 1920*1260 display res
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TMitchell
Punta Gorda, Fl.
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Thank you for the good information.
Tom
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1492
Virginia, USA
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If it refers to an LCD HDTV, then it's the same thing. There is no difference. 1080P/1080i are just generic terms for 1920x1080(P-progressive/i-interlaced scan). There must be some other reason for the $50. difference.
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RVUSA
Orlando, FL, USA
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I thought most everything was in 720P and that just a very few cable signals and blu ray actually had 1080P.
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TMitchell
Punta Gorda, Fl.
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1492 wrote:If it refers to an LCD HDTV, then it's the same thing. There is no difference. 1080P/1080i are just generic terms for 1920x1080(P-progressive/i-interlaced scan). There must be some other reason for the $50. difference.
Both 46" Sharp TVs are on sell at Walmart. That was the only difference I could see between them.
Tom
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Retired Phone Man
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RVUSA wrote:I thought most everything was in 720P and that just a very few cable signals and blu ray actually had 1080P.
No one broadcasts in 1080P. The most common is 480I, 480P, 720P and 1080I, Even my cable box upconverts everything to 1080I and then the TV converts to 1080P.
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1492
Virginia, USA
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TMitchell wrote:
Both 46" Sharp TVs are on sell at Walmart. That was the only difference I could see between them.
Tom
It might use a different LCD panel itself, one that has a higher contrast range or uses a higher refresh rate. Are there any specs. printed on the box for comparison?
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8.1 Van
Millstone NJ
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TMitchell wrote:We are looking at a Sharp 46" LCD TV that has 1920X1080P. It costs $50 more then an almost identical Sharp that only has 1080P. Could someone explain what the difference is?
Thanks,
Tom
The number "1080" represents 1,080 lines of vertical resolution (1080 horizontal scan lines) and 100% of 1080p HDTV's have 1920x1080 resolution.
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