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Television images are made of horizontal lines. 1080 indicates that the image is a high definition one and uses 1080 lines to create the image. The "i" and "p" define how the lines will be delivered.
"i" stands for interlaced. An interlaced picture will start by showing all the odd numbered lines from 1, 3, 5 etc to line 1079. Then, starting at the top of the screen, all the even numbered lines will be shown from 2 to 1080. so in two passes from the top to the bottom, every line will be shown. the passes each happen 50 or 60 times each second so a full frame will be shown 25 or 30 times each second.
"p" stands for progressive. A progressive scan starts at the top of the screen and shows each line in order from line 1 to line 1080. A single pass is all that is needed to build a full image. That means that a full frame will be delivered 50 or 60 times each second. It is easy to see that a progressive signal displays lines at twice the rate of an interlaced signal. It therefore needs to send twice as much data as an interlaced signal.
Broadcasters do not transmit 1080p at the moment and are unlikely to do so for at least a few years. The standard broadcast HD signals are 1080i (and 720p). Most HD televisions will handle 1080p signals but they are found only on local sources such as Bluray, games consoles and computers.
In practical terms, the difference between "i" and "p" is that progressive signals show smoother movement compared to interlaced. For most programs, the difference is not obvious so the lack of a 1080p signal from broadcasters is not a big deal.
A final note on the frame rates: North America uses a 60Hz rate as standard while Europe uses 50Hz. The reason is a historical one but the frame rates will not be changing for either region any time soon.
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What is the difference in 1080p and 720p technology in HD tv?
High definition television uses one of three common formats - 720p, 1080i and 1080p.720p indicates that there are 720 lines in the image. The "p" means "progressive" and a complete image is delivered 50 or 60 times each second.1080i shows that there are 1080 lines. The "i" stands for "interlaced" and the image is sent in two halves so a half image is sent 50 or 60 times each second but the full frame is sent only 25 or 30 times each second.1080p is also made up with 1080 lines but the "p" shows that a full image is delivered 50 or 60 times each second.Broadcasters use 720p or 1080i. These are both full HD signals. Although the 720 line image has a lower resolution, it is updated twice as fast. The data rate for 720p and 1080i is the same. Although 720p is less common than 1080i, it is used by broadcasters for some fast action content such as sports.1080p updates the image at twice the rate of 1080 and therefore uses double the bandwidth. Broadcasters do not send out 1080p and it is restricted to local sources such as Bluray, games consoles etc.
What is the frequency range of video signals?
Video signals have a wide range of data rates and frequencies. Analog standard definition signals such as PAL and NTSC are int he region of 5 - 6MHz for composite signals. Component signals for standard definition can be somewhat higher at 12 - 15MHz. Digital signals are measured in bits per second rather than a frequency. Standard definition digital signals in a studio can be 270 Mbits (million bits per second) or 360 Mbits for some signals. HD signals run at 1.483 gigabits per second, about five times faster than SD signals. 1080p signals use 2.966 Gbits, twice the data rate compared to 1080i or 720p. Domestic HDMI cables carry similar data at similar rates although the data is split across several separate signals. Broadcast standards use a single co-ax to carry all data.
Do you need a 1080p tv to watch Blu-ray discs?
There are several HD television formats, all agreed with the international standards organisations. The main formats are 720p 1080i and 1080p. Virtually all HD televisions will handle all formats although some of the earliest HD televisions don't operate with 1080p signals. Later televisions are capable of displaying 1080p as well as other formats. Every HD television has a native resolution. Often, the screen is made up with 1920 x 1080 pixels. All incoming signals are resized to the native resolution. A 720 line signal will be processed to be displayed on the 1080 lines of the display. Similarly, a 1080 line image will be resized to display on 720 or 768 lines if that is the television's native resolution. Therefore, an LCD television with a native screen resolution of 720 lines will be capable of displaying a 1080 line image.
If a sony blu ray player is set up at 1080p and is set up to a HDTV at 1080i will it play a blu ray disc with high definition sound and picture?
I have a sony bluray player conected to my tv by a hdmi cable only it wont work can anyone help me --------------- Go into the menu and set the output resolution to either 720p or 1080i and it should work on any HDTV that's not 1080p. If it doesnt, don't use an HDMI cable - use Red/Green/Blue (Component Video) cables to hook up to the TV. It will work fine at 720p. You will also need to connect additional red and white cables for sound.
What is mean by resolution 1920x1080?
Resolution is the number of pixels that make up the picture on your t.v. or computer screen. 1920x1080 means that there are 1,920 individual colored points of light across your screen's width and 1,080 across its height for a total of 2,073,600 pixels. Each pixel is capable of changing color as needed to display images on your screen. The higher the screen's resolution, the clearer the images it can display.
Is a 1080i TV compatible with 1080p cable?
Most modern LCD/Plasma TV's are capable of receiving and displaying 720i, 720p, 1080i and 1080p signals. Therefore your TV, if it can receive 1080i, should be quite happy with a 1080p signal.
What is the difference between 1080p and 1080i HDTV?
1080i and 1080p are both High Definition display formats for HDTVs. 1080i and 1080p signals actually contain the same information. Both 1080i and 1080p represent a 1920x1080 pixel resolution (1,920 pixels across the screen by 1,080 pixels down the screen). The difference between 1080i and 1080p is in the way the signal is sent from a source component or displayed on an HDTV screen. In 1080i each frame of video is sent or displayed in alternative fields. The fields in 1080i are composed of 540 rows of pixels or lines of pixels running from the top to the bottom of the screen, with the odd fields displayed first and the even fields displayed second. Together, both fields create a full frame, made up of all 1,080 pixel rows or lines, every 30th of a second. In 1080p, each frame of video is sent or displayed progressively. This means that both the odd and even fields (all 1,080 pixel rows or pixel lines) that make up the full frame are displayed together. This results in a smoother looking image, with less motion artifacts and jagged edges. 1080p can also be displayed (Depending on the video processing used) as a 1080p/60 (Most common), 1080p/30, or in 1080p/24 formats. 1080p/60 is essentially the same frame repeated twice every 30th of a second. (Enhanced video frame rate.) 1080p/30 is the same frame displayed once every 30th of a second. (Standard live or recorded video frame rate.) 1080p/24 is the same frame displayed every 24th of a second (Standard motion picture film frame rate.)
Why is your 1080p television showing 1080i?
It's to do with the resolution. The 1080 identifies the number of lines that create the image, so 1080p and 1080i have the same number of lines. The letter stands for the type scan the TV uses. The P stands for progressive and the I stands for interlaced. Progressive will process the image twice as fast as interlaced and therefore produces better colour and clarity.
How do i know if my HDMI cable that's hooked up to my 1080i hdtv is 1080p?
The TV decides whether it is a "i" or a "p". The cable will pass both types of signals.
Can you play 720p on composite cable?
Composite video signals are used with standard definition video. There is no composite encoding system for HD signals. As 720p, 1080i and 1080p are all HD signals, they cannot be carried on a composite signal.
Does cox cable use 1080p?
Negative, no networks broadcast in 1080P yet, it does 720P and 1080i
What gives the better picture 1080i or 1080p?
Both 1080i and 1080p have the same resolution. That means that the amount of detail will be identical with either. However, 1080p delivers a complete image 50 times per second in Europe or 60 times per second in North America. 1080i delivers half of the image in the same time, followed by the other half in the following field. It follows that sports and other fast moving images will be better on 1080p than 1080i and that is indeed the case when the two are compared. The problem with 1080p is that it is not being broadcast at present and won't be for a number of years. 1080p required twice the bandwidth and twice the storage space. Broadcasters don't presently have equipment to handle live 1080p content. Most new televisions will handle 1080p but even if it does, sport that is broadcast in 1080i will never become 1080p quality. There is no need to worry though. 1080i delivers some great images even for sport. It is worth mentioning that the other HD standard, 720p offers a lower resolution than 1080 but it delivers a full frame 50 or 60 times each second. The bandwidth is the same as 1080p so the image detail is sacrificed a little for the sake of a faster frame rate. Some broadcasters in North America are using 720p but not all. In Europe, 720p is hardly ever seen with broadcasters all moving to 1080i as their standard.
Do they broadcast in 1080i?
The best quality pictures come from 1080P
What is the best T.V. for ps3?
One with 1080p and 1080i compatability
Does Charter Communications broadcast in 720P or 1080P?
No, only 1080i. 1080p is currently only found on local video sources such as games consoles and computer displays. Broadcasters are currently using only 1080i and 720p as their HD formats.
Is the ox pro series 4 projector fully 1080p?
no its 1080i
What TV formats are HDTV?
If the TV is 1080i, 1080p or 720p, they are HDTV.
