Robert Silva has actually written around audio, video, and home theater topics since 1998. Robert has written for Dishinfo.com, and made appearances ~ above the YouTube collection Home theater Geeks.

You are watching: Can a 720p tv display 1080p


720p and 1080i are both high-definition video clip resolution formats, yet that is whereby the similarity ends. Differences in between the two may impact the TV friend buy and your the town hall experience.


This information uses to televisions indigenous a range of manufacturers including, however not minimal to, those do by LG, Samsung, Panasonic, Sony, and Vizio.


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Video Resolution graph - 480i to 1080p.mage via Wikimedia Commons - public Domain

What 720p Is

720p is a photo containing 720 rows of 1,280 pixels. 720 horizontal currently or pixel rows appear on a TV or various other display an equipment progressively, or each line or row sent out following an additional (that is wherein the "p" come from). The whole image refreshes every 60th that a second (or twice every 30th of a second). The total number of pixels displayed on the whole 720p display screen surface is 921,600 (slightly much less than 1 megapixel in digital camera terms).


What 1080i Is

1080i is a snapshot containing 1,080 rows the 1,920 pixels. All the odd present or pixel rows are sent out to the TV first, complied with by every the even lines or pixel rows. Since a 1080i is interlaced, only 540 present (or fifty percent the detail) are sent every 60th that a second, with all the information sent every 30th the a second. 1080i produces more detail than 720p, but because the increased detail is only sent every 1/30th of a second, fairly than 1/60th of a second, fast-moving objects will certainly exhibit slim interlacing artifacts, i beg your pardon can show up to look like jagged edge or a contempt blurred effect. The total number of pixels in a complete 1080i signal, once both interlaced lines or rows space combined, totals 2,073,600. However, only about 1,036,800 pixels are sent every 60th of a second.


Although the variety of pixels because that 720p or 1080i screen screen remains continuous regards of display screen size, the size of the display screen determines the variety of pixels per inch.


720p, 1080i, and Your TV

HDTV broadcasts indigenous your regional TV station, cable, or satellite business are one of two people 1080i (such together CBS, NBC, WB) or 720p (such together FOX, ABC, ESPN). However, that does not typical you space seeing those resolutions on your HDTV screen.


1080p (1920 x 1080 currently or pixel rows progressively scanned) is not provided in TV broadcasting, yet is used by part cable/satellite providers, web content streaming services, and is a part of the Blu-ray Disc layout standard.


Most TVs that space labeled as 720p TVs actually have actually a integrated pixel resolution the 1366x768, i beg your pardon is technically 768p. However, they room usually advertised as 720p TVs. Don"t obtain confused; this sets will certainly all accept 720p and also 1080i signals. What the TV needs to do is range the just arrived resolution to its built-in 1366x768 pixel display resolution.


Another vital thing to point out is the LCD (LED/LCD), OLED, Plasma, and also DLP TVs can only display screen progressively scanned images — castle cannot screen a real 1080i signal.


If a 1080i signal is recognize on among the over TV types, it needs to scale that signal to one of two people 720p or 768p (if the is a 720p or 768p TV), 1080p (if that is a 1080p TV), or also 4K (if it is a 4K Ultra HD TV).


As a an outcome of scaling, the quality of the picture you watch on the display depends on just how well the TV's video clip processor works. If the TV's processor walk a good job, the picture will display screen smooth edges and have no noticeable artifacts for both 720p and 1080i intake sources.


A sign that a processor is not doing a good job is come look for any kind of jagged edges on objects in the image. This will certainly be much more noticeable on just arrive 1080i signals as the TVs processor only has to scale the resolution up to 1080p or under to 720p (or 768p), but additionally has to perform a task referred to as "deinterlacing".


Deinterlacing calls for that the TV's processor incorporate the odd and also even present or pixel rows the the just arrive interlaced 1080i photo into a single progressive image to be shown every 60th of a second. Some processors do this really well, and some don't.


The Bottom heat

Don't acquire bogged down v all the numbers and also tech terms. The main thing come remember is the there is no such thing as a 1080i LCD, OLED, Plasma, or DLP TV.


If these types of TVs are advertised as a "1080i" TV it way that if it have the right to input a 1080i signal, it needs to scale the 1080i image to 720p or 1080p for display screen display.


Whether inputting a 1080i signal on one of two people a 720p or 1080p TV, what you finish up seeing on the display is the an outcome of countless factors in enhancement to resolution, including screen refresh rate/motion processing, color processing, contrast, brightness, background video noise and artifacts, and video clip scaling and processing.

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With simply a few exceptions, 720p TVs have actually been relegated to 32-inches and also smaller display sizes. You will likewise find a growing variety of 1080p TVs in that display screen size or smaller as well but through 4K Ultra HD TVs getting less expensive, the number of 1080p TVs in 40-inch and larger display sizes are also becoming much less numerous.