720P it represents the resolution. The resolution mainly includes: 240 x, 640 x 400, 640 x 480, x 600, 1024 x 768 1280 x 720 (720P SD), 1600 x 1200, 1920 x 1080 (1080P Full HD). So here's 720P is the 1280x720 screen resolution. The average film does not reach the resolution of 720P, it is a little unclear to watch. So this is when users download the power to see if the file is up to 720P SD situation will go to download.
But 720P it is the resolution 1280x720. It is a professional term for a monitor screen. 720P is a display format that achieves 1280x720 resolution in line-by-row scans. is the integration of digital film imaging technology and computer technology. It's usually applied to monitors, LCD TVs, and some phone screens. Display technology in the continuous improvement, now the mobile phone display screen can basically reach the 720P resolution. The monitor we are viewing has also popularized the 720P resolution screen. The higher the screen resolution, the better the input quality of the corresponding display. But generally the 720P resolution of the words is basically SD. Relatively speaking, the effect can basically meet the needs of users.
For my users to watch some high-definition programs, in fact, the concept of 720P, 1080i and 1080P has no practical significance, here as an understanding. With 720 representatives 1280*720,1080 represent 1920*1080, because even 1080i of images, flat-screen TVs can be processed into 1080P. For flat-screen TVs, 720P, 1080i and 1080P more meaningless, flat-screen TV can be considered as a line-by-row, the definition of resolution, according to the HD GB requirements to achieve at least 1280*720, of course, the 1920*1080 physical resolution is the best, but this and 720P, 1080i and 1080P are no longer related. The only thing that needs the 720P, 1080i, and 1080P concept is the high-definition camera, but for the TV viewers, we just watch the show, as for what format the video camera program, the user experience will not affect the effect.