Full screen process

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The full-screen process (also English Progressive Scan [ pɹəˈɡɹɛsɪv skæn ], for "progressively carried out scanning") describes a technique in the image construction of monitors , projectors and other display devices, in which the output device - unlike the interlaced process - does not receive interlaced fields , but rather with real full frames. This makes the picture appear sharper and calmer, and line flicker is completely eliminated. Televisions need either an analog VGA or YPbPr input ( component video ) or a digital DVI , DisplayPort or HDMI connection to transmit this signal .

There are two ways of transmitting full images: as a whole (progressive) or as two successive fields with the same time index ( progressive with segmented frames , psF ). With the second method, the simple deinterlacing method Weave must be used before the display . This also works with conventional transmission methods such as PAL , SECAM or NTSC with a simple additional signal and is also used by DVD players and game consoles . The HDTV format 1080i is also used in this mode, whereas 720p is broadcast with real full frames if the TV cameras also record in 720p mode. Since the amount of data transferred remains roughly the same for both, the higher line or vertical resolution (so-called Full HD) halves the temporal resolution.

In the future UHD TV, only full-screen recording and playback will be provided (2160p50 or 60), but in the test environment without full HDMI2.0 interfaces, the temporal resolution must still be 25 or 30 fps due to the limited HDMI1.4 data rate be restricted. Decoders for the full scope of UHD-1 (4: 2: 2 with 10 bit color resolution, 50/60 fps) will not be available before 2017/18.