full screen conversion: English designation deinterlacing. Designates a necessary process when displaying fields in the interlaced scanning on a playback device that can only physically display full images. These include, among other things Plasma and LCD Flat screens and projectors (LCD and DLP).
The frame conversion tries to generate the missing lines of a field from the total information of the video data stream, so that the display with a full screen (frame) can be controlled. While the scanning of frames as fields is child's play - it just becomes every second row discarded or not sent - the full screen conversion is an error-prone and very time-consuming process. Last but not least, the algorithms of the process used significantly determine the achievable reproduction quality of an image.