Main modes of HD video technology

From a technical point of view, there are currently three main modes of high-definition video technology:

1. 720P: 1280 × 720 (non-interlaced, field frequency is 24, 30 or 60) is D4 standard digital TV display mode, 60hz frequency, 750 vertical scanning lines, 720 visible vertical scanning lines, 16: 9, remember 720p or 750p.

2. 1080i: 1920 × 1080 (interlaced, field frequency 60) is the D3 standard digital TV display mode, 60hz frequency, 1125 vertical scanning lines, 1080 visible vertical scanning lines, 16: 9, which is recorded as 1080i or 1125i.

3.1080P: 1920 × 1080 (non-interlaced, field frequency is 24 or 30) is the D5 standard digital TV display mode.

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