电影格式和版本及高清相关知识（Movie format and version and HD related knowledge）.docVIP

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电影格式和版本及高清相关知识（Movie format and version and HD related knowledge）.doc

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电影格式和版本及高清相关知识（Movie format and version and HD related knowledge）

电影格式和版本及高清相关知识（Movie format and version and HD related knowledge） Movie format and version and HD related knowledge What is HD? HD, English for High Definition, meaning high resolution. Generally speaking, HD has four meanings: high-definition TV, high-definition equipment, high-definition format, high-definition movies. HDTV, also known as HDTV, is a standard format for high-definition television set by the American film and television engineers association. HD is the most commonly referred to as hdtv. The definition of television is measured by the number of horizontal scanning lines. The following is a television scanning format of several common D1 480i format, and NTSC analog TV the same definition, 525 vertical scanning lines, shows that the vertical scanning lines, 3 or 16 interlaced /60Hz, 483 4:9, frequency is 15.25KHz. D2 480P format, the same specifications and progressive scan DVD, vertical scanning lines, 525480 shows that the vertical scanning lines, 3 or 16: a resolution of 640 * 480, 4:9, /60Hz line 31.5KHz line. D3 is the standard format for 1080i, digital TV display mode, 1125 vertical scanning lines, 1080 shows that the vertical scanning lines, 9, 16: a resolution of 1920 x 1080, interlaced /60Hz, frequency is 33.75KHz. D4 is the standard format for 720p, digital TV display mode, vertical scanning lines, 750720 shows that the vertical scanning lines, 16:9, resolution of 1280 x 720, progressive /60Hz, 45KHz line. D5 is 1080p format, standard digital TV display mode, 1125 vertical scan lines, 1080 visible vertical scanning lines, 9, 16: resolution 1920 x 1080, progressive scanning, professional format. In addition, there are 576i, the standard PAL TV display mode, vertical scan line, 625576 visible vertical scanning lines, 3 or 16: interlaced /50Hz, 4:9, denoted as 576i or 625i. HDTV refers to television standards that support 1080i, 720P, and 1080P. Now the large screen LCD TV, generally support 1080i and 720P, and some commonly known as the full H