HDMI HD line SD, HD, HD have what distinction
SD, namely the standard definition, is the physical resolution below 720presolution in about 400 lines of VCD, DVD, TV programs "SD" video format.720p refers to the vertical resolution of the video for the 720 line by line scanning.
HD, (English expressed High Definition) referred to as HD, physical resolutioncan reach above 720p is known as hd. Regarding HD standard, internationally recognized two: video vertical resolution than 720p or 1080i; video aspect ratio is 16:9.
For the "HD" and "SD" division first from can see video effects. As the imagequality and transmission the bandwidth is different, which makes the digital TVsignal into HDTV (high definition television), SDTV (standard definition television) and LDTV (standard definition television).
HDTV from the visual effects of the highest specifications, the image quality can be achieved at or near the 35mm wide screen film level, it requires thevideo content and display device, a horizontal resolution of 1000 lines above,highest resolution up to 1920 x 1080
From the quality point of view, the HD resolution basically the equivalent of 4times of the traditional analog TV, picture clarity, color reduction degree arefar better than the traditional tv. While the 16:9 widescreen display also bringsa broader vision to enjoy. From the audio effect, high-definition TV programswill support Dolby 5.1 surround sound, and HD video programs will support theDolby 5.1 True HD specifications, this will bring us the enjoyment of hearing the super shock.
In fact, "HD" and "SD" can not be a simple comparison, they are just twodifferent video format, video signal they can load different quality, so the actualquality has a great relationship with the video signal quality of the load, this is equivalent to using a water tank and a tea cup of water, water tank can be installed a a large tank of water, also can only a cup of water, when only a cup of water can not say that it contained more water than in the cup a cup of water to.
HD FULL Full HD so-called Full HD (FULL HD), refers to the physical resolutionup to 1920 x 1080 shows (including 1080i and 1080P), where I (interlace)refers to an interlaced scan; P (Progressive) represents the progressive scan,both of which have a great difference in the picture fine degrees, 1080P image quality than 1080i. Corresponding to 720 is called a standard hd. Obviously,because the data in the process of transmission of information more abundant,so 1080 more in the resolution advantage, especially in the big screen TV,1080 can ensure a more clear picture.