The difference between Minihdmi and HDMI in the graphics card

In simple terms mini-hdmi smaller, need special wiring, Mini and ordinary is a connection line, a mini a common, does not affect the quality. Mini HDMI is a popular term, the general common Big Head HDMI is called HDMI A type, rarely used is called HDMI B type, small head is called HDMI C type, that is, we often called the MINI-HDMI, there is a mobile phone and other portable devices, very much like the Mini USB is called HDMI D type.

HDMI can not only meet the 1080P resolution, but also support the digital audio format such as DVD audio, support eight channel 96kHz or stereo 192kHz digital audio transmission, and only a HDMI line connection, exempt from digital audio wiring.

The extra space available in the HDMI standard can be applied to future upgraded audio and video formats. Enough to handle a 1080p video and a 8-channel audio signal. And because of a 1080p video and a 8-channel audio signal demand less than 4Gbps, so HDMI also has a very dayu volume. This allows it to connect DVD players, receivers, and PRR with a single cable.

HDMI support EDID, DDC2B, so the device with HDMI has "Plug and Play" features, signal source and display devices will automatically "negotiate", automatically choose the most appropriate video/audio format.

Compared with DVI HDMI interface of smaller volume, DVI cable length can not exceed 8 meters, otherwise it will affect the quality of the screen, and HDMI can transmit 15 meters farthest. As long as an HDMI cable, can replace up to 13 analog transmission lines, can effectively solve the home entertainment system behind the tangled tangle of problems.

Types of HDMI

HDMI interface is divided into a, B, C, D4 types.

Where Class A (type a) is the most common, flat-screen TV or video device that provides this size interface, Type A has 19 pins, width 13.9 mm, thickness of 4.45 mm, now can see the device 99% are such size HDMI interface.

Class B (Type B) is very rare, with 29 stitches, width of 21 mm, transmission bandwidth is almost one times larger than a class, in the home application is too "strong", now only for some professional occasions.

Class C (Type C) is made for small devices with a size of 10.42x2.4 millimeters that is nearly 1/3 smaller than Type A and has a small range of applications.

Class D (Type D) is the newest interface type, with a further reduction in size, a double row pin design, a size similar to the miniUSB interface, and more suitable for portable and on-board equipment.

HDMI interface Although different, but the function is the same, usually the quality of the HDMI interface, plug life will not be less than 5,000 times a day plug can be used for 10 years, it should be said to be very durable. In addition, it is worth mentioning that HDMI can be backward compatible with the DVI interface, through the sale of the HDMI-DVI adapter, you can connect some older DVI equipment, because DVI also adopted a TMDS mode, equipment connected, will find DVI equipment without CEC (consumer Electronics control) Function, also cannot accept the audio signal, but basically does not affect the video signal transmission (may need to carry on the gray scale adjustment), therefore some only DVI interface's display, also may connect the HDMI equipment.