Display a comprehensive analysis of various interfaces

Often see friends in the evaluation mentioned in the article, how it monitors without HDMI interface? It seems that without HDMI interface displays a big disadvantage. Why is that HDMI interface so popular? It can be said, HDMI is an interface most commonly seen in our daily life, which is widely used in home multimedia devices.

April 2002, Hitachi, Panasonic, Philips, Silicon Image, Sony, Thomson, Toshiba seven companies jointly established the HDMI high-definition multimedia interface organization, began to develop a line with high-definition era standards of new digital audio / video interface technology. After more than six months of preparation, HDMI organization in December 9, 2002 officially released HDMI 1.0 standard, marking the formal entry into the stage of history HDMI technology.

High Definition Multimedia Interface (English: High Definition Multimedia Interface, HDMI) is a digital audio / video interface technology, is a special type of digital interfaces for video transmission, which can transmit audio and video signals, the maximum data transfer rate of 2.25 GB / s

characteristic:

1, the latest HDMI1.4 standard, can support 4Kx2K resolution transmission has Ethernet channel, audio return channel, 3D capabilities, and so on.
2, support for 4K resolution output, is now supported 4KK TVs and monitors to improve the foundation.
3, support for 3D features to meet the needs of 3D display TV signal transmission.
4, it can support more than 30 color space, in a variety of standards, are able to display the most vivid bright colors.

HDMI is a digital interface, since all analog connections (such as component video or S-video) requires no losses when converted from analog to digital, so it provides the best video quality. This difference in higher resolution, for example, is particularly evident when 1080p. Digital Video sharper than component video, eliminating the softness and smearing component video found. Such small, such as text, high-contrast detail will this difference to the limit. In addition, the HDMI interface is widely used, there are many reasons, which also extends a variety of sizes HDMI interface, there are Micro, mini HDMI and standard HDMI interface.

DisplayPort (abbreviated DP):

DP interface, DVI is the successor, there are now common DisplayPort interface and Apple developed miniDP interface. DP interface relative to DVI is, a lot of progress, bandwidth and customization above, there is a qualitative change.

In May 2006, the Video Electronics Standards Association (VESA) to determine the version 1.0 standard, and upgrade to version 1.1 in six months, provides support for HDCP, the version 2.0 also plans to launch this year. HDMI and UDI as competitors and potential successor to DVI, DisplayPort won the support of AMD, Intel, NVIDIA, Dell, HP, Lenovo, Philips, Samsung and other industry giants, and it is free to use.

1, DP Interface External longest distance can reach 15M, the rate can reach 10.8Gb / S, supports 2560x1600 resolution and 30 / 36bit color depth.
2. It also allows audio and video signals a public cable transmission, support a variety of high-quality digital audio.
3, in addition to its four main transmission channels, it also provides a powerful auxiliary channel bandwidth of 1Mbps, the maximum delay of only 500us, can achieve a variety of functions.
4, Apple miniDP interfaces, more powerful, the interface is not only compact, but also be able to support a variety of compatible interface, only need to add an adapter only.

DP interface is currently the latest 1.3 standard, speed up to 21.6Gb / s, 4K resolution can be reached directly support, mainly used in PC, which is why the current 4K monitors with reason DP interface.

 DP and HDMI interface comparison:

HDMI Advantage: HDMI supports multiple products, more mainstream
Disadvantages: poor support for the PC compatible, can not support 3 or 6 screen multi-screen output

DP advantages: PC Support perfection, to support three screen 6 screen output
Disadvantages: out late, non-mainstream