{"id":40276,"date":"2019-08-28T12:14:57","date_gmt":"2019-08-28T10:14:57","guid":{"rendered":"https:\/\/magazinnew.reichelt.de\/magazin\/uncategorized\/the-displayport-interface-what-is-displayport\/"},"modified":"2023-08-30T11:33:40","modified_gmt":"2023-08-30T09:33:40","slug":"the-displayport-interface-what-is-displayport","status":"publish","type":"post","link":"https:\/\/www.reichelt.com\/magazin\/en\/guide\/the-displayport-interface-what-is-displayport\/","title":{"rendered":"The DisplayPort\u2122 Interface – What is DisplayPort\u2122?"},"content":{"rendered":"\n

DisplayPort\u2122 is a universal connection standard standardized by the VESA (Video Electronics Standards Association). It is a digital interface for the transmission of video and audio signals. In contrast to HDMI, which is mainly used for TV and multimedia devices such as beamers, game consoles and DVD players, DisplayPort\u2122 is primarily used in information technology, i.e. PCs, notebooks, tablets and monitors in general.<\/p>\n\n\n\n

\"DisplayPort\u2122<\/a>
DisplayPort\u2122 1.2 connector<\/figcaption><\/figure>\n\n\n\n

DisplayPort\u2122 should have more high performance features than any other digital interface. The technology was developed to replace older standards such as DVI and VGA. DisplayPort\u2122 is intended to open up new possibilities in the areas of PC technology, digital displays and consumer electronics. It is called the standard of the future and is already available today.<\/p>\n\n\n\n

<\/div>\n\n\n\n

DisplayPort\u2122 Version History<\/h2>\n\n\n\n

Version 1.0<\/h4>\n\n\n\n

In May 2006 the specification of the standard is published for the first time by VESA.<\/p>\n\n\n\n

Version 1.1<\/h4>\n\n\n\n

The first final version is defined in April 2007. DP 1.1 allows data transmission in two different data rates (HBR and RBR: High Bit Rate and Reduced Bit Rate). The maximum transmission rate using all lanes with a cable up to two meters long is 8.64 Gb\/s, which is sufficient for HDTV and larger monitors.<\/p>\n\n\n\n

Copy protection is provided by encryption with HDCP 1.3 (High-bandwidth Digital Content Protection) and DPCP (DisplayPort\u2122 Content Protection). In this version also the dual-mode DisplayPort\u2122 (short: DP++) is introduced, more about this below at The feature DP++. The first devices with DisplayPort\u2122 will be launched at the beginning of 2008.<\/p>\n\n\n\n

Version 1.2<\/h4>\n\n\n\n

DP 1.2 will be released in December 2009. A significant change is the increase in the data transfer rate to a maximum of 17.28 Gb\/s using the four lanes. For the first time the resolution UHD-1 (4 K Ultra HD) and MST (Multi stream transport) is supported. Now several independent video streams can be transmitted and several monitors can be connected according to the daisy chain principle – via a single DisplayPort\u2122 connection.<\/p>\n\n\n\n

Version 1.3<\/h4>\n\n\n\n

In the version confirmed in September 2014, the data rate per lane has been increased again, now a total of up to 25.92 Gb\/s can be transmitted. Via MST it is now also possible to control several UHD-1 (4K Ultra HD with 3840 \u00d7 2160 pixels) or WQXGA displays.<\/p>\n\n\n\n

For the support of upcoming UHD-2 monitors (8K with 7680 x 4320 pixels) the 4:2:0 color scanning is integrated. The dual-mode (DP++), introduced for the first time in 2007, is modified so that it is suitable for HDMI and DVI adapters with 4K Ultra HD resolution (HDMI\u2122 2.0) and copy protection according to HDCP 2.2.<\/p>\n\n\n\n

Version 1.4<\/h4>\n\n\n\n

In March 2016, a version will be released that does not show a further increase in the data transfer rate, but the further development of some features. The Display Stream Compression 1.2 (DSC) offers up to three times the compression rate of the stream, with no visual loss: this means that an average viewer under typical conditions should not be able to distinguish between compressed and uncompressed image or video.<\/p>\n\n\n\n

DSC allows playback of UHD-2 (8K with 7680 x 4320 pixels) and HDR as well as UHD-1 (4K with 3840 x 2160 pixels) and HDR. Of course, monitors that do not support DSC can only display the corresponding resolutions. Two other improvements in DP 1.4 are the forward error correction, which reduces transmission errors, and the extension of audio channels to 32.<\/p>\n\n\n\n

Which version supports which resolution?<\/h4>\n\n\n\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t
Bauteil<\/th>Spezifikation<\/th>reichelt-Bestellnummer<\/th>\n<\/tr>\n<\/thead>\n
BR1<\/td><\/td>SMD DB1A140<\/td>\n<\/tr>\n
C1<\/td>270uF\/16V<\/td>FK 270\/16 SP<\/td>\n<\/tr>\n
C2<\/td>100N<\/td>PET 1812-100 100N<\/td>\n<\/tr>\n
C3<\/td>10u16V<\/td>S-V 10U 16-2 <\/td>\n<\/tr>\n
C4<\/td>47u16V<\/td>S-V47U16<\/td>\n<\/tr>\n
C5<\/td>100N<\/td>PET 1812-100 100N<\/td>\n<\/tr>\n
D4<\/td>1N4002<\/td>1N4002_SMD (DO-213AB)<\/td>\n<\/tr>\n
D5<\/td>1N4002<\/td>1N4002_SMD (DO-213AB)<\/td>\n<\/tr>\n
JP-Adjust<\/td><\/td>Jumper<\/td>\n<\/tr>\n
LM 317<\/td><\/td>LM317EMP<\/td>\n<\/tr>\n
P1<\/td>10k<\/td>23B-10k<\/td>\n<\/tr>\n
R11<\/td>240<\/td>SPR-0805 240<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n

Data transmission system at DisplayPort\u2122<\/h3>\n\n\n\n

Technically, DisplayPort\u2122 has a main connection, the Main Link, which consists of four lanes. The data transfer goes in one direction and takes place in packets, making DisplayPort\u2122 the first video interface with this principle.<\/p>\n\n\n\n

In comparison to DVI or HDMI, where continuous data transfer takes place, DisplayPort\u2122 uses data packets with fixed rates – comparable to the transfer principle with Ethernet, PCI Express or USB.<\/p>\n\n\n\n

\"DisplayPort\u2122
The transmission paths of a DisplayPort\u2122 connection<\/figcaption><\/figure>\n\n\n\n

The specification Mini DisplayPort\u2122<\/h3>\n\n\n\n

Mini DisplayPort\u2122 is a smaller version of the DisplayPort\u2122 connector and electrically compatible to this. Apple had introduced MiniDP in October 2008 as a proprietary technology. In November 2009, VESA included the Mini DisplayPort\u2122 in the DisplayPort\u2122 specification.<\/p>\n\n\n\n

\"DisplayPort\u2122<\/a>
DisplayPort\u2122 plug compared to the Mini DisplayPort\u2122 plug<\/figcaption><\/figure>\n\n\n\n

DisplayPort\u2122 and USB Type-C\u2122<\/h2>\n\n\n\n

Mobile devices like Smartphones, Notebooks or Tablets are more and more equipped with the USB Type-C\u2122 connection. Now DisplayPort\u2122 is a non-USB protocol; the DisplayPort\u2122 and USB Type-C\u2122 technologies are each designed for completely different purposes. However, during the development of the USB Type-C\u2122 interface, emphasis was placed on the intelligent feature of also being able to transmit DisplayPort\u2122 signals. So an alternative mode was integrated.<\/p>\n\n\n\n

The so-called DisplayPort\u2122 Alt Mode for USB Type-C\u2122 is also standardized by VESA. Devices that support the DisplayPort\u2122 Alt Mode can also transfer signals via the USB Type-C\u2122 port. For example, a notebook with DisplayPort\u2122 Alt Mode support can be connected to a DisplayPort\u2122 monitor. The means of choice in this case would be an adapter with USB Type-C\u2122 plug to DisplayPort\u2122 socket.<\/p>\n\n\n\n

\"DisplayPort\u2122<\/a>
More flexibility with the USB Type-C\u2122 interface thanks to DisplayPort\u2122 Alt Mode<\/figcaption><\/figure>\n\n\n\n

Please note that not all devices that support the DisplayPort\u2122 Alt Mode are marked accordingly. According to the DisplayPort\u2122 Organization, by 2016, most video devices on the market with a USB Type-C\u2122 connection will also support the DisplayPort\u2122 Alt Mode. Typically, this can be found on all products marked with video via USB Type-C\u2122.<\/p>\n\n\n\n

The MST Feature<\/h2>\n\n\n\n

What is MST?<\/h4>\n\n\n\n

As of DisplayPort\u2122 Version 1.2 (December 2009), a second transmission mode, the Multi Stream Transport Mode (MST), will be introduced in addition to the Single Stream Transport Mode (SST). Now multiple monitors can be used via a single DisplayPort\u2122 connection. One possibility is that the monitors support daisy-chaining*. Alternatively, a DisplayPort\u2122 MST hub can be used, where the number of connected monitors is limited by the data transfer rate of the DP interface.
*Daisy-chaining (= “daisy connection”): Several peripheral devices (e.g. monitors) are connected in series on a data line in the form of a chain. The output of one device is connected to the input of the next device.<\/p>\n\n\n\n

The matter of bandwidth<\/h4>\n\n\n\n

Of course, the bandwidth of a single DisplayPort\u2122 1.2 connection is also limited. This limits the number of screens and supported resolutions that can be connected and used via an MST hub. Here again it depends on the respective monitor resolution, the timing and the refresh rate.
Which resolution needs which bandwidth?<\/p>\n\n\n\n

Resolution Bandwidth – usage<\/p>\n\n\n\n

1920 x 1080 @ 60 Hz – 22 %
1920 x 1200 @ 60 Hz – 30 %
2560 x 1440 @ 60 Hz – 35 %
2560 x 1600 @ 60 Hz – 38 %
3840 x 2160 @ 30 Hz – 43 %
3840 x 2160 @ 60 Hz – 95 %<\/p>\n\n\n\n

Bandwidth & Monitor Configuration – Example 1<\/h4>\n\n\n\n

Three monitors with 2560 x 1440 @ 60 Hz each are connected to the graphics card via an MST splitter. Each monitor consumes 35% of the bandwidth. In total they need 105 %, which means that one of the monitors is deactivated.<\/p>\n\n\n\n

\"Bandwidth<\/a>
35% + 35% + 35% = 105%<\/figcaption><\/figure>\n\n\n\n

Bandwidth & Monitor Configuration – Example 2<\/h4>\n\n\n\n

Two MST splitters are connected to the graphics card. Three monitors of 1920 x 1080 @ 60 Hz each are connected to splitter 1. Each monitor requires 22% bandwidth, a total of 66% of Splitter 1’s bandwidth. Three monitors with different resolutions are also connected to Splitter 2, using 79% of the Splitter 2 bandwidth. In this example, the connection of six monitors to a graphics card with two outputs and the sufficient supply of the monitors with bandwidth is guaranteed.<\/p>\n\n\n\n

\"Bandbreite<\/a>
Via Splitter 1: 22% + 22% + 22% = 66% – Via Splitter 2: 35% + 22% + 22% = 79%<\/figcaption><\/figure>\n\n\n\n

Up to two MST splitters can be used on one graphics card if it has two outputs. It then depends on the number of display lines on the card how many monitors are supported. If the number of available display lines is unclear, the manufacturer of the graphics card should be contacted. DisplayPort\u2122 Splitters with MST also allow all connected monitors to operate independently as an extended desktop.<\/p>\n\n\n\n

The feature DP++<\/h2>\n\n\n\n

Compatibility via passive adapters<\/h4>\n\n\n\n

The dual mode DisplayPort\u2122 or DisplayPort++\u2122, short DP++, offers compatibility to DVI and HDMI. The connection is made possible by comparatively inexpensive adapters that only have to adapt the electrical signaling level: from LVDS at DisplayPort\u2122 to TMDS at HDMI \/ DVI. The graphics card of the PC is involved here, because as soon as it recognizes that the connected device is one with DisplayPort\u2122 interface, the signals are also output in this format.<\/p>\n\n\n\n

However, if, for example, an adapter to HDMI is connected, the graphics card is signaled to use the HDMI protocol. In the downstream passive adapter (so-called impedance converter \/ level shifter \/ level converter), the different signal levels and impedances of the signaling levels LVDS and TMDS are then adjusted; in each case corresponding to the target interface. The support of DP++ and a corresponding marking on the devices is optional and depends on the manufacturers.<\/p>\n\n\n\n

\"Compatibility
(1) Transfer natively from PC to DP monitor (2) Passive adapter fits signal to (3) Active adapter converts signal<\/figcaption><\/figure>\n\n\n\n

When is an active adapter necessary?<\/h4>\n\n\n\n

One limitation of DP++ is that it can only transfer single-link DVI (and HDMI) because the number of pins in the DisplayPort\u2122 connector is too small for dual-link connections. Dual-Link DVI and analog VGA can be connected, but an active adapter is required. Active adapters act as a signal sink (monitor) to the imaging device and as a signal source to the image receiving device.<\/p>\n\n\n\n

Product examples DisplayPort\u2122 from Delock:<\/h2>\n\n\n\n

<\/span>Adapter mini DisplayPort 1.2 Plug > DVI socket 4K<\/h4>\n\n\n\n

Connections:<\/p>\n\n\n\n

    \n
  • mini DisplayPort\u2122 20 Pin male > DVI 24+5 female with nuts<\/li>\n\n\n\n
  • DVI-D (Single Link), VGA not wired<\/li>\n\n\n\n
  • Resolution up to 3840 x 2160 @ 30 Hz (depending on monitor \/ system)<\/li>\n\n\n\n
  • Contacts with gold plating<\/li>\n\n\n\n
  • 1 x ferrite core<\/li>\n\n\n\n
  •  Cable length: approx. 20 cm (without connections)<\/li>\n<\/ul>\n\n\n\n
    <\/div>\n\n\n\n

    <\/span>Cable DisplayPort\u2122 > DisplayPort\u2122 8K<\/h4>\n\n\n\n

    Connections:<\/p>\n\n\n\n

      \n
    • DisplayPort\u2122 20 Pin Connector > DisplayPort\u2122 20 Pin Connector<\/li>\n\n\n\n
    • DisplayPort\u2122 1.4 Specification<\/li>\n\n\n\n
    •  DisplayPort\u00ae DP 8K certified<\/li>\n\n\n\n
    • Resolution up to 8K Ultra HD (depending on monitor \/ system)<\/li>\n\n\n\n
    • Data transfer rate up to 32.4 Gbps<\/li>\n\n\n\n
    • contacts gold-plated<\/li>\n\n\n\n
    • Triple shielded cable<\/li>\n\n\n\n
    • copper line<\/li>\n\n\n\n
    • Cable \u00d8 approx. 4.5 mm \/ Wire cross section: 34 AWG<\/li>\n\n\n\n
    • Length: 1 m (incl. connections)<\/li>\n<\/ul>\n\n\n\n
      <\/div>\n\n\n\n

      <\/span>Cable Mini DisplayPort\u2122 > DisplayPort\u2122 8K<\/h4>\n\n\n\n

      Connections:<\/p>\n\n\n\n

        \n
      • Mini DisplayPort\u2122 20 Pin Connector > DisplayPort\u2122 20 Pin Connector<\/li>\n\n\n\n
      • DisplayPort\u2122 1.4 Specification<\/li>\n\n\n\n
      • DisplayPort\u00ae DP 8K certified<\/li>\n\n\n\n
      • Resolution up to 8K Ultra HD (depending on monitor \/ system)<\/li>\n\n\n\n
      • Data transfer rate up to 32.4 Gbps<\/li>\n\n\n\n
      • contacts gold-plated<\/li>\n\n\n\n
      • Triple shielded cable<\/li>\n\n\n\n
      • copper line<\/li>\n\n\n\n
      • Cable \u00d8 approx. 4.5 mm \/ Wire cross section: 34 AWG<\/li>\n<\/ul>\n\n\n\n
        <\/div>\n\n\n\n

        <\/span>Cable Mini DisplayPort\u2122 Plug > Mini DisplayPort\u2122 Plug 4K<\/h4>\n\n\n\n

        Connections:<\/p>\n\n\n\n

          \n
        • mini DisplayPort\u2122 20 Pin Connector > mini DisplayPort\u2122 20 Pin Connector<\/li>\n\n\n\n
        • DisplayPort\u2122 1.2 Specification<\/li>\n\n\n\n
        • Resolution up to 3840 x 2160 @ 30 Hz (depending on monitor \/ system)<\/li>\n\n\n\n
        • Data transfer rate up to 21.6 Gb\/s<\/li>\n\n\n\n
        • Contacts with gold plating<\/li>\n\n\n\n
        • braided shielding<\/li>\n\n\n\n
        • Cable \u00d8 approx. 5.5 mm \/ Wire cross section: 32 AWG<\/li>\n\n\n\n
        • copper line<\/li>\n<\/ul>\n\n\n\n
          <\/div>\n\n\n\n

          <\/span>Splitter 1 x DisplayPort\u2122 1.2 in > 4 x DisplayPort\u2122 out 4K<\/h4>\n\n\n\n

          Connections:<\/p>\n\n\n\n

            \n
          • Input >
            1 x DisplayPort\u2122 20 Pin Connector
            1 x 5 V DC current socket<\/li>\n\n\n\n
          • Output > 4 x DisplayPort\u2122 20 Pin Socket<\/li>\n\n\n\n
          • DisplayPort\u2122 1.2a Specification<\/li>\n\n\n\n
          • Active converter, Single \/ Multi Stream Transport Hub (SST \/ MST)<\/li>\n\n\n\n
          • Resolutions (depending on monitor \/ system)<\/li>\n\n\n\n
          • DisplayPort\u2122 1.1 or 1.2 Single Stream Transport (SST) > up to 1920 x 1080 @ 60 Hz (Mirrored)<\/li>\n\n\n\n
          • DisplayPort\u2122 1.2 Multi Stream Transport (MST) > up to 2560 x 1440 @ 60 Hz or 3840 x 2160 @ 30 Hz (mirrored \/ extended) max. 4 x 1920 x 1080 @ 60 Hz<\/li>\n\n\n\n
          • Supports HDCP 1.3<\/li>\n\n\n\n
          • Supports Eyefinity \/ Single Large Surface (SLS)<\/li>\n\n\n\n
          • Audio input formats: 7.1 channel with a sampling rate up to 192 kHz<\/li>\n\n\n\n
          • Cable length: approx. 30 cm (without connections)<\/li>\n\n\n\n
          • Dimensions (LxWxHx): approx. 143 x 67 x 23 mm<\/li>\n<\/ul>\n\n\n\n
            <\/div>\n","protected":false},"excerpt":{"rendered":"

            DisplayPort\u2122 is a universal connection standard standardized by the VESA (Video Electronics Standards Association). It is a digital interface for the transmission of video and audio signals. In contrast to HDMI, which is mainly used for TV and multimedia devices such as beamers, game consoles and DVD players, DisplayPort\u2122 is primarily used in information technology, […]<\/p>\n","protected":false},"author":1,"featured_media":86362,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6038],"tags":[],"class_list":["post-40276","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guide"],"yoast_head":"\nThe DisplayPort\u2122 Interface - What is DisplayPort\u2122? - reichelt Magazin<\/title>\n<meta name=\"description\" content=\"DisplayPort\u2122 is a universal connection standard standardized by the VESA (Video Electronics Standards Association).\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.reichelt.com\/magazin\/en\/guide\/the-displayport-interface-what-is-displayport\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The DisplayPort\u2122 Interface - What is DisplayPort\u2122?\" \/>\n<meta property=\"og:description\" content=\"DisplayPort\u2122 is a universal connection standard standardized by the VESA (Video Electronics Standards Association).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.reichelt.com\/magazin\/en\/guide\/the-displayport-interface-what-is-displayport\/\" \/>\n<meta property=\"og:site_name\" content=\"reichelt Magazin\" \/>\n<meta property=\"article:published_time\" content=\"2019-08-28T10:14:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-08-30T09:33:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.reichelt.com\/magazin\/wp-content\/uploads\/2019\/08\/Titel_Displayport.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1350\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"The DisplayPort\u2122 Interface - What is DisplayPort\u2122?\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"9 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.reichelt.com\\\/magazin\\\/en\\\/guide\\\/the-displayport-interface-what-is-displayport\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.reichelt.com\\\/magazin\\\/en\\\/guide\\\/the-displayport-interface-what-is-displayport\\\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/www.reichelt.com\\\/magazin\\\/en\\\/#\\\/schema\\\/person\\\/54edf009d7730dbe36a83d3e9948e08f\"},\"headline\":\"The DisplayPort\u2122 Interface – What is DisplayPort\u2122?\",\"datePublished\":\"2019-08-28T10:14:57+00:00\",\"dateModified\":\"2023-08-30T09:33:40+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.reichelt.com\\\/magazin\\\/en\\\/guide\\\/the-displayport-interface-what-is-displayport\\\/\"},\"wordCount\":1826,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.reichelt.com\\\/magazin\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.reichelt.com\\\/magazin\\\/en\\\/guide\\\/the-displayport-interface-what-is-displayport\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.reichelt.com\\\/magazin\\\/wp-content\\\/uploads\\\/2019\\\/08\\\/Titel_Displayport.png\",\"articleSection\":[\"Guide\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.reichelt.com\\\/magazin\\\/en\\\/guide\\\/the-displayport-interface-what-is-displayport\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.reichelt.com\\\/magazin\\\/en\\\/guide\\\/the-displayport-interface-what-is-displayport\\\/\",\"url\":\"https:\\\/\\\/www.reichelt.com\\\/magazin\\\/en\\\/guide\\\/the-displayport-interface-what-is-displayport\\\/\",\"name\":\"The DisplayPort\u2122 Interface - What is DisplayPort\u2122? 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