Digital Visual Interface
Digital Visual Interface (DVI) is a video display interface developed by the Digital Display Working Group (DDWG). The digital interface is used to connect a video source, such as a video display controller, to a display device, such as a computer monitor. It was developed with the intention of creating an industry standard for the transfer of uncompressed digital video content.
|
A male DVI-D (single link) connector | |||
| Type | Digital computer video connector | ||
|---|---|---|---|
| Production history | |||
| Designer | Digital Display Working Group | ||
| Designed | April 1999 | ||
| Produced | 1999–present | ||
| Superseded | VGA connector | ||
| Superseded by | DisplayPort, HDMI | ||
| General specifications | |||
| Hot pluggable | Yes | ||
| External | Yes | ||
| Video signal |
Digital video stream: Single link: 1920 × 1200 (WUXGA) @ 60 Hz Dual link: 2560 × 1600 (WQXGA) @ 60 Hz Analog video stream: 1920 × 1200 (WUXGA) @ 60 Hz | ||
| Pins |
DVI-D Single Link: 19 DVI-D Dual Link: 25 DVI-I Single Link: 23 DVI-I Dual Link: 29 DVI-A: 11 DVI-M1-DA: 35 | ||
| Data | |||
| Bitrate |
(Single link) 3.96 Gbit/s (Dual link) 7.92 Gbit/s | ||
| Max. devices | 1 | ||
| Protocol | 3 × transition minimized differential signaling data and clock | ||
| Pinout | |||
| A female DVI-I socket from the front | |||
| Color coded (click to read text) | |||
| Pin 1 | TMDS data 2− | Digital red− (link 1) | |
| Pin 2 | TMDS data 2+ | Digital red+ (link 1) | |
| Pin 3 | TMDS data 2/4 shield | ||
| Pin 4 | TMDS data 4− | Digital green− (link 2) | |
| Pin 5 | TMDS data 4+ | Digital green+ (link 2) | |
| Pin 6 | DDC clock | ||
| Pin 7 | DDC data | ||
| Pin 8 | Analog vertical sync | ||
| Pin 9 | TMDS data 1− | Digital green− (link 1) | |
| Pin 10 | TMDS data 1+ | Digital green+ (link 1) | |
| Pin 11 | TMDS data 1/3 shield | ||
| Pin 12 | TMDS data 3− | Digital blue− (link 2) | |
| Pin 13 | TMDS data 3+ | Digital blue+ (link 2) | |
| Pin 14 | +5 V | Power for monitor when in standby | |
| Pin 15 | Ground | Return for pin 14 and analog sync | |
| Pin 16 | Hot plug detect | ||
| Pin 17 | TMDS data 0− | Digital blue− (link 1) and digital sync | |
| Pin 18 | TMDS data 0+ | Digital blue+ (link 1) and digital sync | |
| Pin 19 | TMDS data 0/5 shield | ||
| Pin 20 | TMDS data 5− | Digital red− (link 2) | |
| Pin 21 | TMDS data 5+ | Digital red+ (link 2) | |
| Pin 22 | TMDS clock shield | ||
| Pin 23 | TMDS clock+ | Digital clock+ (links 1 and 2) | |
| Pin 24 | TMDS clock− | Digital clock− (links 1 and 2) | |
| C1 | Analog red | ||
| C2 | Analog green | ||
| C3 | Analog blue | ||
| C4 | Analog horizontal sync | ||
| C5 | Analog ground | Return for R, G, and B signals | |
DVI devices manufactured as DVI-I have support for analog connections, and are compatible with the analog VGA interface by including VGA pins, while DVI-D devices are digital-only. This compatibility, along with other advantages, led to its widespread acceptance over competing digital display standards Plug and Display (P&D) and Digital Flat Panel (DFP). Although DVI is predominantly associated with computers, it is sometimes used in other consumer electronics such as television sets and DVD players.