DVI Presentation
- 2. Presentation by: FARwa Aqeel Presented to: Sir Farhan ali Topic: Digital visual interface
- 3. 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 display a device, such as computer monitor.
- 4. VGA & DVI are two different display interfaces. Physically they look same but by there work these are two different things. VGA Carries Analog Signals. Which is the most bigger drawback of this interface. Video Graphic Array is an old school standard, Released on 1987.
- 5. DVI Carries Digital signals. This connector was launched on 1999. It is Digital so it doesn’t mean that it can not carry analog signals. DVI has many versions due to which its physical pin counts are changing. In its different versions it carries different pin counters but the maximum numbers of pin counters in DVI is 29 pin ( 5+24 ).
- 7. These upper and lower two pins carry analog signals in DVI. As it name show Digital visual interface it doesn’t mean it only carries digital signals, it also carries analog signals. If you have this type of adapter then you can also connect female connector of VGA to the female connector of DVI.
- 8. DVI has two basic versions DVI Dual LinkSingle Link
- 9. DVI Single Link: Data Rate = 3.96Gbit/s Resolution = 1920 x 1200 Frame Rate = @60Hz (16:10) DVI DUALLINK: Data Rate = 7.92 Gbit/s Resolution = 2560 x 1600 Frame Rate = @60Hz ( 16:10 )
- 10. This version of Digital Visual Interface DVI-A carries Analog Signals only. DVI-A also doesn’t divide in further two versions, Like DVI-D & DVI-I. DVI-A is only Single Link, & it doesn’t need Dual link because it carries analog signals so it do not need much resolution. Number of physical pins in DVI-A is 17 pins. DVI-A
- 11. DVI-D This version of Digital Visual Interface DVI-D carries Digital Signals Only. DVI-D is divided into two versions DVI-D Single Link & DVI-D Dual Link. In this version VGA can not be connected because it do not carry analog signals. In DVI-D Single Link it has 19 pins & In DVI-D Dual Link it has 25 pins.
- 12. DVI-I This version of Digital Visual Interface DVI-I carries both Analog & Digital Signals. It is also divided into two version DVI-I Single Link & DVI-I Dual Link. VGA can be connected to the DVI-I. DVI-I Single Link has 23 pin counts & DVI-I Dual Link has 29 pin counts.
- 13. ADVANTAGES OF DVI: It carries Digital Signals. Quality will not decrease over the length. Colour quality & Image quality is perfect. Disadvantages of DVI: The connectors are quite bulky. The wire becomes bigger. The Resolution of DVI is not enough. (2560 x 1600) @60Hz Morepreferable for resolutionfactor is HDMI.