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What are the advantages of DVI?
Traditional CRT (Cathode Ray Tube) displays use an
analogue signal to receive image data from the computers graphics
card. For this reason, early graphics cards needed to convert their
native digital signal into analogue in order to support CRT
monitors.
LCD monitors are digital display devices, but when
they were first introduced they needed to be able to accept and
adapt this analogue signal to ensure compatibility with the majority
of available computers. In order for the LCD to accept the
computer's analogue output, the signal had to be reconverted to
digital.
Since both the computer and the LCD digital monitor
accept and transmit digital signals, the process of translating
digital to analogue is fundamentally unnecessary. The DVI digital
connection removes this digital – analogue – digital conversion
process, and so removes inaccuracies and information loss due to
each conversion process.
DVI, at standard cable lengths (up to 7.5m), suffers
none of the problems traditionally associated with analogue
interfaces, such as "noise", "sparkles", "ghosting",
"snow", poor
colour matching and "softness" caused by loss of sharpness.
The DVI interface has proven to be extremely
versatile; it provides manufacturers with the flexibility to support
digital devices while remaining backwards compatible with analogue
devices.
DVI Connection
Types
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DVI-D Single Link
– this Digital only connection supports digital only
displays with screen resolutions of up to 1920 x 1080.
DVI-D Dual Link – similar to single link, this connection uses a second data
link and supports much higher resolutions, such as 2048 x 1536
(QXGA). Click here
to see our range of DVI-D Dual Link cables.
DVI-A, Analogue – this
rarely used cable connects only the analogue RGB signals.
DVI-I Single Link – this
connection incorporates both the digital and analogue signals
in a single cable. This means the cable can send a
digital-to-digital or an analogue-to-analogue signal (for use
with an analogue display).
DVI-I Dual Link – similar
to DVI-I Single Link, but with a second data link for higher
resolutions. This connection incorporates both the digital and
analogue signals in a single cable. This means the cable can
send a digital-to-digital or an analogue-to-analogue
signal.
HDMI (High Definition
Multimedia Interface) – For use with Plasma and
High Definition TVs, projectors and LCD Screens. HDMI cables
combine the digital video signal of DVI with multi-channel
audio, and control signals. Additionally, the HDMI standard
includes a feature called HDCP (High-Bandwidth Digital Content
Protection) to protect material from being copied across the
digital interface. Click here
to see our HDMI cable range.
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DVI-D Single Link Male |
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DVI-D Dual Link Male |
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DVI-I Single Link Male |
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DVI-I Dual Link Male |
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DVI-D Female |
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DVI-I Female |
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HDMI Type A Male |
HDMI Type A
Female |
Maximum distance between
computers
With standard DVI cables you can extend the distance
for digital monitors with fixed cables and connections, by up to
7.5m. Please note that cable lengths over 7.5m are above the
recommended length laid down by the DDWG. Using longer cables may
result in image degradation or loss of picture, but to some extent
this also depends on the performance of your graphics card and
monitor. Please also remember that every additional male-female
connection you make can lower the quality of the signal
transmission. However, for long distance solutions, we recommend you
use our DVI-D
Single Link SLD (Super Long Distance) cables. These cables are
specially designed for longer transmission lengths.
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RF-BLOK
Connector
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In keeping with the LINDY tradition of premium quality
computer connection technology, all LINDY DVI-D and SLD Cables
use a rugged construction RF-BLOK shielded design that ensures
optimum performance from your flat panel monitor. LINDY
RF-BLOK cables use a one-piece metal block EMI/RF shield that
gives reduced interference, and increased insulation
resistance of up to 25%. The innovative interconnect design
means there is no soldering required in the assembly of the
cable. The design and excellent RF shielding also means that
there is no requirement for a ferrite core, so the cable is
less stressed and more flexible – an advantage when the cable
needs to be bent in tight spaces. |
DVI Adapters
LINDY DVI
Adapters allow different monitors and graphics cards to be
connected to the DVI interface. A wide range is available including
ADC, DFP, VGA, P&D and HDMI versions.
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