Video colour depth

Mark R

Diamond Member
Oct 9, 1999
8,513
16
81
High colour depth seems to have died after its mainstream debut on Matrox's Parhelia cards. The idea of 30 bit colour certainly sounded nice, but the parhelia was not a card suited for hobbyists or even keen amateurs.

Indeed, the change to LCD technology actually meant a backwards step in colour depth. It's only in the last 12-18 months or so, that consumer grade LCD monitors have started offering 24 bit colour - prior to that most consumer grade screens were 18 bit.

I've started seeing marketing for plasma screens boasting 33 bit colour, although this is only available from an analogue source - so is therefore of limited use for high-precision workstation use. This same problem manifested with the parhelia cards - the 30 bit colour output was only available on analogue - digital output (DVI) is presently restricted to 24 bit.

I know there are workstation grade LCD monitors which offer 12.5 bit monochrome depth (approx 7000 grey levels) but these are phenomenally expensive and require a proprietary graphics card to drive them. We've got them at work - with a resolution of 2560x2048 and use of 16bit imaging software, the results are pretty spectacular.

Are we likely to see a 'DVI 2' upgraded to support higher colour depths (?48 bit perhaps), and display panels which could utilise such colour depths?
 

DaveSimmons

Elite Member
Aug 12, 2001
40,730
670
126
Not any time soon, there is just not enough demand for it.

In 10-20 years? Certainly.
 

ProviaFan

Lifer
Mar 17, 2001
14,993
1
0
This is supposed to be supported in Longhorn, along with scaling for ultra-high-DPI displays, so I would expect to see this kind of stuff at least being announced in 2007, though that may be wishful thinking on my part. :(