4K Computer Monitors Are Coming (But Still Pricey)
First time accepted submitter jay age writes "When TV makers started pushing 4K screens on unsuspecting public, that just recently upgraded to 1080p, many had doubted what value will they bring consumers. Fair thought — 1080p is, at screen sizes and viewing distances commonly found in homes, good enough. However, PC users such as me have looked at this development with great hope. TV screens must have something to do with market being littered with monitors having puny 1080p resolution. What if 4K TVs will push PC makers to offer 4K screens too, wouldn't that be great? Well, they are coming. ASUS has just announced one!"
You could hook a computer up to one of the available 4K displays, but will generally be paying a lot more for the privilege; this one is "only" about $5,000, according to ExtremeTech.
The question is... what content will take advantage of this? Most consumable content is at 1080p and I've yet to see a game which can run at these resolutions yet alone the newest Cryengine.
Why spend $5,000 for a 32" when you can get a 50" 4k for under $1,500. http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7674736 (groupon and a few other places have had it down to around $1,100 over the past few months) I know, some people probably find the 50" way too big. But it seems a bit silly that 32" is so more expensive.
There is nothing wrong with plain old VGA. It could easily handle these resolutions on CRTs. It can do the same on today's flat panels.
I am becoming gerund, destroyer of verbs.
The thing with "VGA" is there really isn't too much to it, three analog video signals and two sync signals with some loose agreements on timings.
That means that there is very little theoretical limit on resolution* but it also means that.
1: All components in the chain have to actually have sufficient analog bandwidth. Lack of strong standards and gradual failure (rather than the brick wall failure you get with digital systems) if the analog circuitry is skimped on encourages skimping on the analog components. This is particually bad with TVs (monitors seem to make an effort to give acceptable performance on VGA at their native resoloution).
2: When driving a screen with discrete pixels the receiver has to guess where each line starts and ends. They are generally pretty good at it but again poor implementations, unhelpful content (completely black screen, screen with black bars from the source) or just plain bad luck can cause mis-locks which are annoying.
3: The individual pixels will inevitably not be completely isolated from each other.
* The connector probably imposes some limit but using the rule of thumb that structures less than a tenth of a wavelength can be regarded as of negligable size it should be usable up to a few gigahertz with careful termination..
note: i'm known as plugwash most places but i screwd up registering that here somehow in the past and now can't register