What is the limiting factor in increasing LCD dpi?

[cirthix]

reliability of interconnect/ITO trace width limitations?

TFT size limitations (much larger on a poly/am-si or other substrate than what we'll see on a normal wafer)?

lc cell size (afaik, these aren't really separated anyway, so probably not this)?

other?

 

[bobsmith1492]

I would say people's eyesight and misunderstanding. There are screens with very high DPI available, but most people don't want it in a PC monitor because "the icons are too small!"

 

[cirthix]

that's not a technical limitation...

 

[bobsmith1492]

No, but it is a practical one. What do you want higher resolution for? Projectors are pretty dense already and I can't think of anything else that would benefit from higher DPI.

 

[cirthix]

I already use a 202DPI screen for general usage, but it's a rare model (vp2290b)

 

[bobsmith1492]

What I'm trying to say is that LCDs with extremely dense pixels exist. Projectors are one example; I tried to look up some specs but didn't find anything immediately useful. I know they can have the same resolution as a computer monitor and yet the LCD projection screen is tiny, probably a square inch or so. Such processes simply aren't used for computer monitors because not enough people would want them, according to someone's market research.

I would love a 20-inch 1920x1200 display personally but LCD vendors don't think enough people want them to make them viable on the market. There is no technical reason it can't be done, though.

 

[CycloWizard]

There isn't really good cause to have a monitor with obscenely high resolutions. Your eye/brain can put together a very smooth image from any decent resolution image, so why bother pushing it further? The only reason to go to higher resolutions is to allow more information to be on the screen, but that's rarely a limitation now (at least for me).

 

[KIAman]

There is no technical reason and bob and cyclo are correct, there just isn't market need. I've got a 15" dell laptop that is 1920x1200. big deal, it just makes the icons super small.