2.2 inch LCD Display featuring VGA Resolution

i4u writes "Casio announces a LCD display with the world's highest resolution. The 2.2 inch LCD display features VGA resolution. The Casio innovation has 368ppi (pixels per inch). The power consumption and size is the same as with current QVGA (320x240) displays. Meaning current mobile phone models could directly be upgraded with a VGA display. So we could very soon see Mobile phones with VGA resolution on 2.2 inch displays. Samsung had the World's highest resolution with 300ppi in early August. Casio took now the lead. More details in Casio Press-Release (Japanese)."

Comments

At what point is DPI irrelevant

[stratjakt]

That is, when does the average human eye stop distinguishing them as seperate points?

I can tell 300 DPI from 600 DPI on a printout, but above that it looks about the same to me.

Re:At what point is DPI irrelevant

[eander315]

This is a common mistake when considering the DPI of printers and monitors. They are not measured in the same way. I would try to explain it here, but the wikipedia entry does a better job than I could.

what i want...

[here4fun]

So we could very soon see 2.2 inch Mobile phones with VGA resolution. See the photo where a full Windows browser is shown on 2.2 inch.

While this is nice, what I really want is a better battery, better camera (can we get 2mp on a cell phone?), and more storage memory (how about a card slot?). I doubt anyone will run windows or play doom on their cell phone. But people might want to play mp3's, take pictures, or browse the web and check email.

Re:Application?

[clevelandguru]

Virtual Reality Head Mounted Displays.

So can we get something like this in a drive bay ?

[pangloss]

I would love a vga (or better!) capable screen that fits in a drive bay. If you've seen the lcd's for car stereos that slide out, you know what I mean. Or if you don't, imagine the rackmountable lcd displays that slide out and then go vertical but sized for a drive bay.

Would be great for the htpc that's normally only used with a projector. You don't always want to turn on the beamer if you're just playing music, but you do need to be able to use some sort of screen.

Virtual Headsets?

[Dante]

I don't know about you, but the buga boo in the past with virtual headsets was
not being able to do true 640x480.

I'd love to see a head set doing true 640 x 480.

How about HMD's?

[mhackarbie]

Sounds like this would be perfect for making Head Mounted Displays, so we can finally get some decent low cost Virtual Reality and/or 3D display hardware. Any reason why that wouldn't work?

I know that the most sophisticated VR also requires complicated head position tracking hardware, which apparently is quite difficult to get right. Existing implementations often cause nausea and vertigo in some people.

However, a nice, crisp 3D display with mouse-driven movement of the scene should be a perfectly acceptable low-cost alternative. You would have to strap it on your head and you would look like some kind of wired-up bug freak, but what's wrong with that?

I sure as heck could use it in my molecular modelling work.

mhack

Wrong!

[exhilaration]

I doubt anyone will run windows or play doom on their cell phone...

Doom for Symbian Phones - runs on most recent Nokia phones.

Legacy applications and application??

[tezza]

I wanted a C64 emulator for the Palm m505. However, the screen resolution was not enough to match that of the C64 [320*200 in MCI mode].

So there was no point in anyone trying, as to hack the screen drawing code is not viable, as so much depended on the syncing and timing in the C64 days.

So conceivably, that old DOS mode 'pokes and peeks the VGA buffer itself' type code could now hope to be ported to this sort of screen.

I'm struggling and struggling to think of one app that would not have been superceded by something superior. But should one exist, it could not without it's hardcoded minimum resolution.

Keep this going, I could run Lionheart under UAE on an NGage VII.

A display with 4x the resolution

[morcheeba]

Check out this display -- it's LCD, frag-friendly 360Hz refresh, 1/3 VGA, 24 bit color, and with a pixel size of 12 x 16.2um, it works out to 1500-2000 pixel/inch.

Of course, the trick is that this display is really small -- since it's built on a silicon wafer, expanding it to 2.2" would raise the price incredibly (defect rate isn't linear with size). So, it makes a wonderful camcorder/digital camera viewfinder, and its bigger cousins work in HD projectors, but not really practical for a phone display.

One of the coolest things about this is that it is a black and white display lit sequentially with red, gren, and blue leds. The display sets switches each pixel to the appropriate brightness of whatever color is lighting it. This means no "screen door" effect -- see an example here, so the display is much clearer.

Switching time is about 150 microseconds - good large-size monitors are still in the range of 20000 microseconds!