Speaking of crytal balls, for IEEE members out there, has anyone seen the
picture of a swept 3D display in the IEEE Spectrum Magazine? Its like a
glass globe and an image forms inside.
3D technology looks really cool.
Speaking of which I was in the Kodak site and the
way they are going on about OLED panels it's a wonder
they haven't replaced LCD panels in most products
One of their claims is that they are faster then
film when it comes to speed.
Also faster then video pixel response
Have heard of DLP ("Digital Light Processing") is a proprietary technology
developed by Texas Instruments. It works quite differently than LCD. Instead
of having glass panels through which light is passed, the DLP chip is a
reflective surface made up of thousands of tiny mirrors. Each mirror
represents a single pixel.
search google for dlp_demo.swf and watch it.
Anyone have an idea what will come after LCD & Plasma
have had their run in the market for TV and monitors?
I can't for the life of me work out why a set of three lasers (RGB)
shouldn't be bounced off two spinning polygonal mirrors and modulated
to produce a projector. Lasers are fairly inefficient light sources
though, perhaps that's the reason. Plenty of advantages if it could
be made to work, though.
Not necessarily. I was thinking that I could have a tablet
or handheld PC, and it could project the screen image onto
a suitable wall or even the back of the seat in front,
giving a decent sized screen image out of a small device.
Basically a portable computer with built-in projector.
You'd have to move the mirrors pretty damn fast for that to happen. Have
you ever been to a laser show? They can't even show a line drawing (with
far less area to cover than a screen!) with any stability (Can't do it
Laser light shows use positional transducers. This would use
a spinning polygonal mirror. The horizontal sweep would need
for example a 12-sided mirror spinning at 78000 RPM to achieve
the 15625 kHz refresh rate of TV - quite doable. Relatively
un-exotic devices exist that use air bearings to spin 20 times
as fast - modern dental drills for example that spin over 1M
I remember a few months ago, either Sony or some other Japanese company
put on market a PDA type device with a small OLED screen, instead of an
LCD screen. It was on the news as a world first for a commercially
available device that used OLED technology.