Are You Ready for Laser Televisions?

I think this is only a stop along the way. 3D television, Holographic television, and finally the holy grail of the hologram on its own. No size restraints no monitors. Concealed hardware that makes it look like magic.

This is all conjecture, so shoot it down if it's impossible.

This is how I see it playing out. Three light sources to a single point in space, generate one pixel. Multiple lasers reflected off of spinning mirrors are used for each of the 3 light sources. Each light source uses a reference pulse source to source for real time calibration of position. This would be used for initial set up or for real time positions on moving platforms. Each light source uses three laser colours red, blue and green.

Provide the computational targeting software and projected sound output as well as sound input for interactive applications and your away to the races.

Imagine the applications.

Hava a good one.

Hi Elroy

G.A.

That's exactly how I envision it too, except that I'd think of lasers of three diferent invisible wavelenghts, causing interference in a single pixel, wich creates visible harmonics (so you see a "floating" color pixel). Then, the rest of your description entirely coincides with mine.

Yahlasit

This is all very well - both the basic wish-list and the proposed solution date back at least to the 1950s. Locally focussed scanned lasers are probably much more practical than holography, and the source could be all but invisible - but even here the problem of viewing angle remains.

What your contribution has to do the competitive position of illuminating flat-screen phosphors with a cheap UV laser is another matter. You really should have marked yourself off-topic (there's still time).

Learn to look at the inner "TV" screen of your mind. You won't be disappointed!! No outer technological display can hold a candle to that!

This is all very impressive and amazing. The bigger question is; will it make the garbage on TV any better? 600 channel's and nothing on!

You might be thinking about the Bruce Springsteen song "50 channels and nothin ON" but the effect is the same regardless of how many channels exist. It's mostly crap. What would be nice is create your own material using your imagination and laser graphics software and an RGB solid state laser projector.

When a CRT goes bad, a dot sometimes appears in the middle of the screen. I could address sweep times, blanking pulses, etc.; however, I'm trying to make a point.

A LASER powerful enough to energize a pixel on a screen will burn through that same screen, if it looses it's sweep drive. Just think of the implossion, the lawsuits, the happy lawyers, etc. If industry works out the bugs before the product is released, there's no problem; however, if Microsoft is used as a model, the industry will die before it gets a chance to prosper.

14" deep? If we are looking to future domestic use, 2" will surely be the depth limit. If we simply scale the optical arrangement, each laser will only cover 1/50th of the area. Perhaps clever optics can reduce this isue - or maybe it doesn't actually matter. Clearly there are no show-stoppers here on the technical front. The challenges will be systems integration and low-cost manufacture.

But is this a long-term solution? Personally I doubt it. Already we have high-resolution LCD displays with LED back-lighting, and lower-resolution direct phosphor LED displays (4-mm pitch is typical, but I think 1-mm is becoming available). So the logical next stage is to develope that driver matrix currently used for LCDs to the point where it will support LEDs - and then either autoassembly or in-situ LED manufacture. One major technical problem (LED electrical-to-optical efficiency) has already been overcome ...

It is possible the laser scanned phosphor display will be an interim solution for the domestic market - but I wouldn't expect it to remain at the forefront for very long.

Seems unlikely that any technology with moving parts is going to be successful. Mitsubishi tried to sell laser DLP sets in 2008 and they were a total flop. And why would anyone want a 14" thick TV? Can't mount that on the wall. I think the next gen sets will be LED-based (not the present LCD/LED sets).