You may have heard the buzz about Prysm and its new “laser phosphor display” (LPD). The short take-away points on this story are (1) this is a new and different approach to flat screen displays, and (2) it is not likely to be a consumer product any time soon.
Here’s how the display works; an array [...]
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HDTV Almanac - New Laser HDTV
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alfredpoor
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stevekaden
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I am not so sure phosphor wear and burn would be that much of an issue. Unless about 10 years of use is not enough - as that was the typical Sony Trinitron and present Plasma tv's. Both are in a vacuum though and there is no hint if this would have the phosphor in a vacuum with the laser hitting through glass.
As for mechanical unreliability - well, it's all in the quality. I have no idea what the failure rate on laser printer mirror spinners or DLP color wheels - but I am going to guess that is not a big issue. Long lived bearings and motors are not so hard to build.
BUT, I will say that I can't see how this will not be a fairly deep RP set. And might have alignment and geometry issues. It will be interesting to see though.
As for mechanical unreliability - well, it's all in the quality. I have no idea what the failure rate on laser printer mirror spinners or DLP color wheels - but I am going to guess that is not a big issue. Long lived bearings and motors are not so hard to build.
BUT, I will say that I can't see how this will not be a fairly deep RP set. And might have alignment and geometry issues. It will be interesting to see though.
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alfredpoor
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Some answers and conjecture
The power consumption is apparently about 25% of sets of similar size.
The mechanical mirror is a weak link, but Philips simply used an off-the-shelf hard disk drive motor for their scanning LCoS rear projection engine, and they ran it at a fraction of its rated duty cycle speed. If Prysm is doing something similar, then the motor should outlive the rest of the components.
As for set depth, keep in mind that the laser beams do not spread appreciably, so you can fold the light beams more aggressively without a problem. Light management is a whole lot easier with lasers than with UHP lamps.
Alfred
The mechanical mirror is a weak link, but Philips simply used an off-the-shelf hard disk drive motor for their scanning LCoS rear projection engine, and they ran it at a fraction of its rated duty cycle speed. If Prysm is doing something similar, then the motor should outlive the rest of the components.
As for set depth, keep in mind that the laser beams do not spread appreciably, so you can fold the light beams more aggressively without a problem. Light management is a whole lot easier with lasers than with UHP lamps.
Alfred