In an interesting display of combining technologies, San Jose-based Prysm, has officially unveiled its laser phosphor display (LPD) TV.  Called the TD1, Prysm’s TV is composed of a glass matrix of which the inside is painted with vertical lines of excitable phosphor which glow red, green, or blue when painted with a soft UV laser.  The TD1’s lasers are housed behind the screen, pointing up toward a bank of small, rapidly moving micro mirrors.  The mirrors scan the lasers across the screen to produce the image.

The company says the technology will be competitive with plasma and LCD, the dominant players in today’s HDTV market, within three to five years.  LPD displays are similar to CRT TVs, but much more energy efficient.  Cathode ray tube TVs use an electromagnet to to control an electron beam that runs across an similar phosphorous field.  LPD employ a laser that turns on and off as the beam runs across the vertical phosphor field.

Read more about LPD TV

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