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Sony Pursues New Digital Display Technology

Posted by Hemos on from the making-things-brighter-and-better dept.

ih8billy writes: "Looks like Sony is looking to replace their now patent-free Trinitron technology with something called GLV (Grating Light Valve) technology. Looks pretty promising as a digital display technology. It can do 1080p without breaking a sweat. GLV also has promise in optical signal routing."

2 of 137 comments (clear)

  1. Re:Hmm. by skoda · · Score: 5

    "Speckle" is what you're referring to. When a coherent light source (i.e. laser) reflects off a rough surface, the rays reflect in slightly different directions and when subsequently brought to a focus by your eye, interfere producing a speckly interference pattern.

    Speckle only occurs when the laser is reflected from a rough surface. Reflected from a smooth surface, you won't get that speckle pattern.

    Even when reflected form a rough source, if the beam is small compared to your eye's resolution, then the speckle is minimal or even imperceptible.

    Now, assuming a single laser beam is raster scanned across the modulator thingy (similar to how the electron beam is scanned across a TV's phospors), then at any point in time a small laser beam is being focused by your eye. The speckle from that 'pixel' could be imperceptible, and since the device is being scanned, there is a large 'surface' of light emitted from the GLV that would interfere in a noticeable way.

    But I'm just guessing here. Interference is one reason lasers can be a challenging illumination source for imaging optics.

    -----
    D. Fischer

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  2. *pun absolutely intended. by SubtleNuance · · Score: 5

    their now patent-free Trinitron technology

    Thats a surprise, to think, Sony will now sell (GLV)The Next Big Thing(TM) after the monopoly rights runs out on their existing technology.
    If there were no patents - wouldnt they have had to develop (GLV)The Next Big Thing(TM) sooner in order to justify selling their wares?

    reminiscent of a similar move made by the company in the early 1960s. An American inventor of a new type of CRT display device called the Lawrence Tube (after the inventor) was unable to interest any U.S. television manufacturer in its worth. Sony seized the opportunity and the Lawrence Tube became the Trinitron in 1968

    Had their been no patent available on the Trinitron - if the technology was freely available in the public domain - how long ago would we have been buying ourselves (GLV) The Next Big Thing(TM) Monitors?!?

    It seems corporatists want to have their cake and eat it too - they want to do as they please (pollute, collude, rape), but they want the rest of us (via our Corporatist $whoring$ governments) to guarantee their pocket books...

    Its almost laughable... what a wonderfully perfect display*...