LCOS HDTV Technology - any good??

Discussion in 'Displays' started by Robert Zawacki, Dec 3, 2004.

  1. Robert Zawacki

    Joined:
    May 12, 1999
    Messages:
    28
    Likes Received:
    0
    I saw this set for $2499. The picture looked outstanding. The salespeople were telling me it is the next big technology and better than DLP or LCS, no burn-in or convergence issues. ....and a whopping 55" of HDTV loving. Does anyone have one? Heard anything bad about it??What are the negatives of LCOS technology?? Is it better than LCD or Plasma?

    Thank you ahead of time.

    TV is
    PHI55PL9774
    55" LCOS WIDESCREEN HD MONITOR
    This Philips 55" LCoS HD Monitor features Pixel Plus™ technology that creates more detail, texture, resolution and high-definition-like images from any source
     
  2. Ryan Wishton

    Ryan Wishton Screenwriter

    Joined:
    May 17, 2003
    Messages:
    1,130
    Likes Received:
    0
    Does this have the rainbow effect like DLP?
     
  3. Andrew Grall

    Andrew Grall Supporting Actor

    Joined:
    May 17, 1999
    Messages:
    645
    Likes Received:
    0
    Yes, the Philips LCoS is subject to the rainbow effect because it is a 1-chip design.

    The JVC DILA (also LCoS) is a 3-chip design - no rainbow effect.
     
  4. Michael Mohrmann

    Michael Mohrmann Screenwriter

    Joined:
    Dec 30, 2001
    Messages:
    1,394
    Likes Received:
    0
    Are you sure about this? I could have sworn I saw rainbows on the JVC D-ILA. Then again, I was seeing rainbows on a handful of DLP RPTVs in the same store, so maybe my brain was still flashing them when I looked at the JVC.

    Michael
     
  5. alan halvorson

    alan halvorson Cinematographer

    Joined:
    Oct 2, 1998
    Messages:
    2,009
    Likes Received:
    0
    JVC front projectors are all 3-chip; JVC RPTV's are all 1-chip.
     
  6. Mort Corey

    Mort Corey Supporting Actor

    Joined:
    Nov 21, 2003
    Messages:
    981
    Likes Received:
    0
    The Phillips initially had quite a few problems. I don't know if they remedied their issues but my local stores haven't re-stocked them after the initial failures. The JVC unit is pretty new but I've read that there are some problems with their light engine.

    Mort
     
  7. Andrew Grall

    Andrew Grall Supporting Actor

    Joined:
    May 17, 1999
    Messages:
    645
    Likes Received:
    0

    You should not see rainbows on the JVC set. There is no color wheel like in the DLP sets. There are no moving parts.
     
  8. mike wazonek

    mike wazonek Auditioning

    Joined:
    Mar 11, 2004
    Messages:
    8
    Likes Received:
    0
    From what I have heard this model is philips third generation of LCOS and I would tend to believe that Philips has worked out any of the bugs the initial models had - Philips has discontinued production of the LCOS television to concentrate more on the LCD and plasma televisions. For the price of this tv with the pixel plus for SDTV it certainly seems like a real bargain.


    Wazy
     
  9. Gabriel_Lam

    Gabriel_Lam Screenwriter

    Joined:
    Mar 7, 2002
    Messages:
    1,402
    Likes Received:
    0
    The Philips is a 1-chip system, but fewer people TEND to see rainbows with them because of their spinning prism color system instead of the spinning colorwheel with DLP machines. Some people still experience the rainbow effect, but it's reasonably rare.
     
  10. EricRWem

    EricRWem Screenwriter

    Joined:
    Jun 4, 2004
    Messages:
    1,097
    Likes Received:
    0
    Real Name:
    Adrik
    Anyone here own one of these JVC bad boys? How ya like it?
     
  11. Mike Milillo

    Mike Milillo Stunt Coordinator

    Joined:
    Apr 14, 2003
    Messages:
    142
    Likes Received:
    0
  12. Allan Jayne

    Allan Jayne Cinematographer

    Joined:
    Nov 1, 1998
    Messages:
    2,404
    Likes Received:
    0
    All projection TV's may have thin omnipresent rainbows on subject matter near the screen borders because of lens imperfections (chromatic aberration). Eyeglasses may, depending on the angle of view, accentuate or cancel these rainbows. This is not "the rainbow effect".

    LCoS is substantially the same as LCD but with a slightly darker black level.

    Video hints:
    http://members.aol.com/ajaynejr/video.htm
     

Share This Page