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Most HDTVs have 768 lines today

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Tommart

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In Reply to: Re: DVD upconvert to 1080i not always the best option? posted by Jack G on March 26, 2006 at 15:04:54:

I agree that DVD players that upconvert to 1080 lines usually need to downconvert to 720 or 768 lines to match the resolution of the display.
And with 1080i, I suspect that the downconversion is tyically to 768i.
I agree that its often much better to upconvert to 720p, rather than 1080i, if you have that option.

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Mine has 1080 - Jack G 06:53:01 03/27/06 (7)
Despite the fact that it automatically upscales everything to 1080p, I find DVDs look better if they are upscaled to 1080i before going to the tv. I tried having the player upscale to 720p, but 1080 was better. The Oppo has a better upscaler than my Sony LCOS set. The Sony has a good deinterlacer though.
Jack
- Why most HDTVs have only 1080i and not 1080p? (nt) - La Dolce Vita 20:47:52 03/27/06 (6)
  ,
  - because of this - Joe Murphy Jr 18:26:25 03/29/06 (0)
    .
    - reason (Open in New Window)
  - Marketing Misconception) - Tommart 10:17:09 03/29/06 (0)
    There's a big difference between a HDTV that:
    Supports 1080i, but in reality needs to downconvert it to 720 or 768 to fit the screen resolution,
    And a HDTV that has 1080 line resolution, and doesn't need to downconvert.
    Actually, it's more complicated than that. Most 1080i HDTVs actually process two 540p images. To fit these alternating images on an HDTV with 768 lines requires a great deal of manipulation.
    In a year, most new HDTVs 37 inches or larger will have 1080 lines. Thank goodness.
  - It has 1080p native resolution - Jack G 04:38:40 03/28/06 (3)
    But doesn't accept 1080p input. As I understand it, the chips alowing 1080p input either weren't available, or more likely, they were more expensive. For me its a non-issue.
    Jack
    - $3.50 vs $6.50 - Joe Murphy Jr 18:24:20 03/29/06 (2)
      That's the difference in price between 1080i/720p and 1080p for Silicon Image HDMI chips.
      - 1080p = hi-end? - La Dolce Vita 22:19:45 03/29/06 (1)
        
        In Reply to: $3.50 vs $6.50 posted by Joe Murphy Jr on March 29, 2006 at 18:24:20:
        
        That's why they can charge you extra $3k for the 1080p chip that cost $3 more to them.
        
        the display manufacturer sets the retail price - Joe Murphy Jr 20:32:54 03/30/06 (0)
        
        In Reply to: 1080p = hi-end? posted by La Dolce Vita on March 29, 2006 at 22:19:45:
        
        SI wants $3 more for the full HD capable chip (1920x1080p). The manufacturer -- not SI -- decides what value that gives to their product.

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