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Thread: dot per inch

  1. #1
    soapytwo
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    dot per inch

    Hi:

    i heard that 28 dpi is good for a monitor. is 26 dpi better or worse?

    i tend to think it's worse, as the more dots per inch, the better. is this correct?

    but, i think i read some place that 26 WAS better? i'm confused....

  2. #2
    Uranium Lounger
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    Re: dot per inch

    If 26 was better than 28, then wouldn't zero dpi be the best?

    The higher the dpi the better the image.
    Legare Coleman

  3. #3
    soapytwo
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    Re: dot per inch

    Hi!

    makes sense to me. thanks!

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    Uranium Lounger
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    Re: dot per inch

    Further to Legare's advice, dot pitch is also measured differently from one manufacturer to the next. Some measure it diagonally, some horizontally....some from the center of the dot to the other center, some edge to edge....you get the idea. It's not all you should look at in a display. <img src=/S/smile.gif border=0 alt=smile width=15 height=15>
    -Mark

  5. #5
    WS Lounge VIP rory's Avatar
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    Re: dot per inch

    Hi,
    It should actually be 0.28 or 0.26 dpi if you're talking about monitors and the LOWER the number, the better the image. I personally look for 0.26 or better.
    The dpi actually stands for dot pitch, not dots per inch, and is a measure of the gap between the pixels, therefore the lower the number, the better the image quality.
    Hope that helps.
    Regards,
    Rory

    Microsoft MVP - Excel

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    Plutonium Lounger Leif's Avatar
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    Re: dot per inch

    That makes a lot of sense.
    I was beginning to wonder how big a monitor you would need to view at 1024 x 768 resolution with 26 dots per inch . . .

  7. #7
    soapytwo
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    Re: dot per inch

    Ok. now i have a problem and I'm REALLY confused. if you'll see the answer i got from Legare, you will see that he said the HIGHER the dpi, the better. (see below. this is a copy/paste of his response).
    =================================================
    If 26 was better than 28, then wouldn't zero dpi be the best?

    The higher the dpi the better the image.

    Legare Coleman
    ================================================
    You are saying the LOWER the dpi, the better the image. YIKES! which is it? Very interesting.

    I've been looking at the new flat screen monitors and ha've seen them as low as 26 and as high as 30. Which is better? thanks!
    <img src=/S/hairout.gif border=0 alt=hairout width=31 height=23>

  8. #8
    soapytwo
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    Re: dot per inch

    Hi:
    can you take a look at the responses that i got from Rory and Legare? it appears that they have two entirely opposite opinions re the dpi for monitors.

    Rory says the LOWER the number the better the image.
    Legare says the HIGHER the number the better the image

    This might be funny at any other time, except that i'm getting ready to put big bucks down on a new monitor. There are sooooo many of these items on the market and all seem to have different qualities and prices ranges. So much so that i am a little uncomfortable about making a decision and feel that i still have a lot of research to do.

    Is there any place that you know of that would actually have this info in writing to know which is correct?

    thanks! soapy

  9. #9
    WS Lounge VIP rory's Avatar
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    Re: dot per inch

    Hi,
    Check out WhatIs.com - it's a great site for technical explanations. You may need to register so to save you time this is an excerpt:

    "The dot pitch specification for a display monitor tells you how sharp the displayed image can be. The dot pitch is measured in millimeters (mm) and a smaller number means a sharper image. In desk top monitors, common dot pitches are .31mm, .28mm, .27mm, .26mm, and .25mm. Personal computer users will usually want a .28mm or finer. Some large monitors for presentation use may have a larger dot pitch (.48mm, for example). Think of the dot specified by the dot pitch as the smallest physical visual component on the display. A pixel is the smallest programmable visual element and maps to the dot if the display is set to its highest resolution. When set to lower resolutions, a pixel encompasses multiple dots.
    Technically, in a cathode ray tube (CRT) display with a shadow mask, the dot pitch is the distance between the holes in the shadow mask, measured in millimeters (mm). The shadow mask is a metal screen filled with holes through which the three electron beams pass that focus to a single point on the tube's phosphor surface. In CRTs that use an aperture grill (a slotted form of mask), such as Sony's Trinitron flat-screen technology, the dot pitch is the difference between adjacent slots that pass through an electron beam of the same color."

    High dpi values are good for things like printers and scanners where it does mean dots per inch.
    Hope that helps.
    Regards,
    Rory

    Microsoft MVP - Excel

  10. #10
    soapytwo
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    Re: dot per inch

    Hey! thanks for the link! Excellent info there, and it answered ALL my questions!

    soapy <img src=/S/clapping.gif border=0 alt=clapping width=19 height=23>

  11. #11
    Gold Lounger
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    Re: dot per inch

    Rory is correct.
    Ther lower the nember the better.
    The number represents dot pitch, not dots per inch.

  12. #12
    Uranium Lounger
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    Re: dot per inch

    If I were looking for a new display, I would check to see what the maximum resolution was and how high the refresh rate goes (refresh is applicable to CRTs only). And of course, an eyeball at it in the store to tell me how sharp the display is to my own eye is required - because I will have to live with any mistake I make.

    DPI is not a deciding factor. Reliability and the way the display appears to your eyes are the prime deciding factors, IMHO.
    -Mark

  13. #13
    soapytwo
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    Re: dot per inch

    Hi:
    Yes. i will definitely go to see the monitors before making a decision. Your HO is greatly valued! thanks for the info!

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