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CRTs vs LCDs

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  • #31
    To sum up, here are the pros and cons of LCDs and CRTs according to Cnet

    LCD (Pros):

    1) Thin and stylish;

    2) Crisp image (probably because the pixels are clearly defined);

    3) More display area (a 15-inch LCD is equivalent to a 17-inch CRT...);

    4) No refresh-rate flicker;

    5) Little or no low-frequency electromagnetic emissions compared with a CRT;

    6) Perfect screen geometry, which means:

    A description of how accurately lines and shapes are represented on the display. LCDs almost always have perfect geometry because the display information is mapped to specific physical pixels on the display. CRTs may have problems with screen geometry; larger screens and flat-faced models have particular difficulty controlling electron beams with precision. As a result, vertical lines may be noticeably curved at the edges of the display, and circles may appear oval or egg-shaped. The best CRT monitors include controls that let you adjust the screen geometry; still, it can be difficult to adjust it perfectly in all regions of the screen.
    7) No convergence problems, which means:

    Color CRTs rely on three separate electrical beams to project simultaneous red, green, and blue images; these combine to form a full-color image. If these beams are not precisely aligned, the red, green, and blue portions of the image may not overlap correctly, degrading the overall image quality. When the three beams converge correctly at all points on the display, you get a perfect image.
    LCD (Cons):

    (1) Expensive;

    (2) Limited viewing angle. (This can be a problem even if your sitting in front of your screen. If you sit slightly to the left, for instance, the image quality looks a bit washed out.);

    (3) Color rendition may be limited or inconsistent;

    (4) Moving images may smear (ghosting);

    (5) Image quality is (sometimes greatly) reduced when running in nonnative resolution, because the image must be scaled to match the pattern of physical pixels;

    (6) Texts are more pixelated than on CRTs. Why? Maybe its because the pixels are clearly defined. The fact that the pixels on CRTs are less clearly defined act as a form anti-aliasing.

    CRT (Pros):

    (1) Relatively inexpensive;

    (2) Unlimited viewing angle;

    (3) Generally good color rendition;

    (4) Moving images do not smear;

    (5) Can display different-resolution images with relatively little loss of quality;

    (6) Texts are less pixelated.

    CRT (Cons):

    (1) Large and bulky;

    (2) Pixels are not clearly defined at any resolution (that would explain why the image is not as crisp as a LCD);

    (3) Less display area (a 15-inch LCD is equivalent to a 17-inch CRT);

    (4) Refresh-rate flicker is below 75Hz; flicker is more severe with larger monitors;

    (5) More low-frequency electromagnetic emissions than LCDs (However, I doubt this is really a problem);

    (6) Nearly impossible to get perfect screen geometry, especially with flat-faced CRT designs;

    (7) Almost impossible to get perfect convergence of red, green, and blue beams on all parts of the screen.
    Let us be lazy in everything, except in loving and drinking, except in being lazy – Lessing

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    • #32
      Again, LCD's don't have glass between the screen and the viewer. Not only does glass have glare, but it messes with the light.

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      • #33
        Originally posted by Kuciwalker
        Again, LCD's don't have glass between the screen and the viewer. Not only does glass have glare, but it messes with the light.
        dumbest argument for LCD's that I've heard...

        You wear glasses right? Well that ****s up the quality more1!!!!11!!!
        To us, it is the BEAST.

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        • #34
          sometimes in our house we find a need to have two peoiple look at the PC at the same time - most commonly to work together on some document or website, though occassionally POTM and I will look at a game together - this works fine on CRT, would it be a problem on LCD?
          "A person cannot approach the divine by reaching beyond the human. To become human, is what this individual person, has been created for.†Martin Buber

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          • #35
            Originally posted by Sava
            dumbest argument for LCD's that I've heard...

            You wear glasses right? Well that ****s up the quality more1!!!!11!!!
            Without glasses, the image is blurry.

            With glass in front of the screen, the image is blurry.

            Every single CRT I've ever seen has suffered poor image quality because of the glass and because of simply how it works - pixels in CRT's are always fuzzy.

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            • #36
              Originally posted by lord of the mark
              sometimes in our house we find a need to have two peoiple look at the PC at the same time - most commonly to work together on some document or website, though occassionally POTM and I will look at a game together - this works fine on CRT, would it be a problem on LCD?
              Not on most. The angle for it looking weird is pretty big.

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              • #37
                The latest science and technology news from New Scientist. Read exclusive articles and expert analysis on breaking stories and global developments


                Conventional computer screens can only manage 1600 by 1200 pixels, and even high-definition TV displays create their images with an array of 1920 by 1080 pixels at best. Now, HP reckons it can make an A4-sized screen with 7000 by 5000 pixels – matching the quality of a glossy magazine. HP says it will be able to replicate this quality on screens all the way up to large electronic posters and billboards.


                One day Canada will rule the world, and then we'll all be sorry.

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                • #38
                  I bought a new 19" LCD monitor for a reduced price 3 weeks ago, and it is already one of the best purchases I've ever made. The clarity and size of the image is SO superior to my old CRT, and I've had no smearing or ghosting problems at all.

                  Its DREAMTASTIC.

                  Ok, if you look at it sideways its a bit "odd" - so I simply don't look at it sideways. If I sit to one side, I can swivel it around with one finger anyway.

                  I won't say how much it was, because it wasn't cheap... but it was money well spent

                  LCD!

                  -Jam
                  1) The crappy metaspam is an affront to the true manner of the artform. - Dauphin
                  That's like trying to overninja a ninja when you aren't a mammal. CAN'T BE DONE. - Kassi on doublecrossing Ljube-ljcvetko
                  Check out the ALL NEW Galactic Overlord Website for v2.0 and the Napoleonic Overlord Website or even the Galactic Captians Website Thanks Geocities!
                  Taht 'ventisular link be woo to clyck.

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                  • #39
                    Originally posted by Jamski
                    I bought a new 19" LCD monitor for a reduced price 3 weeks ago, and it is already one of the best purchases I've ever made. The clarity and size of the image is SO superior to my old CRT, and I've had no smearing or ghosting problems at all.

                    Its DREAMTASTIC.

                    Ok, if you look at it sideways its a bit "odd" - so I simply don't look at it sideways. If I sit to one side, I can swivel it around with one finger anyway.

                    I won't say how much it was, because it wasn't cheap... but it was money well spent

                    LCD!

                    -Jam
                    If the 'reduced price' was more than the 80 quid I got my 21' CRT for, your on a loser!

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                    • #40
                      I suppose the good thing about TFT's is that they are driving down the price of big CRT's.

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                      • #41
                        Sava needs to get with modern times.

                        LCD's rule!

                        But since my CRT is still running, I'll keep it until it does. Then LCD here I come.

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                        • #42
                          Originally posted by lord of the mark
                          (...), though occassionally POTM and I will look at a game together - this works fine on CRT, would it be a problem on LCD?
                          As mentioned before: On my monitor it's no problem at all. Even at a viewing angle on as close to 180 as possible, the colors are almost perfect
                          This space is empty... or is it?

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                          • #43
                            Here's an example take from my cell phone:

                            Side:



                            The light seen on the picture comes from my cell phone...
                            This space is empty... or is it?

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                            • #44
                              Hm, LCDs are very different from CRTs so comparing refresh rates is silly.
                              (\__/) 07/07/1937 - Never forget
                              (='.'=) "Claims demand evidence; extraordinary claims demand extraordinary evidence." -- Carl Sagan
                              (")_(") "Starting the fire from within."

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                              • #45
                                Originally posted by Kuciwalker
                                Every single CRT I've ever seen has suffered poor image quality because of the glass and because of simply how it works - pixels in CRT's are always fuzzy.
                                Not so. You have just been using crappy CRTs.
                                (\__/) 07/07/1937 - Never forget
                                (='.'=) "Claims demand evidence; extraordinary claims demand extraordinary evidence." -- Carl Sagan
                                (")_(") "Starting the fire from within."

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