Path: utzoo!attcan!utgpu!news-server.csri.toronto.edu!rutgers!dorm.rutgers.edu!medici From: medici@dorm.rutgers.edu (Mark Medici) Newsgroups: comp.os.msdos.misc Subject: Re: 1024x768 monitors: 14" vs. 16+" Message-ID: Date: 2 Sep 90 16:24:51 GMT References: <19265@ttidca.TTI.COM> <51380001@hpindda.cup.hp.com> <4237@tuminfo1.lan.informatik.tu-muenchen.dbp.de> Organization: Rutgers Univ., New Brunswick, N.J. Lines: 38 rommel@lan.informatik.tu-muenchen.dbp.de (Kai-Uwe Rommel) writes: >Most 14" displays simply cannot show 1024 pixels satisfying. The minimum >pixel size on current displays is 0.25mm. Now calculate this by 1024 and >compare this to the width of the picture on your display. You will find >that the picture on the 14" is not wide enough to hold 250mm (10"). That >means several dots in 1024x768 mode overlap with the same holes in the >RGB mask of the display and the picture looses much of its quality. >Only a few color display (perhaps SONY ones with Trinitron tubes) can >show 1024x768 on a 14" tube really good. This does not apply to >gray-scale display which do not have a RGB mask and therefore to not >have this dot size limit (you should never see something about "0.28mm >per dot" on data sheets for gray-scale displays). Your explaination for color monitors is correct, however, the information you give for monochrome monitors is not entirely true. While monochrome monitors do not use a shadow mask (aka, RGB mask), they do face a similar limitation in the form of dot size. Dot size is the smallest area that can be illuminated on the screen, and is affected by the qualitiy of the display's focus circuitry, and adversely affected by the brightness of the display. While an overly large dot does not prevent information from being displayed, it does often cause fine detail and patterns to be lost since areas that should be dark between lit areas might be filled by the large dot fringe. Unfortuntely, I no longer have access to information of this type for various monitors. >On a 14" gray-scale display you *can* show 1024x768 in good quality if >the display can synchronize to this mode (not all can do this for >non-interlaced 1024x768 and some are even fixed-freq. only). -- ---------------------------------------------------------------------------- Mark Medici/SysProg3 * Rutgers University/CCIS * medici@elbereth.rutgers.edu ----------------------------------------------------------------------------