![]() ![]() On the basis of image-quality alone, in my opinion LCD is the monitor of choice for "office" and technical/CAD applications (largely text-based, or detailed but colour-non-critical graphics), while CRT still has the upper hand for high-end photographic/art work and for television displays. Image can be sub-optimal with analog interface Support multiple resolutions equally well Gives "sparkle" and "life" to movies/video/photos Very high (small area) peak brightness possible Good blacks (quality monitor, properly adjusted) Inherently flicker (although peoples sensitivity varies)Ĭontrast/colour change with viewing angleĬonsistent image irrespective of viewing angle Strong bright areas can cause other regions of the picture to dim Tend to suffer from geometric distortions, which may be picture (brightness) dependent, and worsen with age Limited sharpness tend to blur more at high brightness, and with age The table below shows the main factors differentiating LCD and CRT displays from a users' perspective. I'm not going to explain the basics of an LCD panel in any more detail - this is already covered on hundreds of sites. The panel is connected to a dozen or so row- and column-driver chips which address the display with the picture data, and are driven by the rest of the monitors electronics. A large number of test patterns are provided to aid setting and diagnosisĪ modern desktop liquid crystal display (LCD) computer-screen consists of an active-matrix panel and polarizers (which together act as an electrically-controlled pixel-level light filter) situated immediately in front of a backlight (large-area uniform light source - usually consisting of one to four cold-cathode florescent lamps (CCFL) or now LEDs, a lightguide and diffuser). On this page I explain a little of LCD screen technology and give you some pointers to the factors Viewing-angleĭependancies, poor blacks and motion-blur are still issues, particularly for photographic and LCD television applications.Ĭertain flicker or shimmers can be caused by sub-optimal user-adjustment, or shortcuts taken at Image geometry and should be perfectly sharp, in reality they still have various shortcomings. Although liquid crystal displays boast perfect In the past decade, LCD monitors have replaced CRT screens for all but the most specialist applications. ![]()
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