A very large television placed in a small room can be problematic for a person with a vestibular disorder because the screen will dominate the visual field so much that any movement on the screen may create the illusion that it is actually the viewer who is moving.ĭisplay-aspect ratio (not to be confused with “screen-aspect ratio”) characterizes a display’s width relative to height. Viewing distance is an important consideration in selecting a television’s screen size.
TELEVISION DESIGN DIGITAL SCREEN ON SCREEN GUIDELINES PLUS
Screen size is measured diagonally across the viewable screen (for LCD and plasma displays) or across the viewable screen plus the outside casing (for CRT displays). These differences are based on the brain’s ability to process information from a distance (televisions) as opposed to up close (computer monitors).ĭisplay size is expressed by two types of measurement: screen size and display-aspect ratio. Basic terminologyĪ television and a computer monitor share similar technologies, but they may impact visual sensitivity in different ways. To help readers navigate the technical jargon, key points aimed at assisting people with vestibular disorders are flagged with the symbol at left. These are discussed in the following introduction to terminology associated with three common display technologies: cathode-ray tube (CRT), liquid crystal display (LCD), and plasma. Certain types of displays-and certain ways a person might use them-can be more problematic than others. Visual sensitivity from vestibular disorders can be exaggerated when a person uses a computer monitor or watches television.
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Visual Sensitivity from Vestibular Disorders Affects Choice of Television or computer monitor Display
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