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liquid crystal display

liq·uid crys·tal dis·play
L l

Transcription

    • US Pronunciation
    • US IPA
    • [lik-wid kris-tl dih-spley]
    • /ˈlɪk wɪd ˈkrɪs tl dɪˈspleɪ/
    • US Pronunciation
    • US IPA
    • [lik-wid kris-tl dih-spley]
    • /ˈlɪk wɪd ˈkrɪs tl dɪˈspleɪ/

Definitions of liquid crystal display words

  • noun Technical meaning of liquid crystal display (hardware)   (LCD) An electro-optical device used to display digits, characters or images, commonly used in digital watches, calculators, and portable computers. The heart of the liquid crystal display is a piece of liquid crystal material placed between a pair of transparent electrodes. The liquid crystal changes the phase of the light passing through it and this phase change can be controlled by the voltage applied between the electrodes. If such a unit is placed between a pair of plane polariser plates then light can pass through it only if the correct voltage is applied. Liquid crystal displays are formed by integrating a number of such cells, or more usually, by using a single liquid crystal plate and a pattern of electrodes. The simplest kind of liquid crystal displays, those used in digital watches and calculators, contain a common electrode plane covering one side and a pattern of electrodes on the other. These electrodes can be individually controlled to produce the appropriate display. Computer displays, however, require far too many pixels (typically between 50,000 and several millions) to make this scheme, in particular its wiring, feasible. The electrodes are therefore replaced by a number of row electrodes on one side and column electrodes on the other. By applying voltage to one row and several columns the pixels at the intersections are set. The pixels being set one row after the other, in passive matrix displays the number of rows is limited by the ratio of the setting and fading times. In the setup described above (known as "twisted nematic") the number of rows is limited to about 20. Using an alternative "supertwisted nematic" setup VGA quality displays (480 rows) can be easily built. As of 1995 most notebook computers used this technique. Fading can be slowed by putting an active element, such as a transistor, on the top of each pixel. This "remembers" the setting of that pixel. These active matrix displays are of much better quality (as good as CRTs) but are much more expensive than the passive matrix displays. LCDs are slimmer, lighter and consume less power than the previous dominant display type, the cathode ray tube, hence their importance for portable computers. 1
  • countable noun liquid crystal display A liquid crystal display is a display of information on a screen, which uses liquid crystals that become visible when electricity is passed through them. 0
  • noun liquid crystal display a flat-screen display in which an array of liquid-crystal elements can be selectively activated to generate an image, an electric field applied to each element altering its optical properties; it is used, for example, in portable computers, digital watches, and calculators 0
  • noun liquid crystal display LCD 0
  • noun liquid crystal display A liquid-crystal display is a flat panel display, electronic visual display, or video display that uses the light modulating properties of liquid crystals. 0
  • noun liquid crystal display A display device that uses liquid crystals to control luminance of each pixel or pattern. 0
See all 6 definitions of liquid crystal display

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Parts of speech for Liquid crystal display

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Full grammatical hierarchy of Liquid crystal display

liquid crystal display popularity

A common word. It’s meaning is known to most children of preschool age. About 89% of English native speakers know the meaning and use the word.
Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

liquid crystal display usage trend in Literature

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