Liquid-crystal display

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Topic: Liquid-crystal display

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	Liquid crystal display television - Wikipedia, the free encyclopedia
		Liquid crystal display television (LCD TV) is a television using LCD technology for its visual output.
		Early LCD television had drawbacks relative to traditional visual display technologies.
		Modern LCD TV sets are geographically universal because they have a multisystem tuner, to display PAL, NTSC and SECAM norms.
	en.wikipedia.org /wiki/Liquid_crystal_display_television (938 words)

	LCD
		As early as the 1930s, some scientists were talking about putting liquid crystals to use in a new form of data display, where their optical properties - and thus what was on the display - would be controlled by temperature changes.
		The phospholipids at this pressure retain enough liquid crystal structure at the ambient temperature to provide a strong cell membrane capable of withstanding the strain.But when the bacterium is brought to the surface, the pressure drop changes the critical temperature at which the liquid crystal cell walls can maintain their structure.
		In a normal liquid, molecules are randomly arranged; but the molecules of a warmed liquid crystal retain some of their original orderliness - just enough order for the liquid crystal to retain the optical properties of a solid.
	www.geocities.com /Omegaman_UK/lcd.html (2753 words)

	Liquid crystal display - Wikipedia, the free encyclopedia
		This type of LCD can produce darker 'blacks' than the transmissive type since light must pass through the liquid crystal layer twice and thus is attenuated twice, however because the reflected light is also attenuated twice in the translucent parts of the display image contrast is usually poorer than a transmissive display.
		A liquid crystal display (LCD) is a thin, flat display device made up of any number of color or monochrome pixels arrayed in front of a light source or reflector.
		Each pixel consists of a column of liquid crystal molecules suspended between two transparent electrodes, and two polarizing filters, the axes of polarity of which are perpendicular to each other.
	en.wikipedia.org /wiki/Liquid_crystal_display (2708 words)

	liquid crystal display from FOLDOC
		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 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.
	foldoc.org /?LCD (378 words)

	The First HP Liquid Crystal Display
		LIQUID CRYSTAL DISPLAYS are used in calculators largely because of their inherent low power dissipation and low voltage requirements.
		Liquid crystal fills the space between the plates, and the molecules are oriented with their directors in the plane of the substrate.
		The ability of a display to perform at low temperature is usually limited by increasing viscosity and attendant slower on-off response, and not by freezing of the liquid.
	www.hpmuseum.org /journals/hp41/41lcd.htm (1209 words)

	LCD - Liquid Crystal Display
		A Liquid Crystal Display works by having two layers of polarised material with liquid crystal in between, when an electrical current is applied to the liquid crystal molecules they become scattered allowing light to pass through.
		LCD refers to a display technology used commonly in notebooks and PDAs, LCD technology has been around for years, it was first suggested in 1963 by George heilmeier & co at RCA's laboratory in Princeton, New Jersey.
		Modern LCD displays use either passive or active (TFT) matrixes, the later producing a sharper image but at a higher cost.
	www.helpwithpcs.com /jargon/lcd.htm (94 words)

	liquid-crystal display
		Display of numbers (for example, in a calculator) or pictures (such as on a pocket television screen) produced by molecules of a substance in a semi-liquid state with some crystalline properties, so that clusters of molecules align in parallel formations.
		When a segment of the seven-segment display is electrified, the liquid crystal twists the polarized light from the front filter, allowing the light to bounce off the rear reflector and illuminate the segment.
		The display is a blank until the application of an electric field, which ‘twists’ the molecules so that they reflect or transmit light falling on them.
	www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0016763.html (317 words)

	LCD-LIQUID CRYSTAL DISPLAY TFT-THIN FILM TRANSISTOR
		Since its advent in 1971 as a display medium, liquid crystal displays have moved into a variety of fields, including miniature televisions, digital still and video cameras and monitors and today many believe that the LCD is the most likely technology to replace the CRT monitor.
		A flat panel LCD monitor is made by sealing liquid compound between two pieces of glass and/or a filter.
		LCDs also have low energy requirements, are generally easy to read, and are better for your eyes because they don't "flicker&; like CRTs do.
	www.tftechnology.com.au /why_choose_tft.htm (292 words)

	Hardware Extreme - LCD Technology
		LCD stands for Liquid Crystal Display are organic substances that reflect light when voltage is applied.
		Crystals in this suspension are naturally aligned parallel with one another, allowing light to pass through the panel.
		LCD monitors are typically found in laptop computers, or inside multimedia projectors.
	www.hwextreme.com /reviews/monitor/lcd/tech/index.shtml (180 words)

	liquid-crystal.html
		Liquid crystal material for display use is normally referred to as TN (STN, DSTN, MSTN, and etc.) or Twisted Nematic--sometimes known as TNFE or Twisted Nematic Field Effect.
		LCD FAQ Part I: Liquid Crystal Display Fundamentals 1.0 General Characteristics and LCD Modes Liquid Crystal Displays (LCDs) are categorized as non- emissive display devices, in that respect, they do not produce any form of light like a Cathode Ray Tube (CRT).
		Liquid crystals encompass a broad group of materials that posses the properties of both a solid and a liquid.
	www.ralentz.com /old/mac/faqs/source/liquid-crystal.html (3219 words)

	Liquid crystal display device having peripheral dummy lines - Patent 5285301
		This liquid crystal display circuit is assembled by forming the individual layers at the sides of the lower transparent glass substrate SUB1 and the upper transparent glass substrate SUB2, by subsequently superposing the upper and lower transparent glass substrates SUB1 and SUB2, and by filling the liquid crystal LC between the two.
		In a liquid crystal display device of an active matrix type, non-linear devices (switching devices) are disposed in such a manner as to correspond to a plurality of pixel electrodes arranged in matrix, respectively.
		A liquid crystal display device according to claim 8, wherein a plurality of dummy pixels are disposed outside of a outermost pixel, and said dummy pixels are masked by a light blocking film.
	www.freepatentsonline.com /5285301.html (7332 words)

	LCD,Liquid Crystal Display
		Because liquid crystal is a chemical that will electrolyze into its components just like water will go to hydrogen and oxygen, or other items will "plate out" components onto one electrode or the other.
		LCD displays, particularly the serial input type, already have the appropriate drivers in the hardware and they are transparent to the user.
		Driving LCDs with only a few segments is easy: you apply a square wave to one face of the LCD (the "backplane") and apply to each segment electrode either the same square wave (segment off) or the anti-phase square wave (segment on).
	techref.massmind.org /techref/lcds.htm (984 words)

	Liquid Crystal Display Calculators
		The second type of display is a reflective type of display, usually called "liquid crystal display" or LCD.
		It uses COS ("Crystal on Substrate") technology where the LCD display was manufactured as an integral part of the glass circuit board.
		By the end of the 70's, LCD displays were seen in 95% of the new calculators.
	www.vintagecalculators.com /html/liquid_crystal_display_calcs.html (521 words)

	Liquid Crystal Display Materials and Related Technologies
		Niopik and Switzerland's Hoffmann-LaRoche (itself a liquid crystal supplier) have a collaboration with Martin Schadt, a contributor to the world patent for TN displays (expired 1991) who is world famous for his structure-property expertise, the relationship between macroscopic properties of liquid crystals and molecular structure (Schadt 1993).
		Polymeric liquid crystal is novel material for which the technology now exists to obtain optical grade monodomain liquid crystal polymer films to make, for example, compensators for STN displays (retardation films) (Toyooka et al.
		The orientation of the liquid crystal optic axis at the substrate is determined by mechanically buffing the alignment layer.
	www.wtec.org /loyola/displays/c2_s5.htm (2297 words)

	Comparing Conventional CRT and Flat Panel LCD Monitors
		LCD monitors, however, usually has what is called a Native resolution, or the resolution that it displays best.
		Newer displays that are coming out have wider viewing angles so this is not as much of an issue as it has been in the past.
		CRT and LCD monitors are based on completely different technologies, and thus have quite different display characteristics.
	www.touchscreens.com /intro-displaytech.html (718 words)

	What is LCD? - A Word Definition From the Webopedia Computer Dictionary
		LCD displays utilize two sheets of polarizing material with a liquid crystal solution between them.
		Short for liquid crystal display, a type of display used in digital watches and many portable computers.
		Color LCD displays use two basic techniques for producing color: Passive matrix is the less expensive of the two technologies.
	www.webopedia.com /TERM/L/LCD.html (543 words)

	Inventor of the Week: Archive
		In a typical display, the liquid crystal material is pressed between two thin layers of glass, which are embossed with an invisible electrode design of segmented bars that in combination make figures.
		This was followed by his first patent for a liquid crystal display (#3,410,999) in 1968, and for a "nematic liquid crystal twist cell display" (# 3,627,408) in 1971.
		The liquid crystal displays then being developed in rival labs applied voltage in "dynamic scattering mode," which consumed too much power with poor results.
	web.mit.edu /invent/iow/fergason.html (532 words)

	High-Tech Dictionary Definition
		(LCD).A type of display used on digital watches, calculators, and laptop computers.LCDs are lighter and consume much less power than other computer displays.Liquid crystals are rod-shaped molecules which spiral when they are exposed to an electrical charge.Polarized light passing through the layer of liquid crystal cells is twisted along the spiral path of the molecules.
	www.computeruser.com /resources/dictionary/definition.html?lookup=3827 (55 words)

	Liquid crystal display - Wikipedia, the free encyclopedia
		A liquid crystal display (LCD) is a thin, flat display device made up of any number of color or monochrome pixels arrayed in front of a light source or reflector.
		Vertical Alignment displays are a form of LC display in which the liquid crystal material naturally exists in a horizontal state removing the need for extra transistors (as in IPS).
		While CRTs are capable of displaying multiple video resolutions, each with the same quality, LCD displays usually produce the crispest images in a "native resolution".
	en.wikipedia.org /wiki/Liquid_crystal_display (2249 words)

	Active Matrix Liquid Crystal Display
		Active matrix liquid crystal display (AMLCD) panels are used to display data, images, symbols, and text for human-readable screens.
		Since the characters are usually imbedded on a flat screen, a display's readability depends on the light that comes through it in the transmission mode.
		An AMLCD needs a source of illumination to give the display sufficient contrast and brightness to be readable.
	www.marlow.com /Applications/DSP/active_matrix_liquid_crystal_dis.htm (419 words)

	Liquid Crystal Display features white LED backlighting., Optrex America, Inc.
		Optrex is a world leader in the design and manufacture of OEM liquid crystal displays (LCDs) for an expanding line of products that includes displays for telecommunications and non-PC Internet devices; test, measurement and diagnostic instruments; handheld data management equipment; and automotive and avionics displays.
		May 26, 2005 - TFT LCD Displays operate from -20 to +70°C. Apr 18, 2005 - High-Reflectance LCDs are readable in high ambient light.
		May 11, 2005 - Sunlight-Readable LCD Displays are offered in 3 types.
	news.thomasnet.com /fullstory/450654 (963 words)

	Liquid-Crystal Display - LCD
		LCD displays are available as an active matrix, dual-scan, or passive-matrix display.
		Short for Liquid-Crystal Display, LCD is a flat display technology used in laptops, calculators and flat screen displays.
		Additional information and help with LCD can be found on our LCD help page.
	www.computerhope.com /jargon/l/lcd.htm (64 words)

	Howstuffworks "How LCDs Work"
		We think of a crystal as a solid material like quartz, usually as hard as rock, and a liquid is obviously different.
		You'll also learn how the strange characteristics of liquid crystals have been used to create a new kind of shutter and how grids of these tiny shutters open and close to make patterns that represent numbers, words or images!
		LCDs are common because they offer some real advantages over other display technologies.
	electronics.howstuffworks.com /lcd.htm (221 words)

	Definition: liquid crystal display
		liquid crystal display (LCD): A display device that creates characters by means of the action of electrical signals on a matrix of liquid cells that become opaque when energized.
		Note: A liquid crystal display may be designed to be viewed by reflected or transmitted light.
	www.atis.org /tg2k/_liquid_crystal_display.html (82 words)

	NCAP Plastic Liquid Crystal Display (Polymeric LCD)
		For informational displays with many separately controlled segments (such as a digital clock), each part of the liquid crystal panel can selectively be turned 'on.' Furthermore, the amount of translucency is proportional to the voltage applied.
		Plastic Liquid Crystal Display (Polymeric LCD) actually gets easier to read in brighter light (just like a piece of paper).
		Behind this liquid crystal cell is a colored reflective pattern.
	www.efunda.com /sponsors/inventables/ncap/ncap_intro.cfm (245 words)

	LCD - Liquid Crystal Display
		A Liquid Crystal Display is an alphanumeric display comprising of a liquid crystal format sandwiched between two films of glass.
		These may be charged or discharged; the current flowing through these points affects the transparency of the crystal adjacent to the dots, so controlling the display.
		The display includes an array of electromagnetic dots.
	www.mpirical.com /companion/Multi_Tech/LCDDisplay.htm (54 words)

	Liquid Crystal Displays: Past, Present, and Future
		Feel free to read it, however, please realize that I am NOT an expert in liquid crystal displays.
		Also, LCD technology has changed drastically in the past few years, so much of what is in this paper may be out of date by now.
	web.media.mit.edu /~stefan/liquid-crystals/liquid-crystals.html (63 words)

	Liquid Crystal Display
		Liquid crystals are molecules which are usually long (like a rod).
		The reason for being called "liquid crystal" is that the molecules are in between these two extremes.
		In crystals, molecules are all lined up in a particular order and have a particular orientation, or way they point in space.
	van.hep.uiuc.edu /van/qa/section/everything_else/Gizmos_and_Gadgets/949080556.htm (179 words)

	liquid-crystal display. The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.
		LCD A low-power flat-panel display used in many laptop computers, calculators and digital watches, made up of a liquid crystal that is sandwiched between layers of glass or plastic and becomes opaque when electric current passes through it.
		The contrast between the opaque and transparent areas forms visible characters.
	www.bartleby.com /61/50/L0195050.html (113 words)

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Topic: Liquid-crystal display

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