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LCD
Last modified: Wednesday, June 02, 2004 

Short for liquid crystal display, a type of display used in digital watches and many portable computers. LCD displays utilize two sheets of polarizing material with a liquid crystal solution between them. An electric current passed through the liquid causes the crystals to align so that light cannot pass through them. Each crystal, therefore, is like a shutter, either allowing light to pass through or blocking the light.

Monochrome LCD images usually appear as blue or dark gray images on top of a grayish-white background. Color LCD displays use two basic techniques for producing color: Passive matrix is the less expensive of the two technologies. The other technology, called thin film transistor (TFT) or active-matrix, produces color images that are as sharp as traditional CRT displays, but the technology is expensive. Recent passive-matrix displays using new CSTN and DSTN technologies produce sharp colors rivaling active-matrix displays.

Most LCD screens used in notebook computers are backlit, or transmissive, to make them easier to read.

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HP Home & Home Office Store: LCD Monitors and TVs - Buy HP flat-panel LCD Monitors and HP HD-Ready LCD Televisions at the Official Hewlett-Packard store.


For internet.com pages about LCD . Also check out the following links!

Related Links

Report on Japanese display technology R&D; 
This June 92 report is one in a series of reports prepared through the Japanese Technology Evaluation Center (JTEC), sponsored by the National Science Foundation (NSF) . The report describes research and development efforts in Japan in the area of display technologies. Includes information on electroluminescent, plasma, and liquid crystal displays.

Active Matrix LCD Technology Paper
Describes the manufacturing and infrastructure of active matrix and liquid crystal displays.

Comparison of LCD to typical CRT monitors
A comparison between flat LCD and traditional CRT monitors, including display sizes, physical size, display charactersitics, and energy features.

Flat Panel Display Technology Overview
Outlines the various flat panel display technologies, including DSTN, TFT, Plasma, FEDs, etc. Includes graphics, diagrams and an integrated glossary. This page is from "The PC Technology Guide."

LCD Information and Technical Forum
Contains links to LCD information sources, FAQs, projects, applications, data sheets, products, tradeshows, publications, manufacturers, and related Web sites.

Polymer and Liquid Crystals project
Contains a virtual library and lab that provides introductory information about polymers, liquid crystals, and polymer liquid crystals.

Trends in AM LCD Technology
Describes LCD versus CRT and other aspects of AM LCD displays.

Sponsored listings

Densitron: Liquid Crystal Display (LCD) Modules - Densitron designs and manufactures standard and custom alphanumeric and graphic LCDs, OLEDs, backlights, touchscreens and electronics to drive them.

ScanPlanet.com: LCD Monitors - Sells touchscreen LCD monitors for entering data and controlling process from retail POS applications, factory control systems, and medical systems.

Liquid Crystal Displays (LCDs): GrafTech International (AET) - eGRAF(r) thermal solutions offer a unique combination of flexibility, weight savings and performance improvement to the electronic thermal management.

GlobalSpec.com: Liquid Crystal Displays (LCDs) - Database of suppliers for liquid crystal displays, X-Ray diffraction instruments and more. Provides catalogs and supplier contact information.

Mitsubishi: Liquid Crystal Displays - Manufactures of portable, high-brightness DLP and LCD multimedia projectors for business and home.

related categories

Flat-Panel displays

Monitors

Output Devices

Peripheral Devices

related terms

active matrix display

backlighting

CSTN

dead pixel

DLP

DSTN

electroluminescent display (ELD)

flat-panel display

gas-plasma display

LCD monitor

LCD printer

LED

notebook computer

OLED

PLED

reflective

supertwist

TFT

transflective

transmissive


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