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Portable Electronics: World Class Designs
book

Portable Electronics: World Class Designs

by John Donovan
March 2009
Intermediate to advanced content levelIntermediate to advanced
576 pages
17h 24m
English
Newnes
Content preview from Portable Electronics: World Class Designs

Chapter 12. Liquid Crystal Displays

Liquid crystal displays have come a long way since the first monochrome versions appeared in digital quartz wrist watches in the 1970s. Today TVs with LCD displays far outsell their CRT counterparts, and almost all portable consumer electronics devices—including well over a billion cell phones sold each year—use them. This is clearly a technology that works.But how does it work? To start with, liquid crystals are neither liquid nor crystals, though they display the characteristics of both. They are large, elongated molecules whose shape can be altered by an electrical field, which in turn determines how much light they absorb. Liquid crystals occur in nature, some of which are used in organic light-emitting ...

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Publisher Resources

ISBN: 9780080950839