logo
Google
 
Home

LCD HDTV

Introduction

Liquid Crystal Display (LCD) technology can be used to create small or large display panels. They consist a layer of liquide crystal molecules between 2 polarising filters. The filters are at 90 degrees to each other, so no light will pass through them. When an electric field is applied across the liquid crystal it assumes a helical structure and rotates the polarised light passing through it from the back polarised filter, allowing it pass through the front polarised filter.

Advantages Of LCD

  • LCD panels are much low power than plasma and projection large display technologies, saving electricity.
  • Do not suffer from "burn in" problems often associated with plasma displays.

Disadvantages

There are a few disadvantages also:

  • Large displays are expensive.
  • Usually LCDs have slower response times, causing blur on fast moving video sequences.
  • The manufacturing process can result in defective pixels (either stuck on or off). Most manufacturers assume a certain number of defective pixels to be acceptable and will not replace products which come within this range. You should check the allowed number of defects when comparing prices on LCD TVs.
  • The LCD array always allows a small amount of light to pass through, resulting in a brighter black level than other technologies.

Digital Video
Glossary MPEG Bitrate

Video Editing
Intro

HDTV
Introduction Plasma LCD Projection HDTV Antennas

Freeview
Introduction Aerial Channels Coverage PVR Recording STB Guides TV

Media
VCD SVCD DVD DV

TMPGEnc
Beginners Settings

Encode

Author

MHEG-5

Software

Links

If you have any comments please use the feedback form.
Add to Favourites Privacy Policy
Copyright © 2002-2017 Ian Willis. All rights reserved.