Chapter 6 Understanding Output
Liquid crystal display (LCD) uses a liquid compound to present information on a display device
LCD monitors and LCD screens typically produce color using either active-matrix or passive-matrix technology.
Active-matrix display :
An active-matrix display, also known as a TFT (thin-film transistor) display, uses a separate transistor to apply charges to each liquid crystal cell and thus displays high-quality color that is viewable from all angles.
Passive-matrix display :
A passive-matrix display uses fewer transistors, requires less power, and is less expensive than an active-matrix display. The color on a passive-matrix display often is not as bright as an active-matrix display. Users view images on a passive-matrix display best when working directly in front of it.