AVIXA Recognized AV Technologist Test 2026 - Free AV Technologist Practice Questions and Study Guide

The correct choice is LCD, which stands for Liquid Crystal Display. This type of display device utilizes liquid crystal compounds that modulate light to create images. In an LCD, the liquid crystals are sandwiched between layers of glass or plastic. When an electrical charge is applied, these crystals change their alignment and, consequently, their opacity, allowing varying amounts of light to pass through. This manipulation of light results in the formation of visible images.

In contrast, DLP (Digital Light Processing) relies on micro-mirrors and a color wheel to project light, not liquid crystals. LED (Light Emitting Diode) displays utilize semiconductor technology to produce light directly rather than using liquid crystals. Lastly, PDP (Plasma Display Panel) operates with tiny cells filled with ionized gases, which create images through light emission when electricity is introduced, distinct from the liquid crystal mechanism of LCDs. Thus, the association of liquid crystal compounds specifically points to LCD technology.