Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. system components
7. telecommunication systems components

Anotations

Scope note:

Visual display technology which uses liquid crystals that change their alignment and become visible when electrical voltage is applied to them. Liquid crystals do not emit light directly. They reflect light from an external source, or can be illuminated from behind. LCDs may be made up of any number of segments, large as in the elements of a digital clock, or tiny, representing pixels on a computer or video monitor. They may be in color or monochrome, depending on the application.