Assertion: commercial led | /r/ObjectUse | used as inseven-segment displays
Facets:
value: commonly
type: TEMPORAL
Source sentences:
text: The first commercial LEDs were commonly used as replacements forincandescentandneonindicator lamps, and inseven-segment displays,first in expensive equipment such as laboratory and electronics test equipment, then later in such appliances as TVs, radios, telephones, calculators, and even watches (see list ofsignal uses).