Assertion: small lcd | /r/ObjectUse | used in calculator
Facets:
value: since the 1970s
type: TEMPORAL
value: widely
type: DEGREE
Source sentences:
text: Small LCDs like this one have been widely used in calculators and digital watches since the 1970s, but they were relatively expensive in those days and produced only black-and-white (actually, dark-blueish and white) images.