# 17-31-003

sign matrix

sign designed to display a variable message by means of an array of elementary units, each of which can be individually illuminated or otherwise altered in appearance

Note 1 to entry: This entry was numbered 845-11-04 in IEC 60050-845:1987.

Note 2 to entry: This entry was numbered 17-1182 in CIE S 017:2011.

Publication date: 2020-12