Seven-segment display: Difference between revisions

Revision as of 18:45, 18 March 2008

Revision as of 16:07, 25 March 2008

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==Alphabetic display==

:''Main article: [[Seven-segment display character representations]]''

In addition to the ten numerals, seven segment displays can be used to show letters of the [[latin alphabet|latin]], [[cyrillic alphabet|cyrillic]] and [[greek alphabet]]s including [[punctuation]], but only few representations are unambiguous and intuitive at the same time: uppercase ''A'', ''B'', ''C'', ''E'', ''F'', ''G'', ''H'', ''I'', ''J'', ''L'', ''N'', ''O'', ''P'', ''S'', ''U'', ''Y'', ''Z'', and lowercase ''a'', ''b'', ''c'', ''d'', ''e'', ''g'', ''h'', ''i'', ''n'', ''ñ'', ''o'', ''q'', ''r'', ''t'', ''u''. Thus, [[ad hoc]] and corporate solutions dominate the field of alphabetics on seven-segment displays, which is usually not considered essential and only used for basic notifications, such as internal test messages on equipment under development. (For detailed tables of alternative seven-segment symbols for letters and punctuation, see the separate article [[seven-segment display character representations]].)

In addition to the ten numerals, seven segment displays can be used to show letters of the [[latin alphabet|latin]], [[cyrillic alphabet|cyrillic]] and [[greek alphabet]]s including [[punctuation]], but only few representations are unambiguous and intuitive at the same time: uppercase ''A'', ''B'', ''C'', ''E'', ''F'', ''G'', ''H'', ''I'', ''J'', ''L'', ''N'', ''O'', ''P'', ''S'', ''U'', ''Y'', ''Z'', and lowercase ''a'', ''b'', ''c'', ''d'', ''e'', ''g'', ''h'', ''i'', ''n'', ''ñ'', ''o'', ''q'', ''r'', ''t'', ''u''. Thus, [[ad hoc]] and corporate solutions dominate the field of alphabetics on seven-segment displays, which is usually not considered essential and only used for basic notifications, such as internal test messages on equipment under development. (For detailed tables of alternative seven-segment symbols for letters and punctuation, see the separate article [[seven-segment display character representations]].)

Using a restricted range of letters that look like (upside-down) digits, seven-segment displays are commonly used by school children to form words and phrases using a technique known as "[[calculator spelling]]".