Nine-segment display

Run-through of numeric digits on a nine-segment display.

A nine-segment display is a type of display based on 9 segments that can be turned on or off according to the graphic pattern to be produced. It is an extension of the more common seven-segment display, having an additional two diagonal or vertical segments between the top, middle, and bottom horizontal segments. This provides a minimal method of displaying alphanumeric characters.

In some Russian digital calculators in the 1970s, such as the Elektronika 4-71b [1], 9-segment displays were used to provide basic alphanumerics to avoid confusions with representing numbers in Russian postcode.

Representing numbers in Russian postcode.

The extra two bars were slanted forward, allowing for an appropriate-looking И, and to differentiate the numeral 3 from the letter З. The Sharp Compet calculator also uses a 9-segment display, allowing a small range of characters and symbols

Nine-segment displays are used in many Timex digital watches, and some pagers, such as the Nixxo XPage, [2], the Arch BR502 pager [3], and the Scope Geo N8T [4]. It is also some Epson Stylus printers, and Newport iSeries digital meters [5]. The display used in the iSeries is unique in that it has a vertical extra segment at top, and a fully backwards-leaning slant for the extra segment at bottom. This allows for a somewhat more natural-appearing R and M. The Burroughs Panaplex [6] is a commercially produced nine-segment alphanumeric display.

The letters displayed by a nine-segment display are not necessarily consistently uppercase or lowercase in shape. A common compromise is to use a lower-case "n" instead of "N". Depending on the design of the display segments, the use of the extra two segments may be avoided whenever possible, as in the Nixxo XPage's tall-lowercase "r" and "y". Perhaps to avoid this awkward inconsistency, the Scope Geo N8T does not allow the use of the letters J K Q W X Y or Z.

A nine-segment display has been developed for displaying Bangla and Roman numerals. [1]

See also

Display Configurations


  1. ^ Mahmud, Samiran; Thomas Chowdhury and Manzurul Hasan (2005). "Designing a 9 Segment Display for Bangla and English Numerals". Asian Journal of Information Technology (Medwell Journals) 4 (7). Retrieved 2008-10-07. [dead link]

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Seven-segment display — A typical 7 segment LED display component, with decimal point. A seven segment display (SSD), or seven segment indicator, is a form of electronic display device for displaying decimal numerals that is an alternative to the more complex dot matrix …   Wikipedia

  • The Nine Lives of Fritz the Cat — Infobox Film name = The Nine Lives of Fritz the Cat image size = caption = Theatrical poster director = Robert Taylor producer = Steve Krantz writer = Robert Taylor Fred Halliday Eric Monte narrator = starring = Skip Hinnant music = Tom Scott The …   Wikipedia

  • Binary-coded decimal — In computing and electronic systems, binary coded decimal (BCD) is a digital encoding method for numbers using decimal notation, with each decimal digit represented by its own binary sequence. In BCD, a numeral is usually represented by four bits …   Wikipedia

  • 9 (number) — This article is about the number. For other uses, see 9 (disambiguation). 9 −1 0 1 2 3 4 5 6 7 8 9 → List of numbers Integers …   Wikipedia

  • Wheel of Fortune (Australian game show) — This article is about Wheel of Fortune (Australian game show). For other uses, see Wheel of Fortune (disambiguation). Wheel of Fortune Wheel of Fortune logo Format Game show Created by …   Wikipedia

  • Jeopardy! set evolution — The set of the American television game show Jeopardy! has evolved through a number of iterations during its (non continuous) decades long broadcast history. As the show has matured into a fixture of American popular culture and as display… …   Wikipedia

  • Computers and Information Systems — ▪ 2009 Introduction Smartphone: The New Computer.       The market for the smartphone in reality a handheld computer for Web browsing, e mail, music, and video that was integrated with a cellular telephone continued to grow in 2008. According to… …   Universalium

  • Media and Publishing — ▪ 2007 Introduction The Frankfurt Book Fair enjoyed a record number of exhibitors, and the distribution of free newspapers surged. TV broadcasters experimented with ways of engaging their audience via the Internet; mobile TV grew; magazine… …   Universalium

  • literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… …   Universalium

  • performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical.       The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.