(19)
(11) EP 0 109 713 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.01.1986 Bulletin 1986/04

(43) Date of publication A2:
30.05.1984 Bulletin 1984/22

(21) Application number: 83201625

(22) Date of filing: 15.11.1983
(84) Designated Contracting States:
CH DE FR GB LI SE

(30) Priority: 17.11.1982 GB 8232751

(71) Applicants:
  • PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES LIMITED
     ()
  • N.V. Philips' Gloeilampenfabrieken
     ()

(72) Inventor:
  • Phillips, Ian
     ()

   


(54) Alpha-numeric display device and visual display arrangement employing such display devices


(57) An alpha-numeric display device comprises a plurality of elongate elements arranged in the form of a cross (6,7,8) and a diagonal cross (9,10,11,12) within a rectangle (1,2,3,4,5). A full alpha-numeric character set may be generated by approximately energising selected elongate elements. The display device comprises twelve elements instead of the fourteen elements normally provided in such a display device thus reducing the number of electrical connections required and the information required to be stored in order to drive the display.
The elongate elements may be formed as liquid crystal cells and a plurality of display devices may be formed into a multi character display arrangement. When addressing the display devices in matrix form a 4 x 3 matrix may be used instead of the 4 x 4 matrix required for a 14 element display.







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