(19)
(11) EP 0 315 365 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.03.1991 Bulletin 1991/12

(43) Date of publication A2:
10.05.1989 Bulletin 1989/19

(21) Application number: 88310086.9

(22) Date of filing: 27.10.1988
(51) International Patent Classification (IPC)4: G09G 3/36
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI LU NL SE

(30) Priority: 04.11.1987 GB 8725824

(71) Applicant: THORN EMI plc
London W1A 2AY (GB)

(72) Inventor:
  • Wright, Graham Leslie
    Ickenham Uxbridge Middlesex, UB10 8HQ (GB)

(74) Representative: Hurst, Richard Arthur Alexander et al
THORN EMI Patents Limited, Central Research Laboratories, Dawley Road
Hayes, Middlesex UB3 1HH
Hayes, Middlesex UB3 1HH (GB)


(56) References cited: : 
   
       


    (54) Display device


    (57) A display device (1) comprises a matrix of selectively settable liquid crystal display cells defined by areas of overlap between members (5-13) of a set of row electrodes and members (2-4) of a set of column electrodes. A first column electrode (2, 3, 4) comprises a plurality of first column portions (a, b, c; A, B, C), each defining a sub-matrix (14, 15, 16). The display device (1) further comprises means (not shown) for driving said first column electrode; selectively operable means (17-22; 40-48) for switching for permitting selective electrical connection from each first column portion to the driving means and means (not shown) for addressing simultaneously rows in more than one sub-matrix.







    Search report