(19)
(11) EP 1 187 089 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.06.2005 Bulletin 2005/26

(43) Date of publication A2:
13.03.2002 Bulletin 2002/11

(21) Application number: 01306883.8

(22) Date of filing: 13.08.2001
(51) International Patent Classification (IPC)7: G09G 3/28, G09G 3/20
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 05.09.2000 JP 2000273545
14.12.2000 JP 2000380289

(71) Applicants:
  • Hitachi, Ltd.
    Chiyoda-ku, Tokyo (JP)
  • Fujitsu Hitachi Plasma Display Limited
    Kawasaki-shi, Kanagawa-ken 213-0012 (JP)

(72) Inventors:
  • Naka, Kazutaka, c/o Hitachi Ltd.
    Chiyoda-ku, Tokyo 100 (JP)
  • Takeuchi, Masanori, c/o Fujitsu Hitachi
    Kawasaki-shi, Kanagawa-ken 213-0012 (JP)

(74) Representative: Calderbank, Thomas Roger et al
Mewburn Ellis LLP York House 23 Kingsway
London WC2B 6HP
London WC2B 6HP (GB)

   


(54) Display and image displaying method


(57) A display and an image displaying method which ensure gradation expression by a sub field system limits display resolution information in predetermined sub fields, excluding a lower sub field, thereby shortening an address control period. Further, noise dots originated from error diffusion is made less noticeable dot by dot by independently controlling the least significant sub field. This limits the amount of resolution information of a displayed image and improves the general image quality.






Search report