(19)
(11) EP 1 591 983 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.08.2006 Bulletin 2006/33

(43) Date of publication A2:
02.11.2005 Bulletin 2005/44

(21) Application number: 05007967.2

(22) Date of filing: 12.04.2005
(51) International Patent Classification (IPC): 
G09F 9/37(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 28.04.2004 SI 200400127

(71) Applicant: Iskra Mehanizmi, Industrija mehanizmov, aparatov in sistemov d.d.
4245 Kropa (SI)

(72) Inventors:
  • Sirc, Albin
    4240 Radovljica (SI)
  • Hamler, Anton
    9250 Gornja Radgona (SI)
  • Ropret, Janez
    4240 Radovljica (SI)

(74) Representative: Gagel, Roland 
Patentanwalt Dr. Roland Gagel, Landsberger Strasse 480a
81241 München
81241 München (DE)

   


(54) Electro magnetic display pixel driving system


(57) New technical solution of the electromagnetic display pixel driving system solves the problem of switching the display pixel flap between two bistable »ON« and »OFF« positions. The magnetic circuit of the display pixel consists of a permanent magnet (2c) in the display pixel flap (2) and an electro-magnet (5+3u) with a magnetic core (3u). Said permanent magnet (2c) is made using an injection molding process and is divided in two areas with antiparallel direction of magnetization, which is also perpendicular to the flap's surface (2a, 2b) and pivoting axis (2d). Electro magnet (5+3u) is placed under the flap (2) and has a preferably U shaped magnetic core (3u), which is oriented parallel to the pivoting axis (2d). This design minimizes the stray magnetic field and interactions between neighboring display pixels.







Search report