Title (en)

Rotating display element and display unit using the same.

Title (de)

Rotierendes Anzeigeelement und dieses benutzende Schaueinrichtung.

Title (fr)

Elément d'affichage rotatif et unité d'affichage utilisant cet élément.

Publication

EP 0218443 A1 19870415 (EN)

Application

EP 86307478 A 19860930

Priority

JP 21980385 A 19851002

Abstract (en)

A rotating display element which is provided with a display surface member having a plurality of display surfaces which are selected by rotating the display surface member, and a display unit which uses the display element. The display surface member of the rotating display element has incorporated therein a permanent magnet type motor mechanism and is driven by the permanent magnet type motor mechanism. The rotor of the permanent magnet type motor mechanism has first and second double-pole permanent magnet members, and its stator has first and second magnetic members having wound thereon first and second exciting windings, respectively. The display unit has first and second power supply means for supplying power to the first exciting winding of the permanent magnet type motor mechanism and third and fourth power supply means for supplying power to the second exciting winding. The plurality of display surfaces of the display surface member can selectively be directed to the front by supplying power to the first exciting winding via the first or second power supply means and by supplying power to the second exciting winding via the third or fourth power supply means. A display panel can be constituted by arranging, in a matrix form, a number of such display units each employing the rotating display element.

IPC 1-7

G09F 9/37; G09F 11/02

IPC 8 full level

G09F 11/00 (2006.01); G09F 9/37 (2006.01); G09F 11/23 (2006.01)

CPC (source: EP KR)

G09F 9/375 (2013.01 - EP); G09F 11/00 (2013.01 - KR)

Citation (search report)

• [Y] EP 0122288 A1 19841024 - WAKATAKE YOSHIMASA
• [Y] EP 0093600 A2 19831109 - WAKATAKE YOSHIMASA
• [A] EP 0126543 A1 19841128 - WAKATAKE YOSHIMASA
• [A] DE 2804169 A1 19780921 - FISCHBACH & MOORE
• [A] US 3465334 A 19690902 - COHEN ARNOLD H, et al
• [A] FR 2368172 A1 19780512 - TELDIX GMBH [DE]

Designated contracting state (EPC)

DE FR GB IT NL

DOCDB simple family (publication)

EP 0218443 A1 19870415; AU 595243 B2 19900329; AU 6342486 A 19870409; CA 1286500 C 19910723; CN 86106733 A 19870429; JP H0736099 B2 19950419; JP S6279495 A 19870411; KR 870004553 A 19870511; KR 900002772 B1 19900430

DOCDB simple family (application)

EP 86307478 A 19860930; AU 6342486 A 19861001; CA 519468 A 19860930; CN 86106733 A 19861003; JP 21980385 A 19851002; KR 860008276 A 19861002