Patent ID: 6603458
Filing Date: 2003-08-05
Classification: G09F,Y10S

Abstract:
An electromagnetic display apparatus, comprising:a base plate; a panel having substantially square pixels divided into two parts with each said substantially square pixel having a rotatably mounted bistable tilting flap asymmetrically arranged relative to its rotational axis, with each said pixel having an opening in said panel, said tilting flap covering a first part of said two parts of said panel when said tilting flap lies in each of its two stable positions, with a first side of said tilting flap facing a front side of said panel and said first part of said panel covering one of said two parts of said panel being covered by said tilting flap in this position, said first side of said tilting flap having a first color and said second side of said tilting flap and a second part of said two parts of said panel having a second color; a pin for each respective said pixel is located on said base plate and facing in a direction of said opening in said panel; a light-emitting diode mounted on said pin; an electromagnet located on a reverse side of said panel and allocated to said pixels, said electromagnet having a coil body with a coil head, a coil base and a core, with said coil head being fastened onto said panel and said coil base being inserted into said base plate; and, a permanent magnet being fitted to said tilting flap in close proximity to said rotational axis of said tilting flap, said tilting flap being displaced from a first position into a second position by said electromagnet.