Passive display device

Details Passive display device Passive display device

G - Physics

09

F

316/5, 313/90

G09F 9/37 (2006.01)

Patent

CA 1229126

ABSTRACT: A passive display device comprises a first supporting plate (10) and a second supporting plate (11) at least one of which is transparent. The device comprises display elements each having at least one fixed electrode (12, 13) and an electrode 16 which is arranged so as to be movable with respect to the fixed electrode (12, 13) and has apertures. The movable electrode 16 can be moved by electrostatic forces between two final positions determined by engaging surfaces (14, 15). In each of the final posi- tions the movable electrode 16 engages an engaging surface (14, 15) whose surface structure is not congruent with that of the surface of the electrode so that a finite number of discrete engaging points is formed between the movable electrode and its engaging surfaces. Furthermore methods are described for manufacturing such a display device.

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