04383255 is referenced by 68 patents and cites 4 patents.

Each segment of a display device, e.g., a seven-segment display comprises at least one shutter normally obturating a cavity in a carrier on a base plate. Each shutter is suspended by two resilient attachments and can turn about a torsion axis established by these attachments under the influence of an electric field applied between a common electrode on a transparent cover plate and an electrode, individual to the shutter at the bottom of its cavity. An optical contrast is provided by light reflection or absorbance caused by a shutter remaining in a rest obturating position or rotating to an open position to allow light absorption in an absorbing layer backing the base plate which is transparent. A selective light transmission (light valve) construction is equally possible. The shutters themselves may be used as one electrode of each pair, with the torsion axis along a shutter edge. The shutters may be immersed in a liquid dielectric so that a smaller opening angle is required and the attachments can be shaped to provide the required degree of resilience.

Title
Miniature display device
Application Number
6/242298
Publication Number
4383255
Application Date
March 10, 1981
Publication Date
May 10, 1983
Inventor
Raymond Guye
Colombier
CH
Raymond Vuilleumier
Fontainemelon
CH
Martyn Andrew Cadman
Hauterive
CH
Pierre Andre Grandjean
Neuchatel
CH
Agent
Parkhurst & Oliff
Assignee
Centre Electronique Horloger
CH
IPC
G08B 5/36
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