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EP0010796A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Display device consisting of an electrooptical liquid cell

Assignee: International Standard Electric Corp
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Filing: 1979-10-09
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Granted: —
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Expires: 1999-10-09
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Abstract

Abstract 1. Indicating arrangement consisting of a liquid cell in which the light diffusion of a liquid layer lying between transparent electrodes is switchable by the application of a voltage and in which a light source is provided behind the rear cover plate of the liquid cell and a masking element is provided between the light source and the liquid coll, which masking element, in the direction of observation, prevents the direct passage of light to the observer viewing the liquid cell from the front, characterised in this, that the masking element and the rear cover plate, turned towards the light source (8), of the liquid cell (10) are integrated into a single plate as the rear wall (9).

Inventors

  • 👤 Manfred Tischer
  • 👤 Klaus-Peter Voigt

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-26 19:33
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133502

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE2237084A1 Cited
US3971869A Cited
US3811751A Cited
US3838909A Cited
FR2270625A1 Cited
CH601823A5 Cited

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