Electrowetting elements and optical display devices

The present invention relates to reducing backflow in an electrowetting element for modifying a radiation beam characteristic. The electrowetting element comprises a first and a second fluid which are immiscible with each other and are switchable between a first configuration and a second configurat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HAYES ROBERT, MASSARD ROMARIC, VAN DE WEIJER-WAGEMANS MELANIE MARIA HUBERTINA
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to reducing backflow in an electrowetting element for modifying a radiation beam characteristic. The electrowetting element comprises a first and a second fluid which are immiscible with each other and are switchable between a first configuration and a second configuration by application of a voltage across at least one of the first and second fluids. There is a tendency for backflow of the second fluid from the first configuration to the second configuration when the second fluid is switched to be provided in the first configuration. The electrowetting element comprises a backflow reducer arranged for reducing the backflow of the second fluid from the first configuration to the second configuration when the second fluid is switched to be provided in the first configuration.