Rain sensor and wiper driving apparatus comprising same

A rain sensor according to an embodiment comprises: a substrate; a sensing electrode formed on a first surface of the substrate; a reaction layer formed on the first surface of the substrate and burying an upper surface of the substrate and the sensing electrode; a driving unit electrically connecte...

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Bibliographische Detailangaben
Hauptverfasser:	Ji, Chil Young, Chang, Ki Chul
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PERFORMING OPERATIONS PHYSICS SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, ORMANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR TESTING TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A rain sensor according to an embodiment comprises: a substrate; a sensing electrode formed on a first surface of the substrate; a reaction layer formed on the first surface of the substrate and burying an upper surface of the substrate and the sensing electrode; a driving unit electrically connected to the sensing electrode formed on the first surface of the substrate and processing a sensing signal transmitted through the sensing electrode; and a protective layer formed surrounding the driving unit, wherein an impedance value according to a change of at least one of a force and a dielectric constant caused by presence of rainfall is changed, and the sensing electrode transmits the sensing signal with respect to a variation amount of the impedance value of the reaction layer to the driving unit.