Liquid Ejecting Head And Liquid Ejecting Apparatus
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United States of America Patent
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Issued Date -
May 23, 2024
app pub date -
Nov 17, 2023
filing date -
Nov 18, 2022
priority date (Note) -
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Abstract
A liquid ejecting head includes: a piezoelectric element that includes a first drive electrode, a piezoelectric body, and a second drive electrode in a lamination direction; a vibration plate that is provided on one side of the lamination direction with respect to the piezoelectric element and is deformed by driving of the piezoelectric element; a pressure chamber substrate that is provided on the one side of the lamination direction with respect to the vibration plate and is provided with a plurality of pressure chambers; an interlayer that is laminated on at least one of the piezoelectric body, the vibration plate, or the pressure chamber substrate and of which capacitance changes according to humidity; a first detection electrode that is in contact with the interlayer; and a second detection electrode that is in contact with the interlayer and is disposed to be separated from the first detection electrode.
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