Liquid ejecting head and liquid ejecting apparatus

A liquid ejecting head, comprising:

• a pressure-chamber-defining member having a plurality of pressure chamber spaces that are arranged along a first direction, the pressure chamber spaces serving as pressure chambers in communication with nozzles;
• and
• a piezoelectric element having a first electrode layer, a piezoelectric layer, and a second electrode layer that are stacked in this order from a flexible plate on one side of the pressure-chamber-defining member and positioned above the pressure chamber spaces,
• the first electrode layer being divided into separate first electrodes corresponding to the respective pressure chamber spaces, and the second electrode layer being a continuous electrode extending along the first direction across the pressure chamber spaces,
• each of the separate first electrodes having a first portion and a second portion, the first portion being narrower than a corresponding one of the pressure chamber spaces when seen in the first direction, and the second portion being narrower than the first portion when seen in the first direction,
• the first portion being positioned in a region that corresponds to an opening of the corresponding one of the pressure chamber spaces and that includes a center of the opening of the corresponding one of the pressure chamber spaces, the center being a center of the opening of the corresponding one of the pressure chamber spaces when seen in a second direction intersecting the first direction, and
• the second portion continuously extending from the first portion to a region that corresponds to outside of the opening of the corresponding one of the pressure chamber spaces in the second direction,
• wherein:
• the piezoelectric layer has holes in regions between the pressure chamber spaces adjacent to each other along the first direction;
• and
• a boundary portion of each of the separate first electrodes, the boundary portion being a portion between the first portion and the second portion, is in a position displaced from (i) one of opposite ends in the second direction of a corresponding one of the holes in the piezoelectric layer toward (ii) the center of the opening of the corresponding one of the pressure chamber spaces.