Liquid discharge head and method for manufacturing the same

A liquid discharge head comprising:

• a flow passage member which is formed with a plurality of individual flow passages, each of the individual flow passages including a nozzle and a pressure chamber communicated with the nozzle, the flow passage member having a surface on which the pressure chamber is open;
• a sealing member which is arranged on the surface and configured to seal the pressure chamber;
• and
• an actuator member which has a piezoelectric layer, a driving electrode, and a high electric potential portion, the piezoelectric layer being adhered to a first surface of the sealing member on a side opposite to the flow passage member, via a first adhesive having an insulating property, the driving electrode being arranged on a side opposite to the sealing member with respect to the piezoelectric layer at a position overlapped with the pressure chamber in a first direction orthogonal to the surface, the high electric potential portion being arranged on a side opposite to the sealing member with respect to the piezoelectric layer at an end portion of the piezoelectric layer in a second direction orthogonal to the first direction,
• wherein any one of a high electric potential and a low electric potential lower than the high electric potential is selectively applied to the driving electrode,
• the high electric potential portion is retained at the high electric potential,
• the sealing member is retained at the low electric potential;
• and
• a recess, which is overlapped in the first direction with the high electric potential portion, is formed on at least one of the surface and a second surface of the sealing member on a side opposite to the first surface.