US 11,813,867 B2
Liquid ejecting head and recording apparatus
Motoki Takabe, Shiojiri (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Jan. 4, 2022, as Appl. No. 17/646,898.
Claims priority of application No. 2021-001309 (JP), filed on Jan. 7, 2021.
Prior Publication US 2022/0212470 A1, Jul. 7, 2022
Int. Cl. B41J 2/14 (2006.01); H10N 30/80 (2023.01)
CPC B41J 2/14233 (2013.01) [H10N 30/802 (2023.02); B41J 2002/14491 (2013.01); B41J 2202/19 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A liquid ejecting head, comprising:
a pressure compartment forming substrate in which a pressure compartment is formed;
a piezoelectric actuator disposed over the pressure compartment;
a sealing plate that forms an opening going from a first surface, which is farther from the pressure compartment, to a second surface, which is closer to the pressure compartment, the sealing plate being configured to cover the piezoelectric actuator located in a first direction with respect to the opening; and
a flexible wiring board inserted in the opening and including a connection portion electrically coupled to the piezoelectric actuator; wherein
a first opening width of the opening at the first surface in the first direction is greater than a second opening width of the opening at the second surface in the first direction,
as viewed in a second direction that is orthogonal to a thickness direction of the sealing plate and orthogonal to the first direction, the entire connection portion extends in the first direction orthogonal to the thickness direction of the sealing plate and is disposed inside the opening at the second surface.