Patent ID: 7448733

Claim:
A liquid droplet ejecting head comprising: a nozzle that ejects liquid droplets; a pressure chamber communicated with the nozzle and into which a liquid is filled; a piezoelectric element substrate having a diaphragm that forms a part of the pressure chamber and a piezoelectric element that displaces the diaphragm; a liquid pool chamber that is disposed opposite from the pressure chamber with the piezoelectric element substrate being disposed therebetween and which pools liquid supplied to the pressure chamber; an upper substrate disposed the liquid pool chamber and the piezoelectric element substrate so as to be separated from and face the piezoelectric element substrate with a through port for supplying liquid to the pressure chamber from the liquid pool chamber formed therein; a driver that is mounted on the upper substrate and which drives the piezoelectric element; and a connecting component arranged between the upper substrate and the piezoelectric element substrate and which electrically connects the piezoelectric element to the upper substrate.