Patent ID: 7674494

Claim:
A method for manufacturing a light emitting device comprising the steps of: applying an organic compound from a discharge port of an ink head, which comprises a first pressure generation chamber and a second pressure generation chamber which are connected to each other and provided with a first piezoelectric element and a second piezoelectric element, respectively, into a pixel region by vibrating the first piezoelectric element, while the second piezoelectric element is kept inactivated; and stopping the application of the organic compound by the steps comprising: stopping the vibration of the first piezoelectric element; starting the vibration of the second piezoelectric element after stopping the vibration of the first piezoelectric element; and stopping the vibration of the second piezoelectric element, wherein the organic compound is arranged to be supplied to the second pressure generation chamber from the first pressure generation chamber and then to be applied to the pixel region through the discharge port, and wherein the vibration of the first piezoelectric element and the vibration of the second piezoelectric element are arranged to change a volume of the first pressure generation chamber and a volume of the second pressure generation chamber, respectively.