| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of driving a droplet discharge head by which the uniformity of film thickness of a film pattern formed by discharging droplets is improved, a droplet discharge device and an electro-optical device. SOLUTION: Ranks [1]-[7] corresponding to the quantity of the discharged droplets are respectively corresponded to each of a plurality of the nozzles. A plurality of different driving waveform signals COMs (a first driving waveform signal COMA, a second driving waveform signal COMB, a third driving waveform signal COMC, a forth driving waveform signal COMD) corresponding to the respective ranks of the nozzles are generated in combination so that the practical quantity of the discharged droplets become a predetermined reference weight. The plurality of the driving waveform signal COMs corresponding to the selected each rank of the nozzle are fed to the corresponding piezoelectric element selected based on a draw data and the reference quantity of the droplets is discharged toward a discharge surface from the selected nozzle. COPYRIGHT: (C)2008,JPO&INPIT
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