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    • 4. 发明授权
    • Method of driving liquid ejection head and drive signal generation device for liquid ejection head
    • 驱动液体喷射头的驱动信号发生装置的驱动方法
    • US08668296B2
    • 2014-03-11
    • US13032438
    • 2011-02-22
    • Kei Hiruma
    • Kei Hiruma
    • B41J29/38
    • B41J2/04501B41J2/04581B41J2/04588
    • A method of driving a liquid ejection head adapted to apply a voltage to the liquid ejection head to eject a liquid including a polymer is provided. The method includes raising the voltage from a first voltage to a second voltage; raising the voltage from the second voltage to a third voltage at a gradient larger than that in raising the voltage from the first to the second voltage, and then holding the voltage at the third voltage; dropping the voltage from the third voltage to a fourth voltage, and then holding the voltage at the fourth voltage; raising the voltage from the fourth voltage to a fifth voltage, and then holding the voltage at the fifth voltage; dropping the voltage from the fifth voltage to a sixth voltage, and then holding the voltage at the sixth voltage; and raising the voltage from the sixth voltage to a seventh voltage.
    • 提供一种驱动适于向液体喷射头施加电压以喷射包括聚合物的液体的液体喷射头的方法。 该方法包括将电压从第一电压升高到第二电压; 将电压从第二电压升高到第三电压,其梯度大于从第一电压升高到第二电压的电压,然后将电压保持在第三电压; 将电压从第三电压降低到第四电压,然后将电压保持在第四电压; 将电压从第四电压提升到第五电压,然后将电压保持在第五电压; 将电压从第五电压降至第六电压,然后将电压保持在第六电压; 并将电压从第六电压升高到第七电压。
    • 6. 发明申请
    • Droplet ejectiing method and droplet ejection apparatus, thin film forming method and device, and electronic device
    • 液滴喷射方法和液滴喷射装置,薄膜​​形成方法和装置以及电子装置
    • US20060238553A1
    • 2006-10-26
    • US11407258
    • 2006-04-20
    • Hidekazu MoriyamaKei Hiruma
    • Hidekazu MoriyamaKei Hiruma
    • B41J29/38
    • B41J2/04588B41J2/04581
    • A drive signal is applied to a pressure-generating element to create pressure that corresponds to the drive signal inside a cavity, and liquid stored in the cavity is ejected as droplets. To enable stable droplet ejection even when a highly viscoelastic material is used, the drive signal contains a first waveform part c for adding a second voltage Vch to a reference potential Vc that is larger than a specific potential by a first voltage Vbc to create negative pressure in the cavity, a second waveform part h for holding the negative pressure in the cavity for a specific amount of time with a hold potential Vh that is larger than the reference potential Vc by the second voltage Vch, and a third waveform part d for reducing the voltage from the hold potential Vh to the specific potential Vb by a third voltage Vbh to increase the pressure in the cavity; and the first voltage Vbc is 10% or less, preferably 4% or less, than the third voltage Vbh.
    • 将驱动信号施加到压力产生元件以产生对应于空腔内的驱动信号的压力,并且存储在空腔中的液体作为液滴喷射。 为了即使使用高粘弹性材料也能够稳定地进行液滴喷射,驱动信号包含第一波形部分c,用于将第二电压Vch加到比第一电压Vbc大的特定电位的参考电位Vc以产生负压 在第二波形部分h中,第二波形部分h用于将具有大于参考电位Vc的保持电位Vh保持在空腔中一段特定时间量的第二电压Vch,以及用于减小第三波形部分d 从保持电位Vh到特定电位Vb的电压为第三电压Vbh以增加空腔中的压力; 第一电压Vbc比第三电压Vbh小10%以下,优选为4%以下。