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    • 35. 发明授权
    • Piezoelectric element
    • 压电元件
    • US07358653B2
    • 2008-04-15
    • US11798460
    • 2007-05-14
    • Toshio Nishimura
    • Toshio Nishimura
    • H01L41/083
    • H01L41/083H01L41/0533
    • Provided is a piezoelectric element including a monolithic piezoelectric substrate that can prevent not only migration between internal electrodes, but also deterioration resulting from a decrease in the degree of polarization even when temperature changes are repeatedly applied to the piezoelectric element. A piezoelectric element 1, in which a first external electrode 4 and a second external electrode 5 are formed on a first side face 2c and a second side face 2d, respectively, of a monolithic piezoelectric substrate 2 including first internal electrodes 3b and 3d placed at a first electric potential and second internal electrodes 3a, 3c and 3e placed at a second electric potential, which is different from the first electric potential, stacked with piezoelectric layers interposed therebetween, and exterior portions 6 and 7 for preventing migration are provided to cover a third side face 2e and a fourth side face 2f. The exterior portions 6 and 7 contain dispersed electroconductive particles and can prevent not only migration between adjacent internal electrodes, but also a decrease in the degree of polarization resulting from the pyroelectric effect.
    • 提供了一种压电元件,其包括可以防止内部电极之间迁移的单片式压电基板,而且即使当温度变化反复施加到压电元件时也由于偏振度的降低而导致的劣化。 压电元件1,其中第一外部电极4和第二外部电极5分别形成在包括第一内部电极3b和第二内部电极3b的单片压电基板2的第一侧面2c和第二侧面2d上, 3d放置在第一电位,第二内部电极3a,3c和3c被放置在与第一电位不同的第二电位,层压有压电层,并且外部部分6和7用于 提供防止迁移以覆盖第三侧面2 e和第四侧面2f。 外部部分6和7包含分散的导电颗粒,并且不仅可以防止相邻内部电极之间的迁移,还可以防止由热电效应引起的偏振度的降低。
    • 36. 发明授权
    • Liquid crystal display device
    • 液晶显示装置
    • US5734379A
    • 1998-03-31
    • US579599
    • 1995-12-26
    • Masayuki NatsumiKazutomo FujitaToshio NishimuraMasami Azuma
    • Masayuki NatsumiKazutomo FujitaToshio NishimuraMasami Azuma
    • G09G3/36G09G5/00
    • G09G3/3681G09G3/3696G09G2330/021
    • The present invention discloses a liquid crystal display device capable of reducing charges to be supplied from a driving circuit, increasing response speed of liquid crystals and delivering superior display. A liquid crystal display device is provided with a switching circuit between scanning electrodes of a liquid crystal display panel 25 and a common driver. The switching circuit is provided with switching elements, and each switching element is disposed between two scanning electrodes adjacent to each other. Furthermore, each switching element is turned on and off by a control means. For a predetermined period after the completion of a horizontal scanning period, a scanning electrode, to which a selection potential has been applied during the horizontal scanning period, and a scanning electrode, to which the selection potential is to be applied next are isolated once from a power supply circuit, and then electrically connected to each other by turning on the switching element so as to have an identical potential. With this structure, power to be supplied from the common driver can be reduced.
    • 本发明公开了一种液晶显示装置,其能够降低从驱动电路供给的电荷,提高液晶的响应速度并提供优异的显示。 液晶显示装置在液晶显示面板25的扫描电极和公共驱动器之间设置有切换电路。 开关电路设置有开关元件,并且每个开关元件设置在彼此相邻的两个扫描电极之间。 此外,通过控制装置使每个开关元件接通和断开。 在水平扫描周期完成之后的预定时间段,在水平扫描周期期间已经施加了选择电位的扫描电极和下一个施加选择电位的扫描电极被隔离一次从 电源电路,然后通过使开关元件导通而具有相同的电位而彼此电连接。 利用这种结构,可以减少从公共驱动器提供的功率。