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    • 83. 发明授权
    • Liquid crystal panel and liquid crystal display apparatus
    • 液晶面板和液晶显示装置
    • US08493527B2
    • 2013-07-23
    • US12489629
    • 2009-06-23
    • Takaaki IshiiMasatsugu HigashiNao Murakami
    • Takaaki IshiiMasatsugu HigashiNao Murakami
    • G02F1/1335
    • G02F1/13363G02F1/133528G02F1/133536G02F1/133634
    • The liquid crystal panel according to an embodiment of the present invention includes a liquid crystal cell, a first polarizing plate placed on one side of the liquid crystal cell, a second polarizing plate and a third polarizing plate placed on the other side of the liquid crystal cell in an order starting from a side of the liquid crystal cell, and a retardation plate (A) placed between the liquid crystal cell and the second polarizing plate, wherein a refractive index ellipsoid of the retardation plate (A) has a relationship of nx≧ny>nz, a difference (ΔT2−1=T2−T1) between a transmittance (T2) of the second polarizing plate and a transmittance (T1) of the first polarizing plate is larger than 0%, a difference (ΔT3−2=T3−T2) between a transmittance (T3) of the third polarizing plate and a transmittance (T2) of the second polarizing plate is 4.0% to 7.5%, and the third polarizing plate is a linearly polarized light separation type reflective polarizing plate.
    • 根据本发明实施例的液晶面板包括液晶单元,位于液晶单元一侧的第一偏振板,位于液晶单元的另一侧的第二偏振板和第三偏振板 单元,从液晶单元的一侧开始的顺序,以及放置在液晶单元和第二偏振板之间的相位差板(A),其中相位差板(A)的折射率椭圆具有n× > nz,第二偏振片的透射率(T2)与第一偏振片的透射率(T1)之间的差(DeltaT2-1 = T2-T1)大于0%,ΔT3- 第三偏光板的透射率(T3)与第二偏光板的透射率(T2)之比为4.0%〜7.5%,第三偏光板为直线偏振光分离型反射偏光板 。
    • 87. 发明授权
    • Motor driving circuit
    • 电机驱动电路
    • US07919944B2
    • 2011-04-05
    • US12200744
    • 2008-08-28
    • Takaaki IshiiTakashi TsukagoshiAkira Suzuki
    • Takaaki IshiiTakashi TsukagoshiAkira Suzuki
    • H02P1/04H02P6/20
    • H02P25/034
    • A motor driving circuit for controlling a current amount flowing through a motor coil includes: a comparator configured to output a comparison signal indicating a comparison result between a set current amount and a current amount based on an inputted set current signal according to the set current amount and a current signal according to the current amount flowing through the motor coil; a current control signal update circuit configured to update a current control signal for controlling the current amount flowing through the motor coil in a stepwise manner so that the current amount flowing through the motor coil is changed to the set current amount in a stepwise manner, based on the comparison signal outputted from the comparator; and a driving circuit configured to drive the motor coil based on the current control signal outputted from the current control signal update circuit.
    • 用于控制流过电动机线圈的电流量的电动机驱动电路包括:比较器,被配置为根据设定的电流量输出表示设定电流量与电流量之间的比较结果的比较信号,该比较信号基于输入的设定电流信号 以及根据流过电动机线圈的电流量的电流信号; 电流控制信号更新电路,被配置为以逐步的方式更新用于控制流过电动机线圈的电流量的电流控制信号,使得流过电动机线圈的电流量以逐步的方式被改变为设定电流量 对比较器输出的比较信号; 以及驱动电路,被配置为基于从当前控制信号更新电路输出的电流控制信号来驱动电动机线圈。