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    • 27. 发明授权
    • Circuit having source follower and semiconductor device having the circuit
    • 具有源极跟随器和具有该电路的半导体器件的电路
    • US07595794B2
    • 2009-09-29
    • US11474938
    • 2006-06-27
    • Hiroyuki MiyakeYutaka Shionoiri
    • Hiroyuki MiyakeYutaka Shionoiri
    • G06F3/038G09G5/00
    • G09G3/20G09G2310/0275H03F1/301H03F3/505
    • When a potential of a power supply line varies according to a flowing current, the gate-source voltage Vgs of a transistor also varies, leading to variations in the constant current between each source follower. In order to solve this problem, a potential Vb of the gate terminal of a transistor as a constant current source is changed in the same manner as a power supply line Vss which is connected to the source terminal of the transistor. Therefore, variations in the constant current are suppressed and variations in the output of the source followers are thus suppressed. In addition, by connecting the circuit having source followers to the output side of a signal line driver circuit, it can be prevented that luminance unevenness of a striped pattern is recognized in a display portion of a semiconductor device.
    • 当电源线的电位根据流动电流而变化时,晶体管的栅极 - 源极电压Vgs也变化,导致每个源极跟随器之间的恒定电流的变化。 为了解决这个问题,作为恒流源的晶体管的栅极端子的电势Vb以与连接到晶体管的源极端子的电源线Vss相同的方式改变。 因此,抑制恒定电流的变化,从而抑制源极跟随器的输出的变化。 此外,通过将具有源极跟随器的电路连接到信号线驱动电路的输出侧,可以防止在半导体器件的显示部分中识别出条纹图案的亮度不均匀。
    • 28. 发明授权
    • Source follower, voltage follower, and semiconductor device
    • 源极跟随器,电压跟随器和半导体器件
    • US07307463B2
    • 2007-12-11
    • US10815775
    • 2004-04-02
    • Hiroyuki MiyakeYutaka Shionoiri
    • Hiroyuki MiyakeYutaka Shionoiri
    • H03K5/153G09G3/36
    • G11C19/28G09G3/3685G09G2310/0275G11C19/00G11C19/184H03F3/505
    • A source follower in which any one of the following three modes is selected by a plurality of switching elements: a first mode in which a first potential is supplied to a gate of a transistor and an input potential is supplied to a first electrode of a capacitor respectively and a second electrode of the capacitor and a source of the transistor are connected, a second mode in which an input potential is supplied to the first electrode and the gate of the transistor and the second electrode floats, and a third mode in which the first electrode and the gate of the transistor are connected and a potential thereof floats and a second potential is supplied to the second electrode, a drain of the transistor is supplied with a third potential, and a potential of the source of the transistor is supplied to a subsequent circuit.
    • 源跟随器,其中以下三种模式中的任何一种由多个开关元件选择:第一模式,其中第一电位被提供给晶体管的栅极并且输入电位被提供给电容器的第一电极 分别连接电容器的第二电极和晶体管的源极,其中输入电位被提供给第一电极并且晶体管和第二电极的栅极浮置的第二模式以及第三模式,其中 第一电极和晶体管的栅极连接,并且其电位浮动,并且第二电位被提供给第二电极,晶体管的漏极被提供第三电位,并且将晶体管的源极的电位供给到 一个后续的电路。