Semiconductor display device and method of driving the same
    31.
    发明授权
    Semiconductor display device and method of driving the same 有权
    半导体显示装置及其驱动方法

    公开(公告)号:US07154466B2

    公开(公告)日:2006-12-26

    申请号:US11052143

    申请日:2005-02-07

    IPC分类号: G09G3/36

    摘要: In executing the opposing common inverse drive in an active matrix-type semiconductor display device, a gate bias is suppressed to be comparable with that of the conventional inverse drive to avoid a range in which the off current jumps up and, hence, to suppress the leakage of the stored electric charge, thereby to maintain an ON/OFF margin of the pixel TFTs. The gate bias applied to the pixel TFT is maintained to be near the customarily employed voltage to maintain a gate breakdown voltage, and the electric power is consumed in a decreased amount by the drive circuit as a whole, thereby to provide a novel drive circuit. In the semiconductor display device, a tristate buffer is used for a gate signal line drive circuit, and different buffer potentials are applied depending upon a frame in which the opposing common potential assumes a positive sign and a frame in which the opposing common potential assumes a negative sign, thereby to maintain an ON/OFF margin of the pixel TFTs. The voltage amplitude is decreased during the opposing common inverse drive.

    摘要翻译: 在有源矩阵型半导体显示装置中执行相对的公共反向驱动时,抑制栅极偏压与传统的反向驱动相当,以避免关断电流跳跃的范围,从而抑制 存储电荷的泄漏,从而保持像素TFT的ON / OFF边缘。 施加到像素TFT的栅极偏置保持接近通常采用的电压以保持栅极击穿电压,并且通过驱动电路作为整体以降低的量消耗电力,从而提供新颖的驱动电路。 在半导体显示装置中,三态缓冲器用于栅极信号线驱动电路,并且根据相对的公共电位呈现正号的帧和相对的共同电位呈现为的帧,施加不同的缓冲电位 从而保持像素TFT的ON / OFF边缘。 在相反的公共反向驱动期间,电压幅度减小。

    Driving circuit of liquid crystal display device

    公开(公告)号:US07079121B2

    公开(公告)日:2006-07-18

    申请号:US09928988

    申请日:2001-08-15

    IPC分类号: G09G3/36

    摘要: A driving circuit of a liquid crystal display device including a first insulating substrate on which a plurality of signal lines and a plurality of scan lines are disposed, and pixel transistors made of thin film transistors are disposed in matrix at intersection points of those lines; a second insulating substrate opposite to the first insulating substrate; and a liquid crystal held between the first and second insulating substrates, in which the driving circuit is disposed on the first insulating substrate; each of clock lines or base portions of the clock lines for supplying clock signals to the driving circuit is made of a two-layer structure of the same wiring material as a gate electrode of the thin film transistor and the same wiring material as a source electrode or drain electrode of the thin film transistor; and a wiring line crossing the clock lines or the base portions of the clock lines is made of a wiring line in the same layer as a black matrix covering the pixel transistors.

    Liquid crystal display device
    34.
    发明申请
    Liquid crystal display device 审中-公开
    液晶显示装置

    公开(公告)号:US20060092111A1

    公开(公告)日:2006-05-04

    申请号:US11254683

    申请日:2005-10-21

    IPC分类号: G09G3/36

    摘要: A liquid crystal display device comprises a display panel including a pair of electrode substrates and a liquid crystal layer that is held between the electrode substrates and contains a liquid crystal material whose molecules are transferred in advance from a splay alignment to a bend alignment, and a display panel control circuit that controls transmittance of the display panel by a liquid crystal driving voltage. In particular, the display panel has a voltage-transmittance characteristic that a minimum value and maximum value of the transmittance are obtained in a state where the liquid crystal driving voltage exceeds a transfer threshold level at which an energy of the splay alignment is balanced with an energy of the bend alignment, and the display panel control circuit is configured to vary the liquid crystal driving voltage in a range corresponding to the minimum and maximum values of transmittance.

    摘要翻译: 液晶显示装置包括显示面板,其包括一对电极基板和液晶层,该液晶层保持在电极基板之间并且包含其分子预先从喷射取向转移到弯曲取向的液晶材料,并且 显示面板控制电路,其通过液晶驱动电压来控制显示面板的透射率。 特别地,显示面板具有在液晶驱动电压超过喷射取向的能量平衡的转印阈值水平的状态下获得透射率的最小值和最大值的电压透过率特性, 弯曲取向的能量和显示面板控制电路被配置为在与透射率的最小值和最大值对应的范围内改变液晶驱动电压。

    Display device
    35.
    发明申请
    Display device 有权
    显示设备

    公开(公告)号:US20060022923A1

    公开(公告)日:2006-02-02

    申请号:US11247714

    申请日:2005-10-11

    申请人: Yukio Tanaka

    发明人: Yukio Tanaka

    IPC分类号: G09G3/36

    摘要: To provide a liquid crystal panel employing a circuit layout that makes it possible to obtain a small size liquid crystal panel when the area a source driver occupies is large. A liquid crystal display device of the present invention comprises: a pixel portion including m×n pixels (m and n are both natural numbers and satisfy the relation m

    摘要翻译: 提供一种采用电路布局的液晶面板,当电源驱动器占据的面积大时,可以获得小尺寸液晶面板。 本发明的液晶显示装置包括:包括m×n个像素(m和n都是自然数并满足关系m

    Display device
    37.
    发明授权

    公开(公告)号:US06885366B1

    公开(公告)日:2005-04-26

    申请号:US09672738

    申请日:2000-09-28

    申请人: Yukio Tanaka

    发明人: Yukio Tanaka

    IPC分类号: G09G3/20 G09G3/36 G09G5/00

    摘要: A device such as a liquid crystal display is provide, in which every pixel can sufficiently realize writing of a video signal into a storage capacitor. The liquid crystal display device of the present invention includes left and right gate drivers. The left gate driver is connected to supply selection signals to TFTs of pixels of a left half of a pixel portion. The right gate driver is connected to supply selection signals to TFTs of pixels of a right half of the pixel portion. In the liquid crystal display device of the present invention, timing when the left gate driver outputs a selection signal to a gate signal line connected to a pixel of a column is different from timing when the right gate driver outputs a selection signal to a gate signal line connected to a pixel of the same row as the pixel.