Display driver for reducing crosstalk by detecting current at the common
electrode and applying a compensation voltage to the common electrode
    2.
    发明授权
    Display driver for reducing crosstalk by detecting current at the common electrode and applying a compensation voltage to the common electrode 失效
    显示驱动器,通过检测公共电极上的电流并向公共电极施加补偿电压来减少串扰

    公开(公告)号:US5818402A

    公开(公告)日:1998-10-06

    申请号:US588846

    申请日:1996-01-19

    IPC分类号: G09G3/36 G09G3/20

    CPC分类号: G09G3/3655 G09G2320/0209

    摘要: A common-voltage compensation driving apparatus and method and a crosstalk-compensation driving apparatus of an AMLCD detect current flowing through a common electrode for an optional period to compensate for a common electrode voltage by using the current value as a reference and eliminate crosstalk resulting from the variation of a video data value. The common-voltage compensation driving apparatus includes a current detector for detecting the current flowing through a common electrode for an optional period, a proportional voltage generator for integrating the current detected by the current detector to generate a proportional voltage corresponding to the integrated current, a common voltage generator for compensating the proportional voltage of the proportional voltage generator to a common electrode voltage during a compensating period shorter than one horizontal scanning period, and a controller for controlling driving times of the current detector, proportional voltage generator and common voltage generator. The method therefor is performed by a current detecting step, a proportional voltage generating step, and a common voltage generating step. The crosstalk compensation driving apparatus has the current detector, the proportional voltage generator, a data signal voltage compensator for compensating the proportional voltage of the proportional voltage generator to a data signal voltage output during a compensating period shorter than one horizontal scanning period, and the controller.

    摘要翻译: AMLCD的公共电压补偿驱动装置和方法以及串扰补偿驱动装置通过使用当前值作为参考来检测流过公共电极的电流,以选择周期来补偿公共电极电压,并消除由 视频数据值的变化。 公共电压补偿驱动装置包括:电流检测器,用于检测在任意周期内流过公共电极的电流;比例电压发生器,用于积分由电流检测器检测的电流,以产生与积分电流相对应的比例电压; 公共电压发生器,用于在比一个水平扫描周期短的补偿期间内将比例电压发生器的比例电压补偿为公共电极电压;以及控制器,用于控制电流检测器,比例电压发生器和公共电压发生器的驱动时间。 其方法通过电流检测步骤,比例电压产生步骤和公共电压产生步骤来执行。 串扰补偿驱动装置具有电流检测器,比例电压发生器,用于将比例电压发生器的比例电压补偿到短于一个水平扫描周期的补偿周期期间的数据信号电压输出的数据信号电压补偿器,并且控制器 。

    Liquid crystal display device having a digitizer
    3.
    发明授权
    Liquid crystal display device having a digitizer 有权
    具有数字化仪的液晶显示装置

    公开(公告)号:US07009593B2

    公开(公告)日:2006-03-07

    申请号:US10682912

    申请日:2003-10-14

    IPC分类号: G09G3/36 G09G5/00

    摘要: The present invention discloses a first frame, a liquid crystal panel supported by the first frame, the liquid crystal panel having a display region and a side wall portion, a digitizer located on the liquid crystal panel, the digitizer having a peripheral portion, and a second frame having a front surface with an opening region and a side wall portion, the front surface pressurizing the peripheral portion of the digitizer, the opening region formed at a location corresponding to the display region of the liquid crystal panel.

    摘要翻译: 本发明公开了一种第一框架,由第一框架支撑的液晶面板,具有显示区域和侧壁部分的液晶面板,位于液晶面板上的数字化仪,具有周边部分的数字化仪,以及 第二框架具有带有开口区域和侧壁部分的前表面,所述前表面对所述数字化仪的周边部分加压,所述开口区域形成在与所述液晶面板的显示区域对应的位置处。

    Touch screen structure to prevent image distortion
    4.
    发明授权
    Touch screen structure to prevent image distortion 有权
    触摸屏结构,防止图像失真

    公开(公告)号:US06876355B1

    公开(公告)日:2005-04-05

    申请号:US09572498

    申请日:2000-05-18

    摘要: A touch panel-mounted liquid crystal panel minimizes picture distortion upon driving of the touch panel. In the liquid crystal panel, a lower glass substrate has switching devices provided in the vicinity of intersections between data lines and gate lines. An upper glass substrate has a black matrix joined to it. Patterned clusters of spacers are positioned at an area corresponding to the black matrix in such a manner to enlarge its contact area with the upper glass substrate, thereby keeping a uniform distance between the upper and lower glass substrates. The enlarged contact area allows the patterned clusters of spacers to sufficiently absorb a pressure load of a finger or a stylus pen. Accordingly, uniform distance between the upper and lower glass substrates is maintained even upon driving the touch panel. As a result, light deterioration and local image distortion is prevented or minimized.

    摘要翻译: 触摸面板安装的液晶面板在触摸面板驱动时使图像失真最小。 在液晶面板中,下部玻璃基板具有设置在数据线和栅极线之间的交叉点附近的开关元件。 上玻璃基板具有与其接合的黑色矩阵。 图案化的间隔物簇以与黑色矩阵相对应的区域定位,以扩大其与上玻璃基板的接触面积,从而保持上下玻璃基板之间的均匀距离。 扩大的接触面积允许图案化的间隔物簇足以吸收手指或触控笔的压力负载。 因此,即使在驱动触摸面板时也保持上下玻璃基板之间的均匀距离。 结果,防止或最小化光劣化和局部图像失真。

    Method of driving liquid crystal panel and apparatus
    8.
    发明授权
    Method of driving liquid crystal panel and apparatus 有权
    驱动液晶面板及其装置的方法

    公开(公告)号:US07164405B1

    公开(公告)日:2007-01-16

    申请号:US09327282

    申请日:1999-06-04

    IPC分类号: G09G3/36

    摘要: A method and apparatus of driving a liquid crystal panel to prevent an image distortion and a non-uniform phenomenon in the light transmissivity caused by propagation delay in a scanning wiring of the liquid crystal panel. Data signal voltages are supplied to a signal wiring with a predetermined time interval in accordance with a delay characteristic of a scanning signal in the scanning wiring. Accordingly, even when the scanning signal is delayed in the scanning wiring, the data signal voltages are accurately applied to all liquid crystal cells and hence a picture displayed on the liquid crystal panel is not distorted.

    摘要翻译: 驱动液晶面板的方法和装置,以防止由于液晶面板的扫描布线中的传播延迟引起的光透射率中的图像失真和不均匀的现象。 根据扫描配线中的扫描信号的延迟特性,以预定的时间间隔将数据信号电压提供给信号布线。 因此,即使在扫描布线中的扫描信号被延迟的情况下,数据信号电压被精确地施加到所有液晶单元上,因此在液晶面板上显示的图像不会失真。

    Digitizer
    9.
    发明授权
    Digitizer 有权
    数字化仪

    公开(公告)号:US06670949B1

    公开(公告)日:2003-12-30

    申请号:US09619538

    申请日:2000-07-19

    IPC分类号: G09G500

    CPC分类号: G06F3/045

    摘要: An apparatus for locating a point physically touched and producing an electrical signal corresponding to the location includes an insulating substrate; a resistor touch pattern supported on the insulating substrate; and a protective insulating plate arranged over the resistive touch pattern. The resistive touch pattern has a plurality of strip resistors parallel to a center line; a plurality of linear resistors connected to the strip resistors, the resistance of the linear resistors decreasing with distance from the center line; first and third terminals positioned on an intermediate point of alternate edges of the touch pattern; and second and fourth terminals, positioned on an intermediate point of other alternate edges of the touch pattern. The resistive value of the linear resistors selected for a corresponding strip resistor so as to produce equal potential at a corresponding selected point on all said strip resistors.

    摘要翻译: 用于定位物理触摸并产生对应于该位置的电信号的设备包括绝缘基板; 支撑在绝缘基板上的电阻器触摸图案; 以及布置在电阻式触摸图案上的保护绝缘板。 电阻式触摸图案具有平行于中心线的多个条形电阻; 连接到带状电阻器的多个线性电阻器,线性电阻器的电阻随着距离中心线的距离而减小; 第一和第三端子位于触摸图案的交替边缘的中间点上; 以及位于触摸图案的其他交替边缘的中间点上的第二和第四端子。 对于相应的带状电阻器选择的线性电阻器的电阻值,以便在所有所述条形电阻器上的相应选择点处产生相等的电位。

    Liquid crystal display device having a digitizer
    10.
    发明授权
    Liquid crystal display device having a digitizer 有权
    具有数字化仪的液晶显示装置

    公开(公告)号:US06661399B1

    公开(公告)日:2003-12-09

    申请号:US09598606

    申请日:2000-06-21

    IPC分类号: G09G336

    摘要: A liquid crystal display (LCD) device having a digitizer. A liquid crystal panel is supported by a lower frame having a side wall portion. A digitizer is located on the liquid crystal panel. An upper frame having a front surface with an opening region and a side wall portion is located over the digitizer such that the tipper frame pressurizes a peripheral portion of the digitizer. The opening region is formed at a location corresponding to the display region of the liquid crystal panel. The upper and lower frames mate to hold the liquid crystal panel and the digitizer in place. The upper frame is beneficially metallic to provide electrical shielding of conductors on the digitizer. Common electrical circuits are shared by the digitizer and the liquid crystal panel.

    摘要翻译: 一种具有数字转换器的液晶显示器(LCD)装置。 液晶面板由具有侧壁部分的下框架支撑。 数字转换器位于液晶面板上。 具有开口区域和侧壁部分的前表面的上框架位于数字化仪上方,使得自卸车架对数字化仪的周边部分加压。 开口区域形成在与液晶面板的显示区域对应的位置。 上下框架配合以将液晶面板和数字化仪保持在适当位置。 上框架是有益金属的,以提供数字化仪上导体的电屏蔽。 普通电路由数字化仪和液晶面板共用。