Liquid crystal display device
    3.
    发明授权
    Liquid crystal display device 失效
    液晶显示装置

    公开(公告)号:US06621477B1

    公开(公告)日:2003-09-16

    申请号:US09708559

    申请日:2000-11-09

    IPC分类号: G09G336

    摘要: In a color liquid crystal display device, two capacitors are connected in parallel between a pixel signal line and an electrode of a liquid cell, or one of the capacitors is connected therebetween, or none of the capacitors are connected therebetween, in order to selectively set a potential of the electrode of the liquid crystal cell in any of four steps. Therefore, gradation display in four steps can be achieved without a digital-to-analog conversion circuit, so that the cost of the device can be reduced.

    摘要翻译: 在彩色液晶显示装置中,两个电容器并联连接在像素信号线和液晶盒的电极之间,或者其中一个电容器连接在它们之间,或者没有一个电容器连接在它们之间,以便选择性地设置 液晶单元的电极的电位在四个步骤中的任一个中。 因此,无需数字 - 模拟转换电路即可实现四级梯度显示,从而可以降低器件的成本。

    Display device
    4.
    发明申请
    Display device 有权
    显示设备

    公开(公告)号:US20050174306A1

    公开(公告)日:2005-08-11

    申请号:US10513755

    申请日:2003-06-17

    IPC分类号: G09G3/32 G09G3/30

    摘要: Signal lines for supplying signal currents to respective pixel circuits having light emitting elements are arranged. A signal line driving circuit generates, on a signal line, a signal current corresponding to the image data, by switching bit weighting currents output from bit weighting current source circuits provided for respective bits of the image data, using a switch circuit turned on/off dependent on the corresponding bit. Each current source circuit has a function of correcting the level of the bit weighting current output from itself, based on a reference current of the bit weighting current supplied from a reference current line. Therefore, even when the characteristics of TFTs forming respective current source circuits vary widely, variation in signal currents among the signal lines can be suppressed, and unevenness in emission luminance can be suppressed.

    摘要翻译: 布置用于向具有发光元件的各个像素电路提供信号电流的信号线。 信号线驱动电路通过使用开关电路接通/断开来切换信号线上产生与图像数据相对应的信号电流,通过切换由针对图像数据的各个比特设置的比特加权电流源电路输出的比特加权电流 取决于相应的位。 每个电流源电路具有基于从参考电流线提供的比特加权电流的参考电流来校正其自身输出的比特加权电流的电平的功能。 因此,即使形成各个电流源电路的TFT的特性变化很大,也可以抑制信号线之间的信号电流的变化,能够抑制发光亮度的不均匀。

    Display device
    5.
    发明授权
    Display device 有权
    显示设备

    公开(公告)号:US07570244B2

    公开(公告)日:2009-08-04

    申请号:US10513755

    申请日:2003-06-17

    IPC分类号: G09G3/36

    摘要: Signal lines for supplying signal currents to respective pixel circuits having light emitting elements are arranged. A signal line driving circuit generates, on a signal line, a signal current corresponding to the image data, by switching bit weighting currents output from bit weighting current source circuits provided for respective bits of the image data, using a switch circuit turned on/off dependent on the corresponding bit. Each current source circuit has a function of correcting the level of the bit weighting current output from itself, based on a reference current of the bit weighting current supplied from a reference current line. Therefore, even when the characteristics of TFTs forming respective current source circuits vary widely, variation in signal currents among the signal lines can be suppressed, and unevenness in emission luminance can be suppressed.

    摘要翻译: 布置用于向具有发光元件的各个像素电路提供信号电流的信号线。 信号线驱动电路通过使用开关电路接通/断开来切换信号线上产生与图像数据相对应的信号电流,通过切换由针对图像数据的各个比特设置的比特加权电流源电路输出的比特加权电流 取决于相应的位。 每个电流源电路具有基于从参考电流线提供的比特加权电流的参考电流来校正其自身输出的比特加权电流的电平的功能。 因此,即使形成各个电流源电路的TFT的特性变化很大,也可以抑制信号线之间的信号电流的变化,能够抑制发光亮度的不均匀。

    Display device
    9.
    发明授权
    Display device 失效
    显示设备

    公开(公告)号:US07006067B2

    公开(公告)日:2006-02-28

    申请号:US10119722

    申请日:2002-04-11

    IPC分类号: G09G3/36

    摘要: In a liquid crystal display, complementary signal lines for data lines are provided, corresponding to columns of pixels arranged in a display pixel matrix. In a refresh mode, data of these pixels are read out on the complementary signal lines, and differentially amplified by a sense amplifier. The data differentially amplified is written in the original pixel. A refresh operation is carried out internally and there is no need for externally providing a refresh memory for storing data used in refreshing the pixel data. Thus, it is possible to reduce the current consumption for holding data of pixels.

    摘要翻译: 在液晶显示器中,提供用于数据线的互补信号线,对应于排列在显示像素矩阵中的像素列。 在刷新模式下,这些像素的数据在互补信号线上被读出,由读出放大器进行差分放大。 差分放大的数据被写入原始像素。 在内部进行刷新操作,不需要外部提供用于存储用于刷新像素数据的数据的刷新存储器。 因此,可以减少保持像素数据的电流消耗。

    TOUCH PANEL AND DISPLAY DEVICE COMPRISING THE SAME
    10.
    发明申请
    TOUCH PANEL AND DISPLAY DEVICE COMPRISING THE SAME 失效
    触控面板和包括它的显示装置

    公开(公告)号:US20100253647A1

    公开(公告)日:2010-10-07

    申请号:US12740124

    申请日:2008-11-10

    IPC分类号: G06F3/045

    CPC分类号: G06F3/044 G06F3/0416

    摘要: A touch panel capable of calculating touch position coordinates of an indicator with high accuracy in a desired detection time even if a large number of detection wire groups are provided. An oscillator circuit selects one of detection wires selected by a circuit or the like according to a command from a detection control circuit and oscillates. A circuit counts an output signal from the oscillator circuit up to a first count value. A circuit measures a period of the count. A circuit determines that there is a touch when it detects the detection wire of which the measured period is equal to or higher than a threshold value and sends the detection wire giving a maximum value equal to or higher than the threshold value to a circuit as a touch detection wire. The circuit causes the circuit or the like to select the touch detection wire and the detection wires adjacent thereto on both sides, the circuit counts up until the count value becomes a second count value larger than the first count value, and the circuit measures the count period. The circuit performs interpolation on the basis of the count value obtained by subtracting a background capacitance value from a measured value obtained by the circuit, to thereby determine the touch coordinates.

    摘要翻译: 即使提供了大量检测线组,能够在期望的检测时间内高精度地计算指示器的触摸位置坐标的触摸面板。 振荡电路根据来自检测控制电路的指令,选择由电路等选择的检测线之一并振荡。 电路将来自振荡器电路的输出信号计数到第一计数值。 电路测量一段时间。 电路确定当检测到测量周期等于或高于阈值的检测线时有触摸,并将给出等于或高于阈值的最大值的检测线发送到电路作为 触摸检测线。 电路使电路等在两侧选择触摸检测线及与其相邻的检测线,电路向上计数,直到计数值变为比第一计数值大的第二计数值,并且电路测量计数 期。 电路根据通过从电路获得的测量值减去背景电容值而得到的计数值进行内插,从而确定触摸坐标。