Drive circuit, display device, and driving method

    公开(公告)号:US07573472B2

    公开(公告)日:2009-08-11

    申请号:US11264162

    申请日:2005-11-02

    IPC分类号: G09G3/10

    摘要: The present invention discloses an invention about a drive waveform for driving an image display unit. In particular, the present invention discloses the structure of using as a drive waveform a drive waveform signal which is level controlled by a plural of discontinuous levels including a minimum level which is a level corresponding to luminance brightness gradation data which is not 0, at least one non-minimum level which is a level corresponding to larger luminance brightness gradation data, and an intermediate level between the above-described minimum level and the above-described non-minimum level, and is given pulse width control with discontinuous pulse width, and which has a portion, which is controlled with the above-described minimum level, in its trailing edge, and a portion, which is controlled with the above-described intermediate level just before the former portion, when it has the portion controlled by the above-described non-minimum level.

    Driving apparatus, driver circuit, and image display apparatus
    2.
    发明授权
    Driving apparatus, driver circuit, and image display apparatus 失效
    驱动装置,驱动电路和图像显示装置

    公开(公告)号:US07463254B2

    公开(公告)日:2008-12-09

    申请号:US11449703

    申请日:2006-06-09

    IPC分类号: G06F3/038

    摘要: The present invention can provide a driving apparatus capable of compensating an influence of a voltage drop at low costs in a simple manner, which includes: a column driver circuit that generates at least one of modulation signals different in start reference time in one horizontal scanning period and the modulation signals obtained by using pulse width modulation and voltage amplitude modulation in combination; and a correction circuit that corrects a voltage of the row selection signal so as to suppress a voltage variation of the row selection signal, which is caused due to at least a resistance of an output stage of the row driver circuit and a current caused to flow into the resistance.

    摘要翻译: 本发明可以提供能够以简单的方式以低成本补偿电压降的影响的驱动装置,其包括:列驱动器电路,其在一个水平扫描周期中产生开始基准时间不同的调制信号中的至少一个 并通过组合使用脉宽调制和电压幅度调制获得的调制信号; 以及校正电路,其校正行选择信号的电压,以便抑制由于行驱动器电路的输出级的至少电阻和导致流动的电流而引起的行选择信号的电压变化 进入抵抗。

    Scanning circuit and image display device

    公开(公告)号:US20060256101A1

    公开(公告)日:2006-11-16

    申请号:US11491120

    申请日:2006-07-24

    IPC分类号: G09G5/00

    摘要: A scanning circuit and an image display device in which the influence of losses in a signal path to scanning wiring and a scanning signal output circuit can be reduced. By considering matrix drive in which one row is driven at a time and two or more of the rows are not simultaneously driven, the 480 rows are divided into six modules and one feedback circuit is provided in correspondence with each module to perform feedback control of the output buffers corresponding to 80 rows. An output from a switch is amplified by an operational amplifier and is input as a compensation signal to all the output buffers by an output voltage compensation circuit. Compensation for a voltage drop is made by using the compensation signal for an increase in voltage such that the apparent voltage drop due to the output current is limited to a small value.

    Drive circuit, display device, and driving method

    公开(公告)号:US20060050030A1

    公开(公告)日:2006-03-09

    申请号:US11264162

    申请日:2005-11-02

    IPC分类号: G09G3/30

    摘要: The present invention discloses an invention about a drive waveform for driving an image display unit. In particular, the present invention discloses the structure of using as a drive waveform a drive waveform signal which is level controlled by a plural of discontinuous levels including a minimum level which is a level corresponding to luminance brightness gradation data which is not 0, at least one non-minimum level which is a level corresponding to larger luminance brightness gradation data, and an intermediate level between the above-described minimum level and the above-described non-minimum level, and is given pulse width control with discontinuous pulse width, and which has a portion, which is controlled with the above-described minimum level, in its trailing edge, and a portion, which is controlled with the above-described intermediate level just before the former portion, when it has the portion controlled by the above-described non-minimum level.

    Modulation circuit, driving circuit and output method
    6.
    发明申请
    Modulation circuit, driving circuit and output method 失效
    调制电路,驱动电路及输出方式

    公开(公告)号:US20060001500A1

    公开(公告)日:2006-01-05

    申请号:US11167206

    申请日:2005-06-28

    IPC分类号: H03K7/00

    摘要: A modulation circuit that outputs modulation signals, comprising: a memory circuit that stores waveform data that determines the time width of a portion of a modulation signal, the portion being adjusted to a predetermined amplitude value, the waveform data being stored in such a manner as to output a plurality of modulation signals; and a circuit that generates the modulation signals, based on the waveform data and input gradation data.

    摘要翻译: 一种输出调制信号的调制电路,包括:存储电路,其存储确定调制信号的一部分的时间宽度的波形数据,所述调制信号的一部分被调整到预定的振幅值,所述波形数据以如 输出多个调制信号; 以及基于波形数据和输入灰度数据生成调制信号的电路。

    Image display apparatus
    7.
    发明授权
    Image display apparatus 失效
    图像显示装置

    公开(公告)号:US06970162B2

    公开(公告)日:2005-11-29

    申请号:US10211521

    申请日:2002-08-05

    摘要: An image display apparatus having a plurality of image forming devices. In an output circuit provided between constant voltage supplies and wiring for driving each of the image forming devices, MOSFETs are successively turned on from the one having a higher ON resistance at the time of switching to make a stepwise transition between outputs from the constant voltage supplies, and have steady potential, thereby limiting undesirable variation in signal potential at the time of switching.

    摘要翻译: 一种具有多个图像形成装置的图像显示装置。 在用于驱动每个图像形成装置的恒定电压源和布线之间的输出电路中,MOSFET在切换时从具有较高导通电阻的MOSFET连续导通,以在来自恒定电压源的输出之间进行逐步转换 并且具有稳定的电位,从而限制切换时的信号电位的不期望的变化。

    Centrifugal separator
    8.
    发明申请
    Centrifugal separator 有权
    离心分离器

    公开(公告)号:US20050233884A1

    公开(公告)日:2005-10-20

    申请号:US11105358

    申请日:2005-04-14

    IPC分类号: B04B7/02 B04B7/06

    CPC分类号: B04B7/06 B04B7/02

    摘要: In a centrifugal separator, inside a housing opposed to a protector, a protruding member, which protrudes inside, is arranged at a position shifted from a shortest distance portion, the distance from the protector of which is the shortest, so that a spatial distance between the housing and the protector can be reduced.

    摘要翻译: 在离心式分离器中,在与保护器相对的壳体的内部,突出部件在内部突出设置在从最短距离部分偏移的位置,其距保护器的距离最短,使得距离保护器的距离最短 可以减小外壳和保护器。

    Display device with particular external connections
    9.
    发明授权
    Display device with particular external connections 失效
    具有特定外部连接的显示设备

    公开(公告)号:US6160605A

    公开(公告)日:2000-12-12

    申请号:US571546

    申请日:1995-12-13

    IPC分类号: G09G3/20 G09G3/36 G02F1/1345

    摘要: A display device is provided with a display element having first electrodes and second electrodes, first drive unit connected to the first electrodes and adapted to provide the first electrodes with a voltage, second drive unit connected to the second electrodes and adapted to provide the second electrodes with a voltage, and drive control unit adapted to control the first and second drive unit and to supply a first reference voltage.A reference potential wiring for providing the reference potential of the first drive unit and a reference potential wiring for providing the reference potential of the second drive unit are shortcircuited in the vicinity of the first and second drive unit.

    摘要翻译: 显示装置设置有具有第一电极和第二电极的显示元件,第一驱动单元连接到第一电极并且适于向第一电极提供连接到第二电极的电压,第二驱动单元,并适于提供第二电极 以及用于控制第一和第二驱动单元并提供第一参考电压的驱动控制单元。 用于提供第一驱动单元的参考电位的参考电位布线和用于提供第二驱动单元的参考电位的参考电位布线在第一和第二驱动单元附近被短路。

    Method of controlling an image display apparatus
    10.
    发明授权
    Method of controlling an image display apparatus 失效
    控制图像显示装置的方法

    公开(公告)号:US08259140B2

    公开(公告)日:2012-09-04

    申请号:US12412941

    申请日:2009-03-27

    申请人: Kazuhiko Murayama

    发明人: Kazuhiko Murayama

    IPC分类号: G06F3/038

    摘要: A method is provided to control an image display apparatus having a display panel in which a plurality of display devices are arranged in matrix with a plurality of column wires and a plurality of row wires. The method includes the steps of outputting a selection electric potential to a row wire to be driven, and generating a modulated pulse based on image data and outputting the modulated pulse to the column wires.

    摘要翻译: 提供了一种控制具有显示面板的图像显示装置的方法,其中多个显示装置以多个列线和多个行线矩阵排列。 该方法包括以下步骤:向待驱动的行线输出选择电位,并基于图像数据生成调制脉冲,并将调制脉冲输出到列线。