Control device for a touch panel
    1.
    发明授权
    Control device for a touch panel 有权
    触摸屏控制装置

    公开(公告)号:US09063606B2

    公开(公告)日:2015-06-23

    申请号:US13338493

    申请日:2011-12-28

    IPC分类号: G06F3/041 G06F3/044

    摘要: The present invention discloses a control device for a touch panel that comprises a plurality of X-directional sensing lines and Y-directional sensing lines. The X-directional sensing lines and Y-directional sensing lines are arranged in an interlaced manner. The control device comprises a clock generation circuit, a selection module, a driving signal generation circuit, a differential detection module, and a digital-to-analog conversion module. The selection module selects a first sensing line and a second sensing line from the X-directional sensing lines or Y-directional sensing lines. The driving signal generation circuit generates first and second driving signals to the first and second sensing lines, respectively. The digital to analog conversion module selectively outputs a first voltage to the first sensing line or outputs a second voltage to the second sensing line. The operation frequency of the touch panel can be increased using the control device of the present invention.

    摘要翻译: 本发明公开了一种用于触摸面板的控制装置,其包括多个X方向感测线和Y方向感测线。 X方向感测线和Y方向感测线以隔行方式布置。 控制装置包括时钟发生电路,选择模块,驱动信号发生电路,差分检测模块和数模转换模块。 选择模块从X方向感测线路或Y方向感测线路中选择第一感测线路和第二感测线路。 驱动信号产生电路分别产生第一和第二驱动信号到第一和第二感测线。 数模转换模块有选择地将第一电压输出到第一感测线,或者向第二感测线输出第二电压。 可以使用本发明的控制装置来增加触摸面板的操作频率。

    Touch input device and touch sensor circuit
    2.
    发明授权
    Touch input device and touch sensor circuit 有权
    触摸输入设备和触摸传感器电路

    公开(公告)号:US08736572B2

    公开(公告)日:2014-05-27

    申请号:US12817274

    申请日:2010-06-17

    IPC分类号: G06F3/045

    CPC分类号: G06F3/044 G06F3/0416

    摘要: The invention discloses a touch input device and a touch sensor circuit. The touch input device includes a touch panel, a selection module and a differential detection module. The touch panel includes a plurality of capacitive nodes thereon. The selection module is electrically connected with the capacitive nodes of the touch panel. The selection module selects a first capacitive node and a second capacitive node from the capacitive nodes. The second capacitive node is close to the first capacitive node. The differential detection module, electrically connected to the selection module, is used for detecting a capacitance difference between the first capacitive node and the second capacitive node. According to the capacitance difference, the differential detection module generates a touch detection signal.

    摘要翻译: 本发明公开了一种触摸输入装置和触摸传感器电路。 触摸输入装置包括触摸面板,选择模块和差分检测模块。 触摸面板在其上包括多个电容性节点。 选择模块与触摸面板的电容性节点电连接。 选择模块从电容性节点选择第一电容性节点和第二电容性节点。 第二电容节点靠近第一电容节点。 电连接到选择模块的差分检测模块用于检测第一电容性节点和第二电容性节点之间的电容差。 根据电容差,差分检测模块生成触摸检测信号。

    LCD driving apparatus and method
    3.
    发明授权
    LCD driving apparatus and method 有权
    LCD驱动装置及方法

    公开(公告)号:US08692824B2

    公开(公告)日:2014-04-08

    申请号:US12261559

    申请日:2008-10-30

    IPC分类号: G06F3/038 G09G5/00 G09G3/36

    CPC分类号: G09G3/3696 G09G2320/0233

    摘要: The invention discloses a driving apparatus for driving an LCD. The driving apparatus comprises a voltage control unit, an operating unit, a resistance unit, and a voltage selection unit. The operating unit comprises two sets of buffers formed by a plurality of operational amplifiers in negative feedback circuit. The two sets of buffers selectively receive positive polarity voltages and negative polarity voltages respectively. The voltage selection unit is provided with the positive polarity voltages and negative polarity voltages through the operating unit and the resistance unit. The voltage selection unit selectively provides the pixels of the LCD with the positive polarity voltage and the negative polarity voltage. Accordingly, each of the pixels is provided either with the positive polarity voltages or the negative polarity voltages by one of the two sets of buffers.

    摘要翻译: 本发明公开了一种用于驱动LCD的驱动装置。 驱动装置包括电压控制单元,操作单元,电阻单元和电压选择单元。 操作单元包括由负反馈电路中的多个运算放大器形成的两组缓冲器。 两组缓冲器分别选择性地接收正极性电压和负极性电压。 电压选择单元通过操作单元和电阻单元提供正极性电压和负极性电压。 电压选择单元选择性地为LCD的像素提供正极性电压和负极性电压。 因此,通过两组缓冲器之一,每个像素都由正极性电压或负极性电压提供。

    Apparatus and method for generating chopper-stabilized signals
    4.
    发明授权
    Apparatus and method for generating chopper-stabilized signals 有权
    用于产生斩波稳定信号的装置和方法

    公开(公告)号:US08520034B2

    公开(公告)日:2013-08-27

    申请号:US12944284

    申请日:2010-11-11

    申请人: Yong-Nien Rao

    发明人: Yong-Nien Rao

    IPC分类号: G09G5/10

    CPC分类号: G09G3/3688 G09G3/3614

    摘要: A method for generating chopper-stabilized signals includes the following steps. First, a voltage polarity control signal is received. Next, the voltage polarity control signal is sampled to obtain a sampling signal, and a voltage transformation manner of the voltage polarity inversion of the voltage polarity control signal is judged according to the sampling signal. Then, a frame transformation signal template is obtained according to the voltage transformation manner of the voltage polarity inversion of the voltage polarity control signal and the sampling signal. Next, the frame transformation signal template is compared with the sampling signal and a frame transformation signal is generated. Then, a first chopper-stabilized signal is outputted according to the frame transformation signal and the voltage polarity control signal.

    摘要翻译: 一种用于产生斩波稳定信号的方法包括以下步骤。 首先,接收电压极性控制信号。 接下来,对电压极性控制信号进行采样以获得采样信号,并且根据采样信号判断电压极性控制信号的电压极性反转的电压变换方式。 然后,根据电压极性控制信号和采样信号的电压极性反转的电压变换方式,获得帧变换信号模板。 接下来,将帧变换信号模板与采样信号进行比较,生成帧变换信号。 然后,根据帧变换信号和电压极性控制信号输出第一斩波稳定信号。

    CONTROL DEVICE FOR TOUCH PANEL AND SIGNAL PROCESSING METHOD THEREOF
    5.
    发明申请
    CONTROL DEVICE FOR TOUCH PANEL AND SIGNAL PROCESSING METHOD THEREOF 审中-公开
    触控面板的控制装置及其信号处理方法

    公开(公告)号:US20120176326A1

    公开(公告)日:2012-07-12

    申请号:US13338552

    申请日:2011-12-28

    IPC分类号: G06F3/041

    CPC分类号: G06F3/044 G06F3/0418

    摘要: The present invention discloses a control device for a touch panel. The touch panel comprises a plurality of X-directional sensing lines and a plurality of Y-directional sensing lines arranged in a staggered manner. The control device comprises a clock generation circuit, a selection module, an analog to digital conversion circuit, and a control unit. The selection module selects sensing lines to be measured from the X-directional sensing lines and Y-directional sensing lines. The control unit controls the operation mode of the analog to digital conversion circuit. The analog to digital conversion circuit outputs an n-bit digital signal when it operates in a normal mode, and outputs an m-bit digital signal when it operates in a detecting mode, wherein n>m. According to the control device of the present invention, valid data is output in the presence of noise.

    摘要翻译: 本发明公开了一种用于触摸面板的控制装置。 触摸面板包括以交错方式布置的多个X方向感测线和多条Y方向感测线。 控制装置包括时钟产生电路,选择模块,模数转换电路和控制单元。 选择模块从X方向感测线路和Y方向感测线路中选择要测量的感测线路。 控制单元控制模数转换电路的工作模式。 模拟数字转换电路在正常模式下工作时输出n位数字信号,当其工作在检测模式时输出m位数字信号,其中n> m。 根据本发明的控制装置,在存在噪声的情况下输出有效数据。

    LCD DRIVING APPARATUS AND METHOD
    6.
    发明申请
    LCD DRIVING APPARATUS AND METHOD 有权
    LCD驱动装置和方法

    公开(公告)号:US20090141016A1

    公开(公告)日:2009-06-04

    申请号:US12261559

    申请日:2008-10-30

    IPC分类号: G06F3/038

    CPC分类号: G09G3/3696 G09G2320/0233

    摘要: The invention discloses a driving apparatus for driving an LCD. The driving apparatus comprises a voltage control unit, an operating unit, a resistance unit, and a voltage selection unit. The operating unit comprises two sets of buffers formed by a plurality of operational amplifiers in negative feedback circuit. The two sets of buffers selectively receive positive polarity voltages and negative polarity voltages respectively. The voltage selection unit is provided with the positive polarity voltages and negative polarity voltages through the operating unit and the resistance unit. The voltage selection unit selectively provides the pixels of the LCD with the positive polarity voltage and the negative polarity voltage. Accordingly, each of the pixels is provided either with the positive polarity voltages or the negative polarity voltages by one of the two sets of buffers.

    摘要翻译: 本发明公开了一种用于驱动LCD的驱动装置。 驱动装置包括电压控制单元,操作单元,电阻单元和电压选择单元。 操作单元包括由负反馈电路中的多个运算放大器形成的两组缓冲器。 两组缓冲器分别选择性地接收正极性电压和负极性电压。 电压选择单元通过操作单元和电阻单元提供正极性电压和负极性电压。 电压选择单元选择性地为LCD的像素提供正极性电压和负极性电压。 因此,通过两组缓冲器之一,每个像素都由正极性电压或负极性电压提供。

    Power-on screen pattern correcting apparatus and source driver using the same
    7.
    发明申请
    Power-on screen pattern correcting apparatus and source driver using the same 有权
    上电屏幕图案校正装置和使用其的源驱动器

    公开(公告)号:US20080180425A1

    公开(公告)日:2008-07-31

    申请号:US12010354

    申请日:2008-01-24

    IPC分类号: G09G5/00

    摘要: A power-on screen pattern correcting apparatus is for correcting start output data of output terminals of a source driver such that a power-on screen pattern of a display is substantially uniform. The correcting apparatus comprises a flip-flop, a first logic unit and a second logic unit. The flip-flop controls a level of an inner signal to be substantially equal to a low signal level in response to a low level of a power start signal. The first logic unit enables a first signal in response to the low level of the inner signal or a low level of a high-impedance control signal. The second logic unit enables a second signal such that the output terminals are coupled to a charge sharing line and the power-on screen pattern is uniform in response to the low level of the inner signal or a low level of a charge-sharing control signal.

    摘要翻译: 上电屏幕图案校正装置用于校正源驱动器的输出端的开始输出数据,使得显示器的开机屏幕图案基本上均匀。 校正装置包括触发器,第一逻辑单元和第二逻辑单元。 触发器响应于低电平的功率启动信号而控制内部信号的电平基本上等于低信号电平。 第一逻辑单元响应于内部信号的低电平或高电平的高阻抗控制信号而启用第一信号。 第二逻辑单元启用第二信号,使得输出端耦合到电荷共享线,并且电源屏幕图案响应于内部信号的低电平或电荷共享控制信号的低电平而均匀 。

    CONTROL DEVICE FOR A TOUCH PANEL
    8.
    发明申请
    CONTROL DEVICE FOR A TOUCH PANEL 有权
    触控面板的控制装置

    公开(公告)号:US20120182255A1

    公开(公告)日:2012-07-19

    申请号:US13338493

    申请日:2011-12-28

    IPC分类号: G06F3/044

    摘要: The present invention discloses a control device for a touch panel that comprises a plurality of X-directional sensing lines and Y-directional sensing lines. The X-directional sensing lines and Y-directional sensing lines are arranged in an interlaced manner. The control device comprises a clock generation circuit, a selection module, a driving signal generation circuit, a differential detection module, and a digital-to-analog conversion module. The selection module selects a first sensing line and a second sensing line from the X-directional sensing lines or Y-directional sensing lines. The driving signal generation circuit generates first and second driving signals to the first and second sensing lines, respectively. The digital to analog conversion module selectively outputs a first voltage to the first sensing line or outputs a second voltage to the second sensing line. The operation frequency of the touch panel can be increased using the control device of the present invention.

    摘要翻译: 本发明公开了一种用于触摸面板的控制装置,其包括多个X方向感测线和Y方向感测线。 X方向感测线和Y方向感测线以隔行方式布置。 控制装置包括时钟发生电路,选择模块,驱动信号发生电路,差分检测模块和数模转换模块。 选择模块从X方向感测线路或Y方向感测线路中选择第一感测线路和第二感测线路。 驱动信号产生电路分别产生第一和第二驱动信号到第一和第二感测线。 数模转换模块有选择地将第一电压输出到第一感测线,或者向第二感测线输出第二电压。 可以使用本发明的控制装置来增加触摸面板的操作频率。

    Capacitance Measurement Circuit and Method Therefor
    9.
    发明申请
    Capacitance Measurement Circuit and Method Therefor 有权
    电容测量电路及其方法

    公开(公告)号:US20110074446A1

    公开(公告)日:2011-03-31

    申请号:US12884886

    申请日:2010-09-17

    IPC分类号: G01R27/26

    摘要: A capacitance measurement circuit includes an operation amplifier; a reference capacitor having a first terminal coupled to a first input terminal of the operation amplifier and a second terminal selectively coupled to a first or second reference voltage; a sensor capacitor having a first terminal coupled to a second input terminal of the operation amplifier and a second terminal selectively coupled to the first or second reference voltage; an approximation unit having an output terminal and an input terminal coupled to an output terminal of the operation amplifier; a conversion unit having an output terminal and an input terminal coupled to the output terminal of the approximation unit; and a coupling capacitor having a first terminal coupled to the first or second input terminal of the operation amplifier and a second terminal coupled to the output terminal of the conversion unit.

    摘要翻译: 电容测量电路包括运算放大器; 参考电容器,其具有耦合到所述运算放大器的第一输入端子的第一端子和选择性地耦合到第一或第二参考电压的第二端子; 传感器电容器,其具有耦合到所述运算放大器的第二输入端子的第一端子和选择性地耦合到所述第一或第二参考电压的第二端子; 近似单元,具有输出端和耦合到运算放大器的输出端的输入端; 转换单元,具有输出端和耦合到近似单元的输出端的输入端; 以及耦合电容器,其具有耦合到所述运算放大器的第一或第二输入端的第一端子和耦合到所述转换单元的输出端子的第二端子。

    TFT-LCD capable of repairing discontinuous lines
    10.
    发明授权
    TFT-LCD capable of repairing discontinuous lines 失效
    TFT-LCD能够修复不连续的线路

    公开(公告)号:US07675495B2

    公开(公告)日:2010-03-09

    申请号:US11287392

    申请日:2005-11-28

    IPC分类号: G09G3/36

    摘要: A TFT-LCD capable of repairing discontinuous lines includes a repairing circuit, which includes a plurality of repairing OP amplifiers and a high-impedance detecting unit. The high-impedance detecting unit detects states of input terminals of the OP amplifiers. The high-impedance detecting unit enables a control signal to enable the OP amplifier when the input terminal is not at floating state. The high-impedance detecting unit disables the control signal to disable the OP amplifier when the input terminal is at floating state, so that no output competition between the OP amplifiers is generated.

    摘要翻译: 能够修复不连续线路的TFT-LCD包括修复电路,其包括多个修复的OP放大器和高阻抗检测单元。 高阻抗检测单元检测OP放大器的输入端的状态。 当输入端子不处于浮动状态时,高阻抗检测单元使控制信号能够使能OP放大器。 当输入端处于浮置状态时,高阻抗检测单元禁止控制信号禁止OP放大器,从而不产生OP放大器之间的输出竞争。