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    DYNAMIC SWITCHING OF POWER MODES FOR TOUCH SCREENS USING FORCE TOUCH
    1.
    发明申请
    DYNAMIC SWITCHING OF POWER MODES FOR TOUCH SCREENS USING FORCE TOUCH 审中-公开
    用力触摸触摸屏功率模式的动态切换

    公开(公告)号：US20150234446A1

    公开(公告)日：2015-08-20

    申请号：US14624281

    申请日：2015-02-17

    申请人： Arokia Nathan ,  Jackson Chi-Sun Lai ,  Suk-Bae Cha ,  Corbin Church

    发明人： Arokia Nathan ,  Jackson Chi-Sun Lai ,  Suk-Bae Cha ,  Corbin Church

    IPC分类号： G06F1/32 ,  G06F3/044 ,  G06F3/041

    CPC分类号： G06F1/3262 ,  G06F3/0414 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04105

    摘要： Switching of power modes for touch screens is disclosed. In example embodiments a touch detect mode may be activated for touchscreen operation. The touchscreen may be a projected capacitance screen that includes force sensing based on piezo electric sensors. The touch detect mode may be a low power mode in which at least one channel, but fewer than all channels of the touch screen are monitored. When is determined that a touch event has occurred a switch to a scan mode for touchscreen operation may be performed. Scan mode may be a higher power mode in which all channels of the touch screen are scanned at least for position sensing. The touch detect mode monitoring may be implemented by monitoring the total charge on the at least one channel and providing a voltage signal. When the voltage signal meets predetermined criteria an indication of a touch event may be generated.

    摘要翻译： 公开了触摸屏功率模式的切换。 在示例实施例中，可以激活触摸检测模式用于触摸屏操作。 触摸屏可以是投影电容屏幕，其包括基于压电传感器的力感测。 触摸检测模式可以是低功率模式，其中监视至少一个通道，但是少于触摸屏的所有通道。 当确定触摸事件已经发生时，可以执行切换到用于触摸屏操作的扫描模式。 扫描模式可以是更高的功率模式，其中至少扫描触摸屏的所有通道以进行位置感测。 可以通过监视至少一个通道上的总电荷并提供电压信号来实现触摸检测模式监视。 当电压信号满足预定标准时，可以产生触摸事件的指示。

    SYSTEM AND METHOD FOR FAST COMPENSATION PROGRAMMING OF PIXELS IN A DISPLAY
    3.
    发明申请
    SYSTEM AND METHOD FOR FAST COMPENSATION PROGRAMMING OF PIXELS IN A DISPLAY 有权
    用于显示器中像素快速补偿编程的系统和方法

    公开(公告)号：US20130099692A1

    公开(公告)日：2013-04-25

    申请号：US13481789

    申请日：2012-05-26

    申请人： Gholamreza Chaji ,  Jackson Chi Sun Lai ,  Yaser Azizi ,  Maran Ran Ma ,  Arokia Nathan

    发明人： Gholamreza Chaji ,  Jackson Chi Sun Lai ,  Yaser Azizi ,  Maran Ran Ma ,  Arokia Nathan

    IPC分类号： H05B37/02

    CPC分类号： G09G3/3233 ,  G09G3/3283 ,  G09G3/3291 ,  G09G2300/0465 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2310/0259 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2310/066 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2330/021 ,  G09G2330/023 ,  H05B37/02

    摘要： Circuits for programming a circuit with decreased programming time are provided. Such circuits include a storage device such as a capacitor for storing display information and for ensuring a driving device such as a driving transistor drives a light emitting device according to the display information. To increase programming time, the pixel circuits may be pre-charged or a biasing current may be applied to charge and/or discharge a data line and/or the driving device. Aspects of the present disclosure allow for the biasing current to drain partially through the storage device to allow the portion of the biasing current applied to the driving device to remain small while the data line discharges. Furthermore, the present disclosure provides display architectures and operation schemes for display arranged in segments each including a plurality of pixel circuits.0

    摘要翻译： 提供了用于编程具有减少的编程时间的电路的电路。 这种电路包括诸如用于存储显示信息的电容器的存储装置，并且用于确保诸如驱动晶体管的驱动装置根据显示信息驱动发光装置。 为了增加编程时间，可以对像素电路进行预充电，或者可以施加偏置电流来对数据线和/或驱动装置进行充电和/或放电。 本公开的方面允许偏置电流部分地通过存储装置排出，以允许施加到驱动装置的偏置电流的一部分在数据线放电时保持较小。 此外，本公开提供了显示器的显示架构和操作方案，其布置成包括多个像素电路的段。 0

    Pixel driver circuit with load-balance in current mirror circuit
    9.
    发明授权
    Pixel driver circuit with load-balance in current mirror circuit 有权
    像素驱动电路，在电流镜电路中具有负载平衡

    公开(公告)号：US08502751B2

    公开(公告)日：2013-08-06

    申请号：US10554795

    申请日：2004-09-23

    申请人： Arokia Nathan ,  Kapil V. Sakariya ,  Peyman Servati ,  Shahin Jafarabadiashtiani

    发明人： Arokia Nathan ,  Kapil V. Sakariya ,  Peyman Servati ,  Shahin Jafarabadiashtiani

    IPC分类号： G09G3/30

    CPC分类号： G09G3/3241 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/0417 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/0646 ,  H05B33/0896 ,  H05B37/0209

    摘要： A pixel circuit for use in a display comprising a plurality of pixels is provided. The load-balanced current mirror pixel circuit can compensate for device degradation and/or mismatch, and changing environmental factors like temperature and mechanical strain. The pixel circuit comprises a pixel drive circuit comprising, switching circuitry, a current mirror having a reference transistor and a drive transistor, the reference transistor and the drive transistor each having a first and second node and a gate, the gate of the reference transistor being connected to the gate of the drive transistor; and a capacitor connected between the gate of the reference transistor and a ground potential, and a load connected between the current mirror and a ground potential, the load having a first load element and a second load element, the first load element being connected to the first node of the reference transistor and the second load element being connected to the first node of the drive transistor.

    摘要翻译： 提供了用于包括多个像素的显示器中的像素电路。 负载平衡电流镜像素电路可以补偿器件劣化和/或失配，并改变环境因素，如温度和机械应变。 像素电路包括像素驱动电路，其包括开关电路，具有参考晶体管和驱动晶体管的电流镜，所述参考晶体管和驱动晶体管各自具有第一和第二节点和栅极，所述参考晶体管的栅极为 连接到驱动晶体管的栅极; 连接在参考晶体管的栅极和接地电位之间的电容器以及连接在电流反射镜和接地电位之间的负载，负载具有第一负载元件和第二负载元件，第一负载元件连接到 参考晶体管的第一节点和第二负载元件连接到驱动晶体管的第一节点。