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    • 14. 发明申请
    • Touch sensitive active matrix display and method for touch sensing
    • 触摸感应有源矩阵显示和触摸感应方法
    • US20060012575A1
    • 2006-01-19
    • US10538278
    • 2003-11-27
    • Alan KnappMark Johnson
    • Alan KnappMark Johnson
    • G09G5/00
    • G06F3/0412G02F1/13338G06F3/044
    • A touch sensitive active martix display device has an array of capacitive display element pixels (16), each associated with a pixel storage capacitor (20) and a pixel transistor. One or more common electrode contacts (18a) are provided and connected to a terminal of a plurality of the display elements (16). Each common electrode contact is individually connectable to a charge measurement device (50) for measuring a flow of charge to the common electrode contact. The charge flowing through the capacitive display element can thus be measured while the pixel transistor is switched off. This flow of charge represents the transfer of charge between the pixel storage capacitor (20) and the display element (16) and results from a change in capacitance, and is therefore indicative of a touch input.
    • 一种触摸敏感的活性马赛克显示装置具有电容显示元件像素阵列(16),每个像素与像素存储电容器(20)和像素晶体管相关联。 提供一个或多个公共电极触点(18a)并连接到多个显示元件(16)的端子。 每个公共电极接触件可单独地连接到用于测量到公共电极接触件的电荷流的电荷测量装置(50)。 因此,可以在像素晶体管截止时测量流过电容显示元件的电荷。 该电荷流动表示像素存储电容器(20)和显示元件(16)之间的电荷转移,并且由电容的变化导致,因此表示触摸输入。