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发明授权
US08754875B2 Light sensing circuit, touch panel including the same, and method of driving the light sensing circuit 有权
光感测电路，包括其的触摸面板以及驱动光感测电路的方法

Light sensing circuit, touch panel including the same, and method of driving the light sensing circuit
摘要：
A light sensing circuit of a touch panel includes a photodiode including an anode and a cathode; a driving transistor including a gate electrode connected to the cathode of the photodiode, a first electrode to receive a first ground voltage, and a second electrode; a first switching transistor including a first electrode connected to the second electrode of the driving transistor, a second electrode to output a data signal, and a gate electrode to receive a scan signal; a first capacitor including a first terminal connected to the cathode of the photodiode, and a second terminal; and a voltage compensating unit to apply a compensation voltage to the second terminal of the first capacitor.
摘要（中）：

触摸面板的感光电路包括：包括阳极和阴极的光电二极管; 驱动晶体管，其包括连接到所述光电二极管的阴极的栅电极，接收第一接地电压的第一电极和第二电极; 第一开关晶体管，包括连接到驱动晶体管的第二电极的第一电极，输出数据信号的第二电极和用于接收扫描信号的栅电极; 第一电容器，包括连接到所述光电二极管的阴极的第一端子和第二端子; 以及电压补偿单元，用于向第一电容器的第二端施加补偿电压。

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