Control method and control circuit of optical fingerprint sensor

The invention discloses a control method and a control circuit for an optical fingerprint sensor and a touch controller, the optical fingerprint sensor comprises a plurality of pixels, each pixel is provided with a first control signal line and a second control signal line, and each pixel is also coupled to a first voltage source line, a second voltage source line and a sensing line. The control method comprises the following step that when the touch controller is in a touch operation period, at least one of the first control signal line, the second control signal line, the first voltage source line, the second voltage source line and the sensing line applies an anti-load driving signal. 本发明公开了一种用于一光学式指纹传感器与一触控控制器的控制方法及其控制电路，该光学式指纹传感器包括多个像素，其中每一像素具有一第一控制信号线及一第二控制信号线，且每一像素还耦接于一第一电压源线、一第二电压源线及一感测线。该控制方法包括以下步骤：当该触控控制器处于一触控操作期间时，该第一控制信号线、该第二控制信号线、该第一电压源线、该第二电压源线、该感测线以上当中至少一者施加一抗负载驱动信号。