Electrophoretic display apparatus and image-updating method thereof

An image-updating method for an electrophoretic display apparatus, the electrophoretic display apparatus comprising a display panel and a source driver, the display panel comprising a plurality of pixels and a plurality of source lines, each of the pixels being electrically coupled to a corresponding one of the source lines, each of the pixels comprising a pixel electrode and a capacitor, the capacitor comprising a plurality of charged particles, the source driver being electrically coupled to the source lines, the source driver comprising a first data-latching circuit and a second data-latching circuit, the first data-latching circuit comprising a first transistor, a first capacitor and a first inverter, the first transistor having a first source/drain terminal, a second source/drain terminal and a gate terminal, the first source/drain terminal of the first transistor being configured for receiving image data, the gate terminal of the first transistor being configured for receiving a data shift-register output pulse, the first capacitor being electrically coupled between the second source/drain terminal of the first transistor and a reference voltage, the first inverter having an input terminal and an output terminal, the input terminal of the first inverter being electrically coupled to the second source/drain terminal of the first transistor, the second data-latching circuit comprising a second transistor, a second capacitor and a second inverter, the second transistor having a first source/drain terminal, a second source/drain terminal and a gate terminal, the first source/drain terminal of the second transistor being electrically coupled to the output terminal of the first inverter, the gate terminal of the second transistor being configured for receiving a latching-enable pulse, the second capacitor being electrically coupled between the second source/drain terminal of the second transistor and the reference voltage, the second inverter having an input terminal and an output terminal, the input terminal of the second inverter being electrically coupled to the second source/drain terminal of the second transistor, the output terminal of the second inverter being electrically coupled to one of the source lines, and the image-updating method comprising:

• providing an alternating current (AC) common voltage so that the particles being driven by the electrical field caused by the common electrode and the pixel electrode;
• making the AC common voltage present a first potential, and making a voltage of the output terminal of the second inverter present a second potential, so as to erase a previous image;
• and
• making the AC common voltage present the second potential, and making the voltage of the output terminal of the second inverter drive a corresponding one of the pixels in three stages, wherein the voltage of the output terminal of the second inverter presents the first potential in a first stage, the voltage of the output terminal of the second inverter presents the second potential in a second stage, and the voltage of the output terminal of the second inverter presents the first potential in a third stage.