AMOLED PIXEL UNIT AND DRIVING METHOD THEREFOR, AND AMOLED DISPLAY APPARATUS

摘要

An AMOLED pixel unit (20) and a driving method therefor, and an AMOLED display apparatus comprising the AMOLED pixel unit (20). The AMOLED pixel unit (20) comprises a pixel circuit (22) and an organic light-emitting diode (24) connected to the pixel circuit (22). The pixel circuit (22) comprises a capacitor (Cs). One terminal of the capacitor (Cs) is connected to an initialization unit, a data writing unit, and a light-emitting control unit, and the other terminal of the capacitor (Cs) is connected to a first scanning control line (Sn1). The initialization unit is connected to a second scanning control line (Sn2). The data writing unit is connected to a third scanning control line (Sn3) and a data line (Dm). The light-emitting control unit is connected to a fourth scanning control line (Sn4). The AMOLED pixel unit (20) effectively avoids the influence of a leakage current or the difference of threshold voltages on the capacitor (Cs), so that the brightness of the AMOLED display apparatus is uniform.