A pixel circuit, an organic electroluminescent display panels and a display device is configured to improve image brightness uniformity in the displaying region of the display device. The pixel circuit comprises a capacitor (CST), a light emitting device (D1), a driving control sub-module (1), a charging and resetting sub-module (2), and a light-emitting control sub-module (3). A first terminal of the capacitor (CST) serves as a first node (A), and a second terminal of the capacitor (CST) servers as a second node (B). A first terminal (x) of the light emitting device (D1) is connected to a fifth terminal (e′) of the light emitting control sub-module (3), and a second terminal (y) of the light emitting device is connected to a second reference signal terminal (Vref2). When the charging and resetting sub-module (2) is turned on, the data signal is written to the first node (A), and the first terminal and third terminal of the driving control sub-module (2) are shorted, which can reset the voltage of the second node (B) and charge the capacitor (CST). When the light emitting control sub-module (3) is turned on, the driving control sub-module (1) and the light emitting device (D1) are connected and the light emitting device (D1) is driven to emit light.