PIXEL CIRCUIT AND DRIVE METHOD, AND ORGANIC ELECTROLUMINESCENT DISPLAY PANEL AND DISPLAY DEVICE

摘要

Provided are a pixel circuit and method for driving same, and an organic electroluminescent display panel and display device, comprising: a light-emitting device (OLED), a drive control module (DTFT), a charging control module (C, T1, T2), a compensation control module (T3, T4), and a light emission control module (T5); under the control of a first scan signal terminal (Scan1) and a light emission signal terminal (EM), the light emission control module (T5) controls the charging control module (C, T1, T2) to charge the drive control module (DTFT); under the control of a second scan signal terminal (Scan2), a data signal sent by the data signal terminal (Data) is transmitted by the compensation control module (T3, T4) by means of the charging control module (C, T1, T2) to a first input terminal (1a) of the drive control module (DTFT); under the control of the second scan signal terminal (Scan2) and the light emission signal terminal (EM), the light emission control module (T5) and the compensation control module (T3, T4) collectively control the drive control module (DTFT) to drive the light-emitting device (OLED) to emit light. Since the voltage driving the light-emitting device (OLED) to emit light is related only to the voltage of the data signal and is unrelated to the threshold voltage of the drive control module (DTFT), the effect of the threshold voltage on the light-emitting device (OLED) is avoided, thus increasing the uniformity of image brightness in the display region of the display device.