Pixel driving circuit, driving method, organic light-emitting display panel, and display device

Abstract

The invention discloses a pixel driving circuit, a driving method, an organic light-emitting display panel, and a display device, including: a data writing module, a storage module, at least one first light-emitting device, and first light-emitting devices corresponding to each first light-emitting device. A driving module, at least one second light-emitting device, and a second driving module corresponding to each second light-emitting device; wherein, through the mutual cooperation of the above-mentioned modules, the voltage of the signal of the node can be positive and negative through a simple structure. switching, so that the performance of the first driving module and the second driving module can be restored, thereby reducing the impact on the stability and life of the display panel caused by the performance deviation of the first driving module and the second driving module.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel driving circuit, a driving method, an organic light emitting display panel and a display device. Background technique [0002] Organic Light Emitting Diode (OLED) is one of the hot spots in the field of flat panel display research today. Compared with Liquid Crystal Display (LCD), OLED display has low energy consumption, low production cost, self-illumination, and wide viewing angle. and quick response. At present, OLED displays have begun to replace traditional LCD displays in display fields such as mobile phones, tablet computers, and digital cameras. [0003] Unlike LCDs that use a stable voltage to control brightness, OLEDs are driven by current and require a stable current to control their light emission. Generally, a pixel driving circuit is provided in an OLED display to drive the OLED to emit light. However, the structure of the current pixel driving c...

AI Technical Summary

Problems solved by technology

However, the structure of the current pixel driving circuit is complicated, and because there are defect states inside the driving transistor and the driving transistor is in the working state most of the time, when the gate of the driving transistor is at a large gate voltage for a long time, its threshold voltage drift will be Gradually serious, thereby accelerating the aging process of the driving transistor, which in turn affects the stability and life of the display panel

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