Organic light-emitting pixel driving circuit, driving method, and organic light-emitting display panel

Abstract

The present disclosure discloses an organic light-emitting pixel driving circuit, driving method and an organic light-emitting display panel. A driving transistor is to generate a driving current, a light-emitting element is to emit light; a first transistor is to transmit a first initialization voltage to the light-emitting element; a second transistor is to transmit a second initialization voltage to the driving transistor; a third transistor is to transmit a data signal voltage to the pixel driving circuit; a fourth transistor is to transmit a reference voltage to the driving circuit; a first capacitor is coupled in series between the output terminal of the third transistor and the driving transistor; a fifth transistor is to control the first capacitor; a sixth transistor is to control light emission of the light-emitting element; a second capacitor is to maintain the charge amount between the gate and source of the driving transistor.

Description

technical field [0001] The present disclosure generally relates to the field of display technology, and in particular, relates to an organic light emitting pixel driving circuit, a driving method, and an organic light emitting display panel. Background technique [0002] The organic light-emitting display panel displays images by using organic light-emitting elements. The organic light-emitting display panel has the advantages of fast response and low power consumption, and is more and more widely used in various electronic devices. [0003] In general, a display panel of an organic light emitting display device includes a plurality of pixels arranged in a matrix shape, and each of the pixels includes an organic light emitting element. Therefore, the quality of the working state of the organic light-emitting element directly affects its uniformity and brightness. The organic light-emitting element is a current control component, which is usually driven by the current genera...

AI Technical Summary

Problems solved by technology

Due to the limitations of the manufacturing process, especially the low-temperature polysilicon technology, the threshold voltage Vth uniformity of the drive tube is very poor and has drift, resulting in different drive currents when the same gray-scale voltage is input.

The inconsistency of the driving current makes the working state of the organic light-emitting element unstable, resulting in poor uniformity of display brightness of the organic light-emitting panel

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