Active matrix organic light emitting diode pixel unit circuit, display panel and electronic product

摘要

The present invention provides an Active Matrix Organic Light Emitting Diode (AMOLED) pixel unit circuit, a display panel and an electronic product for integrating a touch screen circuit into the AMOLED pixel unit circuit and producing an AMOLED display panel having the functionality of a touch screen. The AMOLED pixel unit circuit comprises a driving module, configured to amplify a sensing signal generated by a touch sensing module, output the sensing signal through a sensing signal output module, and drive a light emitting module; the light emitting control module, configured to control the light emitting module to emit light; a threshold compensation module, configured to compensate a threshold voltage of the driving module; the touch sensing module, configured to generate the sensing signal and output the sensing signal to the driving module; and the sensing signal output module, configured to output the sensing signal amplified by the driving module.

主权项

1. An Active Matrix Organic Light Emitting Diode (AMOLED) pixel unit circuit, comprising a light emitting circuit, an amplifying and driving circuit, a threshold compensation circuit, a light emitting control-circuit, a touch sensing circuit and a sensing signal outputting circuit, wherein
the amplifying and driving circuit is configured to amplify a sensing signal generated by the touch sensing circuit, output the sensing signal through the sensing signal outputting circuit, and drive the light emitting circuit; the light emitting control-circuit is configured to control the light emitting circuit to emit light; the threshold compensation circuit is configured to compensate a threshold voltage of the amplifying and driving circuit; the touch sensing circuit is configured to generate the sensing signal and output the sensing signal to the amplifying and driving circuit; and the sensing signal outputting circuit is configured to output the sensing signal amplified by the amplifying and driving circuit, wherein the amplifying and driving circuit comprises a first transistor, wherein a gate electrode of the first transistor is directly connected to a first node of the AMOLED pixel unit circuit, and a source electrode and a drain electrode of the first transistor are directly connected to a second node and a third node of the AMOLED pixel unit circuit, respectively, wherein the first node is a point directly connecting the amplifying and driving circuit and the threshold compensation circuit; the second node is a point directly connecting the amplifying and driving circuit, the light emitting control circuit, and the sensing signal outputting circuit; and the third node is a point directly connecting the amplifying and driving circuit, the light emitting control circuit, and the threshold compensation circuit.