Pixel circuit, organic electroluminescent display panel and display device

Abstract

A pixel circuit, an organic electroluminescent display panel and a display device are provided. The pixel circuit includes a luminous device (D), a photosensitive device (P), a drive control sub-module (), a data write sub-module (), a light-emitting control sub-module () and a touch detection sub-module (). Upon the data write sub-module () being turned on, a data signal at the data signal terminal (Data) is transmitted to the drive control sub-module () by the data write sub-module (). Upon the light-emitting control sub-module () being turned on, the light-emitting control sub-module () controls the drive control sub-module () to drive the luminous device (D) to give off light, so as to achieve a display function. Upon the touch detection sub-module () being turned on, the touch detection sub-module () controls output of a touch detection signal from the drive control sub-module () to a touch signal read terminal. The touch detection signal is decreased as the light intensity irradiated onto the photosensitive device is increased, so as to achieve a touch detecting function. Touch and display functions are integrated in the pixel circuit, so that the production cost involved in arranging a display drive circuit and a touch circuit separately can be saved, and thickness of the display panel can be thinned as well.