2results about How to "Increase potential difference" patented technology

This invention discloses a display panel, its driving method, and a display device. The display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a light-emitting control module, a driving module, and a compensation module. The light-emitting control module includes a first light-emitting control module, which selectively provides a first power signal to the driving module. The driving module provides a driving current to the light-emitting element and includes a driving transistor. The compensation module compensates for the threshold voltage of the driving transistor. The operation of the pixel circuit includes a light-emitting stage and a biasing stage. In the biasing stage, the first light-emitting control module and the driving module are turned on, and the compensation module is turned off. The driving transistor is disconnected from the light-emitting element, and the first power signal is written from the source of the driving transistor to its drain to adjust the bias state of the driving transistor. This invention reduces the threshold voltage drift of the driving transistor.

This application provides a pixel circuit, a display panel, and a display device. The pixel circuit includes: a driving module; a bias compensation module, wherein the control terminal of the bias compensation module is electrically connected to a first control signal line, the first terminal of the bias compensation module is electrically connected to a target signal line, and the second terminal of the bias compensation module is electrically connected to either the first terminal or the second terminal of the driving module; the target signal line is electrically connected to a first periodic signal. This application can adjust the bias state of the threshold voltage of the driving module and can flexibly meet the adjustment requirements of the threshold voltage of the driving module under different conditions.