Pixel circuit, method for driving pixel circuit, and display device

• Main Authors: PARK JAEHOON, YOO JAE-SUNG
• Format: Patent
• Language: Chinese; English
• Published: 13.01.2023
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DISPLAY; EDUCATION; PHYSICS; SEALS

The invention discloses a pixel circuit, a method for driving the pixel circuit, and a display device. The pixel circuit includes: a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light-emitting element including an anode electrode connected to the fourth node and a cathode electrode to which a low-potential power supply voltage is applied, the light-emitting element being driven in accordance with a current from the driving element; a first switching element connected between the first node and the second node; and a second switching element connected between the third node and the fourth node. The present disclosure can shift a threshold voltage of a driving element to a detectable voltage range using a voltage applied between a second gate electrode and a source electrode of the driving element by applying a preset volta