Pixel circuit, driving method for pixel circuit, and display panel
By designing a pixel circuit that includes a driving transistor, a light-emitting element, a writing module, and a compensation module, the problem of unstable driving current in organic light-emitting displays was solved, threshold voltage compensation and driving current stability were achieved, and the display effect was improved.
WO2026143841A1PCT designated stage Publication Date: 2026-07-09WUHAN TIANMA MICRO ELECTRONICS CO LTD
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- WUHAN TIANMA MICRO ELECTRONICS CO LTD
- Filing Date
- 2025-02-28
- Publication Date
- 2026-07-09
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Figure CN2025079965_09072026_PF_FP_ABST
Abstract
A pixel circuit (10), a driving method therefor, and a display panel (01). The pixel circuit (10) comprises: a driving transistor (M3), which is an N-type transistor; a first write module (11), wherein a first terminal is electrically connected to a data voltage terminal, and a second terminal is electrically connected to a gate electrode of the driving transistor (M3); a second write module (12), wherein a first terminal is electrically connected to a first reference voltage terminal, and a second terminal is electrically connected to the gate electrode of the driving transistor (M3); a compensation module (13), wherein a first terminal and the gate electrode of the driving transistor (M3) are electrically connected to a first node (N1), and a second terminal and a first electrode of the driving transistor (M3) are electrically connected to a second node (N2); a first capacitor (C1), wherein a first plate is electrically connected to the first node (N1), and a second plate and a second electrode of the driving transistor (M3) are electrically connected to a third node (N3); a second capacitor (C2), wherein a first plate is electrically connected to the third node (N3), and a second plate is electrically connected to a first power supply voltage terminal; a first light-emitting control module (14), electrically connected between a light-emitting element (OLED) and the second node (N2); and a second light-emitting control module (15), electrically connected to the third node (N3).
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