CPC G09G 3/32 (2013.01) [G09G 2300/0426 (2013.01); G09G 2320/0233 (2013.01)] | 18 Claims |
1. A compensation method for a display panel, comprising:
selecting a rectangular test area in a display area of a display panel, wherein the rectangular test area is provided with one or more pixel circuits, each of the pixel circuits comprises a driving transistor and a sensing transistor, and a first electrode of the sensing transistor is connected to a source electrode of the driving transistor;
obtaining a first average current value flowing through all the sensing transistors and a second average current value flowing through all the driving transistors in the rectangular test area;
obtaining a first current curve and a second current curve flowing through the driving transistors based on the first average current value and the second average current value under different driving voltages, wherein the driving voltage is a gate-to-source voltage difference of the driving transistor, the first current curve is a current curve corresponding to the gate-source voltage difference of the driving transistor before the light-emitting stage, and the second current curve is a current curve corresponding to the gate-source voltage difference of the driving transistor in the light-emitting stage;
determining a transmission loss coefficient of a data signal according to the first current curve and the second current curve; and
compensating the driving voltage of each of the pixel circuits in the rectangular test area based on the transmission loss coefficient.
|