Display Panel Bias Adjustment for Flicker Prevention

The patent applies preliminary action by performing bias adjustment on the driving transistor before the actual refresh rate switch takes effect. The bias adjustment stage is inserted between the high refresh rate mode and low refresh rate mode to pre-adjust the transistor parameters, preventing ion polarization and threshold voltage shifts that would otherwise cause screen flickering during the transition.

The patent segments the refresh rate transition process into distinct stages: a data writing stage followed by a bias adjustment stage. This segmentation allows the system to separately handle data display operations and transistor parameter adjustments, ensuring that the bias adjustment occurs without interfering with the normal display refresh cycle.

The patent merges the bias adjustment function with the existing data writing circuitry. The same transistor and capacitor structures used for data writing are reused for bias adjustment purposes, eliminating the need for separate dedicated bias adjustment components and reducing overall circuit complexity while still achieving threshold voltage stability.

The patent implements multi-functionality by designing the data writing transistor and storage capacitor to serve dual purposes: both data writing operations and bias adjustment operations. This universal design allows a single circuit structure to perform multiple functions, avoiding the need for additional dedicated bias adjustment circuits.