OLED Panel Driving with Multi-Stage Data Writing for Flicker Reduction

The patent divides the data writing process into multiple stages: a first data write stage writing first data voltages, and a second data write stage writing second data voltages. This segmentation allows the display to progressively adjust brightness levels, overcoming the hysteresis effect that causes slow brightness transitions and screen flicker in single-stage writing approaches.

The patent applies preliminary action by writing first data voltages in the first data write stage before writing second data voltages in the second data write stage. This preliminary data writing prepares the display pixels for the final brightness state, enabling faster overall brightness transition while distributing the writing load across two stages rather than requiring excessive frequency increases in a single stage.

The patent implements periodic action by establishing a regular pattern of first data write stage followed by second data write stage within each picture update period. This periodic multi-stage writing approach creates a stable, predictable control rhythm that reduces screen flicker and improves display reliability, while the regularity of the pattern helps manage control system complexity through systematic timing.