Display Panel Gate Timing for Multi-Stage Light Emission

The patent divides the light-emitting process into multiple discrete stages within one frame time. Each pixel circuit row performs light emission in separate stages (first light-emitting stage, second light-emitting stage, etc.), with time intervals between stages. This segmentation distributes the light emission temporally, preventing concentrated emission that causes flicker while maintaining sufficient total light-emitting duration.

The patent implements periodic light-emitting stages for each pixel circuit row. The light emission occurs in repeated cycles with fixed time intervals (t*m) between adjacent stages. This periodic action ensures uniform light emission over time, as the light-emitting device emits light at regular intervals rather than in a single concentrated burst, thereby eliminating display flicker.

The patent establishes a specific mathematical relationship for the time interval between adjacent light-emitting stages: the interval is set to t*m, where t is the row time and m is a coefficient greater than the number of gating signal lines n. This parameter change provides a clear, calculable rule for timing control, simplifying the implementation of multiple light-emitting stages while ensuring uniform light emission and avoiding flicker.

The patent applies different timing parameters to different pixel circuit rows based on their position and the gating signal line they are connected to. Each row has its light-emitting stages scheduled with specific time intervals relative to its row time, creating localized timing control that adapts to the specific configuration of each row while maintaining overall system coordination.

The patent makes each gating signal line multi-functional by having it control multiple shift register units that drive different pixel circuit rows. Instead of dedicating one gating signal line to one row, the same gating signal line is reused across multiple rows in a cyclic pattern. This universality reduces the total number of gating signal lines needed while still enabling coordinated control of multiple light-emitting stages across the display.

Instead of assigning one gating signal line to each pixel circuit row (the conventional approach), the patent inverts the assignment: multiple pixel circuit rows share a common gating signal line. This inversion reduces the number of signal lines required from N (one per row) to n (where n < N), simplifying the signal line structure while maintaining control capability through the cyclic sharing arrangement.