Flat Panel Display Signal Compensation via Position-Dependent Timing

The patent segments the pixel circuits into multiple groups based on their positional relationship with the data driver. Each group corresponds to a specific range of row numbers and is assigned a characteristic turn-on time width. The segmentation is organized such that pixel circuits in the same group share the same timing parameter, while adjacent groups have progressively different timing widths. This segmentation approach reduces control complexity by grouping pixels with similar electrical characteristics together, requiring only N different timing values for N groups rather than individual timing control for each pixel.

The patent implements parameter changes by systematically varying the turn-on time width parameter across different pixel circuit groups. The turn-on time width is changed as a function of the group index, creating a graded progression of timing values. Specifically, groups farther from the data driver (higher group indices) use progressively longer turn-on time widths. This parameter change strategy allows the system to compensate for RC effects using a simple, predictable progression of timing values that can be easily generated by the timing controller without requiring complex lookup tables or individual pixel calibration.