Shared Data Line Display Crosstalk Compensation by Programming Phase

The data line configuration is segmented into multiple programming phases (first programming phase, second programming phase, etc.) within each line time. Pixels in the same row are programmed in different phases, which divides the continuous data loading process into discrete temporal segments. This segmentation allows for phase-dependent crosstalk compensation, where different compensation values are applied based on which programming phase the pixel operates in, thereby reducing horizontal crosstalk while maintaining the shared data line structure.

The patent applies parameter changes by introducing phase-dependent crosstalk compensation values that vary based on the programming phase. The crosstalk compensation circuitry selects different compensation parameters (first crosstalk compensation value, second crosstalk compensation value, etc.) corresponding to different programming phases. This dynamic parameter adjustment compensates for the capacitive coupling effects that cause horizontal crosstalk, allowing the shared data line configuration to maintain low complexity while achieving crosstalk reduction through intelligent parameter selection.

The patent implements preliminary action by pre-calculating and storing multiple crosstalk compensation values corresponding to different programming phases before actual pixel programming occurs. The crosstalk compensation lookup table is pre-populated with compensation values that account for the expected capacitive loads in each phase. During operation, the compensation circuitry simply retrieves the appropriate pre-computed value based on the current programming phase, rather than performing complex real-time calculations. This preliminary preparation reduces the computational burden during active display refresh, improving image fidelity without proportionally increasing device complexity.

The patent introduces an intermediary element - the crosstalk compensation lookup table - that mediates between the shared data line configuration and the pixel programming process. This lookup table serves as a pre-computed reference that translates programming phase information into appropriate compensation values. The intermediary structure simplifies the compensation process by providing direct lookup rather than requiring complex real-time analysis of capacitive loads, thereby improving image fidelity while limiting the increase in device complexity to a manageable lookup table and phase detection circuitry.