Line Compensated Overdriving Circuit for Color Sequential Display Brightness Uniformity

The patent applies preliminary action by writing data to bottom lines before top lines in alternating subframes. Specifically, in odd subframes, bottom lines are addressed first, and in even subframes, top lines are addressed first. This preliminary addressing ensures that all lines have sufficient response time regardless of their position, eliminating the spatial intensity variations caused by unidirectional addressing sequences.

The patent implements periodic action by alternating the line addressing sequence between consecutive subframes. Odd subframes use one addressing sequence (e.g., bottom to top) while even subframes use the opposite sequence (e.g., top to bottom). This periodic alternation ensures that all pixel lines receive adequate response time periodically, compensating for the insufficient response time that would occur with a fixed unidirectional sequence.

The patent uses preliminary action by pre-addressing bottom lines in odd subframes before top lines are addressed. This ensures that bottom lines receive sufficient charging time even though they are addressed later in the sequence. The preliminary action of addressing bottom lines first in alternating subframes prevents the dimming effect without requiring complex real-time adjustments during the addressing process.

The patent applies dynamics by making the line addressing sequence flexible and adaptive rather than fixed. The system dynamically alternates between two addressing sequences (top-to-bottom and bottom-to-top) based on the subframe number. This dynamic adjustment allows the system to maintain simple sequential addressing while periodically optimizing the response time for different line positions, preventing bottom portion dimming.

The patent applies preliminary action by addressing bottom lines before top lines in odd subframes. This preliminary addressing ensures that bottom lines have sufficient time to charge their capacitors to the correct gray values before the subframe illumination period begins. By reversing the addressing sequence periodically, the system maintains ease of operation while ensuring accurate gray value representation for all lines.

The patent implements periodic action by alternating the addressing sequence between odd and even subframes. In odd subframes, bottom lines are addressed first to ensure they have sufficient charging time. In even subframes, the sequence is reversed. This periodic alternation maintains the simplicity of sequential addressing while periodically correcting the timing issue that would otherwise cause inaccurate gray values on bottom lines.