Bi-directional Gate Driving Circuit for LCD Scanning Direction Control

The patent applies dynamics by making the shift register units capable of operating in both forward and backward directions. Each shift register unit is designed with bidirectional clock input terminals (CLK1, CLK2) that can receive clock signals in either direction, allowing the scanning direction to be dynamically changed without altering the basic circuit structure. This resolves the contradiction by enabling scanning direction adaptability while maintaining circuit simplicity.

The patent implements universality by designing each shift register unit to perform multiple functions: it can operate in forward scanning mode, backward scanning mode, and can be selectively activated or deactivated. The bidirectional clock input terminals and the switching mechanism allow the same circuit structure to serve both scanning directions, eliminating the need for separate circuits for each direction and thus resolving the contradiction between adaptability and complexity.

The patent applies universality by designing each shift register unit to handle both forward and backward scanning operations. The bidirectional clock input terminals (CLK1, CLK2) and the switching mechanism enable the same circuit structure to serve both scanning directions, eliminating the need for separate circuits for each direction and thus resolving the contradiction between adaptability and complexity.

The patent makes the shift register units dynamically configurable through bidirectional clock signals. By controlling which clock terminal receives the active clock signal, the scanning direction can be changed on-the-fly without physical reconfiguration or additional hardware, maintaining circuit simplicity while achieving bidirectional functionality.

The patent applies segmentation by dividing the gate driving circuit into multiple independently controllable shift register units (SR1, SR2, ..., SRn). Each unit can be selectively activated or deactivated based on the scanning direction requirement. This segmentation allows flexible control of scanning direction by simply enabling or disabling specific units, rather than requiring complex switching mechanisms, thus resolving the contradiction between adaptability and control complexity.

The patent implements dynamic control by allowing the shift register units to be selectively activated based on scanning direction. The first shift register unit is activated for forward scanning, while the last shift register unit is activated for backward scanning, with intermediate units as needed. This dynamic activation approach simplifies switch control compared to complex routing mechanisms.