Gate Driving Circuit for Instantaneous Forward Reverse Scanning Switching
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Solution Overview
Problem
Existing display technologies cannot realize real-time switching between forward and reverse scanning functions due to the need to change driving sequences, which prevents instantaneous switching between these modes.
Innovation Solution
A display panel with a gate driving circuit comprising cascaded shift register units connected through switch elements, allowing for control of scanning directions without sequence changes, enabling seamless switching between forward and reverse scanning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the driving sequence is changed to switch between forward and reverse scanning, then the scanning direction can be switched, but real-time switching cannot be achieved due to code re-download requirements
Solution Approach 1:
The patent pre-configures multiple driving sequences (first driving sequence for forward scanning, second driving sequence for reverse scanning) within the gate driving circuit. The circuit maintains both sequences ready in advance, allowing instantaneous switching by simply selecting which sequence to execute without needing to re-download codes, thus resolving the time loss issue.
Solution Approach 2:
The patent implements dynamic switching capability between forward and reverse scanning by making the gate driving circuit adaptable to different driving sequences through control signals. The circuit can dynamically change its operating mode (scanning direction) without physical reconfiguration, enabling real-time switching while maintaining versatility.
2Adaptability or versatility
If the driving sequence is changed to realize forward and reverse scanning, then the scanning function can be switched, but the switching process becomes complex due to code downloads
Solution Approach 1:
The gate driving circuit is designed to self-contain multiple driving sequences internally, eliminating the need for external code downloads when switching between forward and reverse scanning. The circuit serves itself by having all necessary driving sequences already integrated, reducing the complexity of external control and code management.
Solution Approach 2:
The patent makes the gate driving circuit universal by integrating multiple driving sequences (both forward and reverse scanning sequences) within a single circuit. This multi-functional design allows the circuit to handle different scanning modes without requiring separate control systems or code downloads, simplifying the overall control architecture.
Data Source
AI summary
A display panel, a driving method of a display panel, and a display device are provided. The display panel includes pixel circuits and a gate driving circuit including cascaded first shift register units. A trigger signal input terminal of the first stage first shift register unit is connected to a trigger signal terminal through a first switch element. A signal output terminal of the i-th stage first shift register unit is connected to a trigger signal input terminal of the (i+1)-th stage first shift register unit through a second switch element. A trigger signal input terminal of the N-th stage first shift register unit is connected to the trigger signal terminal through a third switch element. A signal output terminal of the j-th stage first shift register unit is connected to a trigger signal input terminal of the (j−1)-th stage first shift register unit through a fourth switch element.