Display Substrate Node Control Circuit for Scan Mode Switching
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Solution Overview
Problem
In the field of display technology, the transition between bidirectional and unidirectional scanning driving circuits requires numerous mask changes, leading to high mask costs and compatibility issues.
Innovation Solution
A display substrate with a driving circuit that includes a first node control circuit, comprising two transistors and connection structures, allowing for switching between bidirectional and unidirectional scanning by modifying only two masks, thereby reducing mask costs and improving compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the structure of the bidirectional scanning driving circuit is changed to unidirectional scanning driving circuit, then the scanning direction is simplified, but a large number of masks need to be changed leading to high mask cost
Solution Approach 1:
The patent applies universality by designing a driving circuit structure where the same basic circuit components can serve multiple scanning modes. By adding only two masks to the unidirectional scanning circuit, the same circuit can be adapted for bidirectional scanning, making the circuit design universal across different scanning requirements and significantly reducing mask costs.
Solution Approach 2:
The patent implements dynamics by making the circuit configuration adaptable through minimal mask changes. The driving circuit can dynamically switch between unidirectional and bidirectional scanning modes by simply modifying two masks, allowing the system to adapt its functionality without complete circuit redesign.
2Adaptability or versatility
If the driving circuit structure is modified for different scanning modes, then product compatibility is improved, but the number of masks required increases
Solution Approach 1:
The patent achieves universality by creating a driving circuit that maintains high product compatibility while requiring minimal masks. The same circuit architecture supports both unidirectional and bidirectional scanning with only two additional masks, making it universally applicable across different display products and scanning requirements.
Solution Approach 2:
The patent applies preliminary action by designing the circuit structure in advance to accommodate future mode changes. The base circuit is pre-configured with the capability to support bidirectional scanning, requiring only two preliminary mask additions rather than complete redesign when compatibility requirements arise.
Data Source
AI summary
A display substrate includes a driving circuit arranged on a base substrate, the driving circuit includes a first node control circuit including a first transistor and a second transistor; a gate/first/second electrode of the first transistor is electrically connected to a first control terminal a first voltage terminal the first node; a gate/first/second electrode of the second transistor is electrically connected to a second control terminal the first node a second voltage terminal; the display substrate also includes a first connection structure and a second connection structure arranged on the base substrate; the first transistor is connected to a part of the first connection structure; and/or, the second transistor is connected to a part of the second connection structure.