Common Voltage Driving Circuit Independent Control
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Solution Overview
Problem
Existing display panels lack the ability to independently control common voltages across different regions, limiting the flexibility and quality of the display effect.
Innovation Solution
A common voltage driving circuit with multiple scan lines and common-voltage signal lines, arranged in an array to allow each common electrode unit to be independently controlled, enabling precise voltage adjustment for sub-pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If common electrodes are made as a whole structure, then the manufacturing process is simplified, but the ability to independently control common voltages in different regions is lost
Solution Approach 1:
The common electrode is divided into multiple independently controllable common electrode units (first common electrode unit and second common electrode unit), each connected to separate common voltage signal lines. This segmentation enables independent voltage control for different display regions while maintaining manufacturing feasibility through modular design.
2Device complexity
If common voltage is shared across the entire display panel, then the circuit design is simplified, but the display quality and compatibility for different regions cannot be optimized
Solution Approach 1:
Different common voltage signal lines (first common voltage signal line and second common voltage signal line) are applied to different common electrode units, enabling local optimization of display quality and compatibility for specific regions. This allows tailored voltage control for different display areas while maintaining overall system manageability.
3Adaptability or versatility
If common electrodes are divided into multiple independently controllable units, then independent voltage control is achieved, but the device complexity increases
Solution Approach 1:
The common electrode units are arranged in different display regions (first display region and second display region) and controlled through orthogonal signal line arrangements. This spatial organization in multiple dimensions manages the complexity by distributing control functions across the display area rather than concentrating circuitry in one location.
Data Source
AI summary
A common voltage driving circuit, a display device, and an electronic device are provided. The common voltage driving circuit includes multiple scan lines and multiple common-voltage signal lines, and further includes multiple common electrode units arranged in an array. The multiple scan lines extend in a first direction and are arranged at intervals in sequence in a second direction perpendicular to the first direction. The multiple common-voltage signal lines extend in the second direction and are arranged at intervals in sequence in the first direction. The multiple common electrode units are disposed at intersections of the multiple scan lines and the multiple common-voltage signal lines respectively. Common electrode units in a same column are all electrically coupled with a same common-voltage signal line. Common electrode units in a same row are all electrically coupled with a same second scan line.