AMOLED Display Panel Grid Routing for High-Resolution Initialization Signals
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Solution Overview
Problem
The increasing resolution of AMOLED display panels leads to limited layout space, making it difficult to connect initialization signal line patterns in the same row, thereby increasing production costs.
Innovation Solution
A display panel design with a first auxiliary signal line layer in a grid structure in anode spacing areas, coupled to initialization signal lines, and additional auxiliary signal lines to ensure connectivity and stability, allowing for shared layers to reduce thickness and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution of the display panel is increased, then the display quality is improved, but the layout space becomes smaller making it difficult to connect initialization signal line patterns
Solution Approach 1:
The patent introduces a third-layer auxiliary initialization signal line structure that extends in the column direction (vertical dimension), allowing signal transmission perpendicular to the traditional row-direction signal lines. This dimensional change enables effective use of vertical space that would otherwise be unavailable for horizontal signal routing in high-resolution displays.
Solution Approach 2:
The auxiliary initialization signal line acts as an intermediary structure that bridges the gap between traditional initialization signal lines and sub-pixel driving circuits. By introducing this intermediate layer with different orientation and positioning, the patent enables signal transmission without requiring direct connection between conventional signal lines and distant sub-pixel circuits.
2Ease of manufacture
If the initialization signal line patterns are connected using traditional methods, then the signal transmission is simple, but the production cost increases due to layout difficulties
Solution Approach 1:
The patent merges the auxiliary initialization signal line layer with the existing initialization signal line structure, creating an integrated multi-layer signal transmission system. By combining traditional row-direction signal lines with column-direction auxiliary lines in the same device architecture, the patent achieves both manufacturing simplicity and cost-effectiveness while solving the connectivity problem.
3Reliability
If additional auxiliary signal line layers are added to ensure connectivity, then the signal transmission stability is improved, but the device structure becomes more complex
Solution Approach 1:
The auxiliary initialization signal line is strategically positioned in specific regions where traditional signal line connections are insufficient, rather than uniformly distributing signal lines throughout the entire display panel. This localized approach enhances signal transmission stability in critical areas while minimizing overall structural complexity.
Data Source
AI summary
The present disclosure provides a display panel, a manufacturing method thereof, and a display device. The initialization signal line layer in the display panel includes an initialization signal line pattern arranged in each sub-pixel area; the anode layer includes a plurality of anode patterns, and an anode spacing area is formed between adjacent anode patterns; the first auxiliary signal line layer is a grid structure, at least part of the first auxiliary signal line layer is located in the anode spacing area, and the initialization signal line pattern in each sub-pixel area is coupled to the first auxiliary signal line layer.