Display Panel Data Link Routing for Bezel Reduction
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Solution Overview
Problem
The challenge of reducing the bezel size in display panels is hindered by the presence of link lines for data signals in the non-display area, which complicates the reduction of the non-active area.
Innovation Solution
A bezel reduction data link structure is introduced, featuring a substrate with specific configurations of data lines and link lines, including first and second link lines extending in different directions, and metal patterns spaced apart from these lines to optimize space utilization and improve image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If link lines are disposed in the non-display area to deliver data signals, then data signal transmission is enabled, but the bezel size cannot be reduced
Solution Approach 1:
The patent transitions link lines from the non-display area (2D plane) into the display area (utilizing the third dimension of pixel arrangement space). By routing link lines through subpixel regions and utilizing overlapping configurations, the design moves the link line placement to a different spatial dimension, enabling bezel reduction while maintaining data signal transmission capability.
Solution Approach 2:
The patent implements nesting by placing link lines within and between subpixel structures. The link lines are embedded within the display area by utilizing the space occupied by subpixel arrangements, effectively nesting the link line configuration within the existing pixel matrix structure to eliminate the need for separate bezel space.
2Illumination intensity
If link lines are disposed in the non-display area, then data signal delivery is achieved, but image quality deteriorates due to increased reflected light
Solution Approach 1:
The patent extracts link lines from the non-display area where they would create visible reflections and interfere with image quality. By removing link lines from the bezel region and reconfiguring them within the display area, the harmful reflective effects are eliminated while the essential data signal transmission function is preserved.
Solution Approach 2:
The patent converts the potential harm of link lines (which would create reflections if placed in the bezel) into a benefit by strategically positioning them within the display area where they are obscured by subpixel structures. The link lines become invisible elements that serve their transmission function without degrading image quality, turning a potential defect into an advantageous configuration.
3Area of moving object
If link lines are disposed in the non-display area, then data signal transmission is enabled, but the display area cannot be expanded
Solution Approach 1:
The patent utilizes the vertical stacking and overlapping dimensions within the display area to accommodate link lines, rather than requiring horizontal expansion of the non-active area. By employing multi-layer configurations and routing link lines through the depth of the display structure, the design expands display area in the active region without sacrificing bezel space.
Solution Approach 2:
The patent creates a dynamic configuration where link lines can be flexibly routed through different subpixel regions and layers within the display area. This dynamic arrangement allows the display area to expand while link lines adapt their paths through the pixel matrix, enabling simultaneous growth of display area and maintenance of signal transmission functionality.
Data Source
AI summary
Discussed is a display apparatus including a substrate including a display area having a plurality of subpixels, a first data line disposed at the display area and extending in a column direction, a first link line disposed at the display area, electrically connected to the first data line, and extending in a row direction, a second link line disposed in the display area and extending in the column direction, a first metal pattern spaced apart from the first link line and extending in the row direction, and a second metal pattern spaced apart from the second link line and extending in the column direction.