Pixel Structure Curved Gap Wire Width Adjustment
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Solution Overview
Problem
Existing display technologies face issues with non-uniform heat generation across different regions due to varying wire resistance, leading to poor image quality and reduced service life.
Innovation Solution
A pixel structure with at least three sub-pixels featuring gaps of different trajectories, where wires with varying lengths and widths are strategically placed to minimize resistance differences, ensuring uniform heat generation by using a formula to calculate the line width of the second wire based on the length and width of the first wire.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If wires of uniform width are used across all gaps, then manufacturing is simplified, but resistance differences cause non-uniform heat generation
Solution Approach 1:
The patent applies local quality by varying the wire line width according to the specific requirements of different gaps. Wires passing through curved gaps (with longer trajectories) are given larger line widths, while wires through linear gaps maintain smaller widths. This localized adjustment compensates for the longer path length in curved gaps, balancing the resistance across different wire paths and achieving uniform heat generation throughout the display panel.
2Reliability
If wire line widths are increased to compensate for longer curved paths, then resistance uniformity improves, but manufacturing precision requirements increase
Solution Approach 1:
The patent employs parameter changes by systematically adjusting the line width parameter of wires based on their trajectory characteristics. A preset formula is used to calculate the appropriate line width for each wire, taking into account the length and curvature of its path. This quantitative parameter adjustment ensures that wires with longer curved trajectories have proportionally larger widths, thereby equalizing resistance values without requiring excessive manufacturing precision.
3Area of stationary object
If sub-pixel gaps are reduced to increase aperture ratio, then display area increases, but wire routing flexibility decreases
Solution Approach 1:
The patent utilizes curvature by introducing curved gap trajectories between sub-pixels instead of strictly linear paths. These curved gaps provide additional routing flexibility for wires, allowing them to navigate the reduced space between sub-pixels more effectively. The curved trajectories enable wires to achieve the necessary length for resistance balancing while accommodating the reduced gap dimensions required for high aperture ratios.
Data Source
AI summary
A pixel structure includes at least three sub-pixels and there is a gap between two adjacent sub-pixels. The gap includes at least a first gap and a second gap, where the first gap extends along a linear trajectory and the second gap extends along a curved trajectory. The wire includes at least a first wire and a second wire, wherein the first wire passes through the first gap along the linear trajectory and is spaced apart from the sub-pixels on both sides of the first gap, and the second wire passes through the second gap along the curved trajectory and is spaced apart from the sub-pixels on both sides of the second gap. The second wire has a line width larger than a line width of the first wire.