Display Panel Detection Line Layout to Prevent Cutting Shorts
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Solution Overview
Problem
The manufacturing process of display panels, particularly in the cutting of detection lines, leads to metal debris that can cause short circuits between adjacent lines, resulting in poor display performance due to the dense distribution and small line spacing of metal detection lines.
Innovation Solution
The use of non-metallic conductive materials for at least one detection line, alternating with metal detection lines to increase spacing and reduce the risk of short circuits during the cutting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If metal detection lines are used with dense distribution and small line spacing, then detection coverage is improved, but the risk of short circuits during cutting increases due to metal debris
Solution Approach 1:
The patent applies local quality by differentiating the material properties of detection lines based on their function. First detection lines use non-metallic conductive materials for spacing maintenance, while second detection lines use metallic materials for optimal detection performance. This localized material selection resolves the contradiction between detection coverage and short circuit risk.
Solution Approach 2:
The detection line system is segmented into two types: first detection lines made of non-metallic conductive materials and second detection lines made of metallic materials. This segmentation allows each type to perform its specific function optimally while reducing the overall risk of short circuits during the cutting process.
2Measurement precision
If multiple detection lines are added to improve detection capability, then detection precision is improved, but device complexity increases
Solution Approach 1:
The detection line system is divided into first detection lines (non-metallic) and second detection lines (metallic), with clear functional differentiation. This segmentation enables improved detection precision through multiple lines while managing complexity by assigning specific roles to each line type.
Solution Approach 2:
The patent introduces a new dimension of material composition (metallic vs. non-metallic) to differentiate detection lines, rather than simply adding more identical lines. This dimensional change allows for enhanced detection capability while maintaining manageable structural complexity through functional specialization.
Data Source
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Figure 3A~3B
AI summary
An electronic substrate, a method of manufacturing an electronic substrate, and a display panel are provided. The electronic substrate includes a base substrate, and the base substrate includes a display area and a peripheral area outside the display area. The electronic substrate further includes a plurality of sub-pixels and a plurality of data lines in the display area, and a plurality of signal input pads, a plurality of first detection lines, and a plurality of second detection lines in the peripheral area. The plurality of first detection lines and the plurality of second detection lines are on a side of the plurality of signal input pads away from the display area, and are electrically connected to the plurality of signal input pads. The plurality of first detection lines are made of a non-metallic conductive material, the plurality of second detection lines are made of a metal conductive material, and at least one of the plurality of first detection lines is provided between every two adjacent second detection lines. The electronic substrate can effectively reduce the risk of a short circuit between the detection lines.