Display Panel Residue Trace Layout for Narrow Bezel Cutting
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Solution Overview
Problem
The challenge is to minimize the width of the non-display area in display devices while improving process efficiency and yield during manufacturing.
Innovation Solution
A display device with a display panel featuring a conductive layer and a non-conductive film, including a first residue trace on the top surface of the non-conductive film and a second residue trace on one side of the first residue trace, which are optimized to reduce the non-display area width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the width of the non-display area is reduced to enhance immersion and aesthetics, then the display area increases, but the manufacturing process becomes more difficult and yield decreases
Solution Approach 1:
The patent divides the non-display area into two distinct regions: a first non-display area containing driving lines and circuits, and a second non-display area serving as a cutting margin. This segmentation allows the cutting process to be performed at a safe distance from the functional elements, reducing manufacturing difficulty while maximizing the display area.
Solution Approach 2:
The patent performs preliminary planning of the cutting margin location before the actual cutting process. By pre-defining the second non-display area as a dedicated cutting margin, the manufacturing process can proceed with higher precision and reduced risk, allowing the display area to be maximized without compromising manufacturing yield.
2Area of stationary object
If the cutting margin (second non-display area) is reduced to minimize non-display area width, then the overall display area increases, but process yield decreases
Solution Approach 1:
The patent applies a partial cutting margin approach by maintaining a minimal but sufficient second non-display area specifically for the cutting process. This margin is optimized to be just large enough to ensure high process yield and prevent defects, while being small enough to maximize the overall display area. The solution accepts a small necessary margin rather than attempting to eliminate it completely.
3Area of stationary object
If lines and circuits in the first non-display area are reduced, then the non-display area width can be minimized, but there is a limit to how much they can be reduced
Solution Approach 1:
The patent segments the non-display area into two functional zones: the first non-display area optimized for minimal width containing essential driving lines and circuits, and the second non-display area dedicated to cutting margin. This segmentation allows the driving circuits to be compactly arranged in the first area without compromising functionality, while the second area provides the necessary buffer for manufacturing.
Data Source
AI summary
A display device and method for manufacturing the display device are provided. The display device includes a display panel including at least one conductive layer and at least one non-conductive film on the at least one conductive layer; a first residue trace on a top surface of the at least one non-conductive film; and a second residue trace on one side of the first residue trace.