Mother Substrate Anti-Peeling Layout for Display Panel Films
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In the manufacturing of display devices, protective films on display panels often get removed during processing, leading to reduced yield and reliability issues due to the adhesive force between the films and the acid-resistant film.
Innovation Solution
A mother substrate design featuring protective films and anti-peeling patterns adjacent to them, where the anti-peeling patterns are positioned in specific directions relative to the acid-resistant film removal path, reducing the adhesive force at the film ends and allowing the protective films to remain intact during processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protective films are adhered on display panels during manufacturing, then the display panels are protected, but the adhesive force between the films and acid-resistant film causes the protective films to be removed during processing
Solution Approach 1:
The patent introduces anti-peeling patterns that divide the protective film structure into distinct regions: areas with strong adhesive force (away from edges) and areas with weak adhesive force (at edges adjacent to anti-peeling patterns). This segmentation allows the film to remain attached where needed while preventing removal at critical edges during acid-resistant film removal.
Solution Approach 2:
The patent applies different adhesive properties to different locations of the protective film. The anti-peeling patterns create local regions with reduced adhesive force specifically at the edges of the protective film, while the bulk of the film maintains its adhesive properties. This local modification of adhesive quality prevents film removal during processing without compromising overall film attachment.
2Reliability
If anti-peeling patterns are formed adjacent to protective films, then film removal is prevented, but the manufacturing process complexity increases
Solution Approach 1:
The patent combines the formation of protective films and anti-peeling patterns into a single coating step. Both structures are created simultaneously from the same material layer, eliminating the need for separate fabrication processes. This merging approach reduces manufacturing complexity while maintaining the functional benefits of anti-peeling patterns.
Solution Approach 2:
The anti-peeling patterns serve multiple functions: they reduce adhesive force at film edges to prevent removal during processing, and they can be removed together with the acid-resistant film in the same etching step. This multi-functionality reduces the number of separate components and processes needed in the manufacturing system.
3Productivity
If protective films remain on display panels during manufacturing, then yield increases, but the adhesive force causes reliability issues
Solution Approach 1:
By segmenting the adhesive force distribution through anti-peeling patterns, the patent enables protective films to remain reliably attached during manufacturing (improving yield) while preventing problematic removal at edges (maintaining reliability). The segmented adhesive properties allow the film to stay in place where needed without being accidentally removed during processing.
Solution Approach 2:
The patent changes the adhesive force parameter locally by introducing anti-peeling patterns. This creates a gradient or variation in adhesive strength across different regions of the protective film, allowing the film to maintain attachment under normal conditions while resisting removal during acid-resistant film removal. The parameter change enables simultaneous achievement of high yield and high reliability.
Data Source
AI summary
A mother substrate for a display panel includes display panels disposed on a substrate, protective films disposed on the substrate and covering the display panels, and anti-peeling patterns disposed on the substrate and adjacent to the protective films, respectively.