Resin-Filled Pattern Glass for Flexible Display Surface Quality
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Solution Overview
Problem
Existing flexible electronic devices face challenges in maintaining surface quality and structural integrity during folding and unfolding, particularly due to the use of glass patterns that can lead to mechanical stress and visibility of boundaries between materials.
Innovation Solution
A display device design featuring a pattern glass with grooves filled with resins, where the resins protrude to create inclined surfaces, enhancing structural support and minimizing visibility of material boundaries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pattern glass is used to ensure flexibility, then adaptability is improved, but surface quality deteriorates due to visible boundaries and mechanical stress
Solution Approach 1:
The patent applies local quality by creating a pattern glass structure where different regions have different properties: the patterned portion has grooves filled with resin to reduce stress concentration, while non-patterned portions maintain glass integrity. This localized modification improves surface quality in critical areas without compromising overall flexibility.
Solution Approach 2:
The patent uses composite materials by combining glass with resin filling in the grooves. This composite structure allows the pattern glass to maintain flexibility while the resin-filled grooves reduce mechanical stress and improve surface quality by eliminating visible boundaries and stress concentration points.
2Strength
If pattern glass with grooves is used, then structural integrity is improved, but device complexity increases due to multiple materials and manufacturing steps
Solution Approach 1:
The patent applies preliminary action by pre-forming the grooves in the pattern glass before final assembly. The grooves are created and filled with resin in advance, which simplifies the overall manufacturing process by preparing stress-relief structures beforehand rather than adding them as separate complex steps during assembly.
3Stress or pressure
If resin filling is used to fill grooves, then mechanical stress is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies parameter changes by optimizing the groove dimensions and resin filling parameters. The grooves are designed with specific depth and width parameters that allow complete filling without excessive precision requirements. The resin material parameters are also optimized to ensure proper filling and bonding, reducing stress while maintaining manufacturability.
Data Source
AI summary
A display device includes a display panel including a display surface, a pattern glass including a first non-patterned portion, a patterned portion and a second non-patterned portion which are disposed on the display panel and arranged in a first direction, and a first filling resin filling a first groove defined in an upper surface of the patterned portion and a second filling resin filling a second groove defined in a lower surface of the patterned portion. At least one of an upper surface of the first filling resin or a lower surface of the second filling resin may protrude outward from the pattern glass, and the protruding upper surface of the first filling resin, or the protruding lower surface of the second filling resin may include an inclined surface.