Display Bonding Structure With Seal Space for Water Mist Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices suffer from issues such as broken screens, water mist, abrasion, and light leakage due to unstable fixation and large gaps between the display panel and transparent protective layer, which increase production costs and reduce display quality.
Innovation Solution
A display assembly with a bonding member around the edge of the display panel and transparent protective layer, forming a sealed space with minimal gap and using adsorption forces to stabilize the connection, reducing the likelihood of abrasion and water ingress while distributing external forces evenly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If foam is used to fix the display panel between the module rubber frame and the iron front frame, then the assembly process is simplified, but the fixation firmness is insufficient causing the display panel to shake and collide during transportation
Solution Approach 1:
The patent changes the physical state of the bonding material from foam (soft, compressible) to OCA optical adhesive (rigid, stable) to improve fixation firmness. This parameter change in material properties eliminates panel shaking and collision during transportation while maintaining ease of assembly through the flexible OCA application process.
Solution Approach 2:
The patent extracts and removes the foam bonding material from the assembly structure, replacing it with OCA optical adhesive. This extraction eliminates the harmful effects of foam (poor firmness, panel shaking) while preserving the simplified assembly process benefit through direct OCA bonding between components.
2Adaptability or versatility
If a large gap of 3-8 mm is maintained between the transparent protective layer and the display panel, then the assembly tolerance is increased, but the sealing effect deteriorates allowing water vapor to enter and cause water mist
Solution Approach 1:
The patent changes the gap dimension parameter from 3-8 mm to a minimal gap of 0-0.5 mm through OCA bonding. This dramatic parameter reduction simultaneously achieves tight sealing to prevent water vapor ingress while maintaining assembly tolerance through the forgiving nature of OCA adhesive bonding that can accommodate minor misalignments.
Solution Approach 2:
The patent replaces the mechanical foam sealing system with a chemical bonding system using OCA optical adhesive. This substitution eliminates the large gap requirement of mechanical foam sealing while achieving superior sealing performance through molecular-level adhesion, preventing water vapor ingress without compromising assembly tolerance.
3Object-affected harmful factors
If the display panel is fully pasted with OCA glue to eliminate gaps, then the sealing effect is improved, but the cost increases significantly and the display panel becomes too rigid
Solution Approach 1:
The patent applies OCA optical adhesive locally at the edges and perimeter regions where sealing is most critical, rather than fully pasting the entire display panel surface. This local quality approach achieves effective sealing against water vapor ingress while using minimal OCA material, thereby controlling production costs and maintaining display panel flexibility in the central display area.
Solution Approach 2:
The patent applies OCA bonding partially at strategic locations (edges and perimeters) rather than excessively across the entire panel surface. This partial action provides sufficient sealing effectiveness to prevent water vapor ingress while minimizing OCA material consumption and associated costs, and preserving panel flexibility where full bonding is not required.
4Object-affected harmful factors
If the display panel is fully pasted with OCA glue, then the sealing effect is improved, but the display panel loses flexibility and becomes prone to breaking under external force
Solution Approach 1:
The patent applies OCA optical adhesive locally at the edges and perimeter regions where sealing is most critical, leaving the central display panel area unbonded or minimally bonded. This local quality approach maintains sealing effectiveness against water vapor ingress while preserving the flexibility and impact resistance of the display panel in the central area where full bonding would create rigidity and breakage susceptibility.
Solution Approach 2:
The patent applies OCA bonding partially at strategic edge locations rather than excessively across the entire panel surface. This partial bonding provides sufficient sealing effectiveness to prevent water vapor ingress while minimizing the creation of rigid structures, thereby maintaining the display panel's ability to flex and absorb impact forces without breaking.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces the probability of screen damage, water mist, and light leakage while lowering production costs by using a minimal amount of bonding material and simplifying the assembly process.
Implementation Method 1
using adsorption forces to stabilize the connection
Data Source
AI summary
A display assembly includes a display panel, a transparent protective layer, and bonding member, in which the bonding member is arranged around an edge of the display panel, one surface of the bonding member is fixedly connected with the display panel, another surface of the bonding member is fixedly connected with the transparent protective layer, the display panel and the transparent protective layer are formed with a bonding area and a gap area, the gap area surrounds the bonding area, and the bonding member surrounds the gap area.