Bent Display Panel Edge Protection With Photocurable Resin
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Solution Overview
Problem
Display panels in mobile electronic devices are prone to damage due to impacts at the edge when bent, especially when in contact with the housing, which can lead to structural failure.
Innovation Solution
A display apparatus with a substrate having a first and second area connected by a bent area, protected by a first and second protective layer made of photocurable resin, cured by light with a wavelength of 450-500 nm, and a bracket with an injection hole for resin application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display panel is bent to form a preset angle, then the adaptability of the display apparatus is improved, but the edge of the display panel becomes vulnerable to impact damage
Solution Approach 1:
A protective layer is formed in advance on the edge and bent area of the display panel before the panel is installed in the housing. This protective layer acts as a cushion that absorbs impact forces, preventing damage to the vulnerable edge and bent areas of the display panel while maintaining the bending capability of the apparatus
2Stability of the object's composition
If the display panel contacts the housing, then the structural stability is improved, but impact damage occurs at the edge of the display panel
Solution Approach 1:
A protective layer is introduced as an intermediary substance between the display panel edge and the housing. This protective layer allows the display panel to maintain contact with the housing for structural stability while preventing direct impact damage by absorbing and distributing the contact forces
3Reliability
If a protective layer is applied to the bent area, then the reliability of the display panel is improved, but the device complexity increases
Solution Approach 1:
The protective layer formation process is merged with the existing display panel manufacturing process. The protective layer is applied in the same manufacturing line using the same equipment, combining multiple functions into a single integrated process step, thereby minimizing the increase in device complexity while achieving reliable protection
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 protective layers effectively prevent damage to the display panel edges and bent areas, enhancing durability and structural integrity.
Implementation Method 1
A first protective layer is disposed inside the bent area of the substrate. A second protective layer is disposed on at least a portion of an edge of the substrate and at least one surface of the bent area of the substrate. The first protective layer and the second protective layer may each include a photocurable resin. The photocurable resin may be cured by light with a peak top of a wavelength in a range of about 450 nm to about 500 nm.
Data Source
AI summary
A display apparatus including a display panel. The display panel comprises a substrate including a first area, a second area, and a bent area that is in a bent state. The bent area connects the first area to the second area. A first protective layer is disposed inside the bent area of the substrate. A second protective layer is disposed on at least a portion of an edge of the substrate and at least one surface of the bent area of the substrate.