Buffer Layer Deformable Particles Impact Resistance OLED
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Solution Overview
Problem
OLED display devices have poor impact resistance due to material and structural limitations, leading to defects like dark or bright spots when struck by external forces, which affects their service life and stability.
Innovation Solution
A display panel with an encapsulating unit that includes a buffer layer with deformable particles and a thin film encapsulating layer, which absorbs and dissipates external forces, preventing damage to the display substrate by distributing and absorbing impact effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If OLED display devices are made with standard encapsulation, then they achieve basic display functionality, but they have poor impact resistance and develop defects like dark or bright spots when struck
Solution Approach 1:
The patent applies beforehand cushioning by incorporating a buffer layer with deformable particles into the encapsulation structure before the display device is subjected to impact. The buffer layer is positioned between the display substrate and the external environment, and the deformable particles within it are designed to deform or rearrange when external force is applied, thereby cushioning the impact before it reaches the fragile OLED components. This preventive measure resolves the contradiction by enhancing impact resistance without requiring complex reactive protection systems.
Solution Approach 2:
The patent employs composite materials by creating an encapsulation structure that combines the buffer layer with deformable particles embedded in an encapsulant matrix. This composite structure integrates the protective function of the encapsulation with the shock-absorbing properties of the deformable particles, achieving enhanced impact resistance while maintaining a relatively simple overall structure. The composite material approach allows the encapsulation to provide both structural integrity and impact protection.
2Reliability
If a buffer layer with deformable particles is added to enhance impact resistance, then mechanical reliability improves, but the encapsulation structure becomes more complex
Solution Approach 1:
The patent applies universality by designing the buffer layer to serve multiple functions simultaneously: it provides mechanical cushioning against impact, maintains the encapsulation structure's integrity, and protects the display substrate from stress. The deformable particles within the buffer layer contribute to shock absorption while the encapsulant material provides structural continuity. This multi-functional design resolves the contradiction by achieving enhanced mechanical reliability without proportionally increasing structural complexity, as a single buffer layer component performs multiple protective roles.
3Reliability
If the buffer layer uses deformable particles, then external forces are absorbed and distributed effectively, but the manufacturing process becomes more difficult
Solution Approach 1:
The patent applies parameter changes by carefully controlling the physical parameters of the deformable particles, such as their size, shape, material composition, and distribution density within the buffer layer. By optimizing these parameters, the patent achieves effective impact protection while facilitating manufacturing. For example, selecting particles with appropriate size ranges and using established encapsulation techniques to embed them allows the structure to absorb and distribute external forces effectively without requiring complex or specialized manufacturing processes.
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 encapsulating unit significantly enhances the mechanical reliability of the display panel, reducing the occurrence of defects and extending the service life by effectively absorbing and distributing external forces, even when subjected to significant impacts.
Implementation Method 1
The first buffer particles are elastically deformable or capable of being crushed by compression
Implementation Method 2
The buffer body is deformable under an action of an external force thereby compressing the first buffer particles
Data Source
AI summary
The present disclosure relates to a display panel and a display device. The display panel includes a display substrate and an encapsulating unit. The encapsulating unit is disposed on the display substrate, and the encapsulating unit includes at least one buffer layer. The buffer layer includes a buffer body and first buffer particles. The buffer body is deformable under an action of an external force thereby compressing the first buffer particles, and the first buffer particles are elastically deformable or capable of being crushed by compression.