Display Panel Edge Reinforcement for Crack Resistance
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Solution Overview
Problem
Display apparatuses face durability limitations due to potential cracking near edges and areas where components are attached, especially when external impacts occur, which can propagate cracks and reduce their structural integrity.
Innovation Solution
Incorporating a reinforcement layer on the display panel without overlapping with the optical functional layer and circuit, strategically positioned to absorb stress and prevent crack propagation, which can be made of organic or adhesive materials and designed to match the substrate or optical functional layer's surface for enhanced durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If various components are attached to the display panel, then the display panel can perform additional functions, but the areas other than the attachment areas become more prone to crack generation and propagation
Solution Approach 1:
The patent applies local quality by placing reinforcement members specifically in edge areas and regions without components, creating non-uniform structural reinforcement where it is most needed. The reinforcement members are strategically positioned in areas prone to crack generation while leaving component attachment areas unchanged, thus improving overall reliability without compromising functionality.
2Reliability
If reinforcement is added to prevent cracks, then durability is improved, but the reinforcement cannot overlap with optical functional layer or circuit
Solution Approach 1:
The patent segments the display panel into distinct functional zones: component attachment areas, optical functional layer areas, circuit areas, and edge reinforcement areas. By dividing the panel into these separate zones, the reinforcement members can be placed in specific segments (edge areas and non-component regions) without interfering with other functional segments, thus improving durability while managing complexity through spatial organization.
3Weight of moving object
If the display panel is made thinner and lighter, then portability is improved, but the display panel becomes more susceptible to external impacts and cracking
Solution Approach 1:
The patent implements beforehand cushioning by pre-installing reinforcement members in vulnerable edge areas and non-component regions of the display panel. These reinforcement members act as preventive measures against future impact damage, absorbing and distributing stress before cracks can initiate or propagate, thus protecting the thin and light display panel from external impacts without adding significant weight.
Data Source
AI summary
A display apparatus includes: a display panel including a display device to generate a visible ray; an optical functional layer on a surface of the display panel where a visible ray is generated; a circuit on the display panel such that the circuit overlaps with at least an area of an edge of the display panel; and a reinforcement on a surface of the display panel that faces the optical functional layer, to abut the display panel without overlapping with the circuit.