Display Device Align Key Laser Beam Through Portion Sealing Strength
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Solution Overview
Problem
The structural strength of the sealing portion in display devices is compromised when the width is reduced to minimize dead space, leading to weakened areas and potential damage, especially with the introduction of align keys intended to reduce light leakage.
Innovation Solution
Incorporating an align key with laser beam through portions that increase the irradiation of thermal energy onto the sealing portion, formed between intermittent lines or dots, to enhance the mechanical strength and heat resistance of the sealing portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the width of the sealing portion is reduced to minimize dead space, then the compactness of the display device is improved, but the mechanical strength of the sealing portion deteriorates
Solution Approach 1:
The align key introduces localized reinforcement at critical positions (corners and edges) where the sealing portion is most vulnerable. By concentrating additional material and thermal energy at these specific locations rather than uniformly increasing the entire sealing width, the design maintains compactness while strengthening weak points.
Solution Approach 2:
The sealing portion combines the base sealing material with glass frit and additional reinforcing materials in the align key regions. This composite structure provides both the sealing function and enhanced mechanical strength at critical locations, resolving the contradiction between compact size and structural integrity.
2Area of stationary object
If the width of the sealing portion is reduced to minimize dead space, then the compactness of the display device is improved, but the heat resistance of the sealing portion deteriorates
Solution Approach 1:
The laser beam through portions are strategically positioned at critical sealing locations to deliver concentrated thermal energy where needed. This localized heating approach strengthens the sealing portion's heat resistance at vulnerable points without requiring an increase in overall sealing width.
Solution Approach 2:
The sealing process utilizes phase transition of the glass frit material, heating it to melting point and then cooling to form a strong, heat-resistant seal. The align key ensures sufficient thermal energy is delivered to achieve complete phase transition and proper sealing even in reduced-width configurations.
3Object-affected harmful factors
If an align key is introduced to reduce light leakage, then the light sealing performance is improved, but the structural complexity of the device increases
Solution Approach 1:
The align key serves multiple functions simultaneously: it acts as a light seal to prevent light leakage, provides mechanical reinforcement to strengthen the sealing portion, and enables precise alignment during assembly. By combining multiple functions into a single structure, the design improves light sealing without proportionally increasing complexity.
Solution Approach 2:
The align key merges the light sealing function with the mechanical reinforcement function and alignment function into a single integrated structure. This consolidation prevents light leakage while strengthening the sealing portion, avoiding the need for separate components and thus limiting the increase in structural complexity.
4Object-affected harmful factors
If an align key is introduced to reduce light leakage, then the light sealing performance is improved, but the manufacturing complexity increases
Solution Approach 1:
The align key is formed as an integrated part of the sealing portion structure before final assembly, with laser beam through portions pre-positioned at critical locations. This preliminary formation simplifies manufacturing by eliminating the need for separate alignment and assembly steps, reducing overall manufacturing complexity despite the added light sealing functionality.
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 increased thermal energy applied to the sealing portion improves its mechanical strength and reliability, addressing the weakness caused by reduced width while maintaining a compact design.
Implementation Method 1
the at least one laser beam through portion can include at least one space formed in the align key
Implementation Method 2
the increased thermal energy applied to the sealing portion improves its mechanical strength and reliability
Data Source
AI summary
A display device is disclosed. In one aspect, the display device comprises a display panel, a window cover, at least one align key and a sealing portion. The display panel includes a substrate, a display unit formed over the substrate, and an encapsulation portion formed over the display unit. The window cover is formed over the display panel. The at least one align key is formed on the encapsulation portion and configured to align the display panel with the window cover. The sealing portion is formed between the substrate and the encapsulation portion, wherein the align key has at least one laser beam through portion passing through the encapsulation portion and is connected to the sealing portion.