Optical Path Control Member with Anchored Sealing Against Moisture
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing optical path control members are prone to moisture penetration through sealing parts, leading to stains and reduced light conversion efficiency due to the interaction of moisture with light conversion materials.
Innovation Solution
The optical path control member features a design with multiple sealing parts, including anchor regions, that extend in different directions to form a tilted accommodating part, providing enhanced protection against moisture ingress and maintaining light conversion efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single sealing part is used to seal the cutting region, then the structure is simple and easy to manufacture, but moisture can penetrate through the sealing part causing stains and reduced light conversion efficiency
Solution Approach 1:
The sealing part is divided into multiple segments (first sealing part, second sealing part, third sealing part, and fourth sealing part) that extend in different directions (first direction and second direction perpendicular to the first direction). These segmented sealing parts collectively seal the cutting region, preventing moisture penetration while maintaining a manageable structure. Each sealing part occupies a different region, creating a comprehensive sealing network around the light conversion material.
Solution Approach 2:
The sealing parts extend not only in the first direction (length direction of the optical path control member) but also in the second direction (width direction perpendicular to the first direction). This two-dimensional extension of sealing parts creates a more comprehensive sealing barrier around the light conversion material, preventing moisture from penetrating through the cutting region from multiple directions.
2Reliability
If the accommodating part is tilted to improve sealing, then moisture penetration is inhibited, but the manufacturing precision requirements increase
Solution Approach 1:
The accommodating part is tilted at a specific angle (e.g., 45 degrees) relative to the first direction, creating a local geometric configuration that enhances sealing effectiveness. This tilting causes the sealing parts to overlap or meet at angles that better block moisture pathways. The light conversion material is disposed within this tilted accommodating part, and the sealing parts are configured to seal both ends of the tilted structure, creating a moisture-resistant environment.
3Reliability
If multiple sealing parts extend in different directions, then moisture penetration is blocked, but the device complexity increases
Solution Approach 1:
The sealing parts serve multiple functions: they seal the cutting region to prevent moisture penetration, provide structural support for the tilted accommodating part, and create a comprehensive barrier network. The first and second sealing parts extend in the first direction to seal the lengthwise ends, while the third and fourth sealing parts extend in the second direction to seal the widthwise ends, creating a multi-functional sealing system that addresses both moisture protection and structural integrity.
Data Source
AI summary
An optical path control member according to an embodiment includes a first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed under the second substrate; a light conversion unit disposed between the first electrode and the second electrode and including a plurality of accommodating parts in which a light conversion material is disposed; a first sealing part and a second sealing part formed in a cutting region formed by cutting the second substrate, the second electrode, and the light conversion unit and disposed extending in a first direction; and a third sealing part and a fourth sealing part formed in the cutting region formed by cutting the second substrate, the second electrode, and the light conversion unit, and disposed extending in a second direction different from the first direction, and wherein at least one of the third sealing part and the fourth sealing part includes a sealing region disposed inside the cutting region and an anchor region disposed inside the accommodating part.