Light Path Control Member Sealing for Leakage Resistance
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Solution Overview
Problem
The reliability and driving characteristics of light path control members are compromised due to leakage of light conversion material and penetration of external impurities through the sealing portion.
Innovation Solution
The sealing portion is bent towards the inside of the receiving portion to increase its contact area, enhancing adhesive properties and preventing leakage and impurity penetration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sealing portion is made simple and straight, then the device complexity is reduced, but the adhesive area is insufficient causing leakage of light conversion material
Solution Approach 1:
The sealing portion is designed with a bent shape instead of a straight configuration. Specifically, the sealing portion includes a first bent portion and a second bent portion that extend toward the inside of the receiving portion, creating a curved path that increases the contact area with the light conversion material while maintaining structural integrity and preventing leakage.
Solution Approach 2:
The sealing portion extends not only in the planar direction but also in the thickness direction of the receiving portion. By bending toward the inside of the receiving portion, the sealing portion utilizes the third dimension (depth/thickness) to maximize the adhesive area, transforming a two-dimensional sealing approach into a three-dimensional solution.
2Reliability
If the sealing portion area is increased by bending, then the adhesive properties improve, but the manufacturing complexity increases
Solution Approach 1:
The bending radius and angle of the sealing portion are optimized to balance adhesive area increase with manufacturability. The first bent portion and second bent portion are designed with specific curvature parameters that maximize contact area while remaining compatible with standard manufacturing processes such as injection molding or extrusion.
3Reliability
If the sealing portion extends further into the receiving portion, then leakage prevention improves, but the volume of the receiving portion is reduced
Solution Approach 1:
The sealing portion is divided into multiple segments: a first bent portion and a second bent portion, rather than a single continuous bend. This segmentation allows the sealing material to follow an optimized path that maximizes adhesive area while minimizing the volume occupied within the receiving portion, as each bent portion can be strategically positioned to seal critical areas.
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
This design improves the reliability and driving characteristics of the light path control member by effectively sealing the light conversion material and preventing external impurities from entering the receiving portion.
Implementation Method 1
The sealing portion for sealing the light conversion material inside the receiving portion is bent toward the inside of the receiving portion, a contact area of the sealing portion may be increased. Accordingly, since the adhesive area of the sealing portion is increased, the adhesive properties of the sealing portion may be improved.
Data Source
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AI summary
Alight path control member according to an embodiment comprises: 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; and a light conversion part disposed between the first electrode and the second electrode, wherein: the light conversion part comprises a plurality of partition wall portions, a plurality of receiving portions, and a base portion; a light conversion material is disposed in the receiving portions; the light conversion part includes a first sealing portion which seals the light conversion material; the first sealing portion extends in a direction from one end to the other end thereof; and the other end of the first sealing portion is arranged to extend into the inner area of the receiving portions..