Light Path Control Structure With Extended Seal Against Material Leakage
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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 inadequate sealing.
Innovation Solution
A light path control member design featuring a first substrate, first and second electrodes, and a light conversion part with partition walls, receiving portions, and a sealing portion that extends into the receiving portion, increasing adhesive contact area to prevent leakage and impurity penetration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the sealing portion is removed to enable light conversion material injection, then the light conversion material can be filled into the receiving portion, but the reliability and driving characteristics deteriorate due to leakage
Solution Approach 1:
The sealing portion is designed to extend into the receiving portion before the light conversion material is fully injected and sealed. This preliminary extension creates a pre-formed seal that prevents leakage while still allowing the injection process to complete, thus maintaining both manufacturability and reliability.
Solution Approach 2:
The sealing portion extends not only along the length of the receiving portion but also inward into its inner region, utilizing the depth dimension. This three-dimensional extension increases the sealing contact area and ensures comprehensive sealing without compromising the injection capability.
2Reliability
If the sealing portion is made longer to prevent leakage, then the adhesive contact area increases, but the device complexity increases
Solution Approach 1:
The sealing portion is integrated with the receiving portion structure, merging the sealing function into the existing component geometry. This integration achieves enhanced sealing without adding separate complex sealing mechanisms, thus improving reliability while controlling device complexity.
Solution Approach 2:
The sealing portion utilizes the depth dimension by extending into the inner region of the receiving portion. This vertical extension increases the adhesive contact area and sealing effectiveness without requiring additional horizontal components, thereby avoiding increased device complexity.
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 design enhances the adhesive properties of the sealing portion, effectively inhibiting light conversion material leakage and external impurity ingress, thereby improving reliability and driving characteristics.
Implementation Method 1
a light conversion part disposed between the first electrode and the second electrode, the light conversion part includes a plurality of partition wall portions, a plurality of receiving portions, and a base portion, a light conversion material is disposed in the receiving portion
Data Source
AI summary
A light 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.