Light Path Control Member Pattern Electrodes Charge Accumulation
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Solution Overview
Problem
The existing light path control members experience reduced driving characteristics and light conversion efficiency due to charge accumulation on the partition wall portion, which hinders the movement of light conversion particles and leads to decreased performance over repeated use.
Innovation Solution
The light path control member incorporates a design with pattern electrodes spaced apart to minimize charge interference, where the electrodes overlap primarily with the accommodating portion rather than the partition wall portion, reducing charge accumulation and enhancing particle movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If continuous electrodes are used in the light path control member, then electrical conductivity is improved, but charge accumulation on the partition wall portion increases which hinders particle movement
Solution Approach 1:
The continuous electrode is divided into multiple separate pattern electrodes that are spaced apart from each other. This segmentation prevents charge accumulation on the partition wall portions while maintaining sufficient electrical conductivity for driving the light path control member. The pattern electrodes are positioned to overlap primarily with the accommodating portions rather than the partition wall portions, thereby reducing harmful charge effects.
Solution Approach 2:
The electrode structure is designed with different properties in different regions: the pattern electrodes are positioned to provide electrical conductivity where needed (overlapping accommodating portions) while avoiding regions where charge accumulation would be harmful (partition wall portions). This local differentiation optimizes both conductivity and reliability.
2Power
If electrodes overlap with partition wall portion, then electrical connection is improved, but charge accumulation on partition wall surface increases which reduces particle movement speed
Solution Approach 1:
The electrode is segmented into pattern electrodes that are strategically positioned to overlap with accommodating portions where light conversion particles are located, rather than overlapping with partition wall portions. This segmentation enables electrical connection for particle control while avoiding charge accumulation on partition walls that would hinder particle movement speed.
Solution Approach 2:
The electrode design transitions from a continuous two-dimensional sheet to a patterned arrangement where the electrodes extend in one direction (e.g., horizontal) while being spaced apart in the perpendicular direction (e.g., vertical). This dimensional change allows selective overlapping with accommodating portions while minimizing contact with partition wall portions.
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 driving characteristics and longevity of the light path control member by minimizing charge interference and maintaining efficient light conversion, even with repeated use.
Implementation Method 1
The light conversion unit includes a plurality of partition wall portions, a plurality of accommodating portions, and a base portion, the accommodating portion extends in the second direction, the first electrode includes a plurality of first pattern electrodes extending in the second direction and spaced apart from each other, and the first pattern electrode overlaps the accommodating portion.
Data Source
AI summary
A light path control member according to an embodiment comprises: a first substrate by which a first direction and a second direction are defined; 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 unit disposed between the first electrode and the second electrode, wherein the light conversion unit comprises: a plurality of partitions; a plurality of accommodation units; and a base, wherein the accommodation units extend in the second direction, the first electrode includes a plurality of first pattern electrodes extending in the second direction and spaced apart from each other, and the first pattern electrodes overlap the accommodation units.