Light Route Control Member With Segmented Cells for Uniform Dispersion
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Solution Overview
Problem
Existing light route control members face challenges in manufacturing efficiency and achieving improved front luminance and side shielding effects, particularly due to difficulties in evenly dispensing charged particles and increased process time with larger receiving parts.
Innovation Solution
The light route control member is designed with a receiving part having a predetermined size and intaglio shape, allowing for easy filling of dispersion through methods like squeezing or screen printing, and includes separation parts to improve frontal luminance and control side shielding based on environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the receiving part size is increased to reduce the number of parts, then the manufacturing complexity is reduced, but the process time increases and it becomes difficult to inject dispersion evenly
Solution Approach 1:
The receiving part is divided into multiple sub-receiving parts arranged in an array. Each sub-receiving part can be filled with dispersion independently and simultaneously, which reduces the overall process time compared to filling one large receiving part sequentially. The segmentation allows for parallel processing while maintaining manageable dimensions for each individual sub-receiving part.
2Illumination intensity
If the receiving part size is increased to improve light transmission, then the front luminance is improved, but the dispersion injection becomes uneven and slower
Solution Approach 1:
The receiving part is segmented into multiple sub-receiving parts that can be filled simultaneously. This segmentation maintains uniform dispersion injection in each small unit while achieving overall high light transmission through the combined area of multiple sub-receiving parts.
Solution Approach 2:
Instead of increasing the size of a single receiving part in two dimensions, the invention transitions to a multi-dimensional array of smaller sub-receiving parts. This dimensional reorganization allows the system to achieve equivalent or greater total light transmission area while maintaining manageable injection dimensions for each individual unit.
3Device complexity
If the receiving part is made larger to reduce part count, then the device complexity is reduced, but the adhesive material may contact dispersion causing degradation
Solution Approach 1:
The receiving part is divided into multiple small sub-receiving parts with individual sealing structures. This segmentation allows each sub-receiving part to be independently sealed, preventing adhesive material from contacting the dispersion regardless of the overall device size. The modular approach maintains reliability while managing complexity.
4Device complexity
If the receiving part size is increased, then fewer parts are needed, but the side shielding effect becomes difficult to control
Solution Approach 1:
Each sub-receiving part is equipped with its own independent light-shielding film that can be controlled separately. This local quality approach allows precise control of side shielding effects in each individual unit, enabling flexible configuration to achieve desired overall shielding patterns while using multiple smaller parts instead of one large part.
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 enhances manufacturing efficiency, improves frontal luminance, and prevents adhesive degradation while minimizing moiré phenomena, ensuring reliable performance and visibility.
Implementation Method 1
injecting the dispersion into the receiving part through a capillary phenomenon
Data Source
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AI summary
An optical path control member according to an embodiment comprises: a first substrate; a first electrode arranged on the upper surface of the first substrate; a second substrate arranged on top of the first substrate; a second electrode arranged on the lower surface of the second substrate; and an optical conversion unit which is arranged between the first electrode and the second electrode and which defines a first direction and a second direction, wherein the optical conversion unit comprises a partition part and an accommodation part that are alternately arranged in the first direction, the accommodation part includes a plurality of cells arranged to be spaced in the second direction, at least one of the cells includes a first inner side surface and a second inner side surface that are connected to each other, and the first inner side surface and/or the second inner side surface extends in a direction other than the first and second directions.