Light Beam Direction Control Element Injection Speed
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Solution Overview
Problem
The existing manufacturing processes for viewing angle control devices are slow in injecting light shielding materials, which affects the efficiency of these devices in controlling the viewing angle.
Innovation Solution
A light beam direction control element is designed with a first and second transparent substrate, light shielding elements, light transmission regions, a resin layer, and a buffer region, where the light shielding elements are injected through a sealed opening unit in the resin layer, enhancing the injection speed by utilizing a buffer region to facilitate the capillary flow of electrophoretic elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If light shielding material is injected using conventional methods, then the viewing angle control function is achieved, but the injection speed is slow
Solution Approach 1:
The injection system is segmented into multiple injection holes distributed across the resin layer, allowing simultaneous injection of light shielding material through multiple pathways. This segmentation of the injection process enables parallel filling of multiple buffer regions, significantly increasing the overall injection speed and manufacturing productivity.
Solution Approach 2:
The buffer region acts as an intermediary structure between the injection holes and the light shielding elements. This intermediate space facilitates rapid capillary flow of the light shielding material from the injection holes to the target areas, mediating the transport process and enhancing injection speed without requiring direct contact between injection holes and the final positioning areas.
2Productivity
If multiple injection holes are provided in the resin layer, then the injection rate increases, but the resin layer structure becomes more complex
Solution Approach 1:
The resin layer is designed to serve multiple functions simultaneously: it provides structural support for the light transmission regions, acts as a sealing medium, contains the buffer regions for material injection, and facilitates the capillary flow of light shielding material through its porous structure. This multi-functionality reduces the need for additional separate components, maintaining structural simplicity while achieving high injection rates through multiple injection holes.
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 configuration significantly increases the injection rate of light shielding materials, improving the manufacturing efficiency and enabling faster switching between narrow and wide viewing field modes.
Implementation Method 1
utilizing a buffer region to facilitate the capillary flow of electrophoretic elements
Implementation Method 2
a light shielding material (e.g., electrophoretic particles or a black ink) is injected in the light shielding pattern
Data Source
AI summary
A light beam direction control element includes: a first transparent substrate; a second transparent substrate which is disposed facing the first transparent substrate; light shielding elements which are disposed between the first transparent substrate and the second transparent substrate; light transmission regions which are disposed between the first transparent substrate and the second transparent substrate and whose sidewalls are surrounded by any of the light shielding elements; a resin layer which is disposed between the first transparent substrate and the second transparent substrate, surrounds an outer circumference of a light transmission region pattern formed by the light transmission regions, and includes a sealed first opening unit; and a first buffer region which is sandwiched between a surface including the first opening unit of the resin layer and the light transmission region pattern, and in which the light shielding elements are injected.