Light Guide Plate Non-Parallel Deflecting Lines
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Solution Overview
Problem
Existing light guide plates face challenges in displaying stereoscopic images close to being parallel to the incident surface, as they require high density of deflecting parts, leading to reduced transparency and difficulty in maintaining continuous line images.
Innovation Solution
The light guide plate is designed with deflecting parts arranged on non-parallel lines, allowing for wider intervals and reduced density, enabling high transparency while maintaining visibility of stereoscopic images parallel to the incident surface, and includes features like branching points and merging points for enhanced image expression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the density of deflecting parts is increased to display stereoscopic images close to being parallel to the incident surface, then the visibility of stereoscopic images is improved, but the transparency of the light guide plate decreases
Solution Approach 1:
The patent applies dimensionality change by arranging deflecting parts on non-parallel arrangement lines (including curved lines) instead of only parallel straight lines. This allows the optical path to utilize three-dimensional space more effectively, enabling stereoscopic images parallel to the incident surface to be displayed with reduced deflecting part density while maintaining visibility, thus resolving the contradiction between image visibility and plate transparency.
2Measurement precision
If the density of deflecting parts is increased to display stereoscopic images close to being parallel to the incident surface, then the visibility of stereoscopic images is improved, but the continuity of line images deteriorates
Solution Approach 1:
By introducing curved arrangement lines and non-parallel configuration, the patent enables continuous line images to be formed through spatial redistribution of deflecting parts. The curved lines provide smooth transitions that maintain image continuity while reducing local density requirements, allowing stereoscopic images parallel to the incident surface to be displayed without breaking line continuity.
3Ease of manufacture
If parallel arrangement lines are used, then the manufacturing is simplified, but the ability to display stereoscopic images parallel to the incident surface is limited
Solution Approach 1:
The patent segments the arrangement lines into multiple types: parallel straight lines for general areas and non-parallel curved lines for specific regions requiring stereoscopic images parallel to the incident surface. This segmentation allows the system to maintain manufacturing simplicity in most areas while providing enhanced display capability where needed, resolving the contradiction between ease of manufacture and display versatility.
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 allows for clear and transparent display of stereoscopic images close to being parallel to the incident surface, improving visibility and enabling dynamic image movements and expressions by adjusting the light source position.
Implementation Method 1
the deflecting parts each having an inclined surface that reflects the light, which is guided while being totally reflected inside the light guide plate
Implementation Method 2
the light guide plate includes a plurality of deflecting parts provided in rows parallel to the incident surface, the deflecting parts each having an inclined surface that reflects the light, which is guided while being totally reflected inside the light guide plate
Data Source
AI summary
A light guide plate includes an incident surface by which a light from a light source enters, an exit surface from which the light exits, and light deflecting parts that cause the light entering from the incident surface and guided to exit from the exit surface. The light deflecting parts are arranged on an arrangement line which is a linear arrangement region. At least one arrangement line includes a region that is not parallel to the incident surface.