Dynamic Barrier Panel for 3D Display Viewing Angle
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing three-dimensional image display devices using parallax barriers have limited viewing angles, requiring the barrier to be fixed, which restricts the angular range for a viewer to experience a three-dimensional image effectively, typically allowing only about 5° left and right angles.
Innovation Solution
A barrier panel with upper and lower substrates and a liquid crystal layer, featuring alternately disposed electrodes, is controlled by a system that measures viewer eye positions and adjusts the barrier pitch dynamically, allowing for finer control and continuous shifting to accommodate viewer movement, thereby enhancing the viewing angle and image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed parallax barrier is used, then the device structure is simple, but the viewing angle is limited to about 5° left and right
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed parallax barrier into a dynamically adjustable one. The barrier panel's pitch is made variable through liquid crystal material control, allowing the barrier to adapt its configuration based on viewer position. This enables the viewing angle to be expanded from the fixed 5° to a much wider range while maintaining system controllability through electrical signals.
Solution Approach 2:
The patent implements parameter changes by modifying the pitch parameter of the parallax barrier dynamically. By changing the liquid crystal material's optical properties through applied voltages, the barrier pitch can be adjusted in real-time according to the viewer's eye position, thereby resolving the contradiction between fixed structure and adaptable viewing angle.
2Manufacturing precision
If the barrier pitch is fixed, then the manufacturing process is simple, but the image quality deteriorates when the viewer moves
Solution Approach 1:
The patent employs feedback by using eye position detection to determine the appropriate barrier pitch, and then adjusting the liquid crystal material accordingly. This closed-loop control ensures that the barrier pitch continuously matches the viewer's position, maintaining high image quality and three-dimensional effect even when the viewer moves, thus resolving the contradiction between manufacturing simplicity and image quality reliability.
3Ease of operation
If a liquid crystal layer with alternately disposed electrodes is used, then the barrier can be continuously shifted to match eye positions, but the device complexity increases
Solution Approach 1:
The patent replaces mechanical adjustment mechanisms with an electric field-based control system. Instead of physically moving the barrier panel through mechanical means, the liquid crystal material's optical properties are modified through applied voltages from alternately disposed electrodes. This substitution enables continuous and precise barrier pitch adjustment without complex mechanical structures, resolving the contradiction between ease of operation and 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
This solution enables a wider viewing angle and improved picture quality by allowing the barrier to be smoothly and continuously shifted to match the viewer's eye positions, enabling a natural three-dimensional image experience without the limitations of fixed barriers.
Implementation Method 1
a liquid crystal layer interposed between the upper and lower substrates
Implementation Method 2
a plurality of upper electrodes formed parallel to one another in a direction on the upper substrate; and a plurality of lower electrodes formed on the lower substrate in another direction parallel to the upper electrode, wherein the upper and lower electrodes are alternately disposed
Data Source
AI summary
A barrier panel is disclosed which includes: upper and lower substrates opposite to each other; a liquid crystal layer interposed between the upper and lower substrates; a plurality of upper electrodes formed parallel to one another in a direction on the upper substrate; and a plurality of lower electrodes formed on the lower substrate in another direction parallel to the upper electrode, wherein the upper and lower electrodes are alternately disposed.