Naked-Eye 3D Display Liquid Crystal Grating Adaptation
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Solution Overview
Problem
Existing naked-eye 3D display devices suffer from image crosstalk and inability to implement anti-peeping when the viewer's position changes, as they are designed for fixed viewing positions and cannot adapt to varying pupil distances and positions.
Innovation Solution
A naked-eye 3D display device comprising a display panel, a liquid crystal grating, and a processor, which collects current viewing information including position and pupil distance data to adjust the light transmitting region of the liquid crystal grating and output picture, ensuring no crosstalk and maintaining a better 3D effect even when the viewer's position changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the viewing position is fixed in existing naked-eye 3D display devices, then the device structure can be simplified, but the device cannot adapt when the viewer's position changes, causing image crosstalk and loss of anti-peeping function
Solution Approach 1:
The patent applies the dynamics principle by making the light transmitting region of the liquid crystal grating adjustable and changeable based on real-time viewer position detection. The system dynamically adapts the optical parameters (width and position of light transmitting regions) according to the detected viewer position and pupil distance, transforming a static fixed-viewing-device into a dynamic adaptive system that maintains 3D effect and anti-peeping function across different viewing positions.
Solution Approach 2:
The patent implements feedback by using an image collector to detect the viewer's current position and pupil distance, then feeding this information back to the processor. The processor uses this feedback to calculate and adjust the appropriate light transmitting region parameters for the liquid crystal grating, creating a closed-loop control system that continuously adapts to viewer position changes and maintains optimal 3D display performance.
2Reliability
If the light transmitting region of the liquid crystal grating is adjusted in real-time, then image crosstalk is prevented and anti-peeping is maintained, but the device complexity increases
Solution Approach 1:
The patent implements feedback by using an image collector to detect the viewer's current position and pupil distance, then feeding this information back to the processor. The processor uses this feedback to calculate and adjust the appropriate light transmitting region parameters for the liquid crystal grating, creating a closed-loop control system that continuously adapts to viewer position changes and maintains optimal 3D display performance.
Solution Approach 2:
The system applies self-service by automatically detecting viewer position and pupil distance, then autonomously calculating and adjusting the light transmitting region parameters without requiring manual intervention. The processor self-regulates the liquid crystal grating settings based on the detected parameters, enabling the system to maintain reliable 3D display and anti-peeping function adaptively.
3Reliability
If stereoscopic spectacles are used to achieve stereoscopic effect, then the 3D viewing effect can be obtained, but viewers with different face shapes cannot obtain better user experience and those who already wear spectacles need to overlap two pairs
Solution Approach 1:
The patent applies the taking out principle by removing the requirement for external stereoscopic spectacles and integrating the stereoscopic display function directly into the display device itself. The liquid crystal grating embedded in the display panel performs the light separation function that would otherwise require separate glasses, eliminating the need for viewers to wear additional accessories or overlap multiple pairs of spectacles.
Solution Approach 2:
The patent implements universality by creating a naked-eye 3D display system that works for all viewers regardless of face shape or existing spectacles. The system uses universal parameters (pupil distance and viewing position) that can be detected and adapted for any viewer, making the stereoscopic function accessible to everyone without requiring viewer-specific customization or additional equipment.
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
The solution prevents image crosstalk and enhances the 3D viewing experience by dynamically adjusting the light transmitting region based on real-time viewer position and pupil distance data, allowing for effective anti-peeping between viewers.
Implementation Method 1
the liquid crystal grating, provided between the display panel and a viewer, is configured to separate light from the display panel
Data Source
AI summary
A naked-eye three-dimensional display device includes a display panel, a liquid crystal grating, a processor and an image collector, wherein, the image collector is configured to obtain first current viewing information and second current viewing information, and send the same to the processor; the processor is configured to receive and store the first and second current viewing information, adjust a width and/or a position of a light transmitting region of the liquid crystal grating according to the first current viewing information, and adjust an output picture of the display panel, according to the second current, viewing information and the width and/or the position of the light transmitting region of the liquid crystal grating adjusted.