Multi-View Parallax Barrier for 3D Display Ghost Image Elimination
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Solution Overview
Problem
Existing multi-functional liquid crystal parallax barrier devices fail to provide optimized parallax barriers for various 3D applications such as 3D static photos, 3D movies, 3D animations, and 3D games, and do not adequately address different viewing conditions.
Innovation Solution
The integration of a double-view vertical strip parallax barrier and a multi-view slant-and-step parallax barrier on the same horizontal display direction, with optimization of their structures to achieve desired 3D image display through proper voltage control, ensuring consistent optimal viewing distance and increased viewing ranges without ghost images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two independent barrier electrodes are used to achieve multi-functional 3D display, then the device can display different 3D images with different barrier configurations, but the device complexity increases due to multiple electrode layers and insulation structures
Solution Approach 1:
The parallax barrier is divided into two distinct barrier structures: a first parallax barrier with vertical strip-shaped light-transmissive elements and a second parallax barrier with slant-and-step light-transmissive elements. Each barrier is responsible for specific viewing conditions (double-view for photos/movies, multi-view for animations/games), allowing independent optimization of each barrier's geometry and function
Solution Approach 2:
Different regions of the parallax barrier have different light-transmissive element configurations. The first barrier uses vertical strips optimized for double-view, while the second barrier uses slant-and-step structures optimized for multi-view. Each region's structure is locally optimized for its specific viewing condition requirement
2Adaptability or versatility
If the horizontal opening width of light-transmissive elements is increased to expand viewing range, then more viewers can see the 3D image, but ghost images appear due to light leakage from adjacent view zones
Solution Approach 1:
The patent optimizes the horizontal opening width parameter of the light-transmissive elements to a specific range that balances viewing range and ghost image prevention. By carefully selecting this geometric parameter, the design achieves expanded horizontal viewing angles while maintaining clear separation between adjacent view zones through precise optical calculation
3Illumination intensity
If the light-transmissive element width is increased to improve image brightness, then more light passes through the barrier, but the viewing angle and viewing range are reduced
Solution Approach 1:
The patent introduces vertical dimension optimization by adjusting the vertical opening width of the light-transmissive elements. By optimizing both horizontal and vertical dimensions independently, the design compensates for the viewing angle reduction caused by wider elements, achieving improved brightness while maintaining adequate viewing angles through multi-dimensional parameter optimization
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
Enables effective display of double-view and multi-view 3D images with optimized viewing conditions, allowing seamless switching between 2D and 3D modes on a flat panel display, enhancing the viewing experience for different 3D applications.
Implementation Method 1
a multi-functional liquid crystal parallax barrier device, which is a liquid crystal device mainly formed by two parallax barrier structures
Data Source
AI summary
A multi-functional liquid crystal parallax barrier device is a liquid crystal device mainly formed by two parallax barrier structures, namely, a double-view vertical strip parallax barrier and a multi-view slant-and-step parallax barrier, in which the two parallax barriers are disposed in the same horizontal display direction, so as to display a double-view 3D image and a multi-view 3D image, in addition to displaying a 2D image, through the control of an appropriate driving voltage and the use of a flat panel display screen.