Single-LCD Stereoscopic Display Using Electro-Optical Polarization
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Solution Overview
Problem
Conventional stereoscopic displays either require complex and bulky dual displays or active eyewear, which can cause observable flicker due to synchronization errors, making them undesirable for providing high-quality 3D images without the need for additional equipment.
Innovation Solution
A single-panel stereoscopic display system utilizing a display panel with interlaced pixel rows, a polarization layer, and an electro-optical panel that alternates polarization states between sub-frames to ensure full-resolution 3D imaging without active eyewear, using a processor to coordinate the display of left and right image channels across pixel rows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two separate displays are used to provide stereoscopic images to each eye, then the stereoscopic image quality is improved, but the device complexity and size increase
Solution Approach 1:
The patent merges two separate display systems into a single display panel that uses an electro-optical layer to modulate light polarization. Instead of using two independent displays, a single display panel with interlaced pixel rows displays both left and right eye images simultaneously, while the electro-optical layer separates the polarized light to each eye, thereby reducing device complexity while maintaining stereoscopic image quality
Solution Approach 2:
The patent segments the display into interlaced pixel rows where odd rows display one eye's image and even rows display the other eye's image. This segmentation allows a single display to carry multiple stereoscopic channels that are then separated by the electro-optical layer, resolving the contradiction between using separate displays and using a single display
2Device complexity
If active eyewear is used with a single display to provide stereoscopic images, then the device complexity is reduced, but observable flicker occurs due to synchronization errors
Solution Approach 1:
The system eliminates the need for active eyewear with electronic synchronization by using a passive electro-optical layer that passively separates polarized light. The display panel itself generates the polarized light through its interlaced pixel structure, and the electro-optical layer automatically separates the light paths without requiring external synchronization signals, thereby eliminating flicker caused by synchronization errors
Solution Approach 2:
The patent uses periodic alternation of polarized light states in interlaced pixel rows to encode left and right eye images. By systematically alternating the polarization states in a periodic pattern across the display, the system ensures that each eye receives the correct image without requiring active synchronization, thus eliminating flicker while reducing device complexity
3Volume of moving object
If a single display with active eyewear is used for stereoscopic imaging, then the size is reduced, but viewer fatigue increases due to observable flicker
Solution Approach 1:
The patent converts the potential harm of flicker into a benefit by using the electro-optical layer to passively and continuously separate polarized light without interruption. Instead of rapidly switching images as in active shutter systems (which causes flicker), the system maintains continuous image display with constant polarization separation, transforming the single-display constraint into an advantage that eliminates flicker-related viewer fatigue
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 system achieves full-resolution 3D imaging without flicker, reducing viewer fatigue and eliminating the need for active eyewear by employing an electro-optical panel to manage polarization states and synchronize image display across pixel rows.
Implementation Method 1
an electro-optical panel
Data Source
AI summary
A stereoscopic display for displaying 3D images in the form of a stereo image pair. The stereoscopic display may include, but is not limited to, a display panel, a polarization layer, and an electro-optical panel. The display panel may include at least a first pixel and a second pixel. The polarization layer may include a first portion associated with the first pixel and a second portion associated with the second pixel.