Stereo Display Polarizer Modulator for 3D Mode Switching
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Solution Overview
Problem
Current stereo displays are unable to provide both 3D portrait and 3D landscape modes simultaneously, limiting their functionality compared to 2D display capabilities.
Innovation Solution
A stereo display system comprising a display panel, a first polarizer modulator, and a second polarizer modulator, with specific lens sets and birefringent materials, allows for the sequential polarization and refractive manipulation of light beams to enable 2D, 3D portrait, and 3D landscape display modes by controlling the polarization direction and refractive indices through external fields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a stereo display uses fixed optical grating for auto-stereoscopic display, then the display can provide 3D effect with naked eye viewing, but the display cannot simultaneously provide both 3D portrait and 3D landscape modes
Solution Approach 1:
The patent employs switchable optical gratings that can be dynamically reconfigured between different orientations (vertical and horizontal) to enable transition between portrait and landscape 3D modes. The optical grating's orientation is changed from fixed to dynamic, allowing the system to adapt to different display modes on demand.
Solution Approach 2:
The patent designs a unified optical system that can perform multiple functions: auto-stereoscopic display in both portrait and landscape modes, and stereoscopic display modes. By using switchable optical gratings and configurable image sources, a single display system achieves versatility across multiple 3D display modes without requiring separate dedicated systems for each mode.
2Adaptability or versatility
If a display provides multiple display modes (portrait and landscape), then the display adaptability is improved, but the optical system complexity increases
Solution Approach 1:
The patent divides the optical system into distinct functional modules: first polarizer modulator, second polarizer modulator, and switchable optical gratings. Each module has a specific function and can be independently controlled. This segmentation allows complex functionality to be achieved through coordinated simple modules rather than a monolithic complex system.
Solution Approach 2:
The patent uses dynamically controllable polarizer modulators that can change their polarization states and optical properties based on the desired display mode. The liquid crystal materials in the polarizer modulators can be electrically controlled to switch between different optical configurations, enabling mode transitions without physical reconfiguration of the entire system.
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 the simultaneous display of 2D and 3D portrait and landscape modes by effectively rotating and refracting light beams, enhancing the display's capability beyond traditional 2D limitations.
Implementation Method 1
The second polarizer modulator includes a plurality of lens structures, a polarization material, and a birefringent material. The birefringent material is filled in the lens structures. When an image in a 3D portrait display mode is to be displayed, the light beam having the second polarizing direction is rotated into the light beam having the first polarizing direction after passing through the second polarizer modulator, wherein the light beam having the first polarizing direction is refracted when passing through the birefringent material
Implementation Method 2
When a 2D image is to be displayed, a light beam emitted by the display panel and having a first polarizing direction is rotated into a light beam having a second polarizing direction after passing through the first polarizer modulator
Data Source
AI summary
A stereo display includes a display panel, a first polarizer modulator disposed above the display panel, and a second polarizer modulator disposed above the first polarizer modulator. The second polarizer modulator includes a first lens set, a second lens set opposite to the first lens set, a polarization material, and a birefringent material. An angle between an extending direction of the first lens set and an extending direction of the second lens set is not 0 or 180 degrees. The polarization material is between the first lens set and the second lens set. The birefringent material is disposed in at least one of the first lens set and the second lens set.