Viewing Glasses with Adjustable Polarization for 3D Displays
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Solution Overview
Problem
Current 3D shutter glasses are limited by the lack of a unified standard for polarization direction in 3D display devices, requiring multiple types to accommodate different devices, leading to increased production costs and unnecessary purchases for users.
Innovation Solution
A pair of viewing glasses with an image beam adjustment method that automatically adjusts the polarization direction of the image beam based on detected brightness or transmittance, allowing compatibility with various polarization directions of 3D display devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If shutter glasses are designed with a fixed polarization direction to complement a specific 3D display device, then the 3D imaging effect is achieved, but the viewing glasses cannot be used with display devices having different polarization directions
Solution Approach 1:
The patent applies the dynamics principle by making the polarization direction of the viewing glasses adjustable rather than fixed. The liquid crystal layer can be controlled to rotate the polarization direction dynamically, allowing a single pair of viewing glasses to adapt to different polarization directions of 3D display devices, thereby eliminating the need for multiple fixed types.
Solution Approach 2:
The patent applies the parameter changes principle by changing the polarization direction parameter of the viewing glasses through voltage control of the liquid crystal layer. By adjusting the polarization angle parameter, the viewing glasses can match different polarization directions of display devices, achieving versatility without increasing device complexity.
2Adaptability or versatility
If multiple types of viewing glasses are produced to accommodate different polarization directions, then compatibility with various 3D display devices is achieved, but production costs increase
Solution Approach 1:
The patent applies the universality principle by designing a single type of viewing glass with adjustable polarization direction that can serve multiple functions across different 3D display devices. Instead of manufacturing multiple specialized types, one universal design with voltage-controlled liquid crystal layer can accommodate various polarization directions, significantly reducing production costs.
Solution Approach 2:
The patent applies parameter changes to enable a single viewing glass design to function with different polarization directions by electronically adjusting the liquid crystal layer orientation. This eliminates the need for manufacturing multiple physical types, directly reducing production costs while maintaining broad compatibility.
3Adaptability or versatility
If users purchase multiple types of viewing glasses to match different display devices, then compatibility is achieved, but unnecessary purchases are made
Solution Approach 1:
The patent applies universality by creating a single viewing glass type that can function with multiple 3D display devices having different polarization directions. The voltage-controlled liquid crystal layer enables one pair of glasses to adapt to various devices, eliminating the need for users to purchase multiple specialized pairs.
Solution Approach 2:
The patent applies dynamics by enabling the viewing glasses to change their polarization characteristic dynamically through voltage control. This dynamic adjustment allows a single pair of glasses to adapt to different display devices, preventing users from needing to buy multiple static types.
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 viewing glasses to be compatible with different 3D display devices, reducing production costs and eliminating the need for multiple purchases while maintaining effective 3D imaging.
Implementation Method 1
The liquid crystal layer is interposed between the front and back polarizers. Moreover, the liquid crystal layer is controlled by an operating voltage to alter the polarization direction of the image beam
Implementation Method 2
A polarization axis direction of the front polarizer is parallel to a polarization direction of an image beam emitted from the 3D display device, and the polarization axes of the front and back polarizers are orthogonal
Data Source
AI summary
A pair of viewing glasses and an image beam adjustment method are provided, wherein the viewing glasses includes a polarizer. The adjustment method includes the following steps. Detect the transmittance of the image beam from the screen passing through the glasses. Generate an operating signal according to the operating period of the viewing glasses, a corresponding value corresponding to the operating period of the viewing glasses, and the transmittance of the image beam, so as to adjust the polarization direction of the image beam before passing through the polarizer. Maintain the operating signal during the operating period of the viewing glasses.