3D Spectacle Lens Using Guest-Host Liquid Crystal for Wide Viewing Angle
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Solution Overview
Problem
Conventional 3D glasses with shutter-type technology restrict viewing angles, limiting the quality of 3D images to horizontal views only, as they require precise alignment of polarizers with the display screen, leading to reduced image quality when viewed inclined.
Innovation Solution
A 3D spectacle lens using a guest-host liquid crystal layer with dichroic dye molecules, where an electric field controls the deflection of liquid crystal and dichroic dye molecules to manage light transmission based on polarized light orientation, allowing for adjustable light passage regardless of viewing angle without the need for polarizers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If shutter-type 3D glasses use polarizers with fixed alignment to control light transmission, then the structure is simple and manufacturing is easy, but the viewing angle is limited and image quality deteriorates when viewed inclined
Solution Approach 1:
The patent applies the dynamics principle by replacing fixed polarizer alignment with dynamically controllable liquid crystal molecules that can adjust their orientation based on viewing angle. The liquid crystal molecules in the guest-host layer can be electrically controlled to change their alignment, thereby adapting the light transmission characteristics to different viewing angles, which resolves the contradiction between simple structure and viewing angle adaptability
Solution Approach 2:
The patent applies parameter changes by modifying the optical parameters of the lens through voltage control. By changing the voltage applied to the liquid crystal layer, the orientation of liquid crystal molecules changes, which alters the polarization state and light transmission properties. This enables the same lens structure to provide optimal performance across multiple viewing angles by dynamically adjusting its optical parameters
2Manufacturing precision
If polarizers are aligned horizontally to match display screen, then horizontal viewing quality is good, but inclined viewing quality is reduced
Solution Approach 1:
The patent replaces static polarizer alignment with dynamic liquid crystal molecule orientation control. Instead of relying on precise fixed alignment that only works for horizontal viewing, the liquid crystal molecules can be electrically controlled to adjust their orientation, maintaining reliable image quality across different viewing angles by dynamically adapting to the viewing direction
Solution Approach 2:
The patent makes the lens universal for multiple viewing angles by incorporating liquid crystal material that can adapt its optical properties. The same lens structure can serve both horizontal and inclined viewing scenarios by changing its molecular orientation, eliminating the need for angle-specific alignment and providing consistent image quality across different viewing conditions
3Ease of operation
If liquid crystal molecules are controlled to deflect for light transmission switching, then the light-passing and non-light-passing states are achieved, but the viewing angle flexibility is lost
Solution Approach 1:
The patent uses composite materials by combining liquid crystal molecules with dichroic dye molecules in a guest-host system. This composite structure allows the liquid crystal molecules to control light transmission while the dichroic dye molecules provide angle-independent optical absorption characteristics, thereby maintaining both ease of operation for light transmission control and adaptability for different viewing angles
Solution Approach 2:
The patent introduces the guest-host liquid crystal system as an intermediary between the control voltage and the light transmission function. The liquid crystal molecules act as mediators that can be controlled by voltage to adjust their orientation, which in turn controls the light transmission state. This intermediary mechanism enables both operational control and viewing angle flexibility to coexist
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
Ensures high transmittance and comfortable viewing by maintaining image quality across various angles, eliminating the need for polarizers and allowing 3D glasses to function effectively in both light-passing and non-light-passing states regardless of the viewing position.
Implementation Method 1
a guest-host liquid crystal layer arranged between the first substrate and the second substrate, the guest-host liquid crystal layer including liquid crystal molecules and dichroic dye molecules
Implementation Method 2
applying a driving electric field to the guest-host liquid crystal layer such that the liquid crystal molecules in the guest-host liquid crystal layer drive the dichroic dye molecules in the guest-host liquid crystal layer to deflect under the control of the driving electric field
Implementation Method 3
the guest-host liquid crystal layer including liquid crystal molecules and dichroic dye molecules
Data Source
AI summary
The present disclosure provides a 3D spectacle lens and a method for driving the same, and a 3D glasses and a method for driving the same. The 3D spectacle lens includes: a first substrate and a second substrate arranged opposite to each other; and a guest-host liquid crystal layer arranged between the first substrate and the second substrate, the guest-host liquid crystal layer including liquid crystal molecules and dichroic dye molecules.