3D Display Grating Polarizer Layout for Ghosting Reduction
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Solution Overview
Problem
Conventional naked-eye 3D displaying devices suffer from ghosting issues, leading to a poor user experience due to light leakage and mismatched polarizer axes in TN-type grating regulating devices.
Innovation Solution
A grating regulating device with a specific configuration of polarizing units and electrode layers, including perpendicular absorption axes and controlled electrode orientations, is applied to 3D displaying devices to minimize light leakage and enhance user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional naked-eye 3D displaying device is used, then the user can watch 3D content without wearing 3D glasses, but ghosting occurs resulting in poor user experience
Solution Approach 1:
The patent divides the liquid crystal layer into multiple independent controllable regions corresponding to different viewing angles. Each region can be independently controlled to transmit or block light, allowing precise control of light paths for different eyes while eliminating ghosting effects through spatial segmentation of the display function.
Solution Approach 2:
The patent uses dynamically controllable liquid crystal regions that can change their optical properties in real-time based on the desired 3D image presentation. The liquid crystal molecules can be electrically controlled to rotate and change from a state that blocks light to a state that transmits light, enabling dynamic switching between different viewing angle configurations to prevent ghosting while maintaining 3D display quality.
2Reliability
If the absorption axes of polarizing units are arranged perpendicular to each other, then ghosting is reduced, but the device complexity increases due to multiple polarizing units and substrate layers
Solution Approach 1:
The patent combines multiple polarizing units (first, second, and third polarizing units with perpendicular absorption axes) into a single integrated display structure. The first polarizing unit is on the first substrate, the second polarizing unit is on the second substrate, and the third polarizing unit is on the first substrate, creating a unified optical system that reduces ghosting while maintaining manageable complexity through functional integration.
Solution Approach 2:
The patent resolves the complexity issue by arranging polarizing units in different spatial dimensions and orientations. The absorption axes are arranged perpendicular to each other in different planes and directions, utilizing three-dimensional spatial arrangement to achieve the desired optical effect while distributing the complexity across multiple dimensions rather than concentrating it in a single plane.
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 solution effectively reduces ghosting and improves user experience by aligning the absorption axes of polarizing units and optimizing electrode configurations, resulting in improved 3D image quality.
Implementation Method 1
a first polarizing unit provided on one side of the first substrate away from the second substrate; a second polarizing unit provided on one side of the second substrate away from the first substrate; a third polarizing unit provided on one side of the first substrate away from the second substrate; an absorption axis of the first polarizing unit and an absorption axis of the second polarizing unit are perpendicular, and the absorption axis of the second polarizing unit and an absorption axis of the third polarizing unit are perpendicular
Data Source
AI summary
A grating regulating device is applied to a 3D displaying device. The 3D displaying device includes a display panel, the display panel includes a first polarizing unit, the grating regulating device is provided on one side of the display panel away from the first polarizing unit, and the grating regulating device includes: a first substrate and a second substrate, wherein the first substrate and the second substrate face each other; a second polarizing unit provided on one side of the second substrate away from the first substrate; and a third polarizing unit provided on one side of the first substrate away from the second substrate; and an absorption axis of the first polarizing unit and an absorption axis of the second polarizing unit are perpendicular, and the absorption axis of the second polarizing unit and an absorption axis of the third polarizing unit are perpendicular.