Liquid Crystal Lens Panel for Glassless 3D Display
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Solution Overview
Problem
Current 3D display devices using stereoscopic or autostereoscopic techniques either require glasses or complex barrier panels, limiting their glassless 3D image display capabilities.
Innovation Solution
A 3D display device incorporating a liquid crystal lens panel with a display panel that operates in 2D, 3D, and coincident modes, utilizing a liquid crystal layer between substrates with lens and common electrodes to refract 3D images while transmitting 2D images without refraction, allowing for glassless 3D image display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a liquid crystal lens panel is used to refract 3D images, then glassless 3D image display is enabled, but the device complexity increases due to additional substrates and electrode structures
Solution Approach 1:
The liquid crystal lens panel is designed to perform multiple functions: it acts as both a lens panel for 3D image refraction and integrates common electrodes that can function as touch electrodes. This multi-functionality reduces the need for separate touch sensor layers, thereby reducing overall device complexity while maintaining glassless 3D display capability
Solution Approach 2:
The common electrodes of the liquid crystal lens panel are merged with the touch sensor electrodes, combining two functional layers into one. This integration reduces the number of discrete components and simplifies the overall device structure while enabling both 3D image refraction and touch sensing functions
2Manufacturing precision
If the liquid crystal lens panel refracts 3D images through the third region, then 3D image quality is improved, but the 2D image transmission is affected in the same region
Solution Approach 1:
The liquid crystal lens panel is designed with spatially varying properties: the third region contains common electrodes that create specific refractive index distributions for 3D image refraction, while the first and second regions maintain uniform structures optimized for 2D image transmission. This local differentiation allows each region to optimize its specific function without interfering with other regions
Solution Approach 2:
The liquid crystal lens panel is segmented into distinct functional regions: first and second regions for 2D image transmission and a third region for 3D image refraction. This segmentation allows independent optimization of each region's optical properties, enabling high-quality 3D refraction in the third region while preserving 2D transmission integrity in other regions
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 glassless 3D image display by refracting 3D images while maintaining the integrity of 2D images, enhancing user experience and reducing hardware complexity.
Implementation Method 1
the liquid crystal layer may be changed in phase when offset voltages between the lens electrodes and the common electrodes are lower than a saturation voltage
Implementation Method 2
The liquid crystal lens panel is configured to refract the 3D image through a third region of the liquid crystal lens panel
Data Source
AI summary
A 3D display device is provided. The 3D display device includes a display panel and a liquid crystal lens panel. The display panel operates in one of a 2D mode for displaying a 2D image, a 3D mode for displaying a 3D image, and a coincident mode for displaying the 2D image and the 3D image. The liquid crystal lens panel is disposed on the display panel. The liquid crystal lens panel is configured to refract the 3D image through a third region of the liquid crystal lens panel and to transmit the 2D image without refracting the 2D image when the display panel operates in the coincident mode.