Switchable Liquid Crystal Panel for 2D and 3D Display Modes
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Solution Overview
Problem
Conventional lenticular type 3D display devices are limited to displaying only 3D images and cannot switch to 2D image display, making them unsuitable for conventional 2D image and video streams.
Innovation Solution
A liquid crystal panel with a light refraction device and a liquid crystal layer that can function as a lenticular lens when an electric field is applied, allowing for the selective display of 2D or 3D images by controlling the electric field to change the refractive indices of the liquid crystal layer and the light refraction device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed lenticular lens plate is attached on the flat panel display to display 3D images, then 3D image display capability is achieved, but the device cannot display conventional 2D images
Solution Approach 1:
The patent applies the dynamics principle by making the lens structure switchable between two states: when voltage is applied to the liquid crystal layer, the refractive index changes to enable 3D image display; when voltage is removed, the lens function is disabled for 2D display. This dynamic control allows a single device to adapt between 2D and 3D modes without requiring separate fixed lens plates for each mode.
Solution Approach 2:
The patent utilizes parameter changes by exploiting the voltage-dependent refractive index of liquid crystal material. By changing the electrical parameter (voltage application), the optical parameter (refractive index) changes accordingly, transforming the liquid crystal layer from a transparent state (for 2D display) to a lensing state (for 3D display). This parameter transformation enables mode switching without mechanical structural changes.
2Adaptability or versatility
If a lenticular lens method is used to display 3D images, then 3D visualization is achieved, but the device cannot be used for conventional 2D image and video streams
Solution Approach 1:
The patent implements universality by designing a single liquid crystal panel that can perform multiple functions: displaying 2D images when voltage is removed and displaying 3D images when voltage is applied. This multi-functional design eliminates the need for separate devices or complex switching mechanisms, allowing users to operate the same device flexibly for both 2D and 3D content without operational complexity.
3Adaptability or versatility
If a liquid crystal layer is used to control light refraction for 3D display, then mode switching capability is achieved, but power consumption increases during 3D image display
Solution Approach 1:
The patent applies periodic action by using voltage pulses to switch between 2D and 3D display modes rather than continuous voltage application. The liquid crystal layer can be rapidly switched between states using pulsed voltage, and the system can operate in low-power 2D mode when 3D display is not needed. This periodic voltage application reduces overall power consumption while maintaining the capability for mode switching.
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 display device to switch between 2D and 3D modes based on the application of an electric field, allowing for the use of the same device for both 2D and 3D image streams while minimizing power consumption during 2D image display.
Implementation Method 1
A liquid crystal panel with a light refraction device and a liquid crystal layer that can function as a lenticular lens when an electric field is applied
Implementation Method 2
a liquid crystal layer interposed between the first electrode and the light refracting lenses
Implementation Method 3
a light refraction device on the second substrate, the light refraction device including a plurality of light refracting lenses facing the surface of the first substrate
Data Source
AI summary
A liquid crystal panel includes a first substrate and a second substrate; a first electrode on a surface of the first substrate; a light refraction device on the second substrate, the light refraction device including a plurality of light refracting lenses facing the surface of the first substrate; and a liquid crystal layer interposed between the first electrode and the light refracting lenses.