Electrochromic Switching Panel for Autostereoscopic 3D Display
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Solution Overview
Problem
Existing autostereoscopic 3D display devices using liquid crystal display panels are complex to fabricate, result in increased production costs, and are difficult to make thin and lightweight due to the added LCD panel, which complicates mass production.
Innovation Solution
An autostereoscopic 3D display device utilizing a switching panel divided into transmission and non-transmission regions using electrochromic materials, which can be formed on a transparent glass substrate or flexible film, allowing for simple fabrication and reduced thickness and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a liquid crystal display panel is used as the switching panel, then the 3D image mode can be implemented, but the fabrication process becomes complicated and productivity deteriorates
Solution Approach 1:
The patent extracts the switching panel function from the display panel by using a separate electrochromic switching panel that can be independently fabricated and then mounted onto the display panel. This separation allows the switching panel to be manufactured using simpler electrochromic material deposition processes rather than complex liquid crystal panel fabrication, thereby improving productivity while maintaining 3D image capability.
Solution Approach 2:
The electrochromic switching panel serves multiple functions: it acts as both the switching mechanism for 3D/2D mode and provides the optical modulation needed for image display. This multi-functionality eliminates the need for separate liquid crystal layers and complex electrode structures, simplifying the overall fabrication process while maintaining reliable 3D image implementation.
2Reliability
If a liquid crystal display panel is used as the switching panel, then the 3D image mode can be implemented, but the device becomes thicker and heavier
Solution Approach 1:
The patent removes the heavy liquid crystal display panel structure and replaces it with a thin electrochromic switching panel that is deposited on a transparent substrate. This extraction of the switching function from the bulky LCD panel structure significantly reduces the overall weight and thickness of the display device while maintaining the ability to implement 3D image mode through electrochromic material modulation.
3Reliability
If a liquid crystal display panel is used as the switching panel, then the 3D image mode can be implemented, but the unit cost increases and mass production becomes difficult
Solution Approach 1:
The patent extracts the switching panel fabrication from the complex liquid crystal display manufacturing process and uses simpler electrochromic material deposition techniques that can be performed using conventional coating and patterning methods. This extraction enables the switching panel to be manufactured more easily and at lower cost, facilitating mass production while maintaining reliable 3D image mode implementation.
Solution Approach 2:
The patent changes the material parameter from liquid crystal to electrochromic material, which fundamentally alters the fabrication approach. Electrochromic materials can be deposited using solution-based techniques and simple thermal or photopatterning, whereas liquid crystal panels require complex multi-step processes including alignment layer deposition, liquid crystal injection, and sealing. This parameter change dramatically improves ease of manufacture and mass production capability.
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 use of electrochromic materials simplifies the fabrication process, reduces the thickness and weight of the display device, and enables efficient switching between 3D and 2D image modes while maintaining a thin and lightweight design, suitable for mass production.
Implementation Method 1
the switching panel being divided into a transmission region and a non-transmission region using electrochromic materials
Data Source
AI summary
An autostereoscopic 3D display device is provided. The display device includes a display panel for displaying an image, and a switching panel attached to the display panel for selectively implementing a 3D image mode and a 2D image mode according to whether an electric signal is supplied. The switching panel is divided into a transmission region and a non-transmission region using electrochromic materials.