Transparent Structure for Beam Projector Switching Modes
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Solution Overview
Problem
Beam projector screens are often fixed and cumbersome to move, limiting their mobility and flexibility, especially when transitioning between transmission and reflection modes, which hinders convenient use in various environments.
Innovation Solution
A transparent structure comprising a polymer-dispersed liquid crystal layer and a colloid layer with electrodes and control parts, allowing for quick switching between transmission and reflection modes by applying a driving voltage, enabling the screen to adapt to different usage scenarios without relocating the projector or screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed screen structure is used, then the screen can maintain stable position and structure, but the mobility and flexibility of the screen are limited
Solution Approach 1:
The patent applies a polymer-dispersed liquid crystal layer that can dynamically change its optical properties between transparent and opaque states, and a colloid layer with charged particles that can switch between transmission and reflection modes through voltage application. This dynamic characteristic allows the screen to be easily deployed and retracted while maintaining structural stability when in use.
2Adaptability or versatility
If the screen is fixed on one side of the wall, then the installation is simple, but the direction change and mobility are limited
Solution Approach 1:
The patent creates a multi-functional screen that can operate in both transmission mode (for front projection) and reflection mode (for rear projection) by applying voltage to the colloid layer. This allows the same screen to adapt to different projection directions and usage scenarios without requiring multiple separate screens or complex reinstallation.
3Ease of operation
If a roll-type screen with fixed top is used, then the screen can be stored compactly, but the temporary expansion process is cumbersome
Solution Approach 1:
The patent employs a polymer-dispersed liquid crystal layer that can rapidly transition between transparent and opaque states, and a colloid layer that can quickly switch between transmission and reflection modes through voltage application. This dynamic response allows for rapid deployment and retraction of the screen without cumbersome manual expansion processes.
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 convenient and flexible use of beam projector screens by allowing quick switching between transmission and reflection modes, improving mobility and usability without altering the projector or screen positions, thus enhancing space utilization and user experience.
Implementation Method 1
a polymer dispersed liquid crystal layer disposed between the first electrode and the second electrode
Implementation Method 2
a colloid layer disposed between the third electrode and the fourth electrode, the colloid layer includes charged particles of which surfaces exhibit (+) charge or (−) charge
Implementation Method 3
the ultraviolet curable polymer may be cured using ultraviolet with a wavelength of about 250 nm to about 400 nm, and energy with about 50 mJ to about 2000 mJ
Data Source
AI summary
A transparent structure according to an embodiment of the present disclosure includes a first panel and a second panel, wherein the first panel includes: a first electrode; a second electrode separated from the first electrode; and a polymer dispersed liquid crystal layer disposed between the first electrode and the second electrode, the second panel includes: a third electrode; a fourth electrode separated from the third electrode; and a colloid layer disposed between the third electrode and the fourth electrode, the fourth electrode includes multiple openings, and the colloid layer includes charged particles of which surfaces exhibit (+) charge or (−) charge.