Double-Sided Display Device with Liquid Crystal Switching Panel
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Solution Overview
Problem
Existing double-sided display devices lack versatility in operation modes, limiting their ability to meet diverse requirements across various applications such as advertising, retail, and exhibitions.
Innovation Solution
A multifunctional double-sided display device incorporating a transparent self-luminous display panel, a switching panel with liquid crystal layers, and a projection device, allowing for multiple operation modes including transparent, shielding, augmented reality, single-sided display, and double-sided display modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional single-mode display device is used, then the device structure is simple, but the device lacks versatility to meet diverse application requirements
Solution Approach 1:
The display device integrates multiple functional components (transparent self-luminous display panel, switching panel with liquid crystal layer, projection device) that can operate in five different modes (transparent mode, shielding mode, AR mode, single-sided display mode, double-sided display mode), allowing one device to serve multiple purposes across different applications such as advertising, retail, and exhibitions
2Illumination intensity
If the switching panel is switched to the scattering state, then the visibility of displayed content is improved, but the transmittance of the device decreases
Solution Approach 1:
The switching panel can dynamically change its state between transparent and scattering through electrical control of the liquid crystal layer, allowing the device to adapt its optical properties based on the desired operating mode and environmental conditions
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 device can operate in various modes to suit different applications, enhancing visibility, interactivity, and user engagement while maintaining flexibility and effectiveness.
Implementation Method 1
The switching panel includes a first electrode, a second electrode and a liquid crystal layer disposed between the first electrode and the second electrode. The first electrode and the second electrode are configured to control liquid crystal molecules in the liquid crystal layer so that the switching panel includes a scattering state and a transparent state.
Implementation Method 2
The projection device is configured to project toward the light-emitting side of the transparent self-luminous display panel. The light emitted by the projection device passes through the transmitting region of the transparent self-luminous display panel.
Data Source
AI summary
A double-sided display device includes a transparent self-luminous display panel, a switching panel and a projection device. The transparent self-luminous display panel has a light-emitting side and a backside opposite to the light-emitting side. The switching panel is disposed on the backside of the transparent self-luminous display panel. The switching panel includes a first electrode, a second electrode and a liquid crystal layer disposed between the first electrode and the second electrode. The first electrode and the second electrode are configured to control liquid crystal molecules in the liquid crystal layer so that the switching panel includes a scattering state and a transparent state. The projection device is configured to project toward the light-emitting side of the transparent self-luminous display panel.