Multifunctional Optical Stack with Switchable Dichroic and Reflective Layers
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Solution Overview
Problem
Existing OLED devices and liquid crystal display systems lack the ability to independently switch between multiple states such as lighting, display, and mirror states on both sides of a device, limiting their multifunctional capabilities.
Innovation Solution
A specific stack structure and control method utilizing a dichroic dye composite layer, a liquid crystal display (LCD) layer, and a wide waveband reflective composite layer, allowing each layer to switch between different states (black, transparent, display, dark, mirror, and light-emitting) by adjusting voltage applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional OLED device or liquid crystal display system is used, then the device structure is simple, but the device cannot independently switch between multiple states (lighting, display, mirror states) on both sides
Solution Approach 1:
The patent combines OLED lighting layer, LCD display layer, dichroic dye composite layer, and reflective composite layer into a single integrated device structure. This merging allows the device to achieve multiple functions (lighting, display, mirror states) simultaneously within one unified structure, resolving the contradiction between versatility and complexity by making the complex structure serve multiple purposes together
Solution Approach 2:
Each layer in the device is designed to perform multiple functions across different operational states. For example, the dichroic dye composite layer can switch between black state (blocking light for display), transparent state (allowing light for lighting), and mirror state (reflecting light). This multi-functionality of each component enables the entire device to achieve independent switching of lighting, display, and mirror states on both sides
2Adaptability or versatility
If independent switching of multiple states on both sides is achieved, then the multifunctional capabilities are enhanced, but the control complexity increases
Solution Approach 1:
The device is segmented into functionally independent layers (OLED lighting layer, LCD display layer, dichroic dye composite layer, reflective composite layer), each controlled by independent electrodes and voltage applications. This segmentation allows each layer to be controlled separately to achieve desired states, making the complex multi-state switching manageable through modular control of individual layers rather than managing the entire system as one complex unit
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 independent switching of lighting, display, and mirror states on both sides of the device, enhancing its multifunctional capabilities and versatility.
Implementation Method 1
the dichroic dye composite layer is switchable between a black state and a transparent state
Implementation Method 2
the first liquid crystal display (LCD) composite layer is switchable between a display state, a transparent state and a dark state
Implementation Method 3
the wide waveband reflective composite layer is switchable between a transparent state and a mirror state
Implementation Method 4
the organic light emitting diode (OLED) composite layer is switchable between a light-emitting state and a transparent state
Implementation Method 5
it has optical activity and polarization dichroism of the crystal and its inherent properties such as selective optical scattering
Implementation Method 6
Cholesteric liquid crystal, like other liquid crystal materials, not only has fluidity, deformation and viscosity of the liquid, but also has optical anisotropy of the crystal
Data Source
AI summary
The present disclosure relates to device, and operation method and manufacturing method thereof, wherein the device comprises a dichroic dye composite layer, a first liquid crystal display (LCD) composite layer, a wide waveband reflective composite layer and an organic light emitting diode (OLED) composite layer stacked in this order, wherein the dichroic dye composite layer is switchable between a black state and a transparent state, the liquid crystal display (LCD) composite layer is switchable between a display state, a transparent state and a dark state, the wide waveband reflective composite layer is switchable between a transparent state and a mirror state, and the organic light emitting diode (OLED) composite layer is switchable between a light-emitting state and a transparent state.