Organic Solid Crystal Encapsulation for Optical Devices
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Solution Overview
Problem
Current technologies lack materials with improved optical properties, such as a controllable refractive index and birefringence, optical clarity, and transparency, which are essential for advanced optic and electro-optic devices like VR/AR headsets.
Innovation Solution
The development of organic solid crystal (OSC) materials, which can be manufactured using various methods including gas- and liquid-phase epitaxial and non-epitaxial approaches, to form thin films with tailored optical properties. These OSC materials can be integrated into optical systems and devices to enhance their performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional materials are used in optical devices, then device simplicity is maintained, but optical properties such as refractive index control, birefringence, and transparency are insufficient
Solution Approach 1:
The patent applies parameter changes by systematically varying the molecular structure of organic compounds (changing chemical parameters) to achieve desired optical properties. By modifying molecular weight, functional groups, and crystal packing arrangements, the refractive index and birefringence can be precisely controlled to meet specific optical device requirements.
Solution Approach 2:
The patent employs composite materials by combining organic compounds with specific molecular structures to create materials with tailored optical properties. These composite organic materials integrate multiple functional characteristics (transparency, birefringence, refractive index control) into a single material system, enabling enhanced performance in optical devices.
2Reliability
If organic solid crystal materials are developed to achieve tailored optical properties, then optical performance is improved, but material manufacturing complexity increases
Solution Approach 1:
The patent applies local quality by creating materials with spatially varying molecular orientations and crystal structures. By controlling the local arrangement of organic molecules during crystallization, the material exhibits tailored optical properties in specific regions, enabling precise control of light interaction while maintaining manufacturability through directed self-assembly 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
The use of OSC materials in optical devices provides high broadband efficiency, high off-axis contrast, and the ability to actively tune refractive index and birefringence, leading to improved performance in applications such as VR/AR headsets and other optic and photonic devices.
Implementation Method 1
the organic solid crystal material is configured to modulate a refractive index and/or a birefringence in response to an applied voltage
Implementation Method 2
manufactured using various methods including gas- and liquid-phase epitaxial and non-epitaxial approaches
Data Source
AI summary
A structure includes an organic solid crystal and an encapsulation layer disposed over at least one surface of the organic solid crystal. The encapsulation layer is configured to inhibit mechanical and chemical degradation of the organic solid crystal and may include an organic or inorganic compound, such as silicon dioxide.