Flexible Microlens Array Film for 3D Displays
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Solution Overview
Problem
Current microlens arrays used in virtual and 3D display technologies face challenges such as poor durability, flexibility, and sensitivity to external environments, particularly with spherical lenses manufactured using the reflow phenomenon method, which limits their effectiveness in producing high-quality, flexible microlens arrays for advanced display devices.
Innovation Solution
A microlens array film design featuring flexible polymer layers sandwiched between transparent electrodes, which can be deformed by applying voltages to create a flexible and reconstructible lens structure, enhancing durability and flexibility while maintaining optical functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If spherical lenses are manufactured using the reflow phenomenon method, then manufacturing cost is reduced and production is simplified, but durability and flexibility are poor and the lenses are strongly affected by external environment
Solution Approach 1:
The patent changes the material parameter from conventional glass or rigid plastic to flexible polymer material. This allows the lens to maintain its optical functionality while gaining flexibility and durability. The flexible polymer can withstand bending and external environmental effects without compromising the lens structure, thus resolving the contradiction between ease of manufacture and reliability.
Solution Approach 2:
The patent employs composite material structure by combining flexible polymer with transparent electrode layers (such as ITO or FTO) to form a flexible microlens array. This composite structure integrates the optical properties of transparent materials with the mechanical flexibility of polymers, achieving both durability and flexibility while maintaining ease of manufacturing through conventional deposition techniques.
2Manufacturing precision
If rigid microlens structures are used, then optical precision is maintained, but flexibility and adaptability to external environments are reduced
Solution Approach 1:
The patent changes the material parameter from rigid to flexible polymer, enabling the microlens array to adapt to external environmental conditions and be integrated into flexible display devices while maintaining optical precision through proper material selection and structural design.
3Ease of operation
If conventional microlens arrays are used in 3D displays, then basic optical functionality is provided, but eye fatigue and distortion occur due to poor durability and flexibility
Solution Approach 1:
The patent changes the material parameter to flexible polymer, which improves durability and flexibility of the microlens array. This resolves eye fatigue and distortion issues by enabling better integration with flexible display structures and more consistent optical performance during device operation and bending.
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 flexible microlens array film enables improved durability and flexibility, reducing eye fatigue and distortion in 3D displays, and allows for active control of light transmission paths, enhancing the overall display quality and user experience.
Implementation Method 1
a flexible polymer layer placed between the first and the second transparent electrodes. At least one of the first and second transparent electrodes is flat.
Data Source
AI summary
Provided are a microlens array film and a display device including the same. The microlens array film includes a first transparent electrode and a second transparent electrode facing each other and a flexible polymer layer placed between the first and the second transparent electrodes. Lenses may be freely deformed by regulating voltages applied to the first and second transparent electrodes.