Image Transport Layer Optical Uniformity via Deformation
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Solution Overview
Problem
Electronic devices with displays face challenges in integrating displays with limited space due to the shape of the display, which affects the integration of image transport layers and the optical uniformity across the output surface.
Innovation Solution
The use of an image transport layer with an input surface and an output surface of different shapes, where the image transport layer is formed using coherent fiber bundles or Anderson localization material, with attributes such as fiber core diameters and binder fractions varying to enhance optical uniformity across the output surface, and deformation techniques like molding and polishing to expand the output surface area, particularly at the periphery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If molding and polishing techniques are used to deform the image transport layer to expand the output surface area, then the display area is increased and display borders are minimized, but the optical uniformity across the output surface deteriorates due to non-uniform fiber core diameters and binder fractions
Solution Approach 1:
The patent applies preliminary action by pre-configuring the undeformed image transport layer with spatially varying fiber core diameters, cladding thicknesses, and binder fractions before deformation. This preliminary configuration compensates for the expected non-uniformity that will occur after molding and polishing, ensuring uniform optical properties in the final deformed state.
Solution Approach 2:
The patent implements local quality by making different regions of the image transport layer have different initial properties. Specifically, fibers near the periphery are configured with smaller core diameters and thinner claddings compared to central fibers, and the binder fraction is varied spatially. This local differentiation ensures that after uniform deformation, all regions achieve uniform optical properties.
2Area of stationary object
If the periphery of the image transport layer is stretched laterally outwards to expand the output surface area, then display borders are minimized, but the fiber core diameters and binder fractions become non-uniform across the output surface
Solution Approach 1:
The patent applies preliminary action by pre-configuring the undeformed image transport layer with spatially varying fiber core diameters, cladding thicknesses, and binder fractions before deformation. This preliminary configuration compensates for the expected non-uniformity that will occur after molding and polishing, ensuring uniform optical properties in the final deformed state.
Solution Approach 2:
The patent implements local quality by making different regions of the image transport layer have different initial properties. Specifically, fibers near the periphery are configured with smaller core diameters and thinner claddings compared to central fibers, and the binder fraction is varied spatially. This local differentiation ensures that after uniform deformation, all regions achieve uniform optical properties.
3Shape
If molding and polishing processes are applied to deform the image transport layer, then the desired shape and expanded output surface are achieved, but the integration complexity and manufacturing difficulty increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring the undeformed image transport layer with spatially varying fiber core diameters, cladding thicknesses, and binder fractions before deformation. This preliminary configuration compensates for the expected non-uniformity that will occur after molding and polishing, ensuring uniform optical properties in the final deformed state.
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
This configuration allows for the transformation and enlargement of the image size, minimizing display borders and maintaining optical quality by ensuring uniformity and preserving the integrity of the image across the output surface, even when the image transport layer is deformed during processing.
Implementation Method 1
The image transport layer may have an input surface that receives an image from the display and a corresponding output surface to which the image is transported
Implementation Method 2
When deformed by heat and pressure during molding and/or during grinding and polishing, the area of the output surface in the periphery expands
Implementation Method 3
grinding and polishing techniques, and other processes may be used to deform the image transport layer
Data Source
AI summary
An electronic device may have a housing with a display. The display may be overlapped by an image transport layer such as a coherent fiber bundle or layer of Anderson localization material. The image transport layer may have an input surface that receives an image from the display and a corresponding output surface to which the image is transported. The input surface and output surface may have different shapes. During fabrication of the image transport layer, molding techniques, grinding and polishing techniques, and other processes are used to deform the image transport layer and the shape of the output surface. The area of peripheral portions of the output surface may expand relative to central portions. Optical uniformity across the output surface can be enhanced by maintaining uniformity in fiber core diameters and other attributes of the image transport layer across deformed and undeformed portions of the output surface.