Display Border Image Transport Material for Expanded Viewing Area
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Solution Overview
Problem
Electronic devices with display cover layers often result in larger inactive border regions and undesired image distortion due to the inclusion of the cover layer, which can limit the expansion of image size and optical modification along the peripheral edges of the pixel array.
Innovation Solution
Incorporating a border structure formed from image transport material, such as a coherent fiber bundle or Anderson localization material, between the pixel array and the display cover layer, which allows for the expansion of the image size without introducing distortion by receiving and presenting the image along the peripheral edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a display cover layer is included to protect the pixel array, then the pixel array is protected from damage, but the device has larger inactive border regions and undesired image distortion
Solution Approach 1:
The patent extends the display image from the traditional planar display surface into the third dimension by using the vertical space between the display cover layer and the pixel array. Image transport material (coherent fiber bundle or Anderson localization material) is placed in this gap to conduct light from peripheral pixel regions to the front surface of the display cover layer, effectively utilizing the z-dimension to expand the visible display area without increasing the device's footprint.
Solution Approach 2:
Image transport material serves as an intermediary between the pixel array and the display cover layer. This material (coherent fiber bundle or Anderson localization material) receives light from the peripheral regions of the pixel array and transports it to the front surface of the display cover layer, enabling the display of image content in regions that would otherwise be inactive borders.
2Reliability
If a display cover layer is included to protect the pixel array, then the pixel array is protected from damage, but undesired image distortion is introduced
Solution Approach 1:
The patent divides the display structure into distinct functional zones: a central region where light passes directly through the display cover layer, and peripheral regions where image transport material is inserted. This segmentation allows the peripheral image transport material to compensate for distortion caused by the display cover layer's curvature or thickness variations, as the image transport material can be specifically designed to correct optical path deviations in those regions.
Solution Approach 2:
The patent changes the optical parameters of the peripheral display regions by introducing image transport material with specific refractive index properties. This material modifies the light propagation path in the peripheral regions to compensate for distortion introduced by the display cover layer, effectively adjusting the optical parameters to achieve uniform image quality across the entire display surface.
3Area of stationary object
If the display cover layer is made thinner to reduce border regions, then the inactive border area is reduced, but the protective function is compromised
Solution Approach 1:
The patent utilizes the vertical dimension (gap between display cover layer and pixel array) to accommodate image transport material. This allows the display cover layer to maintain its protective thickness while the image transport material extends the visible display area perpendicularly, effectively adding display functionality in the z-dimension without compromising the protective function of the display cover layer.
4Area of stationary object
If image transport material is inserted in the peripheral portion, then the visible image size is expanded, but the device complexity increases
Solution Approach 1:
The image transport material serves multiple functions simultaneously: it expands the visible display area, corrects image distortion in peripheral regions, and utilizes the existing gap space without requiring additional structural support. This multi-functionality reduces the need for additional components and simplifies the overall device structure despite the added functionality.
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 solution effectively minimizes display borders and enhances the visible image size without causing distortion, allowing for a more seamless and expanded viewing experience by using image transport material to redirect and present the image along the edges of the device.
Implementation Method 1
The image transport material may be formed from a coherent fiber bundle
Implementation Method 2
The image transport material may be formed from a coherent fiber bundle or Andersen localization material
Data Source
AI summary
An electronic device may have a housing. A pixel array may be mounted in the housing to display an image. The pixel array may have a central portion surrounded by a peripheral portion. Display cover layer structures may overlap the pixel array. A central portion of the display cover layer structures may overlap the central portion of the pixel array. A peripheral portion of the display cover layer structures may overlap the peripheral portion of the pixel array. A border structure of image transport material may be interposed between the peripheral portion of the pixel array and the peripheral portion of the display cover structures. The image transport material may be omitted from the central portion of the pixel array. The image transport material may be formed from a coherent fiber bundle or Anderson localization material.