Transparent Display Cover Layer With Embedded Light-Scattering Structures
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Solution Overview
Problem
Electronic devices with displays often face challenges in presenting visual information effectively, as the border regions are not utilized efficiently and may not provide supplemental visual cues without interfering with the main image displayed on the pixels.
Innovation Solution
Incorporating a transparent display cover layer with embedded light-scattering structures in the border region, which can be illuminated independently of the pixel array, allowing for the display of supplemental visual elements such as text, icons, or graphics without overlapping the active image area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the border region is used to display supplemental visual information, then the quantity of visual information provided to the user is improved, but the display may interfere with or obscure the main image displayed on the pixel array
Solution Approach 1:
The display is segmented into two independent systems: the pixel array for the main image and the light-scattering structures for supplemental information. This segmentation allows each region to function independently without interfering with the other, resolving the contradiction between providing supplemental information and maintaining image integrity.
Solution Approach 2:
Different regions of the display have different optical properties. The border region contains light-scattering structures that are transparent when not illuminated but scatter light when illuminated, while the central region maintains continuous transparency for viewing the pixel array. This local differentiation allows supplemental information to be displayed without obstructing the main image.
2Loss of information
If light-scattering structures are embedded in the display cover layer, then supplemental visual elements can be displayed in the border region, but the structural complexity of the display assembly increases
Solution Approach 1:
The light-scattering structures are merged into the display cover layer itself, combining the protective cover function with the supplemental display function. This integration eliminates the need for separate components and reduces overall structural complexity while still enabling supplemental visual information to be displayed.
Solution Approach 2:
The display cover layer serves multiple functions: it protects the pixel array, provides a substrate for light-scattering structures, and acts as a transparent window for viewing both the main image and supplemental information. This multi-functionality reduces the need for additional components and simplifies the overall display assembly.
3Ease of operation
If an opaque coating layer is added beneath the light-scattering structure, then the light-scattering structure can be hidden when not illuminated, but the manufacturing process becomes more complex
Solution Approach 1:
The opaque coating layer is applied in advance during the manufacturing process, before the light-scattering structures are embedded. This preliminary action ensures that the coating is already in place to hide the structures when not illuminated, and the subsequent embedding process is simplified since the coating provides a ready-made base layer.
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 the provision of additional visual information in the border region without obstructing the main image, enhancing user interaction and visual feedback while maintaining the display's appearance and functionality.
Implementation Method 1
A laser-marked light-scattering structure associated with a visual element such as an icon or other visual element may be embedded within an interior portion of the display cover layer between the inner and outer surfaces
Implementation Method 2
A laser-marked light-scattering structure associated with a visual element such as an icon or other visual element may be embedded within an interior portion of the display cover layer
Data Source
AI summary
An electronic device may be provided with a display. The display may be mounted in a housing. Electronic components may be mounted in an interior region of the device. The display may have an array of pixels configured to display an image. A border region such as a ring-shaped border may run along the outermost peripheral edge of the array of pixels. The display may be covered by a transparent display cover layer. The transparent display cover layer may have opposing inner and outer surfaces. The inner surface may face the interior region of the device. A laser-marked light-scattering structure may be embedded within an interior portion of the display cover layer between the inner and outer surfaces. The light-scattering structure may be located in the border region and may be illuminated by a light-emitting device.