Encapsulation structure
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Solution Overview
Problem
Electronic elements, such as display panels and bendable displays, experience issues with poor light uniformity and display quality when fixed on non-flat surfaces due to variations in brightness, leading to exceptionally bright or dark areas.
Innovation Solution
An encapsulation structure with a flexible substrate and light-guiding structures featuring convex and/or concave designs, including inclined and curved surfaces, which are adjustable through shape-adjusting pads to enhance light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic elements are fixed on non-flat surfaces or implemented in bendable devices, then flexibility and adaptability are improved, but light uniformity deteriorates
Solution Approach 1:
The patent introduces light-guiding structures with convex and concave curved surfaces that redirect light paths. These curved optical structures transform the light distribution pattern, enabling uniform illumination across curved or bent display surfaces while maintaining flexibility. The curved surfaces refract and reflect light to compensate for the non-planar geometry, resolving the contradiction between flexibility and light uniformity.
2Illumination intensity
If light-guiding structures with convex and concave surfaces are introduced, then light distribution is improved, but device complexity increases
Solution Approach 1:
The patent combines the light-guiding function with the encapsulation structure by integrating convex and concave optical surfaces into the existing encapsulation layers. This merging approach allows the encapsulation structure to simultaneously perform its protective function and light redistribution function, improving light distribution without proportionally increasing device complexity.
Solution Approach 2:
The encapsulation structure is designed to serve multiple functions: protecting the electronic elements, providing mechanical support, and redistributing light through integrated convex and concave optical surfaces. This multi-functionality reduces the need for separate dedicated light-guiding components, thereby limiting the increase in device complexity while achieving improved light distribution.
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 encapsulation structure improves light uniformity and display quality by expanding the light-emitting range to ±85°, compared to traditional structures limited to ±10°, achieving better brightness and uniformity across various viewing angles.
Implementation Method 1
Each light-guiding structure includes a convex structure and/or a concave structure. The convex structure, in a cross-section, has at least one curved surface, at least two inclined surfaces, or a combination of at least one curved surface and one inclined surface. The concave structure, in a cross-section, has at least one curved surface or at least two inclined surfaces.
Implementation Method 2
Each light-guiding structure includes a convex structure and/or a concave structure. The convex structure, in a cross-section, has at least one curved surface, at least two inclined surfaces, or a combination of at least one curved surface and one inclined surface. The concave structure, in a cross-section, has at least one curved surface or at least two inclined surfaces.
Data Source
AI summary
An encapsulation structure is provided. The encapsulation structure includes a flexible substrate that has an element area and a non-element area. The encapsulation structure also includes multiple electronic elements disposed in the element area. The encapsulation structure further includes multiple light-guiding structures disposed on the electronic elements. The light-guiding structure includes a convex structure and/or a concave structure. The convex structure, in a cross-section, has at least one curved surface, at least two inclined surfaces, or a combination of at least one curved surface and one inclined surface. The concave structure, in a cross-section, has at least one curved surface or at least two inclined surfaces.