Alignment Patterns for Non-Rectangular Display Optical Film Positioning
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Solution Overview
Problem
Non-rectangular display apparatuses, such as circular or polygonal displays, face challenges in maintaining optimal optical characteristics due to difficulties in correctly positioning optical films, leading to misalignment and deteriorated performance.
Innovation Solution
The use of alignment patterns on shielding layers and optical films, where the first alignment pattern of the shielding layer overlaps with the second alignment pattern of the optical film, ensures accurate positioning and maintains superior optical characteristics by preventing misalignment during the fixing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If non-rectangular substrates and optical films are used to create wearable display apparatuses, then the adaptability and versatility of the display are improved, but the manufacturing precision and alignment accuracy deteriorate due to difficulties in correctly positioning optical films onto curved or irregularly shaped substrates
Solution Approach 1:
Alignment patterns are pre-formed on both the substrate and optical film before the lamination process. These patterns serve as guides that enable accurate positioning and alignment when the optical film is later bonded to the substrate, resolving the alignment precision issue while maintaining shape adaptability
Solution Approach 2:
The alignment patterns act as intermediary elements between the substrate and optical film. By providing visual or structural references that both components can reference, these patterns mediate the alignment process, allowing manufacturers to achieve precise positioning even on non-rectangular surfaces
Data Source
AI summary
A display apparatus includes a first substrate, a first shielding layer, a first optical film, a second substrate, and a display medium. The first shielding layer is located on the first substrate and has a first alignment pattern. The first optical film is located on the first substrate. The first optical film has a second alignment pattern on a side edge of the first optical film. The first alignment pattern and the second alignment pattern are overlapped with each other. The second substrate is located opposite to the first substrate. The display medium is sandwiched between the first substrate and the second substrate.