LED Tiling Display Module Layout for Low-Reflection Edges
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Solution Overview
Problem
LED tiling displays face challenges in suppressing outside light reflection, leading to degraded visual quality and contrast due to the absence of bezels and the susceptibility of circular polarizing films to moist heat shrinkage and iodine dissolution.
Innovation Solution
Incorporating a circular polarizing film with a thickness of 10 μm or less, a protective layer, and applying a colored resin material to the end portion of the film to prevent shrinkage and light emission, ensuring the LED elements are positioned close to the edge of the display module to minimize reflection and enhance image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a circular polarizing film is used to suppress outside light reflection, then visual quality is improved, but the film is susceptible to moist heat shrinkage and iodine dissolution
Solution Approach 1:
The patent uses a circular polarizing film with a thickness of 10 μm or less to suppress outside light reflection while maintaining flexibility. The thin film structure allows effective light control while reducing susceptibility to environmental degradation through careful material selection and thickness optimization.
Solution Approach 2:
The patent changes the thickness parameter of the circular polarizing film to 10 μm or less, which optimizes the balance between light reflection suppression performance and resistance to moist heat shrinkage and iodine dissolution. This parameter adjustment resolves the contradiction by finding an optimal value that satisfies both visual quality and reliability requirements.
2Illumination intensity
If LED elements are positioned close to the edge to minimize reflection, then image quality is enhanced, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies different positioning requirements to different regions of the display module. LED elements near the edges are positioned at specific distances from the edges to minimize reflection, while central elements follow standard grid positioning. This local quality approach allows image quality enhancement without uniformly increasing manufacturing precision requirements across the entire display.
Solution Approach 2:
The patent incorporates the edge distance constraint into the initial LED element layout design and manufacturing process planning. By predetermined the maximum distance from edge LED elements to the display module edge, the manufacturing process can prepare appropriate fixtures and positioning systems in advance, reducing the actual precision burden during assembly.
3Object-affected harmful factors
If the distance from edge LED element to display module edge is reduced to half the predetermined interval or less, then outside light reflection is suppressed, but the display module complexity increases
Solution Approach 1:
The patent introduces asymmetric positioning for edge LED elements, where the distance from the LED element to the display module edge is constrained to be half the predetermined interval or less. This asymmetric arrangement specifically targets edge regions where reflection is most problematic, suppressing outside light reflection without requiring symmetric complexity changes throughout the entire display structure.
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 solution effectively reduces outside light reflection, improves visual quality, and maintains high contrast by suppressing moist heat shrinkage and iodine dissolution, resulting in enhanced image display performance.
Implementation Method 1
a film disposed on the display section to reduce light incident from outside and that is reflected from the display section
Data Source
AI summary
The present technology relates to a display module and a manufacturing method, and a display apparatus that enable visual quality to be improved. A display module includes a display section and a film disposed on the display section to reduce light incident from outside and that is reflected from the display section. The display section includes an electronic board and a plurality of LED elements juxtaposed at predetermined intervals on a surface of the electronic board, the surface being on the film side. A distance from the LED element positioned closest to an end of the display section to the end of the display section is equal to or shorter than half the predetermined interval. The present technology is applicable to a LED tiling display.