LED Display Module Packaging for Crosstalk Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional LED display screens face challenges in achieving high resolution with densely packed pixels, leading to increased production complexity and optical crosstalk, which affects color performance and brightness uniformity.
Innovation Solution
The LED display screen module features an array of LED package structures with packaging layers that include flat upper and lateral light emitting surfaces connected via a transitional curved surface, reducing optical crosstalk and allowing for simpler manufacturing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If pixels are densely packed to increase resolution, then display resolution is improved, but optical crosstalk between adjacent pixels increases
Solution Approach 1:
The packaging layer is divided into separate packaging portions for each pixel, with each portion independently enclosing its pixel. This segmentation prevents light from adjacent pixels from interfering with each other, effectively reducing optical crosstalk while maintaining high pixel density.
Solution Approach 2:
The packaging layer acts as an intermediary barrier between adjacent pixels. By introducing this intermediate structure, light transmission is controlled and confined to individual pixel regions, preventing harmful optical interference while preserving the densely packed pixel arrangement.
2Manufacturing precision
If cutting actions are increased to form wider recesses, then pixel separation is improved, but manufacturing complexity increases
Solution Approach 1:
Multiple cutting operations are merged into a single integrated packaging layer formation process. The packaging layer is formed to cover multiple pixels simultaneously, creating recesses that separate pixels without requiring multiple sequential cutting actions, thereby simplifying the manufacturing process.
Solution Approach 2:
The packaging layer is formed in advance with pre-designed recess structures before final pixel assembly. This preliminary formation of separation structures eliminates the need for subsequent complex cutting operations, reducing manufacturing steps and complexity while achieving effective pixel separation.
3Manufacturing precision
If external electrodes are densely arranged to accommodate higher resolution, then display resolution is improved, but circuit design complexity increases
Solution Approach 1:
The circuit design is segmented by the packaging layer structure, which electrically isolates adjacent pixels. This segmentation allows external electrodes to be densely arranged for high resolution while simplifying circuit design, as each pixel's electrical connections are contained within its own packaging portion.
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 design enhances color consistency and brightness uniformity, enabling better visual effects and allowing for easy assembly into larger displays with stable quality and scalable production.
Implementation Method 1
Each of the packaging portions has an upper light emitting surface and a lateral light emitting surface. The upper light emitting surface is a flat surface and is connected to the lateral light emitting surface via a transitional curved surface.
Data Source
AI summary
An LED display screen module includes a module substrate and a plurality of LED package structures. The LED package structures are disposed on the module substrate and arranged into an array. Each of the LED package structures includes a plurality of pixels and a packaging layer. The pixels are spaced apart from each other. The packaging layer includes a plurality of packaging portions and a plurality of connecting portions. The packaging portions respectively cover the pixels, and each of the connecting portions is connected between the adjacent two packaging portions. Each of the packaging portions has an upper light emitting surface and a lateral light emitting surface. The upper light emitting surface is a flat surface and is connected to the lateral light emitting surface via a transitional curved surface.