Spliced LED Display Optical Structure for Seamless Panel Joining
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Solution Overview
Problem
Existing display technologies face challenges in achieving seamless splicing and high-quality display for large format displays, particularly in manufacturing efficiency and cost reduction while maintaining good visual effects.
Innovation Solution
The electronic device comprises a first substrate with a light blocking structure and a plurality of second units with LEDs, where the second units are spliced onto the first unit using an optical adhesive layer and alignment marks, with scattering elements and light conversion units to enhance light utilization and reduce the visibility of splicing lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display panels are spliced together to achieve large format display, then the display area is increased, but the visibility of splicing lines deteriorates
Solution Approach 1:
A light blocking structure is introduced as an intermediary element between adjacent display panels. This structure includes a first light blocking layer and a second light blocking layer that work together to block light leakage at the splicing seams, effectively reducing the visibility of splicing lines while maintaining the large display area
Solution Approach 2:
The light blocking structure is selectively positioned only at the splicing regions between panels rather than across the entire display area. The first light blocking layer is located at the edge of each panel and the second light blocking layer is positioned to overlap with adjacent panels, creating localized light blocking precisely where needed to address splicing line visibility
2Manufacturing precision
If complex optical structures are added to reduce splicing line visibility, then the display quality is improved, but the device complexity increases
Solution Approach 1:
The light blocking structure is integrated with the existing display panel structure. The first light blocking layer is formed on the same substrate as the display elements, and the second light blocking layer is positioned to work in conjunction with the first layer, merging multiple functions into a unified structure that reduces overall device complexity
Solution Approach 2:
The light blocking structure is divided into two distinct layers: the first light blocking layer positioned at the edge of each panel and the second light blocking layer positioned to overlap with adjacent panels. This segmentation allows each layer to perform its specific function independently while working together to achieve the overall goal of reducing splicing line visibility
3Manufacturing precision
If alignment marks and optical adhesive layers are used for splicing, then the splicing precision is improved, but the manufacturing process complexity increases
Solution Approach 1:
Alignment marks are pre-formed on the display panels before the splicing process. These marks serve as reference points that guide the positioning and alignment of adjacent panels during assembly, enabling precise splicing without requiring complex real-time adjustment mechanisms
Solution Approach 2:
An optical adhesive layer is introduced as an intermediary material between adjacent display panels. This adhesive layer not only bonds the panels together but also helps to fill and smooth the splicing regions, contributing to both the mechanical connection and the optical uniformity of the assembled display
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 configuration simplifies the manufacturing process, reduces the frame size of display panels, achieves seamless splicing, and improves display quality by increasing light utilization and reducing the visibility of splicing lines, thereby providing a high-quality visual effect.
Implementation Method 1
the first optical structure comprises a scattering element
Implementation Method 2
a plurality of second units, each comprising: a second substrate disposed opposite to the first substrate; a blue light emitting diode and a non-blue light emitting diode disposed between the first substrate and the second substrate
Data Source
AI summary
The electronic device includes a first substrate, a second substrate, a first light emitting diode, a second light emitting diode, a first optical structure and a second optical structure. The second substrate is disposed opposite to the first substrate. The first light emitting diode and the second light emitting diode are disposed between the first substrate and the second substrate and adjacent to each other. The first optical structure and the second optical structure are disposed between the first substrate and the second substrate. A light emitted from the first light emitting diode passes through the first optical structure to provide a blue light, a light emitted from the second light emitting diode passes through the second optical structure to provide a light having a color different from blue, and the first optical structure comprises a scattering element.