LED Display Module Transparent Glass Substrate Light Permeability
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Solution Overview
Problem
Existing LED display modules, particularly those of black box body type and strip structure, face challenges in achieving high pixel density and light permeability, which are essential for applications like glass curtain walls and high-grade shop windows, as they often block light and have limited transparency.
Innovation Solution
The solution involves an LED display module with lamp beads arranged on transparent glass boards and driving PCBs positioned perpendicularly to the glass, using connecting needle seats and a frame made of aluminum alloy, with the boards and PCBs made of glass fibers and PMMA polymer material to enhance transparency and pixel density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If non-transparent housing is used to fix LED light-emitting units on strip circuit boards, then structural stability is improved, but light transmittance deteriorates
Solution Approach 1:
The patent removes the non-transparent housing component entirely from the LED display structure. Instead of using housing to protect and mount components, the design exposes the LED light-emitting units directly on transparent substrates, eliminating the light-blocking element while maintaining structural integrity through alternative mounting methods
Solution Approach 2:
The patent changes the optical property of the substrate from opaque to transparent. By using transparent glass or transparent PCB materials instead of traditional opaque housing materials, the structure allows light to pass through while still providing mechanical support and protection for the LED components
2Illumination intensity
If pixel pitch between unit modules is increased above 40mm to provide light transmittance effect, then light transmittance is improved, but pixel density deteriorates
Solution Approach 1:
The patent transitions from a modular assembly approach (cascading multiple unit modules with gaps) to a continuous substrate approach. By arranging LED light-emitting units directly on large-area transparent substrates without requiring spacing between modules, the design achieves high pixel density while maintaining full light transmittance across the entire display surface
Solution Approach 2:
The patent merges multiple separate unit modules into a unified continuous structure. Instead of assembling discrete modules with inevitable gaps, the design uses single continuous transparent substrates to mount LED units, eliminating the need for spacing and achieving both high pixel density and continuous light transmission
3Strength
If black box body type LED display devices are installed on glass curtain walls, then structural stability is improved, but light transmittance effect is lost
Solution Approach 1:
The patent removes the black box body housing that completely blocks light. By eliminating this opaque enclosure and using open-frame or frameless designs with transparent substrates, the display maintains structural stability while allowing light to pass through to the glass curtain wall behind, preserving the light transmittance effect required for such applications
Data Source
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AI summary
Disclosed are an LED (Light Emitting Diode) display module and a method of fabricating the LED display module. Lamp beads (1) in the LED display module are fixed to the surface of a linearly arranged lamp bead plate (2), the lamp bead plate (2) is fixed to a driving PCB (Printed Circuit Board) (3), the surface of the lamp bead plate (2) is perpendicular to the surface of the driving PCB (3), the surface of the driving PCB (3) is perpendicular to the surface of a glass plate (5), and a fixed member (7) is fixed on a frame (4). The transparent glass plate (5) with high transparency is employed as a mounting body and the driving PCB (3) is transversely disposed on the glass plate (5), so that shielding of light by the driving PCB (3) can be remarkably reduced and the transparency of the LED display module is improved. And meanwhile, the pixel density of the LED display module is enhanced by fixing the plurality of lamp beads (1) to the surface of the linearly arranged lamp bead plate (2).