Double Glazing Video Display with Inter-Pane Circuit
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Solution Overview
Problem
Existing large-scale LED display devices on building facades face challenges in window cleaning and back-scattering of light, which affects visibility and occupant comfort, while also being vulnerable to weather and dirt.
Innovation Solution
The implementation of a double glazing system with an electronic circuit placed between two panes, allowing for easy cleaning of the inner pane and reducing back-scattering by having only one pane face the light, while maintaining protection from weather and dirt, and using a semi-transparent support with a protective layer and a partial gas vacuum to enhance durability and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic circuit is placed inside the building facing the windows, then the circuit is protected from bad weather and moisture, but the window cannot be cleaned and back-scattering of light occurs
Solution Approach 1:
The display system is segmented into multiple independent panes of glass, with the electronic circuit positioned between them rather than on the interior surface. This segmentation allows the interior pane to be accessed and cleaned independently while the circuit remains protected in the inter-pane space.
Solution Approach 2:
The second pane of glass acts as an intermediary element between the circuit and the interior environment. It allows light transmission while providing a cleanable surface for the interior pane, effectively mediating between the need for circuit protection and window cleanability.
2Reliability
If the electronic circuit is placed inside the building facing the windows, then the circuit is protected from bad weather, but back-scattering of light is generated which is harmful for occupants
Solution Approach 1:
The circuit is extracted from the interior surface position and relocated to the inter-pane space. This extraction eliminates the direct interface between the circuit and the interior environment, thereby removing the source of back-scattering light while preserving weather protection.
Solution Approach 2:
The dual-pane structure, which initially might be seen as an obstacle to light transmission, is converted into a beneficial configuration where the first pane directs light away from the circuit, transforming the potential harm of light blocking into a solution that eliminates back-scattering while maintaining illumination.
3Adaptability or versatility
If the circuit is placed on the facade, then the facade is not closed off and natural light can enter, but the circuit is exposed to weather and dirt
Solution Approach 1:
The electronic circuit is nested within the inter-pane space of the glass structure. This nesting allows the circuit to be protected from weather and dirt while still permitting light transmission through the transparent panes, effectively combining protection with adaptability to light requirements.
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
Facilitates window cleaning, minimizes back-scattering, maintains circuit protection, and ensures constant dimensional characteristics, improving both occupant comfort and the longevity of the display device.
Implementation Method 1
the back-scattering effect that could occur by light being reflected on the inside face of the outside pane is greatly attenuated or even eliminated because of the presence of the inside pane
Implementation Method 2
display panels using light-emitting diodes (LEDs)
Implementation Method 3
The light emitted by the diodes is transmitted directly to the outside
Data Source
AI summary
The element, in particular for a building, comprises two panes facing each other and forming double glazing; and an electronic circuit including diodes and suitable for displaying at least a portion of a video image by means of the diodes, the circuit extending between the two panes, facing a visible zone of the panes.The element may be used to form a video display device on a building facade.