Electro-Optical Display Module With Silicone Bonding for Uniform Black Levels
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Solution Overview
Problem
Existing electro-optical display modules suffer from non-uniform black level due to forces generated by connecting elements like EMC gaskets, requiring complex assembly and additional clips/screws, which affect the display's uniformity and assembly efficiency.
Innovation Solution
The connection between elements is achieved using electrically conductive silicone bodies, eliminating direct force transmission and simplifying assembly by dispensing or manual application, ensuring a stable and hermetic seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If EMC gaskets are used to connect elements, then mechanical connection is achieved, but force is transmitted to the display device affecting black level uniformity
Solution Approach 1:
A silicone layer is introduced as an intermediary between the EMC gasket and the display device. This silicone layer acts as a force-absorbing medium that decouples the mechanical connection function from the display device, preventing force transmission while maintaining structural integrity. The silicone's elastic properties allow it to absorb connection forces without transmitting them to the sensitive display components.
2Reliability
If EMC gaskets with clips and screws are used, then secure attachment is achieved, but assembly complexity increases
Solution Approach 1:
The connection function is merged into a single integrated structure comprising the EMC gasket and silicone layer combination. This unified connection system eliminates the need for separate clips and screws, achieving secure attachment through the combined mechanical interlocking of the gasket and the adhesive/bonding properties of the silicone, thereby simplifying the assembly process while maintaining reliability.
Solution Approach 2:
The complex assembly components (clips and screws) are extracted from the connection system. The essential connection function is retained through the EMC gasket and silicone layer, while the unnecessary complex elements are removed, resulting in a simpler assembly process with fewer parts to handle and install.
3Reliability
If additional clips and screws are used for attachment, then connection reliability is improved, but assembly time increases
Solution Approach 1:
The connection elements (EMC gasket and silicone layer) are pre-positioned and pre-configured on the housing elements before final assembly. This preliminary arrangement ensures proper alignment and positioning, allowing for rapid final assembly without the need for time-consuming adjustment, alignment, and fastening operations with clips and screws, thereby reducing assembly time while maintaining connection reliability.
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 approach maintains display uniformity, enhances assembly simplicity, and provides thermal management and electrical grounding, reducing assembly faults and improving the black level consistency.
Implementation Method 1
the at least one silicone body is made of electrically conductive silicone. This allows a good and permanent electrical connection between the first element and the second element to be achieved
Implementation Method 2
the display module is very stable and can provide good thermal management by dissipating heat to an external environment of the electro-optical display module
Data Source
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Figure 5
AI summary
An electro-optical display module has an electro-optical display device (100), a first element (200, 600) and a second element (300, 200). The first element (200, 600) and the second element (300, 200) are interconnected and the first element (200, 300) bears the electro-optical display device (100). The first element (200, 600) and the second element (300, 600) are connected by at least one silicone body (410, 400). In a method for producing an electro-optical display module, wherein the electro-optical display module has the features of the above description, silicone (411) is discharged onto the first element (200, 600) and/or the second element (200, 300) and then the first element (200, 600) and the second element (200, 300) are brought together such that the silicone (411) connects the first element to the second element, and the silicone is left to set, and so the silicone body (410) is formed.