Transparent Display Coupler Assembly for Bubble-Free Rework
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Solution Overview
Problem
Conventional transparent display modules spliced using colloidal adhesive require extensive removal of the adhesive, which leads to formation of air bubbles, thus causing poor filling and reducing manufacturing yield. Moreover, when reworking is required, the display device spliced using the colloidal adhesive requires extensive removal of the adhesive, making it difficult to disassemble and potentially damaging the display modules.
Innovation Solution
A display device is assembled using a detachable coupler, with a colloidal adhesive applied along the edges but not at the first side, and a recessed coupler forming an adhesive space filled with the adhesive, allowing for easier splicing and detachment, reducing the risk of damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If colloidal adhesive is used to splice display modules, then the display modules can be assembled together, but the gaps become too small which hinders adhesive flow and causes air bubbles, reducing manufacturing yield
Solution Approach 1:
The invention introduces a detachable coupler as an intermediate component that segments the splicing structure into distinct functional parts: the coupler body with adhesive cavity, positioning portions, and detachable connections. This segmentation allows the adhesive to be contained in a dedicated cavity with controlled dimensions, ensuring proper adhesive flow and air bubble elimination while maintaining assembly functionality.
Solution Approach 2:
The detachable coupler serves as an intermediary component between adjacent display modules. It provides a structured interface that includes an adhesive cavity specifically designed to hold and manage the colloidal adhesive, ensuring proper distribution and eliminating air bubble formation. The coupler mediates the connection while controlling the adhesive application process.
2Ease of manufacture
If colloidal adhesive is used to splice display modules, then the display modules can be assembled together, but extensive removal of adhesive is required for reworking, making disassembly difficult and potentially damaging modules
Solution Approach 1:
The invention implements a detachable coupler design that transitions the connection from permanent (adhesive-only) to dynamic and reversible. The coupler includes detachable connection mechanisms such as snap-fit structures, magnetic connections, or threaded interfaces that allow easy assembly and disassembly. This dynamic design enables reworking without extensive adhesive removal, protecting the display modules from damage.
Solution Approach 2:
By segmenting the connection system into a detachable coupler component separate from the display modules themselves, the invention allows the adhesive to be confined to a specific cavity within the coupler. This segmentation enables the coupler to be detached and replaced without affecting the modules, facilitating easy repair and reworking.
3Ease of manufacture
If a mechanism for splicing is disposed on the back of each display module, then splicing can be achieved, but visual gaps are created that reduce display quality
Solution Approach 1:
The detachable coupler is designed with differentiated local qualities: transparent or visually matching portions at the front-facing areas to minimize visual gaps, and functional portions (adhesive cavities, connection mechanisms) at the rear or side areas to provide splicing capability. This local quality differentiation maintains display quality while enabling splicing functionality.
Solution Approach 2:
The coupler acts as an intermediary component that bridges adjacent display modules. By positioning the coupler between modules and using transparent or visually matched materials for the visible portions, it minimizes the visual impact of the splicing mechanism while maintaining the structural and adhesive functions needed for assembly.
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
The detachable coupler design enhances the convenience of splicing and detaching the display units, reduces the need for colloidal adhesive, and minimizes the risk of damage during reworking.
Implementation Method 1
a detachable transparent coupler is assembled between two transparent display units
Implementation Method 2
the adhesive space is filled with the colloidal adhesive
Data Source
AI summary
A display device includes two transparent display units and a detachable transparent coupler. Each transparent display unit includes a first substrate, a second substrate and a display component disposed between the first substrate and the second substrate. The detachable transparent coupler is assembled between the two transparent display units. At a first side of the display device, a portion of the detachable transparent coupler protrudes from at least one of the first substrate and the second substrate of one of the two transparent display units.