Display Module Frame Groove and High-Viscosity Glue Adhesion
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Solution Overview
Problem
Conventional display modules face issues with insufficient adhesion, particularly for larger display panels due to limited adhesiveness of traditional adhesive tapes, and for smaller panels, the smaller tape width leads to inadequate adherence.
Innovation Solution
The display module design incorporates a frame with a side wall and a supporting part featuring a groove along the side wall, where the display panel's side face forms a gap with the side wall, filled with glue of high viscosity (>30000 cps) to enhance adhesion, and optionally includes a light-shieldable glue within the groove for improved adherence and moisture protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional adhesive tapes are used to adhere the display panel to the frame, then the assembly process is simple, but the adhesion strength is insufficient for large scale display devices
Solution Approach 1:
The patent changes the key parameter of adhesive viscosity from conventional low-viscosity adhesive tapes to high-viscosity adhesive (>30000 cps). This parameter change allows the adhesive to maintain high adhesion strength while being applied in a controlled manner, resolving the contradiction between assembly simplicity and adhesion strength.
Solution Approach 2:
The patent transitions from using adhesive tapes only at the perimeter (1D linear attachment) to filling the entire gap between the display panel and frame with high-viscosity adhesive (2D area coverage). This dimensional expansion significantly increases the adhesion area and overall bonding strength while maintaining assembly simplicity through automated dispensing.
2Length of stationary object
If smaller width adhesive tapes are used for middle and small scale display devices to comply with less frame width, then the frame width requirement is met, but the adhering area becomes smaller and adhesion becomes insufficient
Solution Approach 1:
The patent expands the adhesive application from the traditional perimeter-only approach to filling the entire gap area between the display panel and frame. This transforms the adhesion from a 1D linear bond to a 2D area bond, compensating for the reduced frame width by maximizing the adhesive coverage area within the available space.
Solution Approach 2:
The patent applies high-viscosity adhesive specifically in the gap region where adhesion is most critical, concentrating the bonding strength where needed rather than relying on extended tape width. This local quality enhancement ensures strong adhesion even with compact frame dimensions.
3Reliability
If high viscosity glue (>30000 cps) is used to fill the gap between the side wall and side face, then adhesion strength is enhanced, but the glue application becomes more difficult
Solution Approach 1:
The patent prepares the gap space in advance by defining precise dimensions and ensuring proper alignment between the display panel and frame before adhesive application. This preliminary preparation ensures that even high-viscosity adhesive can be effectively distributed and cured, maintaining ease of manufacture while achieving superior adhesion.
Solution Approach 2:
The high-viscosity adhesive acts as an intermediary material that bridges the gap between the display panel and frame. Its specialized properties (high viscosity, light-shielding capability) allow it to fill the gap completely and create a strong bond without requiring complex application equipment or procedures, thus maintaining manufacturing ease while enhancing adhesion.
4Object-affected harmful factors
If light-shieldable glue is used within the groove, then moisture protection and light blocking are improved, but the material selection and application process become more complex
Solution Approach 1:
The patent selects a high-viscosity adhesive that simultaneously provides multiple functions: structural adhesion, light shielding, and moisture protection. This multi-functional adhesive eliminates the need for separate materials for each protection function, reducing overall device complexity while achieving comprehensive protection against harmful factors.
Solution Approach 2:
The patent combines the adhesive function with the protective function by using light-shieldable high-viscosity glue that performs both bonding and environmental protection. This merging of functions into a single material simplifies the overall system by eliminating the need for additional protective layers or separate sealing materials.
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 strengthens the adherence between the display panel and the frame, reduces the need for traditional adhesive tapes, and prevents moisture ingress, effectively addressing the issues of insufficient adhesion and tape limitations.
Implementation Method 1
The glue is filled in the gap and adheres the side wall to the side face
Implementation Method 2
The glue is light-shieldable
Data Source
AI summary
A display module having an improved assembly structure is provided. The display module includes a frame, a display panel, and a glue. The frame has a side wall and a supporting part, wherein the supporting part has a supporting surface and the side wall is formed on the periphery of the supporting surface. A groove is formed on the supporting surface adjacent to the side wall and is distributed along the side wall. The display panel is disposed within the frame and has a bottom face and a side face. The bottom face is supported by the supporting surface of the supporting part. The side face faces the side wall and forms a gap with the side wall. The glue is filled in the gap and adheres the side wall to the side face.