Display Module Elastic Positioning for Light Guide Plate Assembly
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Solution Overview
Problem
The assembly of display modules with light guide plates is challenging due to increased width and reduced manufacturing yield caused by dimensional tolerance issues, leading to improper attachment or slippage during assembly.
Innovation Solution
A fixing/positioning structure is introduced that uses elastic members to secure light guide plates within a housing of the rear frame member, allowing for precise engagement with the frame members, thereby facilitating assembly and improving yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If light guide plates are secured using conventional attachment methods, then assembly is straightforward, but dimensional tolerance issues cause improper attachment or slippage, reducing manufacturing yield
Solution Approach 1:
The elastic members are designed with specific elastic coefficients and dimensional parameters that allow them to deform within a controlled range. This enables the fixing structure to accommodate dimensional variations in light guide plates while maintaining secure attachment, effectively resolving the contradiction between attachment reliability and dimensional tolerance requirements
Solution Approach 2:
The elastic members provide dynamic adjustment capability, allowing the fixing structure to adapt to dimensional variations in light guide plates through elastic deformation. This dynamic characteristic enables the system to maintain reliable attachment despite manufacturing tolerances, preventing slippage while accommodating size variations
2Measurement precision
If light guide plates are secured with tight fixation, then positioning accuracy improves, but assembly difficulty increases due to reduced tolerance for misalignment
Solution Approach 1:
The elastic members enable dynamic positioning adjustment during assembly. The elastic deformation allows for self-alignment and tolerance compensation, making assembly easier while maintaining accurate final positioning of the light guide plates within the housing
Solution Approach 2:
The elastic members are pre-designed with appropriate elasticity to cushion against positioning errors and misalignments that may occur during assembly. This beforehand cushioning effect allows for easier assembly by accommodating typical misalignment scenarios while still achieving accurate final positioning
3Ease of operation
If conventional fixing structures are used, then device complexity is low, but assembly work is difficult due to slippage and improper attachment
Solution Approach 1:
The elastic members provide self-adjusting and self-locking functionality during assembly. The elastic deformation automatically compensates for dimensional variations and secures the light guide plates in place without requiring complex adjustment procedures, thereby simplifying assembly work while using a relatively simple fixing structure
Solution Approach 2:
The elastic members act as intermediaries between the rigid housing and the light guide plates. This intermediary element absorbs dimensional variations and provides a buffer that facilitates easier assembly while maintaining a simple overall structure, preventing direct rigid contact that would cause slippage issues
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 structure enhances the assembly process by ensuring accurate positioning of light guide plates, reducing slippage, and improving the manufacturing yield of display modules.
Implementation Method 1
an elastic member disposed between the light guide plate and the housing, and pushing the light guide plate toward the housing
Data Source
AI summary
A display module includes a plurality of display panels, a backlight module including a plurality of light guide plates disposed in back of the plurality of display panels, and a light emitting element disposed around the plurality of light guide plates. The display module also includes a middle frame member that is disposed in back of the plurality of display panels and in front of the plurality of light guide plates, and a rear frame member that is disposed in back of the plurality of light guide plates. The display module further includes a first elastic member that is interposed between the housing and one of the plurality of light guide plates at a corner part of the housing, and a second elastic member that is interposed between the housing and one of the plurality of light guide plates at a central upper part of the housing.