Display Device Diffuser Plate Guide Protrusion Groove Assembly
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Solution Overview
Problem
Display devices face challenges in securely assembling and maintaining the diffuser plate, particularly in preventing inclination and separation due to thermal expansion, which affects the assembly convenience and stability of the device.
Innovation Solution
A display device design featuring a guide with a seated diffuser plate, where a protrusion on the diffuser plate or guide is detachably inserted into a corresponding groove, ensuring proper alignment and preventing separation during movement or orientation changes, while allowing for thermal expansion considerations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the diffuser plate is securely fixed to the guide, then assembly stability is improved, but thermal expansion causes inclination and separation
Solution Approach 1:
The connection between the diffuser plate and guide is divided into discrete protrusion-groove pairs rather than a continuous fixed structure. This segmentation allows independent movement of each component while maintaining overall assembly stability, accommodating thermal expansion without causing inclination or separation.
Solution Approach 2:
The protrusion-groove connection provides a dynamic rather than rigid fixation. The grooves can move relative to the protrusions within certain limits, allowing the assembly to adapt to thermal expansion and contraction of the diffuser plate while maintaining proper alignment and preventing complete separation.
2Object-affected harmful factors
If the diffuser plate is freely positioned to allow thermal expansion, then thermal stress is reduced, but assembly convenience and alignment precision deteriorate
Solution Approach 1:
The protrusion and groove structures are positioned asymmetrically on the diffuser plate edges, creating a unique alignment configuration. This asymmetric design provides clear orientation cues during assembly, ensuring the diffuser plate is correctly positioned while still allowing for thermal expansion movement.
Solution Approach 2:
The protrusion-groove interface acts as an intermediary mechanism between the diffuser plate and guide. It provides initial alignment and guidance during assembly, then allows controlled movement to accommodate thermal expansion, thus maintaining both assembly convenience and thermal stress relief.
3Object-affected harmful factors
If the diffuser plate is completely separated from the guide during movement, then thermal expansion is accommodated, but reliability and structural integrity worsen
Solution Approach 1:
The protrusion-groove connection is pre-configured to provide initial engagement and alignment before any thermal expansion occurs. This preliminary connection ensures structural integrity is maintained during normal operation, while the design inherently allows for movement during thermal cycles without complete separation.
Data Source
AI summary
A display device including a display panel; a light source providing light to the display panel; a diffuser plate located between the display panel and the light source; and a guide including a side part covering a side surface of the diffuser plate, and a protruding inner part for seating the diffuser plate. Further, a lower side of one of the diffuser plate or the side part of the guide includes a protrusion portion and a lower side of the other one of the diffuser plate and the side part of the guide includes a groove portion engaging the protrusion portion, and outer portions of the lower side of the diffuser plate directly contact corresponding outer portions of the side part of the guide, while a gap exists between the protrusion portion and the groove portion.