Optical Plate Holder Coupling Structure for Shock-Stable Displays
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Solution Overview
Problem
Existing display devices face challenges in maintaining reliable coupling between the holder of a diffusion plate and the frame, particularly under external shocks and temperature changes, while minimizing light leakage and manufacturing costs.
Innovation Solution
A coupling structure is introduced, featuring a holder with protrusions and a coupling portion that engages with the frame, allowing secure attachment without additional members like double-sided tape, and guiding the coupling with a frame that supports the holder through protrusions and coupling portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a holder is coupled to a frame using separate members like double-sided tape, then the coupling can be achieved, but the manufacturing cost increases and the structure becomes more complex
Solution Approach 1:
The holder is designed with coupling portions that are integrated directly into the holder body, eliminating the need for separate coupling members like double-sided tape. The holder includes first and second coupling portions that extend from the holder body to engage with the frame, merging the holding function and coupling function into a single integrated component.
Solution Approach 2:
The holder is designed to couple to the frame using its own integrated coupling portions without requiring external adhesive members or separate coupling components. The holder body itself provides the coupling mechanism through protrusions that engage with recesses in the frame, making the structure self-sufficient.
2Area of stationary object
If the holder occupies a relatively small area, then the device can be made more compact, but the coupling reliability decreases
Solution Approach 1:
The holder is designed with concentrated coupling portions at specific locations on its surface. The first coupling portion includes a first protrusion and the second coupling portion includes a second protrusion, creating localized engagement points that provide sufficient coupling reliability even when the overall holder area is minimized.
3Ease of manufacture
If the holder is coupled to the frame without additional members, then the manufacturing cost is reduced, but the coupling stability under external shock and temperature change may be compromised
Solution Approach 1:
The coupling portions are designed with curved surfaces that facilitate engagement and maintain contact under varying conditions. The protrusions and corresponding recesses are designed with curved interfaces that allow for thermal expansion and contraction while maintaining coupling stability.
Solution Approach 2:
The coupling structure is designed to accommodate thermal expansion and contraction of the holder and frame through the geometry of the coupling portions. The protrusions and recesses are shaped to allow for dimensional changes while maintaining engagement, ensuring stability under temperature variations.
Data Source
AI summary
A display device is disclosed. The display device may include: a display panel; a frame positioned behind the display panel; a light source providing light to the display panel; an optical plate positioned between the display panel and the light source; a frame which is opposite to the display panel with respect to the optical plate and on which the optical plate is seated; and a holder adjacent to one side of the optical plate and coupled onto the frame, wherein the holder comprises: a plurality of protrusions formed at one surface of the holder that faces the one side of the optical plate; and a coupling portion protruding from the holder toward the frame, passing through the frame, and engaged with a rear surface of the frame.