Variable-Curvature Display Structure With Inner-Sheet Cooling
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Solution Overview
Problem
Existing display devices with curved modules face challenges in space utilization when not in use and lack flexibility in curvature adjustment.
Innovation Solution
A display device with a modular design featuring a display module, inner sheet, cover bottom, and middle cabinet, allowing for adjustable curvature through a bending module and linkage system, enhancing heat dissipation and rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display module is made curved to improve immersion, then sense of immersion is improved, but space utilization deteriorates when not in use
Solution Approach 1:
The display module is designed with variable curvature capability, allowing it to dynamically change between curved and flat states. The curvature changing module enables the display to adapt its shape based on usage requirements, providing immersion when curved and compact storage when flat.
Solution Approach 2:
The support structure is divided into multiple segments including first support portions, second support portions, and a curvature changing module. This segmentation allows independent control of different regions of the display module, enabling flexible curvature adjustment while maintaining structural integrity.
2Volume of moving object
If the display module is made flat for compact storage, then space utilization is improved, but sense of immersion deteriorates
Solution Approach 1:
The display module transitions from a static flat or curved design to a dynamic variable curvature design. The curvature changing module allows the display to switch between flat state for compact storage and curved state for enhanced immersion, resolving the trade-off between these two requirements.
3Strength
If the inner sheet is made rigid for structural integrity, then strength is improved, but heat dissipation deteriorates
Solution Approach 1:
The inner sheet is designed with non-uniform thickness, featuring first inner sheet portions with greater thickness for structural support and second inner sheet portions with reduced thickness for enhanced heat dissipation. This local quality variation allows simultaneous achievement of strength and thermal management.
Solution Approach 2:
The inner sheet incorporates through-holes or porous structures that facilitate heat dissipation while maintaining structural integrity. These openings allow heat to escape from the display module without significantly compromising the overall strength of the support structure.
4Device complexity
If the inner sheet is made thin for compact design, then device complexity is reduced, but rigidity deteriorates
Solution Approach 1:
The inner sheet employs variable thickness design where critical support areas have increased thickness for rigidity while other areas are thinner for compactness. This local differentiation allows the structure to be both compact and sufficiently rigid where needed.
Solution Approach 2:
The support structure combines materials with different properties to achieve both compactness and rigidity. The composite construction allows thin sections for compact design while incorporating reinforcing elements or materials that provide necessary structural strength.
Data Source
Figure 1
Figure 2(a)~2(b)
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AI summary
A display device comprises: a display module that outputs an image; a drive IC positioned at the rear surface of one end of the display module; an inner sheet disposed on the rear surface of the display module to form a first gap; a cover bottom disposed on the rear surface of the inner sheet to form a second gap; and a middle cabinet that covers the circumferences of the display module, the inner sheet, and the cover bottom and forms a side exterior, wherein the inner sheet includes: a first region protruding in a direction toward the rear surface at a position corresponding to the drive IC; and a plurality of holes formed in the first region, wherein the holes extend vertically and are spaced apart from each other in a horizontal direction. The display device can be used in a form desired by a user since the display module can be transformed into a flat state or a bent state.