Near-Eye Display Hinge Cooling for Foldable Temple Heat Dissipation
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Solution Overview
Problem
Near-eye display devices face issues with poor heat dissipation due to limited space and increased brightness demands, leading to inefficiencies in existing heat dissipation structures.
Innovation Solution
A near-eye display device design featuring a temple that can be folded or unfolded, incorporating a first and second heat transfer plate that separate or contact based on the temple's position, allowing for effective heat dissipation through a hinge mechanism and solid heat-conducting materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a vapor chamber heat dissipation structure is extended to the temple, then heat dissipation performance is improved, but the temple cannot be folded and device portability deteriorates
Solution Approach 1:
The heat dissipation structure is divided into two separate heat dissipation plates: a first heat dissipation plate integrated with the main frame and a second heat dissipation plate integrated with the temple. These plates can separate when the temple is folded and contact when unfolded, allowing the temple to be foldable while maintaining heat dissipation functionality.
Solution Approach 2:
The heat dissipation structure transitions from a static integrated design to a dynamic separable design. The second heat dissipation plate on the temple can move relative to the first heat dissipation plate on the main frame, separating when the temple is folded and contacting when unfolded, enabling both portability and effective heat dissipation.
2Illumination intensity
If brightness is increased for better display quality, then image quality is improved, but heat generation increases and heat dissipation becomes insufficient
Solution Approach 1:
The heat dissipation function is extracted and extended to the temple structure through the second heat dissipation plate. This allows the heat dissipation system to operate independently from the display module, effectively managing heat generated by high-brightness displays without compromising image quality.
Solution Approach 2:
The temple structure serves dual functions: it provides the structural framework for the display device and simultaneously acts as a heat dissipation pathway through the integrated second heat dissipation plate. This multi-functionality allows the temple to handle both structural and thermal management roles.
3Temperature
If complex heat dissipation structures are implemented, then heat dissipation performance is improved, but manufacturing cost and device complexity increase
Solution Approach 1:
The heat dissipation plates are merged with the existing main frame and temple structures. The first heat dissipation plate is integrated into the main frame, and the second heat dissipation plate is integrated into the temple, eliminating the need for separate complex heat dissipation components and reducing overall device complexity.
Solution Approach 2:
Heat dissipation functionality is localized to specific areas where heat generation occurs. The first heat dissipation plate is positioned at the light source location in the main frame, and the second heat dissipation plate is positioned on the temple, providing targeted heat dissipation without requiring complex system-wide thermal management.
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
The design achieves improved heat dissipation, maintains reliability, and reduces production costs while enabling easy portability and usability, addressing the limitations of current heat dissipation methods.
Implementation Method 1
The first heat transfer plate is disposed in the main frame and connected to the optical engine module. The second heat transfer plate is disposed in the temple... When the temple is in the unfolded state, the second heat transfer plate is in contact with the first heat transfer plate
Data Source
AI summary
A near-eye display device includes a main frame, a temple, an optical engine module, a first heat transfer plate, and a second heat transfer plate. The temple is pivotally connected to the main frame, and the optical engine module is disposed in the main frame. The first heat transfer plate is disposed in the main frame and connected to the optical engine module. The second heat transfer plate is disposed in the temple. The temple is adapted to be rotated relative to the main frame and switched between a folded state and an unfolded state. When the temple is in the folded state, the second heat transfer plate and the first heat transfer plate are separated from each other. When the temple is in the unfolded state, the second heat transfer plate is in contact with the first heat transfer plate.