Rollable Display Heat Dissipation via Dynamic Size Adjustment
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Solution Overview
Problem
Rollable and slidable electronic devices face challenges in heat dissipation due to concentrated heat generation in specific areas, leading to inefficient cooling across the entire device.
Innovation Solution
An electronic device with a flexible display that can expand or reduce its size based on temperature and operation state, utilizing multiple housings with sensors and processors to control the sliding operation and manage heat dissipation by adjusting the display size and component operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the display size is increased to provide expanded screen services, then the screen area is improved, but the heat dissipation efficiency deteriorates due to concentrated heat generation in specific areas
Solution Approach 1:
The display device dynamically adjusts its size between expanded and reduced states based on operational conditions. When heat generation is detected in specific areas, the device transitions to a reduced size state to improve heat dissipation efficiency, while maintaining the ability to expand to a larger screen area when cooling conditions are favorable.
Solution Approach 2:
The physical parameter of display size is changed between two states (expanded and reduced) to control heat dissipation. This parameter change allows the device to optimize the balance between screen area and thermal management by selecting the appropriate size state based on real-time temperature and operational conditions.
2Productivity
If the display is kept in an expanded state to maximize screen utility, then the screen area is improved, but the heat concentration in specific areas worsens
Solution Approach 1:
The display dynamically switches between expanded and reduced states based on real-time monitoring of heat generation and operational conditions. This dynamic adjustment ensures that the display maintains maximum utility when heat concentration is manageable, while automatically reducing size when heat concentration becomes problematic.
Solution Approach 2:
The system incorporates feedback mechanisms that monitor temperature and operational state, then use this information to control the display size. When sensors detect high heat concentration in specific areas, the feedback loop triggers a transition to the reduced size state to alleviate thermal stress.
3Temperature
If the display size is reduced to improve heat dissipation, then the temperature control is improved, but the screen area deteriorates
Solution Approach 1:
The display size is dynamically adjusted based on thermal conditions rather than being fixed. When temperature control requirements are high, the display transitions to a reduced size state to improve heat dissipation, while maintaining the capability to expand to full screen area when thermal conditions permit.
Solution Approach 2:
The display size parameter is changed between expanded and reduced states as a control mechanism for temperature management. This parameter change allows the device to prioritize thermal control when necessary while maintaining full screen area availability when cooling conditions are adequate.
Data Source
AI summary
An electronic device according to an embodiment of the disclosure may include: two or more housings, a flexible display mounted to one or more housings among the two or more housings and configured to be expanded or reduced according to a sliding operation of one or more housings among the two or more housings, one or more sensors configured to acquire one or more pieces of temperature information from the electronic device, and at least one processor, comprising processing circuitry, operatively connected to the one or more sensors and the flexible display, wherein at least one processor, individually and/or collectively, is configured to: identify at least one of operation state information or one or more pieces of temperature information acquired from the electronic device, identify expanding state information of the flexible display, and control the electronic device to change a size of the flexible display by sliding the one or more housings based on at least one of the operation state information or the one or more pieces of temperature information.