Head-Mounted Display Thermal Management via Dynamic Luminance Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Head-mounted electronic devices face challenges in managing heat generation due to high-resolution displays, which can lead to increased power consumption and temperature issues, affecting their performance and user experience.
Innovation Solution
Incorporating a sensor module to measure temperature at specific positions on the display module, allowing the device to adjust luminance or display area based on temperature readings, thereby reducing power consumption and heat generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display module operates at high luminance to provide high-resolution display, then display quality is improved, but heat generation and power consumption increase
Solution Approach 1:
The patent implements dynamic luminance adjustment by continuously monitoring temperature through sensor modules and adjusting display brightness in real-time. The display module transitions from static high luminance operation to dynamic adaptive operation, reducing brightness when temperature thresholds are exceeded while maintaining optimal display quality within safe temperature ranges.
Solution Approach 2:
The system employs temperature sensor modules positioned at specific locations on the display module to provide continuous feedback on thermal conditions. This feedback loop enables the control system to adjust luminance settings based on actual temperature measurements, creating a closed-loop control mechanism that prevents overheating while maintaining display performance.
2Illumination intensity
If the display module operates at high luminance, then display quality is improved, but power consumption increases
Solution Approach 1:
The display system transitions from static high-power operation to dynamic power management. Luminance levels are adjusted in real-time based on temperature conditions, allowing the display to operate at maximum brightness only when necessary and reducing power consumption when thermal constraints require lower luminance settings.
Solution Approach 2:
The system changes the operating parameters of the display module by adjusting luminance levels according to temperature measurements. This parameter adaptation allows the display to optimize the balance between visual quality and power consumption, selecting appropriate brightness levels that satisfy both display requirements and thermal constraints.
3Measurement precision
If temperature monitoring is implemented at multiple positions, then thermal management precision is improved, but device complexity increases
Solution Approach 1:
The temperature monitoring system is segmented into multiple independent sensor modules positioned at different locations on the display module. Each sensor module independently monitors local temperature conditions, enabling precise thermal mapping without requiring a complex centralized monitoring system. This segmentation allows targeted thermal management of specific high-risk areas.
Solution Approach 2:
The patent introduces temperature sensor modules as intermediary elements between the display module and the control system. These sensors act as mediators that convert thermal information into electrical signals for processing, simplifying the overall system architecture while enabling precise multi-point temperature monitoring and 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
This approach effectively manages heat and power usage, enhancing the device's performance and user experience by dynamically adjusting display settings in response to temperature changes.
Implementation Method 1
a sensor module configured to measure a temperature of the display module at one or more positions
Data Source
AI summary
An electronic device is provided. The electronic device includes an optical lens, a display module configured to display a screen through the optical lens, a sensor module configured to measure a temperature of the display module at one or more positions, and memory, and at least one processor. The instructions that, when executed by the at least one processor, cause the electronic device to control the display module to display a designated screen, obtain at least one temperature respectively corresponding to the one or more positions from the sensor module while displaying the designated screen, and based on the obtained at least one temperature, change a luminance of at least a part of the designated screen or change a display area of the display module based on the obtained at least one temperature.