Stacked Display System Resolving Image Quality and Power Trade-off
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Solution Overview
Problem
Display devices face challenges in balancing high image quality with low power consumption, particularly in scenarios where continuous display is not necessary, leading to wasteful energy usage.
Innovation Solution
A dual-display apparatus system where a high-image-quality display apparatus and a low-power, multi-stable display apparatus are stacked and configured to operate in different time periods, with the low-power apparatus using bi-stable display technology that reduces power consumption by maintaining images without continuous voltage and scattering ambient light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a high-image-quality display apparatus is used continuously, then display image quality is improved, but power consumption increases
Solution Approach 1:
The display system is segmented into two distinct display apparatuses: a first display apparatus optimized for high image quality and a second display apparatus optimized for low power consumption. This segmentation allows the system to selectively activate the appropriate display based on viewing conditions, thereby resolving the contradiction between image quality and power consumption by distributing these functions across separate components.
Solution Approach 2:
The system dynamically switches between the first and second display apparatuses based on real-time conditions such as viewing distance, ambient light, and user interaction. The controller adjusts which display is active, enabling the system to optimize the balance between image quality and power consumption dynamically rather than being fixed in one state.
2Adaptability or versatility
If a single display apparatus is used for all scenarios, then device complexity is reduced, but adaptability to different display requirements deteriorates
Solution Approach 1:
The dual-display system provides universal adaptability by handling multiple display scenarios with a single integrated system. The first display apparatus serves high-quality viewing needs, while the second serves power-saving needs, making the overall system universally applicable to diverse usage conditions without requiring multiple separate devices.
Solution Approach 2:
The second display apparatus is positioned behind the first display apparatus, creating a nested configuration where the lower-power display is embedded within the same structural footprint as the high-quality display. This nesting approach minimizes the overall device complexity by sharing the same form factor and control infrastructure while providing differentiated display capabilities.
3Use of energy by moving object
If the low-power display apparatus is used, then power consumption is reduced, but display image quality deteriorates
Solution Approach 1:
Each display apparatus is optimized for its specific function: the first display apparatus is designed with high image quality characteristics for detailed viewing, while the second display apparatus is designed for low power consumption with acceptable image quality. This local quality optimization allows each component to excel at its designated task without compromising the overall system performance.
Solution Approach 2:
The second display apparatus provides a simplified copy or alternative representation of the display content, sufficient for scenarios where high image quality is not critical. This copying approach allows the system to use the lower-power display for routine or distant viewing while reserving the high-quality display for detailed inspection, effectively managing the trade-off between image quality and power consumption.
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 configuration allows for user-selectable display modes that meet diverse requirements, reducing energy waste by using the low-power apparatus for non-critical displays and the high-image-quality apparatus for detailed viewing, while maintaining effective image presentation.
Implementation Method 1
the second display apparatus transmits light in a non-display state
Data Source
AI summary
A display apparatus includes a first display apparatus and a second display apparatus that are stacked. A display image quality of the first display apparatus in a display state is higher than a display image quality of the second display apparatus in a display state, and a power consumption of the second display apparatus in the display state is lower than a power consumption of the first display apparatus in the display state.