Multi-Layer Display Panel Power Management via Controller State Switching
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Solution Overview
Problem
One-layer display screens in electronic devices often result in unsatisfactory user experiences when failures occur or user requirements are not met, leading to inadequate visual representation and reduced service life.
Innovation Solution
A display device with two layers of display panels and controllers, where the master and slave controllers switch between operating and hibernating states to control the panels, allowing for time-division display and power management, ensuring that the display meets user requirements while minimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a one-layer display screen is used, then the device structure is simple and manufacturing is easy, but the user experience deteriorates when screen failure occurs or display requirements are not satisfied
Solution Approach 1:
The display system is segmented into multiple independent display layers (first display layer and second display layer), each controlled by separate controllers. This segmentation allows independent operation of each layer, so when one layer fails or cannot meet display requirements, the other layer can continue to provide display functionality, thereby improving reliability while maintaining manufacturing feasibility through modular construction
2Reliability
If multiple display layers are added to improve user experience, then display reliability is improved, but power consumption increases
Solution Approach 1:
The system dynamically switches between different display layers based on operational state. During active use, the high-definition first display layer is activated. During standby or low-activity states, the system switches to the low-power second display layer. This dynamic adaptation allows the system to maintain display reliability across different scenarios while optimizing power consumption by using the appropriate display layer for each operational context
Solution Approach 2:
The system changes operational parameters by switching between different display layers with different power consumption characteristics. The first display layer operates at higher power for full HD quality, while the second display layer operates at lower power for basic display needs. This parameter change approach allows the system to adjust power consumption levels based on actual display requirements, resolving the contradiction between reliability and energy use
3Adaptability or versatility
If multiple controllers are used to control respective display panels, then display adaptability is improved, but device complexity increases
Solution Approach 1:
The controllers are designed with multi-functionality to handle various display modes and operational states. Each controller can independently manage its associated display layer and can also coordinate with the other controller to implement full-screen, half-screen, and picture-in-picture modes. This universal design approach allows the system to achieve high adaptability while avoiding the need for additional dedicated control components, thereby limiting the increase in device complexity
Data Source
AI summary
The present disclosure relates to a display device. The display device includes: a display module, which comprises at least two layers of display panels; and at least two controllers, which are connected to respective display panels of the at least two layers of display panels of the display module, each controller of the at least two controllers is configured to, in an operating state, control one respective display panel connected to each controller to display.