Display Device Power Mode Configuration for Low-Power State Hardware
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Solution Overview
Problem
Stand-alone display devices face challenges in meeting stringent environmental regulations regarding power consumption when in a low-power state, as they are often configured to power off additional hardware components when the display is off, leading to poor user experience due to unexpected behavior.
Innovation Solution
Implementing a power-saving mode where at least one hardware component, such as a USB port, remains powered on when the display hardware is off, with a default configuration that can be changed by the user to keep additional hardware components operational during low-power states, and providing a user interface to inform and allow configuration of power modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the display device powers off additional hardware components when the display is off to meet environmental regulations, then power consumption is reduced, but user experience deteriorates due to unexpected behavior
Solution Approach 1:
The patent segments the power management into two distinct modes: a first power mode where additional hardware components are powered off when the display is off (to meet energy regulations), and a second power mode where these components remain powered on (to maintain user experience). This segmentation allows the system to selectively apply different power management strategies based on user needs.
Solution Approach 2:
The patent implements dynamic power mode switching that allows the display device to transition between the first power mode (energy-saving) and the second power mode (user-friendly) based on user selection. This dynamic capability enables the system to adapt its behavior rather than being fixed in one approach, resolving the contradiction between energy efficiency and user experience.
2Ease of operation
If the display device keeps additional hardware components powered on during low-power states, then user experience improves, but power consumption increases violating environmental regulations
Solution Approach 1:
The patent makes the power management system universal by implementing multiple power modes that can serve different functions. The first power mode serves the function of meeting environmental regulations, while the second power mode serves the function of maintaining user experience. The system can universally apply either mode based on user selection, making it adaptable to different operational contexts.
3Loss of energy
If the display device uses a default configuration that powers off additional hardware, then environmental regulations are met, but user expectations are not aligned causing unexpected behavior
Solution Approach 1:
The patent applies preliminary action by providing a user interface that informs users about the default power mode behavior before they use the device. This allows users to提前 (in advance) select their preferred power mode, ensuring that the device behaves according to their expectations from the start, rather than surprising them with unexpected shutdown behavior.
Solution Approach 2:
The patent implements feedback by displaying information to the user about the current power mode and its effects on hardware components. This feedback loop allows users to understand what will happen when the display turns off, and to make informed decisions about which power mode to use, aligning the device behavior with user expectations.
Data Source
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AI summary
The first time a display device is turned on, is turned on after it has been factory reset, or is factory reset, the display device displays a message indicating that in a default and current power mode of the display device, a hardware component of the display device different than display hardware is powered off when the display device enters a low-power state. A user is permitted to have the hardware component remain powered on when the display device enters the low-power state.