Sensor-Based Display Power Control for Predicted User Visibility
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Solution Overview
Problem
Electronic devices operating in always-on display mode consume excessive power when the display is not visible to the user, which is particularly problematic for battery-powered devices.
Innovation Solution
A suppression management system and condition pre-processor predict when the electronic display is not visible to the user, controlling power states to reduce consumption by powering off the display during non-use, using sensors and machine learning to anticipate user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the electronic display is always powered on to maintain always-on display mode, then the display can continuously present images to users, but the power consumption increases significantly
Solution Approach 1:
The condition pre-processor predicts future visibility conditions in advance and generates control signals before the actual need arises. By analyzing sensor data (accelerometer, ambient light sensor) and user behavior patterns, the system proactively determines when the display will be needed and prepares accordingly, allowing the display to be powered off during predicted non-visibility periods while maintaining the always-on display experience when needed.
2Use of energy by moving object
If the electronic display is powered off to reduce power consumption, then battery life is extended, but the display cannot present images when users need to view them
Solution Approach 1:
The system continuously monitors sensor data (accelerometer detecting motion patterns, ambient light sensor detecting light levels) and uses this feedback to dynamically adjust display power states. The condition pre-processor analyzes this feedback in real-time to predict visibility conditions, creating a closed-loop control system that reliably determines when to power the display on or off based on actual user behavior patterns rather than fixed schedules.
3Use of energy by moving object
If sensors and condition pre-processing are added to predict display visibility, then power consumption is optimized, but the device complexity increases
Solution Approach 1:
The condition pre-processor serves multiple functions: it processes sensor data from various sources (accelerometer, ambient light sensor), predicts user behavior patterns, generates control signals for display power management, and adapts to different usage scenarios. By consolidating these diverse functions into a single multi-functional component, the system achieves intelligent power management without proportionally increasing complexity.
Data Source
AI summary
The present disclosure describes systems and methods associated with selective powering of an electronic display in response to sensed data indicating that the electronic display is not visible. By selectively enabling the electronic display between power states based on whether the electronic display is visible, a perceivably always-on electronic display may be provided without the electronic display being always-on, thereby balancing consumer interests with technical requirements of a relatively long battery life and correspondingly low power consumption.