Dual Display Mobile Device Power Management
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Solution Overview
Problem
Conventional mobile electronic devices wastefully consume electric power due to unnecessary activation of display modules for notifications, even for non-critical events.
Innovation Solution
A mobile electronic device equipped with a first display and a second display that can switch between transmissive and reflective states, along with a storage medium that determines whether to use the first or second display for notifications based on predefined conditions, allowing for power-efficient notification delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display module is turned on for all interrupt events, then notification delivery is ensured, but electric power is wastefully consumed
Solution Approach 1:
The display module is segmented into two distinct displays: a first display for critical notifications and a second display for non-critical notifications. This segmentation allows the system to differentiate between notification types and activate only the appropriate display, reducing unnecessary power consumption while ensuring reliable notification delivery for important events.
Solution Approach 2:
Different displays are assigned different qualities or characteristics based on notification importance. The first display is activated for critical notifications requiring user attention, while the second display handles non-critical notifications. This local differentiation of display activation quality optimizes power consumption by activating displays only when necessary based on notification severity.
2Device complexity
If a single display is used for all notifications, then device complexity is reduced, but power consumption increases due to unnecessary activation
Solution Approach 1:
The display system is segmented into multiple displays with different activation conditions. While this increases device complexity, it enables selective activation of displays based on notification importance, thereby reducing energy loss from unnecessary display activation.
Solution Approach 2:
The display activation system is made dynamic by introducing conditions for selective display activation based on notification characteristics. The controller dynamically determines which display to activate based on the interrupt event type, optimizing the balance between device complexity and energy efficiency.
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
The solution effectively reduces power consumption by using the second display for non-critical notifications and the first display for important events, thereby optimizing energy use while maintaining effective notification delivery.
Implementation Method 1
a second display overlaid on the first display and switchable between a transmissive state in which incident light is allowed to be transmitted and a reflective state in which incident light is allowed to be reflected
Data Source
AI summary
There is provided a mobile electronic device including a first display, a second display overlaid on the first display and switchable between a transmissive state in which incident light is allowed to be transmitted and a reflective state in which incident light is allowed to be reflected, a storage configured to store therein a notification method determining condition for determining whether to provide notification of an interrupt event by using the first display or provide the notification of the interrupt event by using the second display, and at least one controller configured to, upon occurrence of the interrupt event, provide the notification of the interrupt event by using the first display or provide the notification of the interrupt event by using the second display, according to the notification method determining condition.