Hybrid Display Assembly with Self-Lit Notification Area
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Solution Overview
Problem
Modern electronic devices with larger, high-resolution displays face challenges in prolonging battery life due to increased power consumption for illumination, especially when needing to maintain notifications in sleep mode without fully powering down.
Innovation Solution
The implementation of a display assembly that combines an externally-lit display with a self-lit display, where the externally-lit display is powered down during sleep mode, and the self-lit display, such as an organic light emitting diode area, is used to display notifications, reducing power consumption by utilizing a backlighting source only when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a larger, high-resolution display is used, then display quality and functionality are improved, but power consumption increases
Solution Approach 1:
The display is segmented into two distinct types: an externally-lit display (LCD) for full-screen content and a self-lit display (OLED) for notifications. This segmentation allows the system to use only the self-lit display for simple notifications, avoiding the high power consumption of the externally-lit display while maintaining display quality where needed.
Solution Approach 2:
The system dynamically switches between display modes based on operational state. During sleep mode, only the self-lit display is activated for notifications. During active mode, the externally-lit display is activated for full functionality. This dynamic adaptation optimizes power consumption based on actual usage requirements.
2Use of energy by moving object
If the externally-lit display is powered down during sleep mode, then power consumption is reduced, but notification display capability is lost
Solution Approach 1:
The self-lit display acts as an intermediary element between the powered-down externally-lit display and the need for notification display. It provides a dedicated pathway for displaying notifications during sleep mode without requiring the externally-lit display to be active, thus maintaining notification capability while preserving power savings.
3Illumination intensity
If the backlighting source is continuously active, then display visibility is maintained, but battery life is reduced
Solution Approach 1:
The backlighting source operates periodically rather than continuously. It is activated only when the externally-lit display needs to be viewed during active mode, and remains off during sleep mode when only the self-lit display is used. This periodic operation significantly extends battery life while maintaining display visibility when needed.
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 approach allows for power-efficient notification display in sleep mode, extending battery life by minimizing the use of the backlighting source and optimizing power usage, while maintaining functionality for important alerts.
Implementation Method 1
the self-lit display, such as an organic light emitting diode area
Implementation Method 2
an externally-lit display having first and second polarizing layers and a backlighting source
Data Source
AI summary
A method and apparatus performed by an electronic device for operating a display assembly of the electronic device includes a display assembly having an externally-lit display with first and second polarizing layers and a backlighting source. The first polarizing layer is positioned between the backlighting source and the second polarizing layer. The display assembly also includes a self-lit display positioned between the first and second polarizing layers of the externally-lit display.