OLED Display Screen Size Reduction for Power Optimization
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Solution Overview
Problem
OLED displays face challenges in power efficiency, particularly in portable devices where continuous improvements are needed to reduce power consumption without compromising user experience.
Innovation Solution
Implementing a method that detects inactivity in OLED displays and reduces screen size, thereby disabling unnecessary OLEDs to conserve power, and periodically moving the screen to prevent burn-in, while allowing restoration to full size upon user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the OLED display maintains full screen size continuously, then the display area and user experience are preserved, but power consumption increases
Solution Approach 1:
The patent implements dynamic screen size adjustment by detecting user inactivity and automatically reducing the display area. The screen transitions between full size and reduced size based on usage patterns, making the display area variable rather than fixed. This resolves the contradiction by allowing the screen to be small when not in use (saving power) and large when needed (maintaining user experience).
Solution Approach 2:
The patent changes the physical parameter of display area based on operational conditions. By monitoring user interaction and adjusting the active screen area parameter dynamically, the system optimizes power consumption while maintaining adequate display real estate during active use. This directly addresses the trade-off between screen size and power consumption.
2Use of energy by moving object
If the screen size is reduced to save power, then power consumption decreases, but the display area available for content is reduced
Solution Approach 1:
The patent implements periodic monitoring of user interaction with the display. By detecting inactivity over a specified time period and periodically adjusting screen size accordingly, the system ensures power savings during idle periods while automatically restoring full functionality when user interaction resumes. This periodic action resolves the contradiction by timing the size reduction to occur only when it doesn't impact user experience.
Solution Approach 2:
The display area dynamically adapts to user needs by expanding when interaction is detected and contracting during inactivity. This dynamic behavior ensures that the reduced screen size doesn't permanently degrade user experience, as the full display area is readily available when needed.
3Duration of action of stationary object
If OLEDs are continuously active to maintain display readiness, then user experience and responsiveness are improved, but power consumption and OLED lifespan are reduced
Solution Approach 1:
The patent reduces the active OLED area in advance during periods of detected inactivity, before power consumption and degradation become significant issues. By proactively minimizing the active display area when not in use, the system extends OLED lifespan without compromising readiness, as the full display area is restored immediately upon user interaction.
Solution Approach 2:
The patent creates a dynamic balance between OLED activity and display readiness by adjusting the active area based on usage patterns. The system maintains full readiness during active use while transitioning to a low-power state during inactivity, optimizing both lifespan and responsiveness through adaptive behavior.
Data Source
AI summary
A method enables power savings in an OLED display by reducing the size of the screen in an OLED display when the screen is not in use. For example, if the OLED display receives no input from the user for a predefined time period, the size of the screen is reduced in order to decrease the power consumption of the OLED display.