OLED Display Power Control via Image Data Inversion
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Solution Overview
Problem
Battery-powered OLED displays face high power consumption due to predominantly white backgrounds in software applications, which negates their power advantages over LCD displays, leading to reduced battery life.
Innovation Solution
An image data control system that analyzes display data to identify power-intensive images and converts them into alternative, power-friendly images by inverting, reducing brightness, or increasing contrast, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If white backgrounds are used in software applications on OLED displays, then the display can show bright and clear content, but power consumption increases significantly
Solution Approach 1:
The patent inverts the traditional display approach by detecting white backgrounds and converting them to dark backgrounds with inverted text colors. This inversion principle directly addresses the power consumption issue by making the display background dark (which OLEDs handle efficiently) while maintaining content readability through color inversion of text and graphical elements.
Solution Approach 2:
The patent changes the display parameters dynamically by detecting the background color composition and adjusting the image data accordingly. When white pixels exceed a threshold, the system transforms the image data to use dark backgrounds with light text, effectively changing the brightness and color parameters to reduce power consumption while maintaining visual clarity.
2Illumination intensity
If OLED displays are used to show predominantly white backgrounds, then clear and bright content is achieved, but battery life is reduced
Solution Approach 1:
By inverting the display scheme from light-background to dark-background mode when white content is detected, the patent enables OLED displays to operate in their power-efficient regime while maintaining content clarity through inverted color schemes, thus extending battery life without sacrificing display quality.
Solution Approach 2:
The patent converts the harmful effect of white backgrounds (high power consumption) into a benefit by detecting when white content is displayed and automatically transforming it to dark mode. This transforms the power-draining situation into a power-saving opportunity, extending battery life while maintaining readability.
3Duration of action of moving object
If image data is transformed to reduce power consumption, then battery life is extended, but display complexity increases
Solution Approach 1:
The patent performs preliminary detection of background color composition before displaying content. By analyzing the image data in advance to determine if white pixels exceed a threshold, the system can proactively transform the display mode before rendering, simplifying the overall process by avoiding complex real-time adjustments during display operation.
Solution Approach 2:
The display system performs self-service by automatically detecting when power-intensive white backgrounds are being displayed and autonomously transforming the image data to dark mode. This self-adjusting mechanism eliminates the need for manual user intervention or complex external control systems, reducing overall system complexity while achieving power savings.
Data Source
AI summary
For power-advantaged image data control, a method, system, and apparatus are disclosed. The method includes identifying, by use of a processor, a power source state, determining whether display data includes a power-adverse image based, at least in part, on the power source state, and replacing the power-adverse image with a power-advantaged image in response to the display data including the power-adverse image. In some embodiments, the method includes converting the power-adverse image into the power-advantaged image. In some embodiments, the method includes notifying a user, in response to displaying the power-advantaged image, that the power-advantaged image is displayed in place of the power-adverse image, and providing the user a control to display the power-adverse image in place of the power-advantaged image.