Display Driving System Independent EM Signal Control
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Solution Overview
Problem
The increasing complexity and size of display screens in electronic devices, particularly those with multiple display regions, lead to higher power consumption, necessitating a solution to reduce energy usage while maintaining user experience and design flexibility.
Innovation Solution
A display driving system that employs independent EM signal management for each display region, allowing for control of emitting and non-emitting states, and provides independent supply voltage and brightness calibration, enabling the system to turn off video source signals during non-image display periods and adjust brightness differently for each region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a display screen is divided into multiple display regions to improve user experience and design flexibility, then the adaptability and functionality are enhanced, but the power consumption increases due to the need to continuously drive all regions
Solution Approach 1:
The display screen is divided into multiple independent display regions (first display region and second display region), each with its own EM signal control. This segmentation allows independent control of each region's emitting state, enabling the system to turn off EM signals for regions that do not need to display images, thereby reducing overall power consumption while maintaining the flexibility to configure different display regions as needed
Solution Approach 2:
The system dynamically adjusts the EM signal output based on the actual display needs of different regions. The display driving system can switch between different operating modes: both regions displaying, only one region displaying, or neither region displaying. This dynamic control allows the system to adapt to varying user requirements while minimizing power consumption by activating EM signals only when and where needed
2Use of energy by moving object
If independent EM signal control is implemented for each display region to reduce power consumption, then energy efficiency is improved, but the device complexity increases due to multiple EM signal output ends
Solution Approach 1:
The display driving system is segmented into multiple independent EM signal output ends (first EM signal output end and second EM signal output end), each responsible for controlling a specific display region. This segmentation enables independent power management for each region, allowing the system to reduce power consumption by selectively activating only the EM signal output ends needed for current display requirements, while the modular structure keeps the increased complexity manageable
3Reliability
If video source signals are continuously output to maintain display readiness, then the reliability of image display is ensured, but power consumption increases unnecessarily during non-image display periods
Solution Approach 1:
The system implements periodic control of video source signals based on actual display needs. Video source signals are output only during periods when display is required, and turned off during non-image display periods. This periodic action maintains display reliability when needed while eliminating unnecessary power consumption during periods when no image needs to be displayed, achieving both reliability and energy efficiency
Data Source
AI summary
An electronic device includes a display screen, where the display screen includes a first display region and a second display region, and a display driving system including a first emission (EM) signal output end configured to send a first EM signal to the display screen, where the display driving system further includes a second EM signal output end configured to send a second EM signal to the display screen, where the first EM signal controls the first display region to display an image in a first time period, and the second EM signal controls the second display region not to display an image in the first time period.