Display Driver Circuit Power Control for Low Energy Consumption
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Solution Overview
Problem
Existing display systems face challenges in achieving low power consumption and fine-grained control over the operation state of driver circuits for multiple pixel groups, particularly in efficiently managing video signals and power supply to each group.
Innovation Solution
A circuit and display system design that includes multiple circuits for signal processing and power control, allowing for the generation and distribution of different video signals to distinct pixel groups, with power supply management based on signal comparison to optimize power usage and reduce unnecessary operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If driver circuits are continuously powered to ensure video signal supply to pixel groups, then video display reliability is improved, but power consumption increases
Solution Approach 1:
The driver circuits are powered periodically rather than continuously. The power supply is controlled to be activated only when video signal updating is required and deactivated when the displayed video remains unchanged,实现间歇性工作模式以降低功耗
Solution Approach 2:
A feedback mechanism compares the current video signal with the previously displayed video signal to determine whether updating is necessary. Based on this comparison result, the power supply control circuit dynamically adjusts the power state of driver circuits,实现基于状态反馈的功耗优化
2Reliability
If driver circuits are powered for all pixel groups to ensure complete video coverage, then display completeness is improved, but power consumption increases
Solution Approach 1:
The display system divides pixel groups into multiple segments, each with its own driver circuit and power control. This allows independent power management for each segment, enabling only the necessary segments to be powered at any given time
Solution Approach 2:
Different power control strategies are applied to different pixel group segments based on their specific display requirements. Each segment receives power only when its corresponding video signal needs updating,实现局部化的功耗优化
3Reliability
If video signals are continuously updated to all pixel groups, then display freshness is improved, but energy waste increases
Solution Approach 1:
Instead of continuously updating all pixel groups with video signals, the system performs partial updates only for those pixel groups whose displayed content has changed. This avoids excessive action of unnecessary signal transmission and processing
Solution Approach 2:
Video signal updates are performed periodically based on change detection rather than continuously. The update frequency is dynamically adjusted according to whether content changes occur, reducing energy waste from redundant updates
Data Source
AI summary
A novel circuit, a novel display portion, a novel display system, or the like is provided. A circuit, a display portion, a display system, or the like which has low power consumption is provided. A plurality kinds of video signals are generated by division of input data and supplied to different pixel groups. Thus, for example, the plurality of video signals can be supplied individually, and the operation states of a plurality of driver circuits can be controlled individually, leading to fine-grained operation with low power consumption. Accordingly, a decoder, a display portion, or a display system having low power consumption can be provided.