Display Bandwidth Adjustment for Power Reduction
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Solution Overview
Problem
High power consumption due to high transmission bandwidth in display technologies, which affects product lifespan and fails to meet industry energy efficiency standards.
Innovation Solution
A video transmission method and display that dynamically adjust transmission bandwidth by detecting the current bandwidth of the video stream and changing the bandwidth used by the transmission interface accordingly, reducing power consumption and meeting specified energy efficiency standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high transmission bandwidth is used to achieve high resolution and high update rate, then display performance is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic bandwidth adjustment by detecting the actual bandwidth requirement of the video stream and switching between different bandwidth modes (first bandwidth for high performance, second bandwidth for power saving) based on real-time needs. This dynamic adaptation allows the display system to optimize the trade-off between display performance and power consumption rather than operating at a fixed high bandwidth state.
Solution Approach 2:
The patent changes the transmission bandwidth parameter from a fixed high value to a variable value that adapts to the actual video stream requirements. By detecting the video stream's bandwidth characteristics and adjusting the transmission interface bandwidth accordingly, the system can operate at lower bandwidth (and thus lower power) when high resolution and high update rate are not needed, while still maintaining the capability to switch to high bandwidth when performance is required.
2Productivity
If high transmission bandwidth is used to achieve high resolution and high update rate, then display performance is improved, but energy efficiency standards are not met
Solution Approach 1:
The system dynamically adjusts transmission bandwidth based on actual video stream requirements, switching between high bandwidth mode (when performance is needed) and low bandwidth mode (when power saving is prioritized). This dynamic behavior enables the display to meet energy efficiency standards by operating at lower bandwidth for extended periods while maintaining the capability to deliver high performance when required.
Solution Approach 2:
The transmission bandwidth parameter is changed from a static high value to a dynamic value that responds to video stream characteristics. By detecting whether the video stream requires high bandwidth and adjusting the transmission interface accordingly, the system reduces energy loss during operations where full bandwidth is not necessary, thereby improving overall energy efficiency and compliance with industry standards.
3Reliability
If high transmission bandwidth is used, then video quality is maintained, but product lifespan is reduced
Solution Approach 1:
The patent implements dynamic bandwidth adjustment that detects video stream requirements and switches between high bandwidth mode (preserving video quality) and low bandwidth mode (extending product lifespan by reducing power consumption and thermal stress). This dynamic adaptation allows the system to preserve video quality when needed while reducing operational stress on components during normal operation, thereby extending overall product lifespan.
Solution Approach 2:
The transmission bandwidth parameter is dynamically changed based on actual video stream characteristics rather than maintaining a constantly high bandwidth state. By adjusting the bandwidth parameter to match actual requirements, the system maintains video quality when high bandwidth is necessary while reducing power consumption and thermal load during operations where lower bandwidth suffices, thus extending the operational life of the display components.
Data Source
AI summary
A video transmission method and a display are provided. In the method, a first bandwidth of a video stream inputted into a display is detected. The display includes a scaling controller and a timing controller. The first bandwidth is compared with a second bandwidth used by the scaling controller and the timing controller to obtain a comparison result between the first bandwidth and the second bandwidth. The second bandwidth is changed to a third bandwidth according to the comparison result. The third bandwidth is used for a transmission of the video stream. Accordingly, bandwidth waste and power consumption may be reduced.