Display Panel Segmentation for Power Reduction
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Solution Overview
Problem
Current display devices for high-definition video, such as 8K broadcasts, face challenges in power consumption and efficiency due to the need for continuous image rewriting across multiple display panels, which increases energy usage and heat generation.
Innovation Solution
A television system comprising a decoder, driver circuit, and display portion, where the decoder determines the necessity of image rewriting for each display panel based on motion vectors and prediction errors, and only outputs signals to panels requiring updates, while stopping signal output to panels with no changes, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If continuous image rewriting is performed across all display panels to support high-definition video display, then display quality is improved, but power consumption increases
Solution Approach 1:
The display portion is divided into multiple independent display panels, each controlled by separate driver circuits. The system segments the image rewriting operation by panel, allowing independent control of rewriting operations for each panel based on its specific content requirements, thereby avoiding unnecessary power consumption in panels that do not require updates.
Solution Approach 2:
Instead of performing complete image rewriting across all display panels, the system applies partial action by selectively rewriting only those panels where content changes are detected. The driver circuits receive control signals to determine whether to perform rewriting operations, thus avoiding excessive power consumption while maintaining display quality where needed.
2Area of stationary object
If multiple display panels are used to display high-definition video, then display area is improved, but heat generation increases
Solution Approach 1:
The display system is segmented into multiple independent panels with separate driver circuits, allowing selective operation. When content does not change across panels, the driver circuits can be deactivated, reducing heat generation while maintaining the large display area capability when needed.
Solution Approach 2:
The system implements periodic detection of content changes across display panels. Driver circuits are activated only during periods when content changes are detected in specific panels, and deactivated during periods of no change, thereby reducing continuous heat generation while maintaining display area readiness.
3Reliability
If image rewriting is performed for all display panels, then image update completeness is improved, but operational efficiency decreases
Solution Approach 1:
The image update process is segmented by display panel, with each panel independently evaluated for content changes. The decoder and driver circuits work together to determine which specific panels require rewriting, ensuring complete updates only where necessary while improving operational efficiency through selective processing.
Solution Approach 2:
The system implements self-service through automatic detection of content changes by the decoder and generation of selective control signals to driver circuits. This automated process ensures that image rewriting is performed completely and reliably only for panels that require updates, without manual intervention, thereby improving operational efficiency while maintaining update completeness.
Data Source
AI summary
To provide a novel device, a device with low power consumption, or a versatile device, the device includes a decoder, a driver circuit, and a display portion. The driver circuit includes a plurality of circuits. The display portion includes a plurality of display panels. The decoder has a function of generating a signal corresponding to an image displayed on the display portion. The decoder has a function of determining the necessity of rewriting an image of each of the display panels by detecting a change in the image of each of the display panels. The circuit has a function of outputting a signal to a display panel for which that image rewriting is determined to be necessary. The circuit has a function of stopping output of a signal to a display panel for which image rewriting is determined to be unnecessary.