Variable Refresh Rate Display Eco-State Detection Circuit
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Solution Overview
Problem
Conventional liquid crystal display devices struggle to maintain display quality at low refresh rates, leading to potential power consumption issues, as users cannot visually distinguish between high and low refresh rate states, hindering awareness of reduced power usage.
Innovation Solution
A display device with a variable refresh rate detection system that includes a rate detecting section to specify the refresh rate and a state presenting section to inform users of the refresh rate, allowing for automatic power savings and user awareness through eco-state marking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the refresh rate is reduced to lower electric power consumption, then power consumption is reduced, but the user cannot realize or recognize that the display device is in a low power consumption state
Solution Approach 1:
The patent applies visual indication methods (such as displaying icons, changing colors, or showing indicators) to communicate the refresh rate state and power consumption level to the user. This allows the user to recognize when the device is operating in a low power consumption mode without requiring additional hardware or complex interfaces.
2Use of energy by moving object
If the refresh rate is reduced to pause screen refresh in periods when no image is updated, then electric power consumption is reduced, but display quality may deteriorate due to ambient environment factors
Solution Approach 1:
The patent implements dynamic refresh rate adjustment based on content type and environmental conditions. The system automatically switches between low refresh rate (for static images) and high refresh rate (for moving images or when environmental factors affect display quality), optimizing both power consumption and display reliability adaptively.
Solution Approach 2:
The patent changes the refresh rate parameter dynamically based on detected conditions such as image content, ambient temperature, and display quality requirements. This allows the system to maintain optimal display quality while minimizing power consumption by adjusting the refresh rate parameter in response to changing conditions.
3Use of energy by moving object
If the refresh rate is automatically changed without user notification, then power consumption is optimized, but the user cannot realize the benefit of reduced power consumption
Solution Approach 1:
The patent implements feedback mechanisms that provide real-time information to the user about the current refresh rate and power consumption state. This allows users to understand the benefits of automatic refresh rate adjustment and potentially manually control the setting if desired, maintaining both optimization and user engagement.
Data Source
AI summary
The present invention allows a user to realize that a display device is in a state of low electric power consumption. A display device (1) is a display device for refreshing a display screen at a refresh rate which is variable, the display device including: an eco-state sensing circuit (8) for specifying the refresh rate which is variable; and a state display control circuit (9) for presenting a state of the specified refresh rate to a user.