Display Substrate Refresh Zoning for Lower Power Consumption
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Solution Overview
Problem
Existing display screens face high power consumption due to uniform refresh rates across different screen portions, which is inefficient and reduces standby time, especially in scenarios requiring varying refresh rates like high frame rate games and live webcasts.
Innovation Solution
A display substrate with separate pixel rows and drive lines for different refresh frequencies, allowing independent control of refresh rates in distinct display regions, reducing power consumption by optimizing refresh frequencies based on specific requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If uniform refresh rate is applied to entire display screen, then image quality is maintained, but power consumption increases
Solution Approach 1:
The display screen is divided into multiple display regions with different refresh rates. The refresh rate control unit separately controls each region's refresh rate according to its specific requirements, allowing high refresh rates in game regions and low refresh rates in other regions, thereby reducing overall power consumption while maintaining image quality where needed
Solution Approach 2:
The refresh rate of each display region is dynamically adjusted based on real-time detection of display content. The refresh rate control unit changes refresh rates according to the type of content being displayed in each region, enabling adaptive power management without compromising image quality in regions requiring high refresh rates
2Use of energy by moving object
If high refresh rate is applied to entire display screen, then image quality for high frame rate games is improved, but power consumption increases and standby time decreases
Solution Approach 1:
Different display regions are assigned different refresh rates according to their specific requirements. Game display regions require high refresh rates for smooth motion, while other regions can use lower refresh rates, creating local quality differences that optimize both image quality and power consumption
Solution Approach 2:
The display screen is segmented into multiple independent display regions, each with its own refresh rate control. This allows the system to apply high refresh rates only where necessary (game regions) while using lower refresh rates in other regions, reducing overall power consumption while maintaining high image quality in critical areas
3Measurement precision
If separate data signal sources are used for each display region, then refresh rate control precision is improved, but device complexity increases
Solution Approach 1:
A single data signal source provides data signals to multiple display regions through a switching mechanism. The refresh rate control unit controls the switching to route data signals to different regions at different times, allowing one data signal source to serve multiple functions and reducing overall system complexity while maintaining precise refresh rate control
Solution Approach 2:
The data signal source continuously provides data signals that are switched between different display regions. This continuous signal flow with temporal switching allows precise control of refresh rates for each region without requiring separate continuous signal sources, reducing complexity while maintaining control precision
Data Source
AI summary
This disclosure provides a display substrate, a display, and a display substrate driving method. The display substrate includes a first-category pixel row, a second-category pixel row, a first drive line, a second drive line and at least one category of data signal source; a first gate on array (GOA) circuit is used for providing a starting signal of a first frequency to the first-category pixel row; a second GOA circuit is used for providing a starting signal of a second frequency to the second-category pixel row; the at least one category of data signal source is used for supplying a data signal to data signal lines of the first-category pixel row and the second-category pixel row.