Array Substrate Scanning Signal Lines Power Saving
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Solution Overview
Problem
The increasing resolution of display panels leads to higher power consumption, particularly in mobile devices, where existing methods to reduce power consumption through partial display are inconvenient and negatively impact user experience.
Innovation Solution
The array substrate design incorporates a configuration of intersecting data and scanning signal lines, with second scanning signal lines controlling sub-pixel groups, allowing for a power-saving mode that reduces the number of scanning and data signal lines applied with signals, thereby reducing power consumption without compromising display brightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution of display panels is increased, then the display quality is improved, but the power consumption increases
Solution Approach 1:
The display panel is divided into multiple virtual display areas that can be independently controlled. By segmenting the display into different regions (first virtual display area and second virtual display area), the system can selectively activate only the necessary scanning signal lines and data signal lines for each virtual area, thereby reducing the overall power consumption while maintaining high resolution display quality in the active regions.
2Use of energy by moving object
If partial display methods are used to reduce power consumption, then the power usage decreases, but the user experience deteriorates
Solution Approach 1:
The system dynamically adjusts the number and arrangement of virtual display areas based on real-time display content requirements. The controller can flexibly configure which scanning signal lines and data signal lines are activated, allowing the display to adapt between full-power high-resolution mode and power-saving mode seamlessly, thereby maintaining user experience while reducing power consumption when full display is not needed.
3Area of stationary object
If all scanning signal lines and data signal lines are applied with signals for full-screen display, then the display coverage is maximized, but the power consumption increases
Solution Approach 1:
Instead of applying signals to all scanning signal lines and data signal lines simultaneously, the system applies signals only to the subset of lines required for the current virtual display area configuration. By using partial action (activating only necessary signal lines) rather than excessive action (activating all signal lines), the system achieves adequate display coverage for the intended content while significantly reducing power consumption.
Data Source
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AI summary
An array substrate, a driving method thereof and a display device are disclosed. In the array substrate, one second scanning signal line (104) is disposed at a position corresponding to the (2N+1)th row of sub-pixels or the (2N+2)th row of sub-pixels, or one second scanning signal line (104) is disposed at a position corresponding to the (N+1)th row of sub-pixels; each first switching element (107) is disposed in a corresponding sub-pixel; each second switching element (108) is disposed in a corresponding sub-pixel group; each first scanning signal line (103) is configured to control a plurality of first switching elements (107) in one row of sub-pixels (105); and each second scanning signal line (104) is configured to control a plurality of second switching elements (108) in one row of sub-pixel groups (109). The display device can have resolution reduced by half or three fourth in the case of full screen display, and lowers drive power consumption of the display panel without affecting display brightness.