Touch Control Screen Auxiliary Area Power Reduction
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Solution Overview
Problem
Touch-control screens face challenges in reducing power consumption while maintaining accuracy, as decreasing the area occupied by touch-control electrodes increases the number of electrodes, leading to higher power consumption.
Innovation Solution
The implementation of a touch-control screen with a main and auxiliary touch-control area, where the auxiliary area has smaller electrodes with lower power consumption, and a driving unit that transmits signals to both areas, optimizing power usage by reducing scanning frequency and voltage in the auxiliary area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the area occupied by touch-control electrodes is reduced to improve touch-control accuracy, then the number of touch-control electrodes increases, but the power consumption of the touch-control screen increases
Solution Approach 1:
The patent applies local quality by differentiating the touch-control electrode configuration between the main touch-control area and the auxiliary touch-control area. The auxiliary area uses touch-control electrodes with smaller areas and lower unit power consumption compared to the main area, optimizing power usage based on the actual touch control needs of different regions.
Solution Approach 2:
The patent segments the touch-control screen into two distinct areas: the main touch-control area and the auxiliary touch-control area. This segmentation allows independent optimization of electrode characteristics in each area, enabling the auxiliary area to use fewer, smaller electrodes with lower power consumption while the main area maintains higher accuracy with more electrodes.
2Measurement precision
If the number of touch-control electrodes is increased to improve touch-control accuracy, then the coverage area is improved, but the power consumption increases
Solution Approach 1:
The patent implements local quality by assigning different electrode densities to different areas. The main touch-control area has a higher density of touch-control electrodes for accurate touch detection, while the auxiliary touch-control area has a lower density with fewer electrodes, reducing the total quantity while maintaining necessary functionality.
Solution Approach 2:
The patent segments the electrode distribution into two zones: the main area with numerous electrodes for high-precision touch control, and the auxiliary area with fewer electrodes for basic functionality. This segmentation reduces the overall number of electrodes required while preserving touch-control accuracy where needed.
Data Source
AI summary
Touch-control screen, driving method thereof, and touch-control apparatus are provided. The touch-control screen includes a touch-control area and a driving unit. The touch-control area includes a main touch-control area and an auxiliary touch-control area smaller than the main touch-control area. The touch-control area further includes a plurality of touch-control electrodes, having a plurality of first touch-control electrodes in the main touch-control area and a plurality of second touch-control electrodes in the auxiliary touch-control area. In a touch-control stage, the driving unit is configured to transmit electrical signals respectively to the plurality of first touch-control electrodes in the main touch-control area and to the plurality of second touch-control electrodes in the auxiliary touch-control area. A unit power consumption of the plurality of second touch-control electrodes in the auxiliary touch-control area is smaller than a unit power consumption of the plurality of first touch-control electrodes in the main touch-control area.