Touch-Display Electrode Scanning Parallelism
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Solution Overview
Problem
Existing capacitive touch-control display panels face long scanning times during touch-control sensing periods due to sequential scanning of touch-control driving electrodes, which can lead to mutual interference and abnormal signal occurrences.
Innovation Solution
The implementation of a touch-control display panel with first and second touch-control display regions on a substrate, where touch-control driving electrodes extend in opposite directions, allowing simultaneous scanning of electrodes in each region, thereby reducing scanning time and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If touch-control driving electrodes are sequentially scanned along a scanning direction, then mutual interference between detecting electrodes is avoided, but scanning time becomes relatively long
Solution Approach 1:
The display panel is divided into multiple scan regions, with each region containing a subset of driving electrodes that can be scanned simultaneously. This segmentation allows parallel processing of electrode scanning across different regions, reducing overall scanning time while maintaining interference avoidance through regional isolation.
Solution Approach 2:
The patent introduces a regional dimension to the scanning process, organizing electrodes not just in a single linear scanning sequence but across multiple spatial regions that can be processed in parallel. This dimensional approach transforms sequential scanning into a multi-dimensional concurrent scanning system.
2Reliability
If touch-control driving electrodes are sequentially scanned, then electrode interference is minimized, but scanning rate is reduced
Solution Approach 1:
By segmenting the electrode array into multiple regions with independent scanning capabilities, the system can process multiple regions simultaneously, thereby increasing the scanning rate without causing interference between detecting electrodes in different regions.
Solution Approach 2:
Multiple scanning operations that were previously performed sequentially are merged into concurrent operations across different regions. The scanning system combines multiple scanning tasks into a single parallel execution, effectively increasing productivity while maintaining reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the scanning rate and reduces mutual interference between detecting electrodes, ensuring normal touch-control detection by maintaining consistent voltage fluctuation tendencies across regions.
Implementation Method 1
When the touch-control display panel is touched, a capacitance between the touch-control driving electrodes 2′ and the touch-control detecting electrodes 5′ varies due to the occurrence of touch control
Data Source
AI summary
A touch-control display panel, a driving method thereof, and a touch-control display device are provided. The display panel includes a first substrate and a plurality of touch-control driving electrodes extending along a second direction. The first substrate includes a first touch-control display region and a second touch-control display region arranged along a first direction. The plurality of touch-control driving electrodes include first touch-control driving electrodes distributed in the first touch-control display region and second touch-control driving electrodes distributed in the second touch-control display region. The number of the first touch-control driving electrodes is equal to the number of the second touch-control driving electrodes. One first touch-control driving electrode and one second touch-control driving electrode are scanned simultaneously, a distance from the one first touch-control driving electrode to the second touch-control display region is equal to a distance from the one second touch-control driving electrode to the first touch-control display region.