Stripe-Shaped Common Electrodes for Touch Display Signal Uniformity
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Solution Overview
Problem
Current touch control display panels face issues with signal distortions and increased power consumption due to noise detection processing, which affects the accuracy and speed of touch control signal processing.
Innovation Solution
The integration of stripe-shaped common electrodes with equal on-state resistance and parasitic capacitance in the touch control display panel, ensuring uniform signal transmission and phase shift, thereby reducing noise detection processing and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If control circuits process touch control driving signals through functional modules (signal amplifiers, ADC, DAC), then touch control function is achieved, but signal distortions occur and detection precision decreases
Solution Approach 1:
The patent changes the electrical parameters of the common electrode by configuring it with specific stripe shape, width, and spacing to achieve equal on-state resistance and equal aggregated parasitic capacitance. This parameter optimization reduces signal distortion during touch control operations, allowing accurate touch detection without requiring additional noise processing circuits.
2Measurement precision
If additional noise detection processing is added to control circuits to precisely extract touch control position, then measurement precision improves, but power consumption increases and processing speed decreases
Solution Approach 1:
The patent performs preliminary action by pre-optimizing the common electrode structure to have equal on-state resistance and equal aggregated parasitic capacitance across all stripes. This preliminary structural configuration prevents signal distortion before it occurs, eliminating the need for subsequent noise detection processing and reducing power consumption while maintaining high precision touch control.
3Volume of moving object
If touch control structure is integrated into display panel to reduce thickness, then device compactness improves, but signal distortion and power consumption issues arise
Solution Approach 1:
The patent optimizes the common electrode parameters (stripe width, spacing, and shape) to achieve equal on-state resistance and equal aggregated parasitic capacitance. This parameter optimization reduces signal distortion in the integrated structure, eliminating the need for additional noise processing circuits and reducing overall power consumption while maintaining the thin-profile design.
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 configuration enhances the precision and speed of touch control signal processing, reducing signal distortion and power consumption, resulting in a more stable and efficient touch control experience.
Implementation Method 1
At least two stripe-shaped common electrodes have an equal on-state resistance in the second direction and an equal aggregated parasitic capacitance during a touch control phase
Implementation Method 2
At least two stripe-shaped common electrodes have an equal on-state resistance in the second direction and an equal aggregated parasitic capacitance during a touch control phase
Data Source
AI summary
The present disclosure provides an integrated touch control display panel. The integrated touch control display panel includes a plurality of stripe-shaped common electrodes sequentially arranged in a first direction and extending in a second direction intersecting with the first direction. The stripe-shaped common electrodes operate as touch control driving electrodes during a touch control phase. At least two stripe-shaped common electrodes have an equal on-state resistance in the second direction and an equal aggregated parasitic capacitance during a touch control phase.