Touch Electrode Sensor Area Deviation Minimization
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Solution Overview
Problem
The sensitivity and accuracy of touch recognition in touch integrated display panels are compromised due to non-uniform sizes of touch unit sensors, which affect the resolution and arrangement of pixels, leading to decreased touch performance.
Innovation Solution
The touch electrode is designed with a combination of basic and variable touch unit sensors, where the basic sensors are placed in a central area and variable sensors are positioned around them, with size differences minimized by varying the horizontal and vertical pixel numbers, ensuring uniform touch performance across the panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If touch unit sensors are divided uniformly across the display panel, then manufacturing simplicity is improved, but touch recognition accuracy deteriorates due to non-uniform pixel arrangements at edges and corners
Solution Approach 1:
The patent applies local quality by differentiating touch unit sensor configurations based on their positions. Central touch unit sensors use a first pixel number arrangement, while edge and corner touch unit sensors use second pixel number arrangements. This allows each region to be optimized for its specific geometric characteristics, maintaining touch recognition accuracy while simplifying manufacturing through standardized patterns within each zone.
2Measurement precision
If touch unit sensors are designed with different pixel numbers to accommodate edge and corner positions, then touch recognition accuracy is improved, but device complexity increases due to multiple sensor configurations
Solution Approach 1:
The patent segments the display panel into distinct regions: a central region with first touch unit sensors and edge/corner regions with second touch unit sensors. This segmentation allows each region to use optimized pixel arrangements for its specific geometry, improving touch recognition accuracy while maintaining manageable complexity through clear regional differentiation.
3Adaptability or versatility
If the common electrode is divided into multiple touch unit sensors with varying sizes, then adaptability to different display resolutions is improved, but manufacturing precision requirements increase due to size variations
Solution Approach 1:
The patent changes the pixel number parameters of touch unit sensors based on their positional requirements. First touch unit sensors in the central region use one pixel number configuration, while second touch unit sensors at edges and corners use different pixel number configurations. This parameter adaptation enables the touch electrode to accommodate various display resolutions while managing manufacturing precision through systematic variations.
Data Source
AI summary
The present disclosure provides a display panel for a display device including a touch electrode divided into first touch unit sensors having a first size and second touch unit sensors having a second size different from the first size. When a horizontal or vertical size of a second touch unit sensor is compared with a first touch unit sensor, the vertical size of the second touch unit sensor is smaller than that of the first touch unit sensor when the horizontal size of the second touch unit sensor is larger than that of the first touch unit sensor and the horizontal size of the second touch unit sensor is smaller than that of the first touch unit sensor when the vertical size of the second touch unit sensor is larger than that of the first touch unit sensor. Therefore, an area deviation of touch unit sensors forming a touch electrode is minimized and thus uniform and superior touch performance may be provided.