Bendable Mesh Touch Control Structure for Accurate On-Cell Sensing
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Solution Overview
Problem
Existing touch panels, particularly on-cell touch panels, face challenges in achieving high touch control accuracy and flexibility while maintaining effective blanking effects.
Innovation Solution
A touch control structure with a plurality of first and second mesh electrodes arranged in rows and columns, featuring bendable mesh blocks separated by gaps that allow for flexibility and insulation, and independent touch signal lines for enhanced touch sensing and scanning capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If on-cell touch panels are used to achieve high touch control accuracy, then touch control precision is improved, but flexibility and blanking effects deteriorate
Solution Approach 1:
The touch panel is divided into multiple independent mesh blocks separated by gaps. Each mesh block can be independently controlled and bent, allowing the panel to maintain touch accuracy in active regions while providing flexibility and blanking capability in gap regions. The segmentation enables different functional zones within the same panel structure.
Solution Approach 2:
Different regions of the touch panel have different properties: mesh blocks provide high touch control accuracy for active touch areas, while gaps provide flexibility and blanking effects. This local differentiation allows each region to optimize its function without compromising the other, resolving the contradiction between precision and adaptability.
2Adaptability or versatility
If mesh electrodes are made bendable to achieve flexibility, then adaptability is improved, but touch control accuracy deteriorates
Solution Approach 1:
The continuous mesh electrode is segmented into discrete mesh blocks separated by gaps. This segmentation allows the mesh blocks to be flexible and bendable while maintaining their structural integrity and electrical properties. The gaps act as hinge regions that enable bending without compromising the touch sensing capability of the mesh blocks.
Solution Approach 2:
The mesh blocks are designed to be dynamically bendable through the gap structures, allowing the panel to transition between flat and bent states. The mesh electrode material and structure are optimized to maintain electrical conductivity and touch sensing accuracy during dynamic bending operations, resolving the contradiction between flexibility and precision.
3Adaptability or versatility
If gaps are introduced to enable bending, then flexibility is improved, but structural integrity deteriorates
Solution Approach 1:
The introduction of gaps segments the continuous mesh electrode into discrete blocks. While this enables flexibility and bending capability, the mesh blocks are designed with sufficient structural strength and appropriate spacing to maintain overall panel integrity. The gaps are positioned and sized to allow bending while preventing excessive deformation that would compromise structural strength.
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
The solution provides a flexible touch control structure with improved touch accuracy and blanking effects, enabling multiple point touch control and maintaining performance during bending.
Implementation Method 1
the first half mesh block and a respective second half mesh block insulated from each other by the respective gap
Data Source
AI summary
A touch control structure is provided. The touch control structure includes a plurality of first mesh electrodes arranged in a plurality of rows and a plurality of second mesh electrodes arranged in a plurality of columns. The touch control structure includes a plurality of bendable mesh blocks along a column direction, and a plurality of gaps respectively in the plurality of bendable mesh blocks. In a respective bendable mesh block of the plurality of bendable mesh blocks, a respective gap of the plurality of gaps includes a plurality of line opens respectively breaking open multiple mesh lines of the respective bendable mesh block. The respective gap spaces apart the respective bendable mesh block into a respective first half mesh block and a respective second half mesh block directly adjacent to each other, which are insulated from each other by the respective gap.