3D Touch Panel with Irregular Electrode Blocks for Vertex Detection
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Solution Overview
Problem
Touch control on multi-facet display apparatuses with non-flat surfaces, such as those with vertices and curved edges, presents a difficult issue due to the complexity of achieving accurate and stable touch detection across varied surface geometries.
Innovation Solution
A touch control panel with a three-dimensional body featuring vertices and curved edges, incorporating a touch electrode layer with irregularly shaped electrode blocks that are electrically connected, allowing for true touch detection and control on these complex surfaces, and a method of fabricating this panel by forming a mother panel on a flat substrate, cutting corners to create folding allowances, and molding into a three-dimensional shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a touch electrode layer is extended into vertices portions of a three-dimensional body, then touch detection capability on non-flat surfaces is improved, but electrode block arrangement complexity increases
Solution Approach 1:
The patent applies local quality by using irregularly shaped electrode blocks specifically in the vertex portions where regular blocks cannot fit, while maintaining regular blocks in flat areas. This localized adaptation allows the touch electrode layer to conform to the three-dimensional surface geometry, enabling touch detection at vertices without requiring all blocks to be irregular, thus balancing adaptability with manufacturability
Solution Approach 2:
The touch electrode layer is segmented into different types of electrode blocks: regular blocks for flat portions and irregular blocks for vertex portions. This segmentation allows each type of block to be optimized for its specific location, with irregular blocks having shapes tailored to fit the angular geometry of vertices while regular blocks maintain simple geometric forms for easier manufacturing
2Measurement precision
If irregularly shaped electrode blocks are used in vertices portions, then touch control accuracy on non-flat surfaces is improved, but manufacturing difficulty increases
Solution Approach 1:
The patent implements local quality by restricting irregular block usage only to vertex portions where they are geometrically necessary, while the majority of the touch electrode layer uses regular blocks. This approach ensures high touch control accuracy at the critical vertex areas without requiring the entire manufacturing process to accommodate complex irregular shapes, thus reducing overall manufacturing difficulty
Solution Approach 2:
The patent applies preliminary action by pre-defining the shapes and positions of irregular electrode blocks during the design stage based on the known three-dimensional geometry of the display apparatus. This allows the irregular blocks to be precisely positioned at vertices before the actual manufacturing process, simplifying the fabrication by reducing on-the-fly adjustments and ensuring accurate placement without increasing manufacturing complexity
3Area of stationary object
If the touch electrode layer is extended into vertices and curved edges, then coverage on multi-facet surfaces is improved, but electrode block uniformity decreases
Solution Approach 1:
The patent applies local quality by using irregular electrode blocks specifically in vertex portions where uniform regular blocks cannot conform to the angular geometry, while maintaining regular blocks in flat and curved edge portions. This localized approach maximizes coverage on the multi-facet surface including vertices, while preserving uniformity in the majority of the electrode layer where regular blocks are used
Solution Approach 2:
The touch electrode layer is segmented into different regions with different block types: vertex portions use irregular blocks to achieve geometric conformity and maximum coverage, while flat and curved edge portions use uniform regular blocks to maintain compositional stability. This segmentation allows the system to achieve both extended coverage and maintained uniformity in appropriate regions
Data Source
AI summary
The present application discloses a touch control panel having a three-dimensional body having one or more vertices portions. The touch control panel includes a touch electrode layer extending into the one or more vertices portions for detecting a touch. The touch electrode layer includes a plurality of touch electrodes, each of which including a plurality of electrode blocks electrically connected together. The plurality of electrode blocks include a plurality of electrode blocks of an irregular shape in the one or more vertices portions of the three-dimensional body. The plurality of electrode blocks of the irregular shape in the one or more vertices portions and multiple electrode blocks of the plurality of electrode blocks outside the one or more vertices portions have different shapes and sizes.