Touch Control Substrate Electrode Layout for Signal Uniformity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing touch control substrates suffer from uneven signal distribution and poor uniformity, leading to coordinate deviations and reduced linearity when using a stylus for operations like drawing, which affects user experience and professional performance in electronic devices.
Innovation Solution
The touch control substrate is designed with a specific arrangement of first and second electrode parts, where each part includes structure and branch parts that are electrically connected to form electrodes, with size and shape optimizations to ensure uniform signal distribution and reduced coordinate deviations, enhancing linearity and user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional touch control substrate designs are used, then the basic touch control function is achieved, but coordinate deviation occurs and linearity is poor due to uneven signal distribution
Solution Approach 1:
The patent applies local quality by designing electrode parts with different structures in different regions. Specifically, the electrode parts include main channel parts for signal transmission and branch parts for signal distribution, with each part having optimized dimensions and configurations suited to its local function. This local differentiation ensures uniform signal distribution across the touch control substrate while maintaining coordinate accuracy.
Solution Approach 2:
The electrode parts are segmented into multiple functional components including main channel parts and branch parts. Each segment serves a specific purpose in the signal distribution network, with the main channel providing primary signal transmission and branch parts distributing signals to different touch control units. This segmentation allows independent optimization of each part to achieve overall signal uniformity.
2Reliability
If the first structure part is made larger to improve signal distribution, then signal uniformity improves, but the overall device size increases
Solution Approach 1:
The patent extends the electrode structure into multiple dimensions by adding branch parts that extend in directions different from the main channel. Instead of simply increasing the size of the main channel in one dimension, the signal distribution is achieved by creating a three-dimensional network of electrode parts with varying lengths, widths, and orientations. This dimensional approach allows comprehensive signal coverage without excessive area occupation.
Solution Approach 2:
The electrode parts are designed with dynamic dimensional relationships where the lengths and widths of main channel and branch parts are proportionally related. The first structure part's dimensions are dynamically adjusted based on the second structure part's dimensions, creating a scalable design that maintains signal uniformity while adapting to different device size requirements.
Data Source
AI summary
A touch control substrate or assembly, a touch display, and an electronic device are disclosed. The touch control assembly includes a substrate and a touch control layer, and the touch control layer is disposed on a surface of the substrate. The touch control layer includes a plurality of touch control units that are arranged in an array, and each touch control unit includes two first electrode parts and two second electrode parts. The two first electrode parts are electrically connected, and the two second electrode parts are also electrically connected. The first electrode part extends in a first direction, the second electrode part extends in a second direction, and the first direction intersects with the second direction. The first electrode part includes a first structure part and a second structure part that are connected, and a length a of the second structure part in the first direction. Other embodiments are disclosed.