Touch Display Device With Distinct Electrode Boundary Shapes
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Solution Overview
Problem
Existing touch display devices face challenges in improving touch sensing performance without compromising image display performance, and current repair methods are complex due to the integration of touch sensors with display panels.
Innovation Solution
A touch display device design featuring light-emitting elements, encapsulation layers, touch electrodes, and routing lines with unique boundary shapes that allow for easy repair and enhanced touch sensing performance, including the use of dummy electrodes and routing lines with distinct cutting directions to differentiate and simplify the arrangement of touch sensor structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If touch electrodes and routing lines are integrated with display panel using conventional identical boundary shapes, then manufacturing is simplified, but repair becomes complex and inspection efficiency is reduced
Solution Approach 1:
The patent applies visual differentiation through distinct boundary shapes (analogous to color changes in TRIZ) to differentiate between touch electrodes, routing lines, and dummy electrodes. Each component type has a unique boundary shape that enables rapid visual identification during inspection and repair processes, eliminating the need for complex documentation or testing to identify component functions.
Solution Approach 2:
The patent segments the touch sensor components by assigning different boundary shapes to different functional elements (touch electrodes, routing lines, dummy electrodes). This segmentation creates visual categories that simplify the complex arrangement, allowing repair personnel to quickly identify and work with specific component types without confusion.
2Productivity
If distinct boundary shapes are used for touch electrodes and routing lines, then inspection and repair efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
By using distinct boundary shapes as visual identifiers, the patent enables rapid inspection and repair without requiring high-precision measurement equipment or complex verification procedures. The visual differentiation is sufficient for identification purposes, reducing the actual precision requirements compared to conventional identical shapes that require additional verification steps.
3Reliability
If conventional touch sensor structures are used, then image display performance is maintained, but touch sensing performance is compromised
Solution Approach 1:
The patent introduces dummy electrodes with distinct boundary shapes as separate functional elements within the touch sensor structure. This segmentation allows the dummy electrodes to serve specific functions (such as filling gaps or providing reference signals) that enhance overall touch sensing performance while maintaining a manageable structural complexity through clear visual differentiation.
Data Source
AI summary
Embodiments of the present disclosure are related to a touch display device. By differentiating a cutting shape of a boundary of a portion constituting a touch electrode or a touch routing line and a cutting shape of a boundary of a portion constituting a dummy electrode, a repair of a touch sensor structure can be performed easily in a process implementing the touch sensor structure in a display panel.