Touch Electrode Graphic Structure for Display Visibility
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Solution Overview
Problem
The integration of touch electrodes into display panels for enhanced sensitivity reduces visibility of images, leading to compromised display performance due to irregular graphic designs.
Innovation Solution
A graphic structure of touch electrodes arranged in an array mode with mutually fitting and insulated touch electrode assemblies, where the first and second touch electrodes have uniform effective widths with ratios between 0.9 and 1.12, ensuring consistent display signal influence and improved capacitive effective areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If touch electrodes are designed as mutually fit irregular graphics to enhance touch sensitivity, then touch sensitivity is improved, but visibility of images is compromised and display performance is reduced
Solution Approach 1:
The patent changes the geometric parameters of touch electrodes by constraining the ratio of effective widths to be within 0.9-1.12, transforming irregular graphics into substantially uniform rectangular or square shapes. This parameter control resolves the contradiction by maintaining touch sensitivity through adequate electrode area while eliminating visible graphics during display through uniformity.
Solution Approach 2:
The patent applies asymmetry in reverse by enforcing symmetry and uniformity in electrode dimensions. By making all touch electrodes have substantially equal effective widths and lengths within a narrow ratio range, the design eliminates the asymmetric irregular graphics that cause visibility issues while preserving the capacitive coupling needed for touch sensitivity.
2Length of stationary object
If touch electrodes are integrated into display panels to reduce thickness, then panel thickness is reduced and touch function is achieved, but irregular graphic designs cause visibility issues
Solution Approach 1:
The patent controls the dimensional parameters of integrated touch electrodes by limiting the effective width ratio to 0.9-1.12, ensuring that electrodes appear substantially uniform in size. This resolves the visibility issue caused by irregular graphics while maintaining the integrated structure that achieves reduced panel thickness.
3Illumination intensity
If touch electrodes are designed with uniform effective widths and lengths within specific ratios, then display visibility is improved and graphic visibility issues are prevented, but touch sensitivity must be maintained
Solution Approach 1:
The patent identifies and controls critical dimensional parameters (effective width ratios between 0.9-1.12) that simultaneously achieve uniform appearance for good visibility and adequate capacitive area for touch sensitivity. This parameter optimization resolves the contradiction by finding the optimal range that satisfies both requirements.
Solution Approach 2:
The patent applies a narrow ratio range (0.9-1.12) that is slightly excessive in terms of uniformity requirements, ensuring that electrodes are substantially equal in size. This partial constraint on dimensional variation achieves uniform appearance without overly restricting the absolute size needed for touch sensitivity.
Data Source
AI summary
A graphic structure of a touch electrode is provided, and the graphic structure of a touch electrode a plurality of touch electrode assemblies which are arranged in an array mode and at least one of which is mutually fit with and insulated from the adjacent touch electrode assembly. The touch electrode assembly comprises at least one first touch electrode and at least one second touch electrode, and the first touch electrodes and the second touch electrodes are insulated from each other; the ratio of widths of any first touch electrode and any second touch electrode in the first direction is in the range of 0.9-1.12, thereby solving the issue of graphic visibility when a touch display panel with mutually fit touch electrodes displays an image. Further, the touch display panel and a touch display device disclosure also have the characteristic of high touch sensitivity, so that a user has a better touch experience.