Touch Display Panel Insulated Optical Compensation Line
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Solution Overview
Problem
Current touch display panels with metal mesh structures face issues in maintaining uniform optical properties, leading to poor display performance due to gaps and disconnections between electrodes, which affect the reflective properties and overall display quality.
Innovation Solution
Incorporating insulated optical compensation lines with the same optical properties as the metal material, these lines connect and fill gaps between the electrodes, forming a continuous mesh structure that ensures uniform reflective properties across the touch panel, preventing poor display issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal mesh structures are used for touch electrodes, then electrical conductivity and transmittance are improved, but gaps and disconnections occur between electrodes leading to non-uniform optical properties
Solution Approach 1:
An optical compensation line is introduced as an intermediary element between the first and second touch electrodes. This optical compensation line has the same optical properties as the metal material and fills the gap between electrodes, serving as a mediator to restore uniform optical properties without affecting the electrical conductivity of the metal mesh structures.
Solution Approach 2:
The optical compensation line is designed with the same optical properties as the metal material used in the touch electrodes. By using homogeneous optical properties (same reflectivity, transmittance characteristics), the gap between electrodes is visually and optically compensated, creating a uniform appearance across the entire touch panel surface.
2Ease of manufacture
If gaps exist between metal mesh electrodes, then manufacturing is simplified, but reflective properties become non-uniform affecting display quality
Solution Approach 1:
The optical compensation line acts as a mediator that fills the gaps between electrodes, ensuring uniform reflective properties across the touch panel. This allows the metal mesh electrodes to maintain their simple gap-filled structure for ease of manufacture while achieving the precision requirement of uniform optical properties through the compensating line.
Solution Approach 2:
The optical compensation line changes the optical parameters in the gap region by introducing a material with matching optical properties (reflectivity, transmittance) to the metal material. This parameter change ensures that the gap area has the same optical characteristics as the electrode areas, achieving uniform reflective properties throughout the panel.
3Device complexity
If touch electrodes are positioned close together, then device integration is improved, but gaps and disconnections increase affecting optical uniformity
Solution Approach 1:
The optical compensation line serves as a mediator that enables closer electrode positioning while maintaining optical uniformity. By filling the smaller gaps between closely spaced electrodes with the compensation line, the system achieves high device integration without sacrificing optical consistency.
Solution Approach 2:
The optical compensation line maintains homogeneity in optical properties across the entire touch panel surface, even when electrodes are positioned close together. The matching optical characteristics (reflectivity, transmittance) of the compensation line and metal material ensure optical consistency regardless of the reduced spacing between electrodes.
Data Source
AI summary
A touch display panel and an electronic device. The touch display panel includes: a substrate; a first touch electrode and a second touch electrode adjacent to each other, and both having a metal mesh structure, wherein the first touch electrode includes a first metal line extending toward the second touch electrode, the second touch electrode includes a second metal line extending toward the first touch electrode, the first metal line and the second metal line are disposed collinearly and are spaced apart from each other, the touch display panel further includes an insulated first optical compensation line disposed between the first metal line and the second metal line, the first optical compensation line is disposed collinearly with the first metal line and the second metal line, and both end portions of the first optical compensation line abut against the first metal line and the second metal line, respectively.