Single Plate Touch Panel with Integrated Sensing Circuit

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Solution Overview

Problem

Conventional touch panels are thick due to the need for additional laminating procedures and protective films, which does not align with current trends towards lighter and thinner designs.

Innovation Solution

A single plate touch panel with a sensing circuit structure that integrates a transparent conductive layer and masking functions, allowing the plate to serve as both a cover lens and a touch control interface, eliminating the need for additional laminating procedures and protective films.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If additional laminating procedures and protective films are used to protect internal traces and components, then the protection function is improved, but the panel thickness increases

Engineering Contradiction:

Improveprotection functionVSAvoidpanel thickness

Core Design Contradiction:

ReliabilityVSLength of moving object

Solution Approach 1:

The patent combines the cover lens and protective film into a single integrated plate structure. The plate serves dual functions as both the cover lens for the display and the protective layer for internal traces and components, eliminating the need for separate laminating procedures and reducing overall panel thickness.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The plate is designed to perform multiple functions simultaneously: it acts as the cover lens for the display panel, provides protection for internal traces and components, and serves as the substrate for mounting the sensing circuit structure. This multi-functionality reduces the number of separate components needed.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If multiple separate components (substrate, cover lens, protective film) are used, then the protection and touch control functions are improved, but the device complexity increases

Engineering Contradiction:

Improvetouch control functionVSAvoidnumber of components

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the substrate and cover lens into a single plate, and integrates the protective film function into this same plate. The sensing circuit structure is then mounted directly on this integrated plate, reducing the total number of components and simplifying the overall device structure while maintaining all necessary functions.

Inventive Principle:

Principle #5Merging (Combining)

3Strength

If additional laminating procedures are used, then the structural hardness is improved, but the manufacturing cost and space requirements increase

Engineering Contradiction:

Improvestructural hardnessVSAvoidmanufacturing cost

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The patent extracts and eliminates the redundant laminating procedures from the manufacturing process. By using a single integrated plate that inherently provides both structural support and protection, the complex multi-step lamination process is replaced with a simpler manufacturing approach, reducing both cost and space requirements.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS9348478B2Touch panel with multi-function single plate

Publication Date: 2016.05.24 WISTRON CORP

AI summary

A touch panel with single plate includes a plate and a sensing circuit structure. The plate is used as a cover. The sensing circuit structure includes a transparent conductive layer. The transparent conductive layer has a plurality of first transparent conductive portions and a plurality of second transparent conductive portions. The first transparent conductive portions are substantially disposed on the plate along with a first axis. The second transparent conductive portions are substantially disposed on the plate along with a second axis.