Integrated Filter Module for Thin Touch Screens

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Solution Overview

Problem

Current touch screens require a separate touch panel assembly, which increases thickness, weight, and manufacturing costs due to complex assembly processes and the need for additional components.

Innovation Solution

A filter module with a substrate, shielding matrix, color resistor, and conductive layer is integrated into the touch screen, providing both touch operation and filtering functions, eliminating the need for a separate touch panel and simplifying assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a separate touch panel is assembled onto the display screen, then the touch function is achieved, but the thickness and weight of the electronic product increase

Engineering Contradiction:

Improvetouch functionVSAvoidthickness

Core Design Contradiction:

Ease of operationVSLength of moving object

Solution Approach 1:

The patent combines the touch panel and display screen into a single integrated structure where the touch-sensitive coating layer is formed directly on the display screen substrate. The conductive patterns are embedded within the same coating layer that provides both touch sensing and display functions, eliminating the need for separate assembly and reducing overall thickness.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The coating layer serves multiple functions simultaneously: it acts as the touch-sensitive layer for detecting user input, provides the conductive patterns for electrical connections, and maintains the display screen's optical properties. This multi-functionality eliminates the need for separate dedicated touch panel components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If a separate touch panel is assembled onto the display screen, then the touch function is achieved, but the manufacturing cost increases due to complex assembly processes

Engineering Contradiction:

Improvetouch functionVSAvoidmanufacturing cost

Core Design Contradiction:

Ease of operationVSEase of manufacture

Solution Approach 1:

The patent merges the touch panel and display screen manufacturing into a single integrated process. The conductive patterns are formed within the coating layer using screen printing or other deposition techniques during the display screen manufacturing process itself, eliminating separate touch panel assembly steps and reducing manufacturing complexity and cost.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The conductive patterns are preliminarily formed within the coating layer during the display screen manufacturing process before final assembly. This preliminary integration of touch functionality into the display manufacturing process eliminates subsequent assembly steps and reduces overall manufacturing cost.

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If a separate touch panel is assembled onto the display screen, then the touch function is achieved, but the probability of undesired products increases

Engineering Contradiction:

Improvetouch functionVSAvoidprobability of undesired products

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent combines the touch panel and display screen into a single integrated structure with fewer interfaces and assembly steps. By forming the conductive patterns and touch-sensitive layer directly on the display screen substrate, it eliminates potential assembly errors, misalignments, and connection issues that occur with separate component assembly, thereby reducing the probability of defective products.

Inventive Principle:

Principle #5Merging (Combining)

4Ease of operation

If a separate touch panel is assembled onto the display screen, then the touch function is achieved, but the weight of the electronic product increases

Engineering Contradiction:

Improvetouch functionVSAvoidweight

Core Design Contradiction:

Ease of operationVSWeight of moving object

Solution Approach 1:

The patent merges the touch panel and display screen into a single integrated structure, eliminating the weight of separate touch panel components and their mounting hardware. The conductive patterns are formed within the existing coating layer of the display screen, adding minimal weight while providing full touch functionality.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS9977275B2Filter module comprising first and second conductive patterns embedded in a patterned grooved surface of a coating layer and touch screen having the same

Publication Date: 2018.05.22 ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD

AI summary

The present disclosure relates to a filter module and a touch screen having the filter module. The filter module includes a substrate, the substrate includes a first surface and a second surface opposite to the first surface, the first surface is provided with a shielding matrix and a color resister distributed in the shielding matrix, the shielding matrix includes intersecting grid lines, the grid lines intersect to form grids, the color resister is formed in the grids, the second surface is provided with a conductive layer, the conductive layer comprises a first conductive pattern and a second conductive pattern, the first conductive pattern and the second conductive pattern are spaced apart from each other to form a sensing structure, the conductive layer is coated with a coating layer.