Integrated Touch Screen Two-Side Strengthened Glass

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Solution Overview

Problem

Conventional touch screen panels with integrated liquid crystal panels face challenges in maintaining thinness and facilitating mass production due to the need for strengthening glass substrates, which increases thickness and complicates the manufacturing process.

Innovation Solution

Implementing a touch sensor module with a substrate formed from two side-strengthened glass substrates, allowing for improved strength and simplified processes by eliminating the need for six-side strengthening of glass substrates, and using alternative materials like acrylic resin or PET for the transparent window.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If six side strengthened glass is used for the window to improve strength, then the strength of the touch screen panel is improved, but the thickness increases and mass production becomes difficult

Engineering Contradiction:

Improvestrength of touch screen panelVSAvoidease of manufacture

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The patent changes the glass strengthening method from six-side strengthening to two-side strengthening, modifying the processing parameters to achieve adequate strength while enabling mass production. The two-side strengthened glass substrates are bonded together to form the window, providing sufficient structural strength without requiring the complex six-side strengthening process that prevents mass production.

Inventive Principle:

Principle #35Parameter changes

2Strength

If six side strengthened glass is used for the window to improve strength, then the strength of the touch screen panel is improved, but the thickness increases

Engineering Contradiction:

Improvestrength of touch screen panelVSAvoidthickness of touch screen panel

Core Design Contradiction:

StrengthVSLength of stationary object

Solution Approach 1:

The patent uses a composite structure consisting of two two-side strengthened glass substrates bonded together with an adhesive layer. This composite construction provides sufficient strength equivalent to or greater than six-side strengthened glass while maintaining a thinner overall thickness, as each individual substrate can be thinner than a single six-side strengthened substrate would need to be.

Inventive Principle:

Principle #40Composite materials

3Ease of manufacture

If two side strengthened glass substrates are used for the window, then the ease of manufacture is improved and mass production is enabled, but the strength may be reduced compared to six side strengthened glass

Engineering Contradiction:

Improveease of manufactureVSAvoidstrength of touch screen panel

Core Design Contradiction:

Ease of manufactureVSStrength

Solution Approach 1:

The patent merges two two-side strengthened glass substrates together with an adhesive layer to create a composite window structure. The combined strength of the two substrates provides adequate structural support for the touch screen panel, enabling mass production while maintaining necessary strength requirements.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS9323361B2Integrated touch screen

Publication Date: 2016.04.26 LG INNOTEK CO LTD

AI summary

Disclosed is a structure of a touch screen which is integrally implemented with a liquid crystal panel. In the structure, a touch sensor module is integrally implemented with the liquid crystal panel, a substrate of the liquid crystal panel is formed of two side strengthened glass, and the touch sensor module is integrally implemented on the two strengthened glass, thereby being capable of improving strength of the whole touch sensor module and simplifying a process.