Integrated Touch and 3D Display Panel Adhesion

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional liquid crystal display devices with integrated touch and three-dimensional image display panels face issues of increased thickness, weight, and manufacturing complexity due to the use of separate substrates and adhesives, leading to higher costs.

Innovation Solution

A liquid crystal display device design where a touch and three-dimensional image display panel is adhered to a liquid crystal panel using a single adhesive layer, with electrodes on both substrates for touch sensing and three-dimensional image creation, simplifying the manufacturing process and eliminating the need for separate touch panels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate substrates are used for touch panel and three-dimensional image display panel, then touch functionality and three-dimensional image display functionality can be independently implemented, but device thickness and weight increase

Engineering Contradiction:

Improvetouch functionality and three-dimensional image display functionalityVSAvoiddevice weight

Core Design Contradiction:

Adaptability or versatilityVSWeight of stationary object

Solution Approach 1:

The patent merges the touch panel substrate and three-dimensional image display panel substrate into a single integrated substrate structure. The touch electrodes and three-dimensional display electrodes are formed on the same substrate, eliminating the need for separate substrates and reducing overall device weight while maintaining both touch sensing and three-dimensional image display functionalities.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single substrate serves multiple functions simultaneously: it acts as both the touch sensing substrate and the three-dimensional image display substrate. The substrate integrates touch electrode patterns and three-dimensional display electrode patterns, making it a multi-functional component that replaces what would traditionally require separate dedicated substrates.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If separate substrates are used for touch panel and three-dimensional image display panel, then each panel can be optimized independently, but manufacturing complexity increases

Engineering Contradiction:

Improvepanel optimizationVSAvoidmanufacturing process complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The manufacturing process merges the fabrication of touch panel and three-dimensional image display panel into a single integrated process flow. Electrodes, insulation films, and liquid crystal layers are formed simultaneously for both functions on the same substrate, reducing the number of assembly steps and simplifying manufacturing while allowing independent optimization of electrode patterns during the design phase.

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If multiple adhesive layers are used to adhere touch panel and three-dimensional image display panel to liquid crystal panel, then each panel can be securely attached, but device thickness increases

Engineering Contradiction:

Improvepanel attachment securityVSAvoiddevice thickness

Core Design Contradiction:

ReliabilityVSLength of stationary object

Solution Approach 1:

The patent eliminates the need for multiple separate adhesive layers by integrating the touch panel and three-dimensional image display panel into a single assembly that attaches to the liquid crystal panel as one unit. This single integrated structure requires only one adhesive layer, significantly reducing the overall thickness while maintaining secure attachment through the unified structure.

Inventive Principle:

Principle #5Merging (Combining)

4Adaptability or versatility

If separate touch panel and three-dimensional image display panel are used, then each panel can be independently designed, but manufacturing costs increase

Engineering Contradiction:

Improveindependent panel designVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent combines the manufacturing of touch panel and three-dimensional image display panel into a single integrated manufacturing process. By forming all electrodes, insulation films, and liquid crystal layers on one substrate in one process flow, the patent eliminates the costs associated with producing, testing, and assembling separate panels, thereby reducing overall manufacturing costs while preserving design flexibility through independent electrode pattern design.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS10175801B2Liquid crystal display device having touch and three-dimensional display functions and method for manufacturing the same

Publication Date: 2019.01.08 LG DISPLAY CO LTD

AI summary

Disclosed are a liquid crystal display device having touch and three-dimensional display functions and a method for manufacturing the same. The liquid crystal display device includes a touch and three-dimensional image display panel adhered to a liquid crystal panel through an adhesive layer, wherein the touch and three-dimensional image display panel includes a lower substrate provided with first and second electrodes for realizing a three-dimensional image, a upper substrate provided with third and fourth electrodes for sensing touch and a common electrode for realizing the three-dimensional image, and a liquid crystal display filled between the upper and lower substrates.