Touch Barrier Panel for Integrated 3D Display and Sensing

Solution Overview

Problem

Current display devices that integrate touch sensing and 3-dimensional image display require additional panels, increasing manufacturing costs and thickness, as they need separate panels for touch sensing and 3D image display.

Innovation Solution

A display device with a touch barrier panel that includes a liquid crystal layer, upper and lower electrodes, and polarizers, operable in both touch sensing and 3D image display modes, using a time-division method to manage both functions, reducing the need for additional panels and maintaining display quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate panels are used for touch sensing and 3D image display, then both functions can be implemented, but manufacturing cost and device thickness increase

Engineering Contradiction:

Improvefunctional integrationVSAvoidpanel structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the touch sensing panel and 3D display panel into a single integrated panel structure. The touch barrier panel serves dual purposes: it acts as the touch sensing surface and simultaneously functions as the 3D display barrier to separate left and right eye images. This eliminates the need for separate panels and reduces overall device complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The touch barrier panel is designed with multi-functionality, serving both as a touch sensing element and as a 3D display barrier. By incorporating both touch sensing electrodes and 3D barrier structures within the same panel, the device achieves universal functionality without requiring additional dedicated components for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If separate panels are used for touch sensing and 3D image display, then both functions can be implemented, but manufacturing cost increases

Engineering Contradiction:

Improvefunctional integrationVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent merges the touch sensing panel and 3D display panel into a single integrated panel structure. The touch barrier panel serves dual purposes: it acts as the touch sensing surface and simultaneously functions as the 3D display barrier to separate left and right eye images. This eliminates the need for separate panels and reduces overall device complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The touch barrier panel is designed with multi-functionality, serving both as a touch sensing element and as a 3D display barrier. By incorporating both touch sensing electrodes and 3D barrier structures within the same panel, the device achieves universal functionality without requiring additional dedicated components for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Device complexity

If a single panel is used for both touch sensing and 3D display, then manufacturing cost and thickness are reduced, but display quality may be affected

Engineering Contradiction:

Improvepanel structureVSAvoiddisplay quality

Core Design Contradiction:

Device complexityVSManufacturing precision

Solution Approach 1:

The patent applies local quality by creating different functional regions within the touch barrier panel. The panel incorporates specific structural features in different areas: barrier structures for 3D display functionality and electrode patterns for touch sensing, while maintaining overall integration. This localized functional differentiation ensures high display quality while achieving functional integration.

Inventive Principle:

Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution reduces manufacturing costs and thickness while maintaining the display quality of 3D images by integrating touch sensing and 3D image display functions into a single panel, allowing for simultaneous operation in a time-division manner.

Implementation Method 1

a liquid crystal layer, upper and lower electrodes, and polarizers, the touch barrier panel being operable both in a touch sensing mode and a 3-dimensional image display mode

Methodology Applied

Scientific EffectLiquid crystal electro-optic effect: Electro-Optic Effects

Data Source

PatentUS8976137B2Display device for touch sensing and 3-dimensional image display, and driving method thereof

Publication Date: 2015.03.10 SAMSUNG DISPLAY CO LTD

AI summary

A touch barrier panel having a touch sensing capability and a 3-dimensional image display capability is disposed on a display panel such that manufacturing cost may be reduced and the thickness thereof is relatively thin. Also, the negative liquid crystal that is not affected by the vertical electric field is used such that a mode change speed and response speed may be improved.