Display Device Polarization Member Scattering Patterns

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing display devices face challenges in reducing external light reflectance in non-display areas, which affects visibility and efficiency, as current solutions do not effectively minimize reflectance in these regions.

Innovation Solution

A display device with a first polarization member featuring scattering patterns or engraved patterns in the non-display area, which reduces external light reflectance by scattering incident light, achieving a reflectance of less than 4% in the light blocking area, and integrating these patterns with the polarization member to enhance visibility without additional components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a light blocking area is added to block external light in non-display areas, then external light reflectance is reduced, but the device structure becomes more complex and visibility is compromised

Engineering Contradiction:

Improveexternal light reflectanceVSAvoidstructure complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent merges the light blocking function with the existing polarization member by integrating scattering patterns directly into the polarization member structure. This combination eliminates the need for separate light blocking components while achieving effective external light reflectance reduction to less than 4% in non-display areas.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The scattering patterns are selectively applied only to the light blocking area corresponding to non-display areas, while the display area maintains its original polarization properties. This localized modification ensures that external light reflectance is reduced in non-display areas without affecting the display quality in the display area.

Inventive Principle:

Principle #3Local quality

2Object-affected harmful factors

If scattering patterns are added to reduce external light reflectance, then visibility is improved, but manufacturing complexity increases

Engineering Contradiction:

Improveexternal light reflectanceVSAvoidmanufacturing complexity

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The scattering patterns are integrated into the polarization member as a unified structure, allowing both components to be manufactured together in a single process. This merging approach simplifies manufacturing by eliminating the need for separate assembly steps for light blocking components.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The scattering patterns are designed with specific geometric parameters (size, shape, spacing) that can be controlled during the polarization member manufacturing process. By optimizing these parameters, the patent achieves effective light scattering while maintaining compatibility with existing manufacturing capabilities.

Inventive Principle:

Principle #35Parameter changes

3Object-affected harmful factors

If the polarization member thickness is increased to improve light blocking, then external light reflectance is reduced, but the display device thickness increases

Engineering Contradiction:

Improveexternal light reflectanceVSAvoiddisplay device thickness

Core Design Contradiction:

Object-affected harmful factorsVSLength of stationary object

Solution Approach 1:

The polarization member is designed with variable thickness: the light blocking area corresponding to non-display areas has a greater thickness to provide enhanced light blocking and scattering, while the display area maintains its original thickness to preserve display quality and keep the overall device thin.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The scattering patterns incorporate curved or conical structures that scatter incident light effectively. These geometric features enhance light blocking performance without requiring a uniform increase in the entire polarization member thickness, thus maintaining device thinness while reducing external light reflectance.

Inventive Principle:

Principle #14Spheroidality (Curvature)

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 effectively reduces external light reflectance in non-display areas, improving visibility and simplifying production by integrating scattering patterns with the polarization member, thus enhancing the display device's performance and cost-effectiveness.

Implementation Method 1

the first polarization member corresponding to the light blocking area includes a plurality of scattering patterns which reduce reflectance of the non-display area

Methodology Applied

Scientific EffectLight scattering: Scattering

Data Source

PatentUS9977156B2Display device

Publication Date: 2018.05.22 SAMSUNG DISPLAY CO LTD

AI summary

Provided is a display device including: a display panel including a display area where an image is displayed and a non-display area surrounding the display area; and a first polarization member disposed on a front surface of the display panel and including a polarization area corresponding to the display area and a light blocking area corresponding to the non-display area, wherein the first polarization member corresponding to the light blocking area includes a plurality of scattering patterns which reduce reflectance of the non-display area.