Display Light-Blocking Layer with Irregular Patterns for Flare Control

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Solution Overview

Problem

Existing display devices face challenges in maintaining high transmittance in areas overlapping electronic modules, leading to light flare and reduced quality of signals provided or output from these modules.

Innovation Solution

A display device design with irregularly arranged light blocking patterns in the display area overlapping electronic modules, combined with regular arrangements in other areas, to prevent light scattering without altering electrode or pixel definition layer configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If light blocking patterns are arranged regularly in the display area overlapping the electronic module, then manufacturing precision is improved, but light flare occurs and signal quality deteriorates

Engineering Contradiction:
Improvearrangement precision of light blocking patternsVSAvoidlight flare
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The patent applies asymmetry by arranging light blocking patterns irregularly in the display area overlapping the electronic module, rather than using a regular grid pattern. This irregular arrangement prevents systematic light reflection paths while maintaining effective light blocking, thereby reducing light flare and improving signal quality without sacrificing manufacturing feasibility.

Inventive Principle:
Principle #4Asymmetry

2Reliability

If transmittance is increased in the display area overlapping the electronic module, then signal quality is improved, but light blocking capability deteriorates

Engineering Contradiction:
Improvesignal qualityVSAvoidlight scattering
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies local quality by implementing different light blocking pattern arrangements in different display areas. Specifically, the display area overlapping the electronic module uses an irregular arrangement to maximize transmittance and signal quality, while other display areas may use different arrangements optimized for their specific functions. This localized optimization allows each area to perform its specific function at peak efficiency.

Inventive Principle:
Principle #3Local quality

3Object-affected harmful factors

If irregular arrangement of light blocking patterns is used in the display area overlapping the electronic module, then light flare is prevented and signal quality is improved, but device complexity increases

Engineering Contradiction:
Improvelight flare preventionVSAvoidarrangement complexity of light blocking patterns
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the display area into different regions with different light blocking pattern arrangements. The display area overlapping the electronic module is segmented from other display areas, each receiving optimized treatment for its specific functional requirements. This segmentation allows complex irregular arrangements only where necessary (overlapping the electronic module) while maintaining simpler arrangements elsewhere, thereby managing overall device complexity.

Inventive Principle:
Principle #1Segmentation

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

Enhances transmittance in display areas, improving signal quality and reliability by preventing light flare, thus optimizing the performance of electronic modules within the display device.

Implementation Method 1

a light blocking layer disposed between the base layer and the light emitting element layer. The light emitting element layer includes a plurality of first light emitting elements disposed in the first display area

Methodology Applied
Scientific EffectLight blocking: Absorption (EM radiation)

Data Source

PatentUS12419162B2Display device including light blocking layer
Publication Date: 2025.09.16 SAMSUNG DISPLAY CO LTD
  • US12419162B2 patent drawing
  • US12419162B2 patent drawing
  • US12419162B2 patent drawing

AI summary

A display device includes an electronic module and a display panel including a first display area that overlaps the electronic module and a second display area that does not overlap the electronic module. The display panel includes a base layer, a light emitting element layer disposed on the base layer, and a light blocking layer disposed between the base layer and the light emitting element layer. The light emitting element layer includes a plurality of first light emitting elements disposed in the first display area and a plurality of second light emitting elements disposed in the second display area. The light blocking layer includes a plurality of first light blocking patterns disposed in the first display area and respectively overlapping the first light emitting elements.