Light-Emitting Module Shielding Layout for Gap Light Interference

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Solution Overview

Problem

Current light-emitting devices face challenges in improving performance and quality, particularly in the integration and shielding of light-emitting modules to enhance efficiency and reduce interference.

Innovation Solution

A method for manufacturing a light-emitting device involves transferring light-emitting modules with light-shielding structures, where the light-shielding structure overlaps with the gap between modules, providing a solution to enhance performance and quality by reducing interference and improving light distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If light-emitting modules are placed close together to increase device area utilization, then productivity and area efficiency are improved, but light interference between adjacent modules increases and brightness uniformity deteriorates

Engineering Contradiction:
Improvearea utilizationVSAvoidlight interference
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

A light-shielding structure is introduced as an intermediary element between adjacent light-emitting modules. This structure includes a light-shielding layer disposed in the gap between modules, effectively blocking stray light from one module from interfering with adjacent modules while allowing the modules to remain closely spaced for high area utilization.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Illumination intensity

If light-shielding structures are added to reduce light interference, then brightness uniformity and image quality are improved, but device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvebrightness uniformityVSAvoidstructure complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The light-shielding structure is applied locally only in the gap regions between adjacent light-emitting modules rather than across the entire device. The light-shielding layer is positioned specifically where stray light interference occurs, providing targeted protection while minimizing overall structural complexity and material usage.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The light-shielding structure is segmented into discrete regions corresponding to the gaps between modules. Each light-shielding layer is independently formed in specific gap areas, allowing for modular manufacturing and reducing the overall complexity compared to a continuous shielding structure.

Inventive Principle:
Principle #1Segmentation

3Area of stationary object

If gaps between light-emitting modules are reduced to improve integration density, then area efficiency is improved, but the effectiveness of light-shielding structures is reduced and light interference increases

Engineering Contradiction:
Improveintegration densityVSAvoidlight-shielding effectiveness
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The light-shielding approach transitions from a horizontal separation strategy (relying on gap width) to a vertical dimension strategy. The light-shielding layer is disposed vertically within the gap space, extending from the substrate toward the light-emitting modules, effectively blocking light paths without requiring large horizontal gaps.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 described method effectively enhances the performance and quality of light-emitting devices by minimizing light interference and optimizing module placement, leading to improved brightness uniformity and reduced collisions between light-emitting units.

Implementation Method 1

a light-shielding structure on the first substrate, wherein there is a gap between the first light-emitting module and the second light-emitting module, and the light-shielding structure is overlapped with the gap

Methodology Applied
Scientific EffectLight absorption: Absorption (EM radiation)

Data Source

PatentUS11742464B2Light-emitting devices and methods for manufacturing the same
Publication Date: 2023.08.29 INNOLUX CORP
  • US11742464B2 patent drawing
  • US11742464B2 patent drawing
  • US11742464B2 patent drawing

AI summary

A light-emitting device is provided. The light-emitting device includes a first substrate. The light-emitting device also includes a second substrate including a light-shielding structure. The light-emitting device further includes a first light-emitting module and a second light-emitting module being adjacent to each other. The first light-emitting module and the second light-emitting module are disposed between the first substrate and the second substrate. The first light-emitting module and the second light-emitting module are spaced apart by a gap, and the light-shielding structure at least partially covers the gap in a top view direction of the light-emitting device.