Light-Emitting Module Gap Shielding for Uniform Light Distribution

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Solution Overview

Problem

Current light-emitting devices lack improved performance and quality, necessitating a new design that enhances their efficiency and output.

Innovation Solution

A light-emitting device comprising two adjacent light-emitting modules with a substrate and a light-shielding structure, where the modules are spaced apart by a gap and the light-shielding structure overlaps with the gap, providing improved light distribution and reduced interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If light-emitting modules are placed adjacent to each other to increase device area utilization, then productivity and device density are improved, but light interference and collision between modules increase

Engineering Contradiction:
Improvedevice densityVSAvoidlight interference
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

A light-shielding structure is introduced as an intermediary element positioned between adjacent light-emitting modules. This structure selectively blocks light paths that would cause interference or collision between modules while allowing the modules to remain in close proximity, thus maintaining high device density without sacrificing optical performance.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The light-shielding structure is strategically positioned only in specific regions where light interference occurs between modules, rather than uniformly across the entire device. This localized approach blocks harmful light paths while preserving light emission in areas where it is needed, optimizing both module density and optical performance.

Inventive Principle:
Principle #3Local quality

2Illumination intensity

If light-emitting modules are spaced apart to reduce light interference, then light distribution quality is improved, but device area utilization and productivity decrease

Engineering Contradiction:
Improvelight distribution uniformityVSAvoiddevice area utilization
Core Design Contradiction:
Illumination intensityVSProductivity

Solution Approach 1:

The light-shielding structure acts as a mediator that enables modules to be placed closer together by actively managing light paths. It creates a controlled optical environment where modules can maintain close spacing for high density while the shielding structure prevents light from one module from interfering with adjacent modules, thus achieving both high area utilization and uniform light distribution.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Illumination intensity

If a light-shielding structure is added between modules to reduce light interference, then light distribution quality is improved, but device complexity increases

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

Solution Approach 1:

The light-shielding structure is implemented only in specific locations where light interference problems occur between modules, rather than throughout the entire device. This localized implementation minimizes the added structural complexity while effectively addressing the light distribution uniformity issue in critical areas.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11881545B2Light-emitting devices having modules spaced apart by a gap and a light-shielding structure partially overlapping the gap
Publication Date: 2024.01.23 INNOLUX CORP
  • US11881545B2 patent drawing
  • US11881545B2 patent drawing
  • US11881545B2 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.