Light Source Module Quantum Dot Layer Integration

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Solution Overview

Problem

Conventional light source modules with quantum dot elements secured through a frame mechanism increase assembling processes and overall thickness due to complex design and assembly requirements.

Innovation Solution

A light source module design where the quantum dot layer is directly disposed on the light guide plate, eliminating the need for a frame securing mechanism and reducing thickness, with optional inclusion of an optical matching layer, isolation layer, and microstructures for enhanced performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a frame securing mechanism is used to secure the quantum dot elements, then the quantum dot elements can be firmly secured in the light source module, but the assembling processes increase and the overall thickness of the light source module increases

Engineering Contradiction:
Improvesecuring of quantum dot elementsVSAvoidassembling processes
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the quantum dot element directly with the light guide plate by disposing the quantum dot layer on the light guide plate surface. This integration eliminates the need for separate frame securing mechanisms and reduces the number of assembly steps while maintaining reliable positioning of the quantum dot elements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts and eliminates the frame securing mechanism from the light source module design. By removing this unnecessary component and its associated assembly processes, the patent simplifies the overall structure while still achieving secure positioning of quantum dot elements through direct integration with the light guide plate.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If a frame securing mechanism is used to secure the quantum dot elements, then the quantum dot elements can be firmly secured in the light source module, but the overall thickness of the light source module increases

Engineering Contradiction:
Improvesecuring of quantum dot elementsVSAvoidoverall thickness
Core Design Contradiction:
ReliabilityVSLength of stationary object

Solution Approach 1:

The patent merges the quantum dot element directly with the light guide plate by disposing the quantum dot layer on the light guide plate surface. This integration eliminates the need for separate frame securing mechanisms and reduces the number of assembly steps while maintaining reliable positioning of the quantum dot elements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts and eliminates the frame securing mechanism from the light source module design. By removing this unnecessary component and its associated assembly steps, the patent simplifies the overall structure while still achieving secure positioning of quantum dot elements through direct integration with the light guide plate.

Inventive Principle:
Principle #2Taking out (Extraction)

3Device complexity

If the quantum dot layer is directly disposed on the light guide plate, then the assembling processes are reduced and the overall thickness is reduced, but the frame securing mechanism design is eliminated

Engineering Contradiction:
Improveassembling processesVSAvoidsecuring mechanism
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent merges the quantum dot element directly with the light guide plate by disposing the quantum dot layer on the light guide plate surface. This integration eliminates the need for separate frame securing mechanisms and reduces the number of assembly steps while maintaining reliable positioning of the quantum dot elements.

Inventive Principle:
Principle #5Merging (Combining)

4Length of stationary object

If the quantum dot layer is directly disposed on the light guide plate, then the assembling processes are reduced and the overall thickness is reduced, but the frame securing mechanism design is eliminated

Engineering Contradiction:
Improveoverall thicknessVSAvoidsecuring mechanism
Core Design Contradiction:
Length of stationary objectVSReliability

Solution Approach 1:

The patent merges the quantum dot element directly with the light guide plate by disposing the quantum dot layer on the light guide plate surface. This integration eliminates the need for separate frame securing mechanisms and reduces the number of assembly steps while maintaining reliable positioning of the quantum dot elements.

Inventive Principle:
Principle #5Merging (Combining)

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

This design simplifies the assembly process, reduces the overall thickness of the light source module, and maintains high color purity and saturation by directly integrating the quantum dot layer on the light guide plate, improving light transmission and scattering efficiency.

Implementation Method 1

quantum dot is a material having favorable light absorption and emission characteristics with narrow Full Width at Half-Maximum (FWHM), high luminous efficiency and considerable wide absorption spectrum for providing significantly high colorimetric purity and saturation

Methodology Applied
Scientific EffectLight absorption and emission: Absorption (EM radiation)

Implementation Method 2

quantum dot elements have been applied in display technologies in recent years so image frames of display apparatus can provide wide color gamut and high color saturation

Methodology Applied
Scientific EffectPhotoluminescence: Photoluminescence

Implementation Method 3

an optical matching layer. The optical matching layer is disposed between the quantum dot layer and the light guide plate, and a refractive index of the optical matching layer is smaller than a refractive index of the light guide plate

Methodology Applied
Scientific EffectRefraction: Refraction

Implementation Method 4

The light guide plate has a light emitting surface, a bottom surface, and a light incidence surface... improving light transmission and scattering efficiency

Methodology Applied
Scientific EffectLight scattering: Scattering

Data Source

PatentUS10330848B2Light source module
Publication Date: 2019.06.25 CHENFENG OPTRONICS CORP
  • US10330848B2 patent drawing
  • US10330848B2 patent drawing
  • US10330848B2 patent drawing

AI summary

A light source module including a light guide plate, a light source, and a quantum dot layer is provided. The light guide plate has a light emitting surface, a bottom surface, and a light incidence surface, wherein the bottom surface is opposite to the light emitting surface, and the light incidence surface connects the bottom surface and the light emitting surface. The light source is disposed beside the light incidence surface. The quantum dot layer is disposed on at least one of the light emitting surface and the bottom surface.