Light Source Module with Zone-Segmented Microstructures

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Solution Overview

Problem

Existing decorative lighting panels struggle to provide dynamic and vivid images while maintaining cost-effectiveness, as increasing the number of light sources or using addressable light sources raises production costs and is not compatible with standard driver circuit boards.

Innovation Solution

A light source module with a light guide plate, a first light source, and multiple optical microstructures arranged in distinct zones on the bottom surface of the light guide plate, where the optical microstructures are configured to reflect light in different directions, creating varying brightness distributions across the light emitting surface when viewed from different angles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If the number of light sources is increased to improve visual experience and dynamic effect, then the image vividness is improved, but the production cost increases

Engineering Contradiction:

Improveimage vividnessVSAvoidproduction cost

Core Design Contradiction:

Illumination intensityVSEase of manufacture

Solution Approach 1:

The bottom surface of the light guide plate is divided into multiple zones (first zone, second zone, third zone) with different optical microstructure configurations. Each zone reflects light in different directions to create dynamic brightness variations, achieving vivid images without increasing the number of light sources.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different optical microstructures are arranged in different zones of the light guide plate bottom surface. The first optical microstructures have perpendicular bisectors passing through the light source, while the second optical microstructures have perpendicular bisectors not passing through the light source, creating locally differentiated light reflection characteristics for dynamic visual effects.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If addressable or programmable light sources are used to achieve dynamic effects, then the visual experience is improved, but the production cost increases and driver circuit boards cannot be directly applied

Engineering Contradiction:

Improvedynamic effectVSAvoidproduction cost and compatibility

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The optical microstructures themselves generate the dynamic effect through their geometric configuration and light reflection properties. The first optical microstructures with perpendicular bisectors passing through the light source create specific reflection patterns, while the second optical microstructures with perpendicular bisectors not passing through the light source create different patterns, achieving dynamic effects without external control systems.

Inventive Principle:

Principle #25Self-service

3Illumination intensity

If optical microstructures are arranged in multiple zones with different configurations, then the dynamic effect and visual experience are improved, but the device complexity increases

Engineering Contradiction:

Improvebrightness distributionVSAvoidoptical microstructure arrangement

Core Design Contradiction:

Illumination intensityVSDevice complexity

Solution Approach 1:

The bottom surface is segmented into distinct zones with different optical microstructure types. This segmentation allows each zone to be optimized for specific light reflection characteristics while maintaining overall system simplicity through modular zone-based design.

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

The solution achieves a dynamic effect of changing light emitting distribution with varying brightness across different zones, enhancing the visual experience by creating a three-dimensional effect without the need for increased light sources or addressable lighting, thus maintaining cost-effectiveness.

Implementation Method 1

optical microstructures are formed on the bottom surface of the light guide plate... the light emitted by the light source may be transmitted toward the light emitting surface of the light guide plate through reflection by the optical microstructure

Methodology Applied

Scientific EffectLight reflection: Reflection

Data Source

PatentUS20250076560A1Light source module

Publication Date: 2025.03.06 CHAMP VISION DISPLAY INC

AI summary

A light source module includes a light guide plate, a first light source, multiple first optical microstructures, and multiple second optical microstructures. The first light source is disposed on a side of a first light incident surface of the light guide plate. The first and second optical microstructures are disposed on a bottom surface of the light guide plate, and respectively located in a first and a second zone. A first light receiving surface of each first optical microstructure facing the first light source has a first edge connecting the bottom surface, and a perpendicular bisector of the first edge passes through the first light source. The first zone does not overlap the second zone. A second light receiving surface of each second optical microstructure has a second edge connecting the bottom surface, and a perpendicular bisector of the second edge does not pass through the first light source.