Solid State Light Emitter Devices with Independent Zones
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current solid state light emitters, such as LEDs, face challenges in providing high-quality white light and efficient, cost-effective solutions with improved color rendering and ease of manufacture, particularly in reducing material usage while maintaining brightness and power efficiency.
Innovation Solution
The development of light emitter devices with multiple independent and distinct zones on a submount, each zone having customizable characteristics like peak emission, color temperature, and phosphor content, allowing for flexible lighting applications and improved color mixing and uniformity, using electrically independent contacts and traces for controlled light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple independent light emitter zones are implemented on a submount, then color quality and uniformity are improved, but device complexity increases
Solution Approach 1:
The light emitter device is divided into multiple independent light emitter zones (first light emitter zone, second light emitter zone) on a single submount. Each zone has its own electrical contacts and can be independently controlled to emit different colors or intensities of light. This segmentation allows for improved color quality and uniformity by combining different wavelength emissions while maintaining manageable device architecture through modular zone design.
2Ease of manufacture
If fewer raw materials are used to reduce cost, then manufacturing cost is reduced, but brightness and efficiency may be compromised
Solution Approach 1:
Multiple light emitter zones emitting different wavelengths (e.g., blue LED chips with yellow phosphor, red phosphor) are merged on a single submount to create a multi-color light source. This combining approach achieves full-spectrum white light emission that improves brightness and color rendering while using cost-effective LED chip and phosphor materials. The integrated design reduces the need for separate light sources and optical components, lowering overall manufacturing cost.
3Adaptability or versatility
If multiple independent contacts and zones are implemented, then color rendering and customization are improved, but ease of manufacture decreases
Solution Approach 1:
The submount structure is designed with universal electrical contacts and trace configurations that can accommodate different combinations of light emitter zones. The same submount design can support various zone arrangements (different numbers, positions, and types of LEDs and phosphors) to achieve different color temperatures and rendering characteristics. This multi-functional design approach improves color rendering and customization options while maintaining manufacturing simplicity through standardized submount and contact patterns.
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 approach enables the creation of light emitter devices with enhanced color quality, uniformity, and efficiency, allowing for customizable lighting solutions with reduced material usage and manufacturing complexity, while maintaining or improving brightness and power efficiency.
Implementation Method 1
Solid state light emitters, such as light emitting diodes (LEDs) or LED chips, convert electrical energy into light
Implementation Method 2
Each zone can have customizable characteristics like peak emission, color temperature, and phosphor content
Data Source
AI summary
Solid state light emitter devices and methods are provided. A solid state light emitter device can include a submount having an upper surface and a bottom surface. At least first pair and a second pair of electrically conductive contacts can be disposed on the bottom surface of the submount. The first pair of contacts can be electrically independent from the second pair of contacts. The device can further include multiple light emitters provided on the upper surface of the submount. The multiple light emitters can be configured into at least a first light emitter zone that is electrically independent from a second light emitter zone upon electrical communication to a respective pair of contacts.