Multi-segment LED Components with Integrated Circuit Control
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Solution Overview
Problem
Existing LED lighting technologies lack a modular and efficient method for constructing LED lighting products that allows for granular control over light output and color rendition, particularly in achieving high color rendering index (CRI) and reducing perceptible flicker.
Innovation Solution
The development of multi-segment LED components with integrated circuit packages and terminals that enable separate biasing and control of LED segments using an AC voltage, allowing for modular construction and flexible lighting configurations by coupling segments in series or parallel, along with an LED lighting driver circuit that includes current diversion circuits for selective activation of LED segments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LED segments are controlled as a single unit, then device complexity is reduced, but light output flexibility and color rendering are limited
Solution Approach 1:
The LED lighting system is divided into multiple independently controllable LED segments, each with its own control circuitry. This segmentation allows different portions of the LED array to be controlled separately, enabling flexible light output adjustment and improved color rendering by selectively activating specific segments with different characteristics.
2Illumination intensity
If all LED segments are activated simultaneously, then light output is maximized, but perceptible flicker increases
Solution Approach 1:
The system employs phased activation of LED segments using alternating current, where segments are turned on and off in sequential phases rather than all simultaneously. This periodic action with controlled timing reduces flicker perception while maintaining overall light output, as the human eye integrates the light from sequentially activated segments.
3Manufacturing precision
If LED segments are separately controlled, then color rendering index is improved, but control circuit complexity increases
Solution Approach 1:
Multiple control functions for different LED segments are integrated into a single integrated circuit package. This merging of control circuits allows separate control of multiple LED segments for improved color rendering while consolidating the complexity into one unified control unit, simplifying the overall system architecture.
4Adaptability or versatility
If modular construction is implemented, then adaptability is improved, but manufacturing complexity increases
Solution Approach 1:
The integrated circuit package is designed as a universal modular unit that can control multiple LED segments with different configurations. This multi-functional design allows the same modular component to be used in various lighting applications and configurations, improving adaptability while maintaining ease of manufacture through standardization.
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 more precise control over light output, reduces flicker, and enhances color rendition by allowing for the use of LEDs with varying colors, thereby improving the Color Rendering Index (CRI) and providing a more efficient and customizable LED lighting solution.
Implementation Method 1
Typically, a solid state light emitting device generates light through the recombination of electronic carriers, i.e., electrons and holes, in a light emitting layer or region
Data Source
AI summary
An integrated circuit component can include an integrated circuit package and a plurality of terminals provided on the exterior of the integrated circuit package. The terminals are configured to provide electrical connectivity to an interior of the integrated circuit package and a plurality of light emitting diode (LED) segments that includes an LED string in the interior of the package, coupled to the plurality of terminals.