Multiplexed Segmented Lighting Lamina for LED Color Control
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Solution Overview
Problem
Existing LED lighting systems using integrated circuits (ICs) are limited by the number of current regulators, which restricts the number of colors or correlated color temperatures (CCTs) that can be controlled.
Innovation Solution
The proposed solution involves a lighting circuit architecture where a group of LEDs is mounted on a lamina with a flexible or rigid substrate, and an integrated circuit configured to receive input from a high-voltage supply, data output, and reference voltage, allowing for independent control of multiple LEDs and CCTs without being limited by the number of current regulators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If integrated circuits with fixed current regulators are used, then the system structure is simple, but the number of colors or CCTs that can be controlled is limited
Solution Approach 1:
The patent segments the lighting system into multiple independent lamina segments, each capable of being controlled individually. Each segment contains LEDs of different colors or CCTs that can be independently regulated, allowing the system to control a greater number of colors and CCTs without requiring a single complex IC with numerous current regulators.
Solution Approach 2:
The patent transitions from a single-plane IC architecture to a three-dimensional stacked lamina structure. Multiple lamina segments are stacked vertically, with each segment containing LEDs and control circuits. This vertical stacking enables control of multiple colors and CCTs by adding segments rather than increasing the complexity of individual ICs.
2Adaptability or versatility
If multiple current regulators are added to control more colors, then the number of colors or CCTs increases, but the IC complexity increases
Solution Approach 1:
Instead of adding more current regulators to a single IC, the patent divides the system into multiple lamina segments, each with its own simplified control circuitry. Each segment can be controlled independently or in combination with others, achieving multi-color control without increasing individual IC complexity.
Solution Approach 2:
The patent employs a nested structure where multiple lamina segments are stacked together, with each segment containing complete LED arrays and control circuits. The segments are electrically connected in a cascading manner, allowing a single control signal to manage multiple segments with different color compositions without requiring each segment to have complex individual control.
3Adaptability or versatility
If more current regulators are used, then more colors or CCTs can be controlled, but the loss of energy increases
Solution Approach 1:
The patent divides the lighting system into separate lamina segments that can be independently controlled and powered. This allows the system to activate only the segments needed for a particular lighting scenario, reducing overall energy consumption compared to a single large system with numerous always-active current regulators.
Solution Approach 2:
The patent implements dynamic control where lamina segments can be selectively activated or deactivated based on lighting requirements. The system can adjust which segments are powered and at what intensity, enabling energy-efficient operation by matching the active segments to the actual lighting needs rather than continuously powering all color channels.
Data Source
AI summary
Apparatus and methods for providing LED lighting on light tape and light sheet. A controller may provide lighting control data to one or more ICs on a segment of tape or sheet. The lighting control data may include a data packet. The data packet may include an address. The address may correspond to one or more of the ICs. The address may correspond to one or more LEDs on the segment. The address may correspond to one or more LEDs on a light tape. The address may correspond to one or more LEDs on a light sheet. The LEDs corresponding to the address may be controlled by a current regulator or regulators on a single IC. The LEDs corresponding to the address may be controlled by current regulators on different ICs.