LED Filament Assembly Multi-Color Segmentation
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Solution Overview
Problem
Conventional LED light sources require optical components for satisfactory illuminance and large illumination areas, leading to higher power consumption and limited color variability, with monochromatic filaments unable to achieve multi-color and multi-color temperature adjustments.
Innovation Solution
An LED filament assembly with multiple groups of LED chips emitting different colors (red, green, blue, and white) connected in series and parallel, each group electrically connected to electrodes to provide distinct power and luminance, allowing for multi-color and multi-color temperature adjustments without additional optical components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If optical components such as lenses are added to LED light sources to provide satisfactory illuminance and large illumination area, then the illumination performance is improved, but the power consumption increases and the lighting effect is degraded
Solution Approach 1:
The patent segments the LED light source into multiple groups of LED chips (first group, second group, third group, and optionally fourth group) with different color emissions, arranged in series along the filament. This segmentation allows each group to contribute to different aspects of illumination, achieving comprehensive lighting coverage without requiring external optical components like lenses, thereby avoiding the associated power consumption and lighting effect degradation.
2Device complexity
If monochromatic LED filaments are used, then the structure is simple, but the color variability is limited and multi-color adjustment cannot be realized
Solution Approach 1:
The patent implements dynamic color control by arranging multiple groups of LED chips with different color emissions (red, green, blue, and white) in series along the filament. Each group can be independently controlled through pulse width modulation (PWM) or current adjustment, enabling real-time dynamic adjustment of color temperature and color mixing ratios. This dynamic approach allows the system to transition between monochromatic and multi-color modes, providing versatile color variability while maintaining reasonable structural simplicity.
Solution Approach 2:
The patent changes the electrical parameters (current, voltage, pulse width) of different LED chip groups to achieve color temperature adjustment and color mixing. By varying the driving parameters of each color group independently, the system can produce a wide range of colors and color temperatures, transforming the fixed-color LED filament into a dynamically adjustable multi-color light source without significantly complicating the overall structure.
3Adaptability or versatility
If multiple groups of LED chips with different colors are added to achieve multi-color solution, then the color variability and multi-color temperature adjustment are improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple groups of LED chips with different color emissions (red, green, blue, and white) into a single integrated filament structure. All groups are arranged in series along the same support frame, sharing common electrical connections and mounting structure. This merging approach allows multi-color capability to be achieved while minimizing structural complexity, as the different color groups share the same physical support and electrical bus structure rather than requiring separate assemblies.
Solution Approach 2:
The patent designs the LED filament with multi-functional capability by incorporating LED chip groups that can emit different colors (red, green, blue, white). This universal design allows the same filament structure to serve multiple functions: it can operate in monochromatic mode for simple applications, or switch to multi-color mode for applications requiring color temperature adjustment and color mixing. The series arrangement of different color groups enables the filament to adapt to various lighting requirements without requiring fundamentally different structural designs.
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
Enables efficient 360° full-angle illumination with adjustable colors and luminance, reducing power consumption and enhancing lighting performance by eliminating the need for optical components.
Implementation Method 1
a first group of LED chips capable of emitting a first color, a second group of LED chips capable of emitting a second color different from the first color, and a third group of LED chips capable of emitting a third color different from the first color and the second color
Data Source
AI summary
An LED filament assembly includes a frame, a first electrode disposed on a first end of the frame, and a second electrode disposed on a second end of the frame. The LED filament assembly includes a first group of LED chips capable of emitting a first color, a second group of LED chips capable of emitting a second color, and a third group of LED chips capable of emitting a third color. The first group of LED chips is disposed on the frame along a longitudinal axis, connected in series, and electrically connected to the first electrode and the second electrode. Similarly, the second and the third group of LED chips are also disposed on the frame along the longitudinal axis, connected in series, and electrically connected to the first electrode and the second electrode. A lamp including such an LED filament assembly is also disclosed.