Trichromatic Illuminating Module Red Chip Ratio
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Solution Overview
Problem
Current LED-based white light sources using blue chips and yellow fluorescent powders struggle to achieve color saturation due to insufficient red light contribution, which limits color gamut in consumer electronics.
Innovation Solution
A trichromatic illuminating module with a higher ratio of red chips to green and blue chips, specifically 3:1:1, is employed on a circuit board, with each illuminating unit comprising multiple red, green, and blue chips connected in a specific configuration to enhance red light emission and increase color saturation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If blue chips and yellow fluorescent powders are used to obtain white light in LEDs, then the structure is simple and manufacturing is easy, but color saturation cannot be achieved
Solution Approach 1:
The patent divides the white light generation into three separate color channels (red, green, blue) using three distinct LED chips. Each chip emits its primary color, and through additive color mixing, they produce white light with enhanced color saturation. This segmentation allows independent optimization of each color channel's luminous characteristics.
Solution Approach 2:
The patent employs a composite structure combining three different types of LED chips (red, green, blue) with distinct semiconductor materials and emission characteristics. This composite approach integrates multiple light sources with complementary spectral properties to achieve superior color rendering and saturation compared to single-chip solutions.
2Illumination intensity
If the amount of red chips is increased to improve color saturation, then color saturation increases, but device complexity increases
Solution Approach 1:
The patent merges multiple red, green, and blue LED chips into integrated illuminating units that are collectively controlled by a single driving circuit. The chips within each unit share common electrical connections and control signals, reducing the overall system complexity despite the increased number of individual light-emitting elements.
Solution Approach 2:
The illuminating units are designed with universal structures that can emit multiple colors simultaneously. Each unit functions as a multi-color light source by combining the emission from its constituent red, green, and blue chips, eliminating the need for separate single-color light sources and simplifying the overall system architecture.
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 increased ratio of red light results in higher color saturation of white light emitted, effectively addressing the limitations of existing technologies by optimizing the trichromatic illuminating module, backlight module, and liquid crystal display devices.
Implementation Method 1
Each illuminating unit comprises a red chip, a green chip and a blue chip. A voltage is applied to the circuit board for illuminating the red chip, the green chip and the blue chip.
Implementation Method 2
A voltage is applied to the circuit board for illuminating the red chip, the green chip and the blue chip
Data Source
AI summary
The disclosure provides a trichromatic illuminating module, comprising a circuit board and multiple illuminating units disposed on the circuit board. Each illuminating unit comprises a red chip, a green chip and a blue chip disposed on the circuit board, and intervals are set therebetween, a voltage is applied to the circuit board for illuminating the red chip, the green chip and the blue chip. There are more red chips than green chips and blue chips in each illuminating unit. Thus, the ratio of red light is increased. Since red light has the highest color gamut in the three primary colors, which causes it difficult for the saturation of color gamut. However, the ratio of red light of the disclosure is increased, such that the color saturation of white light emitted from the trichromatic illuminating module is increased. The disclosure also provides a backlight module and a liquid crystal display device.