Light Emitting Apparatus Complementary Color Mixing
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Solution Overview
Problem
Current light emitting devices struggle to efficiently achieve target chromaticity, leading to suboptimal use efficiency, especially when chromaticity distributions fall outside desired areas, limiting their application in high-image-quality displays and illumination.
Innovation Solution
A light emitting apparatus comprising a combination of first and second light emitting devices that emit complementary colors, allowing for the mixing of lights to achieve target chromaticity, with at least one device having a chromaticity distribution outside the target area, thereby improving use efficiency by up to 80%.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If light emitting devices with chromaticity outside the target area are discarded, then manufacturing precision of target chromaticity is improved, but loss of substance increases due to wasted devices
Solution Approach 1:
The patent converts the harmful factor of chromaticity deviation into a beneficial resource by pairing light emitting devices with complementary color deviations. Devices that would normally be discarded due to falling outside the target chromaticity area are instead utilized in combination with other devices whose chromaticity deviations complement each other, thereby achieving the target chromaticity while improving substance utilization efficiency
Solution Approach 2:
The patent merges light emitting devices with different chromaticity characteristics (specifically those with complementary color deviations) to achieve the desired target chromaticity. By combining devices that individually fall outside the target area but have complementary deviations, the system achieves precise chromaticity control while utilizing all available devices
2Manufacturing precision
If only light emitting devices with chromaticity within the target area are used, then manufacturing precision is improved, but productivity decreases due to device selection limitations
Solution Approach 1:
The patent changes the selection criterion from requiring individual devices to have chromaticity within the target area to selecting devices based on their complementary color deviation relationships. This parameter change in the selection strategy allows devices with broader chromaticity ranges to be utilized effectively, thereby improving productivity without sacrificing chromaticity precision
3Productivity
If light emitting devices with complementary color deviations are combined, then use efficiency is improved by utilizing devices outside target area, but device complexity increases due to pairing requirements
Solution Approach 1:
The patent utilizes color deviation characteristics of light emitting devices to create complementary pairs. By categorizing devices according to their color deviation types and pairing those with complementary deviations, the system achieves efficient device utilization while managing complexity through systematic color-based classification and matching
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 solution enables the realization of target chromaticity by combining light emitting devices with complementary color relations, enhancing the use efficiency of light emitting devices and expanding their application in displays and illumination systems.
Implementation Method 1
a first light emitting device which emits a light of a target color tinged with a first color, and a second light emitting device which emits a light of the target color tinged with a second color complementary to the first color
Implementation Method 2
capable of representing a target chromaticity by mixing lights emitted from light emitting devices having chromaticity out of the target chromaticity
Data Source
AI summary
Disclosed are a light emitting apparatus and a display apparatus having the same. The light emitting apparatus comprises a first light emitting device which emits a light of a target color tinged with a first color, and a second light emitting device which emits a light of the target color tinged with a second color complementary to the first color with respect to the target color.