Light Emitting Device Primer Layer Chromaticity Control
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Solution Overview
Problem
Current light emitting devices face challenges in achieving optimal chromaticity coordinate distribution for various applications, particularly in manufacturing high-resolution full color displays and as white light sources, where the brightness, luminous efficiency, and device lifetime are critical, and existing technologies struggle to adjust chromaticity effectively.
Innovation Solution
A light emitting device is designed with a primer layer containing a metal material on a resin layer, allowing for adjustable chromaticity coordinate distribution by varying the thickness of the primer layer, which shifts the chromaticity coordinates of the emitted light to align with target regions, improving utilization yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a light emitting diode is used to convert electricity into light, then light of various colors can be emitted, but the chromaticity coordinate distribution cannot be precisely adjusted to align with target regions
Solution Approach 1:
The device is segmented into multiple functional layers: a light emitting diode layer for light generation, a resin layer for light transmission, and a primer layer containing metal materials for chromaticity adjustment. This segmentation allows independent optimization of each layer's function, enabling precise chromaticity control without complicating the overall device structure.
Solution Approach 2:
The primer layer containing metal materials serves as an intermediary between the light emitting diode and the external environment. This intermediate layer modifies the chromaticity coordinates of emitted light by interacting with the light photons, enabling precise adjustment of color distribution without requiring changes to the light emitting diode itself.
2Manufacturing precision
If the primer layer thickness is varied to adjust chromaticity coordinates, then chromaticity coordinate distribution can be precisely controlled, but the manufacturing process becomes more complex
Solution Approach 1:
The chromaticity coordinates are adjusted by changing a single parameter - the thickness of the primer layer containing metal materials. By controlling the primer layer thickness within a range of 1-10 micrometers, precise chromaticity adjustment is achieved. This parameter-based control simplifies the manufacturing process compared to modifying multiple structural parameters.
3Reliability
If a primer layer containing metal material is added to adjust chromaticity, then light distribution can be aligned with target regions, but the device structure becomes more complex
Solution Approach 1:
The primer layer containing metal materials is applied locally on the resin layer, specifically in regions where chromaticity adjustment is needed. This localized application allows precise control of light distribution in specific areas without requiring complex overall structural changes. The metal materials in the primer layer are strategically positioned to achieve the desired chromaticity coordinate distribution.
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 precise adjustment of chromaticity coordinates, enhancing the utilization yield of light emitting diodes by aligning the light distribution within target regions, thereby improving the brightness and efficiency of light emitting devices for diverse applications.
Implementation Method 1
a primer layer which shifts a chromaticity coordinate distribution of light emitted from the light emitting diode
Implementation Method 2
a primer layer containing a metal material on the resin layer
Data Source
AI summary
Provided is a light emitting device. The light emitting device comprises a body, a light emitting diode on the body, a resin layer on the light emitting diode, and a primer layer containing a metal material on the resin layer.