Polarized Light Emitting Element for Rotation-Independent Assembly
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Solution Overview
Problem
Existing display devices face challenges in assembly rate, manufacturing processes, electrode connectivity, and luminance, particularly in light emitting diodes (LEDs), which are prone to failure from moisture intrusion and have limited viewing angles.
Innovation Solution
A light emitting element with a specific structure comprising a first semiconductor layer, light emitting layer, second semiconductor layer, electrodes, insulating layers, and a polarization inducing layer, allowing for rotational symmetry of electrodes and improved assembly processes, enhanced luminance, and reduced manufacturing steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional LED structure is used, then manufacturing is simpler, but assembly rate is poor and connectivity is direction-dependent
Solution Approach 1:
The patent applies asymmetry by designing the polarization inducing layer with a specific directional orientation that creates asymmetric light extraction properties. This asymmetric structure enables the LED to maintain consistent electrical connectivity regardless of rotation direction while improving assembly rate, as the asymmetric design allows for direction-independent electrode alignment during the assembly process
2Productivity
If manufacturing processes are reduced, then productivity increases, but manufacturing precision may be compromised
Solution Approach 1:
The patent applies preliminary action by pre-configuring the polarization inducing layer and electrode structure during the manufacturing process to enable automatic alignment during assembly. This preliminary structuring allows the LED to be assembled without complex alignment procedures, reducing manufacturing steps while maintaining high assembly precision through the pre-designed geometric features
3Adaptability or versatility
If electrode connectivity is made rotation-independent, then adaptability improves, but device complexity increases
Solution Approach 1:
The patent applies universality by designing the electrode structure to serve multiple functions simultaneously: it provides electrical connection, enables rotation-independent assembly, and maintains optical performance. The universal design allows the same electrode configuration to work effectively regardless of the LED's rotational orientation, eliminating the need for separate alignment mechanisms
4Illumination intensity
If luminance is increased, then display quality improves, but energy consumption increases
Solution Approach 1:
The patent applies parameter changes by modifying the optical properties of the polarization inducing layer and semiconductor structure to enhance light extraction efficiency. By changing the refractive index parameters, layer thickness, and polarization characteristics, the LED achieves higher luminance output from the same energy input, improving display quality without proportionally increasing energy consumption
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 stable connectivity and improved assembly rates, reduces manufacturing costs, and enhances luminance and light extraction efficiency, minimizing actuation failures and increasing viewing angle luminance.
Implementation Method 1
a polarization inducing layer disposed on the first insulating layer
Data Source
AI summary
Discussed is a light emitting element. The light emitting element includes a first semiconductor layer, a light emitting layer disposed on the first semiconductor layer, a second semiconductor layer disposed on the light emitting layer, a first electrode disposed on the first semiconductor layer, a second electrode disposed on the second semiconductor layer, a first insulating layer disposed on the first electrode and the second electrode, and a polarization inducing layer disposed on the first insulating layer.