Orthogonal Electrode Layout for Independently Controlled Light Emitters
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing light emitting devices face challenges in efficiently operating multiple light emitters independently while minimizing defects and improving light efficiency and reliability.
Innovation Solution
A light emitting device design featuring a substrate with multiple light emitters, electrodes intersecting in specific configurations, and a cover layer to protect and guide light emission, allowing individual emitter control and reducing light absorption and detachment risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple light emitters are disposed on a substrate to increase light output, then the light efficiency and productivity are improved, but the complexity of electrode arrangement and individual control becomes difficult to achieve
Solution Approach 1:
The electrode structure is segmented into first electrodes extending in a first direction and second electrodes extending in a second direction, allowing independent control of multiple light emitters through orthogonal electrode connections
Solution Approach 2:
The electrode arrangement transitions from a single-direction layout to a two-dimensional orthogonal grid system, enabling individual emitter control through row and column electrode intersections
2Ease of operation
If electrodes are arranged to intersect light emitters for individual control, then the ease of operation for independent emitter control is improved, but light absorption by electrodes increases reducing light efficiency
Solution Approach 1:
The electrode dimensions are locally optimized to be 70% or less of the light emitter dimensions in perpendicular directions, minimizing electrode area that absorbs light while maintaining electrical connection functionality
Solution Approach 2:
The electrode coverage is intentionally limited to partial overlap with light emitters, providing sufficient electrical connection while reducing excessive light absorption by minimizing electrode presence in the light path
3Area of stationary object
If light emitters are closely spaced to increase density, then the area utilization and productivity are improved, but the reliability and risk of defects increase
Solution Approach 1:
The electrode system segments the closely spaced light emitters into individually addressable units through orthogonal first and second electrodes, enabling precise control that reduces operational defects even at high densities
Solution Approach 2:
The orthogonal electrode structure acts as an intermediary control system that manages the complexity of closely spaced emitters, providing reliable individual control through row and column electrode intersections
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 independent operation of light emitters with improved light extraction efficiency, reduced defects, and enhanced reliability by minimizing light absorption and protecting the emitters from the environment.
Implementation Method 1
The light emitting diode converts electric signals into light forms, such as infrared, visible light, and ultraviolet light, by using characteristics of compound semiconductors
Data Source
AI summary
In accordance with one aspect of the present disclosure, there may be provided a light emitting device, including: a substrate; a plurality of light emitters disposed on an upper surface of the substrate to emit light; a first electrode disposed between the substrate and the plurality of light emitters and electrically connected to the plurality of light emitters; and a second electrode spaced apart from the substrate and electrically connected to the plurality of light emitters, wherein the first electrode and the second electrode are spaced apart from each other in an up and down direction by at least one of the plurality of light emitters, and extend while intersecting in the at least one light emitter when viewed from above.