LED Display Units with Separating Structures for High Density
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There are limitations in fabricating LEDs to desired shapes with high light efficiency and improving manufacturing characteristics such as precise patterning in display apparatuses using single LEDs.
Innovation Solution
A light-emitting diode structure comprising multiple units with a stacked structure of n-type and p-type semiconductor layers, a photo-active layer, and electrodes, along with a separating unit to enhance light emission and manufacturing convenience, is integrated into a display apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple LED units are arranged closely to improve display density, then productivity and area utilization are improved, but light interference between adjacent LEDs increases and manufacturing precision becomes more difficult
Solution Approach 1:
A separating unit is introduced between adjacent LED units to prevent light interference. This intermediary structure allows the LEDs to be arranged closely for high display density while maintaining manufacturing feasibility by providing a clear boundary for patterning processes.
Solution Approach 2:
The display structure is segmented into discrete LED units with separating units between them. This segmentation enables independent control and fabrication of each LED unit while maintaining close proximity for high density, resolving the conflict between productivity and manufacturing precision.
2Area of stationary object
If LED size is reduced to improve display resolution, then area utilization is improved, but light efficiency and fabrication capability deteriorate
Solution Approach 1:
Multiple small LED units are merged into a coordinated array with separating units, where each unit maintains optimal size for light efficiency while the collective arrangement achieves high display resolution. The separating units enable this merging without compromising individual LED performance.
3Illumination intensity
If separating units are added between LED units to reduce light interference, then light characteristics are improved, but device complexity increases
Solution Approach 1:
The separating units are extracted as distinct, simple elements between LED units. This extraction approach provides an effective solution for light isolation without requiring complex integration, thereby improving light characteristics while minimizing increases in device complexity.
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 improves light characteristics and image quality while simplifying manufacturing by allowing efficient light emission from multiple side surfaces and reducing interference between adjacent LED units.
Implementation Method 1
a plurality of light-emitting diode units, and a separating unit, wherein at least one of the plurality of light-emitting diode units includes a stacked structure including an n-type semiconductor layer, a p-type semiconductor layer, and a photo-active layer arranged between the n-type semiconductor layer and the p-type semiconductor layer
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A light-emitting diode structure (100) includes light-emitting diode units (LU1, LU2) and a separation unit (SU), where one of the light-emitting diode units includes a stacked structure including an n-type semiconductor layer (NS1), a p-type semiconductor layer (PS1), and a photoactive layer (LL1) arranged between the n-type semiconductor layer and the p-type semiconductor layer, a first electrode (BE1), which faces a surface of the stacked structure and is electrically connected to the p-type semiconductor layer, and a second electrode (TE1), which faces the surface of the stacked structure opposite to the surface faced by the first electrode and is electrically connected to the n-type semiconductor layer, and the separation unit (SU) is arranged between at least two adjacent light-emitting diode units among the light-emitting diode units and separates the two light-emitting diode units from each other.