Partitioned Wavelength Conversion Layout for High-Resolution Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in efficiently securing an area for wavelength conversion portions and improving light emission efficiency.
Innovation Solution
A display device design incorporating a partition wall structure layer with specific dimensions and materials, including a silicon-based first partition wall structure layer and insulating structure layer, to efficiently accommodate wavelength conversion portions and enhance light emission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional structure without partition walls is used, then the manufacturing process is simpler, but the area for wavelength conversion portions is reduced and resolution is lowered
Solution Approach 1:
The patent applies segmentation by dividing the color conversion layer into multiple wavelength conversion portions using partition wall structures. These partition walls physically separate different wavelength conversion materials (e.g., red, green, blue converters) into distinct regions, enabling precise spatial control of wavelength conversion functions and achieving high resolution color display.
Solution Approach 2:
The patent implements local quality by assigning different wavelength conversion materials to specific localized regions defined by the partition walls. Each wavelength conversion portion contains materials with specific optical properties tailored for its function, allowing different parts of the display to have optimized local characteristics for their respective color channels.
2Manufacturing precision
If wavelength conversion portions are closely arranged to increase area utilization, then resolution improves, but light emission efficiency decreases due to cross-contamination
Solution Approach 1:
The partition wall structures segment the color conversion layer into isolated wavelength conversion portions, preventing optical cross-contamination between adjacent regions. This segmentation allows closely arranged wavelength conversion portions to maintain high light emission efficiency by blocking stray light and ensuring each portion converts only its designated wavelength range.
Solution Approach 2:
The partition walls act as intermediary structures between adjacent wavelength conversion portions. These walls serve as optical barriers that mediate the interaction between neighboring regions, blocking unwanted light propagation and preventing cross-excitation of wavelength conversion materials, thereby maintaining high emission efficiency even at high densities.
3Loss of energy
If partition wall structures are added to separate wavelength conversion portions, then light emission efficiency improves, but manufacturing complexity increases
Solution Approach 1:
The patent merges the partition wall structure with the color conversion layer formation process. The partition walls and wavelength conversion portions are created in an integrated manner during the same manufacturing sequence, combining what could be separate fabrication steps into a unified process, thereby reducing overall manufacturing complexity despite the added structural elements.
Solution Approach 2:
The partition wall structures serve multiple functions simultaneously: they provide mechanical separation of wavelength conversion portions, act as optical barriers to prevent cross-contamination, and define the spatial boundaries for material deposition. This multi-functionality reduces the need for additional separate components, offsetting the increased structural complexity with functional consolidation.
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 design achieves high resolution and improved light emission efficiency by optimizing the arrangement and materials of wavelength conversion portions within the display device.
Implementation Method 1
The color conversion part may include an insulating structure layer, a first partition wall structure layer, and a first wavelength conversion portion, the first partition wall structure layer may include first walls, and may be disposed between the insulating structure layer and the display element part
Implementation Method 2
a color conversion part disposed on the display element part and changing a wavelength of light emitted from the light emitting element
Data Source
AI summary
A display device may include a display element part disposed on a substrate and including a light emitting element, and a color conversion part disposed on the display element part and changing a wavelength of light emitted from the light emitting element. The color conversion part may include an insulating structure layer, a first partition wall structure layer, and a first wavelength conversion portion, the first partition wall structure layer may include first walls, and may be disposed between the insulating structure layer and the display element part, the first wavelength conversion portion may be disposed in a space defined by the first walls, and the first partition wall structure layer may include a silicon-based material.