Display Partition Wall Structure for Precise Wavelength Conversion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current display devices face limitations in controlling the thickness and height of partition walls and improving the design freedom of wavelength conversion layers, which affects the performance and efficiency of light emission.
Innovation Solution
A display device is fabricated with a partition wall made of organic insulating material, where the wavelength conversion layers are formed through etching, allowing for precise control of thickness and height, and including reflective layers, lenses, and color filters to enhance light emission and color reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If partition walls are formed using conventional materials and methods, then structural support is provided, but the thickness and height control precision is insufficient
Solution Approach 1:
The patent changes the material parameter from conventional inorganic materials to organic insulating materials for partition walls, enabling precise control of thickness and height through solution processing and spin coating methods. This material parameter change allows for better dimensional control while simplifying the fabrication process.
Solution Approach 2:
The patent replaces mechanical/physical formation methods with chemical solution processing methods. The partition walls are formed through solution deposition and controlled drying processes rather than traditional mechanical deposition, enabling precise thickness control through solution concentration and processing parameters.
2Adaptability or versatility
If wavelength conversion layers are formed using conventional methods, then light conversion is achieved, but the design freedom and structural optimization are limited
Solution Approach 1:
The patent segments the wavelength conversion layer formation into multiple independent steps: forming the organic insulating material layer first, then creating spaces through etching, and finally filling these spaces with wavelength conversion materials. This segmentation allows independent optimization of each layer's structure and composition, enhancing design freedom while maintaining manufacturing precision.
Solution Approach 2:
The patent performs preliminary actions by forming the organic insulating material layer and creating spaces before introducing the wavelength conversion materials. This preliminary structuring enables precise control over the final wavelength conversion layer's position, shape, and thickness, while allowing flexible design of the conversion layer itself.
3Reliability
If partition walls are formed with fixed conventional structures, then manufacturing is simple, but the optimization of light emission performance is restricted
Solution Approach 1:
The patent uses composite material structures where organic insulating materials form the partition walls and wavelength conversion layers are filled within these structures. This composite approach combines the advantages of organic materials (precise thickness control, flexibility) with functional wavelength conversion materials, optimizing light emission efficiency while managing structural complexity through systematic design.
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 improved light emission efficiency and color accuracy by controlling the thickness and height of partition walls and wavelength conversion layers, enhancing the design flexibility and performance of display devices.
Implementation Method 1
forming the partition wall and spaces for forming wavelength conversion layers by etching the organic insulating material layer on the light-emitting elements
Implementation Method 2
the wavelength conversion layers include a light-transmitting pattern in the first emission area and includes a first base resin and a first scatterer configured to scatter light
Implementation Method 3
a first base resin and a first scatterer configured to scatter light
Implementation Method 4
lenses on the light-emitting elements in the spaces to condense light
Implementation Method 5
first reflective layers on sides of each of the light-emitting elements and second reflective layers on sides of each of the wavelength conversion layers
Data Source
AI summary
The present disclosure may provide a display device and method of fabricating the same. According to one or more embodiments, a display device includes a first substrate including pixel circuit units, a plurality of light-emitting elements on the first substrate, a partition wall filling gaps between the light-emitting elements and providing spaces in emission areas, on the light-emitting elements and wavelength conversion layers in the spaces.