Color Conversion Partition Layout for Faster, Reliable Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in reducing manufacturing time and improving reliability, particularly in the integration of color conversion layers.
Innovation Solution
A display device design incorporating specific partition walls and spacers with hydrophobic and hydrophilic properties, along with color filters and transmission layers, to enhance manufacturing efficiency and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If color conversion layers are integrated into the display device structure, then light emission efficiency and color purity are improved, but manufacturing time and process complexity increase
Solution Approach 1:
The partition walls are formed with predetermined lyophobic and lyophilic surface properties before color conversion layer formation. This preliminary surface treatment enables subsequent color conversion materials to be deposited in specific patterns without requiring additional masking steps, thereby reducing manufacturing time while maintaining reliability
Solution Approach 2:
The partition walls with differential surface properties automatically guide the deposition and positioning of color conversion layers during the manufacturing process. The lyophobic regions repel certain materials while lyophilic regions attract them, enabling self-alignment and self-patterning of color conversion layers without external intervention, thus reducing both time and complexity
2Manufacturing precision
If partition walls with different surface properties are used, then color conversion layer positioning precision is improved, but device structure complexity increases
Solution Approach 1:
Different regions of the partition wall are engineered with distinct surface properties (lyophobic vs. lyophilic) to perform different functions. The lyophobic regions prevent unwanted material deposition while lyophilic regions promote controlled material adhesion, achieving high positioning precision through localized property variation rather than complex overall structure
Solution Approach 2:
The partition wall structure serves multiple functions simultaneously: it provides physical separation between different color conversion regions, guides material deposition through surface property differentiation, and maintains structural integrity. This multi-functionality reduces the need for additional separate components, thereby managing device complexity while achieving high precision
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 reduces manufacturing time and improves reliability by optimizing the integration of color conversion layers, enhancing light emission efficiency and purity.
Implementation Method 1
an upper surface of the first partition wall has lyophobic properties
Implementation Method 2
an upper surface of the second partition wall has lyophilic properties
Data Source
AI summary
A display device includes a first substrate; a transistor on the first substrate; a light emitting element electrically connected to the transistor; an encapsulation layer on the light emitting element; a second substrate overlapping the first substrate; a first partition wall between the encapsulation layer and the second substrate and having a first opening, a second opening, a third opening, and a fourth opening; a first color conversion layer within the first opening; a second color conversion layer within the second opening; a transmission layer within the third opening; a column spacer within the fourth opening; and a second partition wall within the fourth opening, wherein an upper surface of the first partition wall has lyophobic properties, and an upper surface of the second partition wall has lyophilic properties.