Color Conversion Layer Layout for High-Resolution Display Openings
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Solution Overview
Problem
Forming a color conversion layer in a display device's accommodating openings, especially in small areas required for high-resolution images, is challenging due to limited space.
Innovation Solution
The display device incorporates a substrate with multiple accommodating openings and a spacer area, where a scattering layer and a first and second color conversion layer are disposed in specific openings, with the scattering layer also acting as a spacer, allowing for effective formation even in small areas and improving manufacturing yield by simultaneous formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the area of the accommodating opening is reduced to display high-resolution images in a limited display area, then the image resolution is improved, but it becomes difficult to form the color conversion layer in the accommodating opening
Solution Approach 1:
The patent merges the spacer and scattering layer into a single integrated structure formed from the same material (photoresist). This combination allows both components to be formed simultaneously in the same accommodating opening, eliminating the need for separate formation processes and enabling color conversion layer formation even in reduced-area openings for high-resolution displays.
Solution Approach 2:
The photoresist material serves multiple functions: it forms both the spacer structure and the scattering layer within the same accommodating opening. This multi-functionality allows the single material to fulfill both spacing and light scattering requirements, facilitating color conversion layer formation in small areas while maintaining manufacturing simplicity.
2Manufacturing precision
If the spacer and scattering layer are formed separately, then each component can be optimized independently, but the manufacturing process becomes more complex and yield decreases
Solution Approach 1:
The spacer and scattering layer are combined into a single integrated structure formed from the same photoresist material in one process step. This merging eliminates multiple formation steps, reduces process complexity, and improves manufacturing yield while still allowing independent optimization of each component's properties through material composition control.
Solution Approach 2:
The photoresist material is applied and patterned in advance to simultaneously define both the spacer and scattering layer structures. This preliminary action establishes both components in a single step before subsequent color conversion layer formation, streamlining the manufacturing process and improving overall yield.
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
This configuration enables the display device to effectively display high-resolution images in limited areas with improved manufacturing efficiency by allowing the scattering layer and spacer to be formed simultaneously, enhancing light efficiency and reducing manufacturing defects.
Implementation Method 1
a scattering layer disposed in the third accommodating opening
Data Source
AI summary
A display device includes a substrate, a partition layer disposed on the substrate, and comprising a first accommodating opening, a second accommodating opening, a third accommodating opening, and a spacer area spaced apart from the first accommodating opening and the second accommodating opening, a first color conversion layer disposed in the first accommodating opening, a second color conversion layer disposed in the third accommodating opening, a scattering layer disposed in the third accommodating opening, and a spacer disposed on the spacer area of the partition layer. The spacer and the scattering layer comprises a same material.