Color Converting Substrate Light Blocking Regions Inkjet Alignment
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Solution Overview
Problem
Existing display devices face challenges in improving the precision of ink distribution during inkjet printing processes and enhancing display quality, particularly in the arrangement and alignment of color filters and wavelength converting patterns.
Innovation Solution
A color converting substrate with specific light transmitting and blocking regions, including multiple color filters and wavelength converting patterns, is designed to improve inkjet printing precision and display quality by optimizing the arrangement of these elements on a base part with defined regions and patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple color filters and wavelength converting patterns are arranged closely to improve display quality, then color reproduction is enhanced, but inkjet printing precision deteriorates due to difficulty in maintaining accurate alignment
Solution Approach 1:
The substrate is divided into distinct light transmitting regions and light blocking regions. The light blocking regions serve as predefined alignment references that simplify the positioning of color filters and wavelength converting patterns during inkjet printing, thereby maintaining manufacturing precision while managing device complexity.
Solution Approach 2:
The light blocking regions are formed in advance on the substrate before the color filters and wavelength converting patterns are applied. These pre-formed regions provide fixed reference points that guide the subsequent inkjet printing process, ensuring accurate alignment without requiring complex real-time positioning systems.
2Measurement precision
If light blocking regions are added to improve inkjet printing precision, then alignment accuracy is enhanced, but device complexity increases due to additional structural elements
Solution Approach 1:
The light blocking regions serve multiple functions: they act as alignment references for inkjet printing, define the boundaries of light transmitting regions, and prevent color mixing between adjacent pixels. By combining multiple functions into a single structural element, the patent improves measurement precision without proportionally increasing device complexity.
3Manufacturing precision
If color filters are positioned to overlap with light transmitting regions for improved color reproduction, then display quality is enhanced, but the risk of color mixing between adjacent regions increases
Solution Approach 1:
The light blocking regions act as intermediary elements positioned between adjacent light transmitting regions. These intermediary structures prevent light from one region from leaking into adjacent regions, thereby eliminating color mixing while allowing color filters to be positioned directly over light transmitting regions for optimal color reproduction.
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 enhances the precision of ink distribution during inkjet printing and improves display quality by simplifying the inkjet printing process and ensuring accurate alignment of color filters and wavelength converting patterns, leading to improved color reproduction and reduced color mixing.
Implementation Method 1
a first wavelength converting pattern positioned on the third light transmitting region
Data Source
AI summary
A color converting substrate includes: a base part having, defined therein a first light transmitting region, a second light transmitting region spaced apart from the first light transmitting region in a first direction, and a first light blocking region between the first light transmitting region and the second light transmitting region; a first color filter positioned on one surface of the base part and overlapping the first light transmitting region; a second color filter positioned on the one surface of the base part and overlapping the second light transmitting region; a light blocking pattern overlapping the first light blocking region and positioned on the one surface of the base part; and a light transmitting pattern positioned on the first color filter, the second color filter, and the light blocking pattern, wherein the first color filter and the second color filter include a coloring material of a first color.