Inkjet Print Path Determination for High-Resolution Displays
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Solution Overview
Problem
The existing inkjet printing processes for high-resolution display devices require multiple print paths to accurately eject ink onto densely packed pixels, leading to increased manufacturing time and reduced productivity due to inefficient ink distribution.
Innovation Solution
A method for determining the optimal print path by receiving substrate and head information, generating a virtual substrate, selecting high-priority print paths, and simulating the printing process to satisfy target conditions with the smallest number of paths, prioritizing nozzles based on grade and overlap, and adjusting the print path selection to minimize unnecessary printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple print paths are used to accurately eject ink onto densely packed pixels, then manufacturing precision is improved, but manufacturing time increases and productivity decreases
Solution Approach 1:
The system performs preliminary simulation of the printing process using a virtual substrate and virtual nozzles before actual manufacturing. This simulation predicts the number of times each pixel will be printed and identifies optimal print paths in advance, allowing the system to plan the most efficient printing sequence that minimizes redundant operations while ensuring accurate ink ejection to densely packed pixels.
Solution Approach 2:
The invention creates a virtual copy of the substrate and nozzle system to simulate the printing process. By copying the physical system into a virtual environment, the system can test and optimize print paths without consuming actual materials or time, thereby improving productivity while maintaining the precision required for high-resolution display devices.
2Area of stationary object
If the head position is changed sequentially at specific intervals to complete printing, then coverage is improved, but unnecessary printing occurs and time is wasted
Solution Approach 1:
The simulation system provides feedback information about which regions of the substrate have been sufficiently printed and which regions require additional printing. Based on this feedback, the system dynamically adjusts the print path selection to avoid unnecessary printing operations in already-satisfied regions while ensuring complete coverage of all substrate areas.
Solution Approach 2:
The system dynamically determines print paths based on real-time simulation results rather than following fixed sequential intervals. The print path selection adapts to the actual printing state, allowing the head to jump to regions that need printing while skipping regions that have already received sufficient ink, thereby reducing unnecessary movements and printing time.
Data Source
AI summary
Provided is a method for determining print paths to be applied when ink is ejected to a substrate. The method for determining the print paths includes a substrate information receiving step of receiving substrate information of the substrate, a head information receiving step of receiving head information of a head that ejects the ink, and a print path determining step of determining the print paths based on the substrate information and the head information, in which in the print path determining step, the smallest number of print paths satisfying a target printing condition for the substrate may be determined.