Picker Coordinate Pre-calculation for Display Cell Picking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing manufacturing processes for display devices are inefficient in picking up cells formed on a substrate, as they require separate calculations for each cell's corrected coordinates, leading to increased time and complexity.
Innovation Solution
A method that calculates and uses pre-stored corrected coordinates for adjacent cells, allowing the same picker to pick up multiple cells using a single corrected coordinate, thereby reducing the time and effort required for cell picking and transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate corrected coordinates are calculated for each cell, then picking accuracy is maintained, but manufacturing time increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing corrected coordinates for multiple cells before the picking process begins. The coordinate calculation is performed in advance based on the relationship between alignment marks and cell positions, allowing the picker to directly use these pre-computed coordinates during actual cell picking without performing calculations in real-time, thus reducing manufacturing time while maintaining accuracy.
Solution Approach 2:
The patent segments the coordinate calculation process from the cell picking process. By dividing the workflow into a preparation phase (coordinate calculation and storage) and an execution phase (cell picking using pre-stored coordinates), the system eliminates redundant calculations during the time-critical picking operation, resolving the contradiction between accuracy and speed.
2Manufacturing precision
If coordinate calculation is performed for every cell, then positioning accuracy is ensured, but process complexity increases
Solution Approach 1:
The patent reduces process complexity by performing the complex coordinate calculation work in advance during a preparation phase. The corrected coordinates are calculated based on alignment mark positions and stored in memory, transforming a complex real-time calculation process into a simple retrieval and application process during cell picking, thereby maintaining positioning accuracy while simplifying the overall process.
Solution Approach 2:
The patent creates a copy of the coordinate relationship data by storing corrected coordinates in memory. Instead of repeatedly performing complex calculations involving alignment marks and cell positions, the system copies the pre-established coordinate relationships and applies them directly during picking operations, reducing computational complexity while preserving positioning precision.
3Productivity
If multiple pickers are used to pick up cells simultaneously, then productivity increases, but coordination complexity and time synchronization issues arise
Solution Approach 1:
The patent segments the picker operations into independent, parallel tasks, each with its own pre-calculated coordinate set. By dividing the overall cell picking task among multiple pickers with individually optimized coordinate data, the system enables simultaneous operations without requiring complex real-time coordination, as each picker independently follows its pre-determined path to pick cells from specific positions.
Solution Approach 2:
The patent applies preliminary action by pre-calculating and distributing corrected coordinates to multiple pickers before they begin their operations. This advance preparation of coordinate data for each picker eliminates the need for complex runtime synchronization and coordination logic, allowing multiple pickers to operate simultaneously and independently while maintaining overall system coherence and achieving high productivity.
Data Source
AI summary
A method for manufacturing a display device includes providing an original substrate on a support member, where the original substrate includes a first cell and a second cell adjacent to each other in a row direction or a column direction, moving a first picker above the first cell, calculating a first corrected coordinate based on an initial position of the first picker and a reference position of the first cell, moving the first picker to a first corrected position by using the first corrected coordinate such that the first picker picks up the first cell, moving the first picker above the second cell, and moving the first picker to a second corrected position by using a second corrected coordinate such that the first picker picks up the second cell, where the second corrected coordinate is the same as the first corrected coordinate.