Techniques for arrayed printing of a permanent layer with improved speed and accuracy
US11167303B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2019 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Mar 18, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K71/135
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A repeatable manufacturing process uses a printer to deposits liquid for each product carried by a substrate to form respective thin films. The liquid is dried, cured or otherwise processed to form from the liquid a permanent layer of each respective product. To perform printing, each newly-introduced substrate is roughly mechanically aligned, with an optical system detecting sub-millimeter misalignment, and with software correcting for misalignment. Rendering of adjusted data is performed such that nozzles are variously assigned dependent on misalignment to deposit droplets in a regulated manner, to ensure precise deposition of liquid for each given area of the substrate. For example, applied to the manufacture of flat panel displays, software ensures that exactly the right amount of liquid is deposited for each “pixel” of the display, to minimize likelihood of visible discrepancies in the resultant display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.