Display device and manufacturing method thereof
US11392047B2 · kind B2 · utility
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1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2021 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Jun 22, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136295
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of manufacturing a display device including: preparing a substrate having a display area and a non-display area; and forming an alignment mark disposed in the non-display area of the substrate. The alignment mark includes a quadrangular-shaped center portion and a plurality of measurement portions that surround the center portion, the plurality of measurement portions including four or more measurement portions, and each of the measurement portions including sides that are parallel with two sides of the quadrangular-shaped center portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.