Display device and manufacturing method thereof
US11079689B2 · kind B2 · utility
0Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2019 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | May 21, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136295
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display device including: a substrate having display area and a non-display area; and 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.