Display apparatus including pad unit having plurality of conductive layers with multiple openings
US12156444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2021 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Jan 7, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/1216
Abstract
A display apparatus includes: a substrate including a display area, and a peripheral area; and a pad unit at the peripheral area, the pad unit including: a first conductive layer; a second conductive layer on the first conductive layer, and having a first opening; a third conductive layer on the second conductive layer, and having a second opening overlapping with the first opening, the second opening having an area less than an area of the first opening at a top surface of the second conductive layer; an organic protective layer filling the first opening, and having a third opening overlapping with the second opening; and an additional metal layer covering a top surface of the first conductive layer exposed through the first opening, an inner surface of the second opening, an inner surface of the third opening, and a portion of a top surface of the third conductive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.