Display panel, preparation method thereof and display device
US11127935B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2020 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Apr 8, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K71/821
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed are a display panel, a preparation method thereof and a display device. The display panel includes a display region and a non-display region. The preparation method includes: providing a base substrate; preparing a first metal layer on a side of the base substrate; preparing a first insulation layer on a side of the first metal layer; performing a patterning process on the first insulation layer by using a mask plate to form a plurality of first via holes; preparing a passivation layer on a side of the first insulation layer; performing the patterning process on the passivation layer by using the same mask plate to form a plurality of second via holes, where a vertical projection of each of the first via holes on a plane where the base substrate is located covers a vertical projection of one of the second via holes on the plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.