Display substrate and mask plate assembly
US12342711B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 18, 2020 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | May 28, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A display substrate and a mask plate assembly includes a base substrate, a pixel defining layer, a functional layer, a cathode layer, and a covering layer that are sequentially stacked in a direction away from the base substrate, wherein the size of orthographic projection of the functional layer on the base substrate is jointly determined by the size of a display area and a first minimum distance. The first minimum distance is the minimum distance in a direction from the display area to a non-display area and between the boundary of the display area and the boundary of the functional layer, and is determined by a first shadow width of the functional layer extending from the display area to the non-display area. The first shadow width is the maximum width of a shadow area formed within a preset region when the functional layer is vapor deposited in the preset region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.