Organic Light-emitting display substrate, manufacturing method thereof and display device
US9947731B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2016 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Apr 7, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K71/441
Abstract
Disclosed is an organic light-emitting display substrate, including a substrate and a pixel defining layer on the substrate which includes a plurality of dams crisscrossing in a display area of the substrate to define a plurality of pixel units and define the boundary of the display area, wherein the pixel defining layer further includes a groove arranged on a top surface of each dam, the grooves at least define one frame-shaped area, at least one pixel unit is arranged in each frame-shaped area, and the grooves are used for accommodating a solvent when forming an organic light-emitting element by inkjet printing. Also disclosed is a manufacturing method of an organic light-emitting display substrate and a display device. The present invention can improve the film forming effect of a film layer formed on the substrate, so that the brightness of a display image of the display device is more uniform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.