Method for preparing pixel define layer
US12207498B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2023 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Nov 9, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K71/40
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An object of the present disclosure is to implement a coloring pattern with a constant illuminance value on an electrode substrate to thereby increase display reliability and lifetime while reducing delamination of the hole transport layer (HTL) in the post-process. That is, when the roughness of the pattern after post-baking treatment is low, it may cause delamination of the hole transport layer (HTL) and a decrease in lifetime due to defective pixels, and thus a certain roughness can be obtained by minimizing the surface flow by leaving the substrate at a high temperature during post-baking treatment according to the present disclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.