OLED substrate, photo mask, and method of manufacturing OLED substrate
US11515373B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 30, 2020 |
| Grant date | Nov 29, 2022 |
| Priority date | — |
| Expiry date | Sep 14, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K71/164
Abstract
The resent disclosure provides an OLED substrate, a photo mask, and a method of manufacturing the OLED substrate. In one embodiment, an OLED substrate includes: a base substrate; an anode layer on the base substrate; a pixel defining layer on the anode layer, the pixel defining layer having a pattern opening area, the pattern opening area including a plurality of pixel openings arranged in an array manner; and a light-emitting layer formed on the pixel defining layer by evaporation; wherein the pattern opening area has an inward contraction structure with respect to a regular pixel opening area structure in which a plurality of pixel openings are arranged in a manner of an regular array where rows in the regular array are equally spaced from each other and are parallel to each other and columns in the regular array are equally spaced from each other and are parallel to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.