Display device
US10872943B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2019 |
| Grant date | Dec 22, 2020 |
| Priority date | — |
| Expiry date | Jul 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/3026
Abstract
A display device includes a substrate provided with a plurality of subpixel areas, a circuit element layer provided on the substrate and provided with a transistor for each subpixel area, an insulating layer provided on the circuit element layer and provided with a recessed portion formed to overlap the transistor, a reflective electrode provided on the insulating layer and provided in the recessed portion, a first electrode provided on the reflective electrode while being overlapped with the recessed portion, an organic light emitting layer provided on the first electrode, a bank provided between the subpixel areas while covering an end of the first electrode, and a second electrode provided on the organic light emitting layer, wherein the recessed portion, the reflective electrode and the first electrode may be provided with N stages, wherein N is an integer greater than 1, whereby light efficiency may be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.