Light emitting device free of TFT and chiplet
US10141378B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2014 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Jul 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/80521
Abstract
A light emitting device is disclosed, including a first electrode layer, a second electrode layer, and an organic light emitting layer sandwiched between the first and second electrode layers. The second electrode layer is patterned to form a plurality of electrode patterns arranged with different densities. The organic light emitting layer is subjected to a color separation process to form a plurality of monochromatic blocks that correspond to the electrode patterns, respectively. The electrode patterns are divided into a plurality of electrode pattern groups arranged in an alternate manner. The electrode pattern groups display a same image, and a same voltage is applied to the electrode pattern groups at a same time. Alternatively, the electrode pattern groups display different images, and a same or different voltages are applied to the electrode pattern groups at different times. As such, the light emitting device generates grayscale, full-color, three-dimensional or dynamic images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.