Electroluminescent display device and method of fabricating same
US10811626B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2018 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Dec 20, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/331
Abstract
An electroluminescent display device and a fabricating method thereof are provided. The device has a TFT layer, a first functional layer, an electroluminescent layer, a second functional layer, and a functional bar disposed sequentially. The device uses Seebeck effect of constituent material of p-type Bi2Te3 of the functional bar to absorb heat of the TFT layer for converting the heat into electric energy, thereby effectively reducing heat of the TFT layer, reducing aging of circuit and organic material, and improving life of the electroluminescent display device. A work function of p-type Bi2Te3 material of the functional bar is 5.3 eV. An electroluminescent material has a HOMO energy level ranging from 5 to 6 eV. Under a driving of a thermoelectromotive force, majority carriers (holes) in the constituent material of p-type Bi2Te3, are injected into the electroluminescent layer to improve a carrier concentration therein, thereby improving emission luminance of the electroluminescent display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.