Display device with a storage capacitor including multiple dielectric constant layers
US10825880B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2018 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Sep 27, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2300/0861
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device includes: a substrate; a semiconductor on the substrate and including a driving channel; a first insulating layer on the semiconductor; a driving gate electrode on the first insulating layer and overlapping the driving channel; a second insulating layer on the driving gate electrode and the first insulating layer and including first and second dielectric constant layers, the second dielectric constant layer having a dielectric constant that is greater than that of the first dielectric constant layer; a storage electrode on the second insulating layer; a passivation layer covering the storage electrode and the second insulating layer; a pixel electrode on the passivation layer; an emission member on the pixel electrode; and a common electrode on the emission member, wherein the storage electrode overlaps the driving gate electrode, and wherein the storage electrode, the driving gate electrode and the second insulating layer therebetween form a storage capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.