OLED display device
US10347182B2 · kind B2 · utility
2Cited by
0References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2017 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Jan 6, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/1213
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention provides an OLED display device, using a 3T1C driving structure, and having the source of the first TFT to the reference voltage to ensure the second TFT to operate in saturation region in normal display state through controlling the reference voltage, to ensure the grayscale continuity. By using a reference voltage metal layer to cover all sub-pixels to replace reference voltage routing to provide reference voltage to the source of the first TFT, the invention eliminates the impact of reference voltage routing on pixel aperture ration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.