Pixel and organic light emitting display device using the same
US8441421B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2010 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Aug 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel includes an OLED coupled to a second power supply, a first transistor coupled to a first power supply for controlling current through the OLED, a second transistor coupled between a data line and the first transistor, third transistors coupled between a gate electrode and a second electrode of the first transistor, the second and third transistors configured to be turned on when the scanning signal is supplied to the i-th scanning line, fourth transistors coupled between an initial power supply and the first transistor, and configured to be turned on when the scanning signal is supplied to an i−1-th scanning line, a first capacitor coupled between the first power supply and the first transistor, and a second capacitor with a first terminal coupled to nodes between two of the third transistors and two of the fourth transistors, and a second terminal coupled to the first power supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.