Pixel circuit and driving method and display device thereof
US9230483B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2014 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Apr 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0251
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel circuit includes an OLED, a driving transistor, first and second transistors, a storage capacitor and a coupling capacitor. The OLED includes an anode and a cathode connected to a first voltage source. The driving transistor includes a first node connected to a second voltage source, a second node, and a third node connected to the anode. The first transistor includes first, second and third terminals connected to a data driving line, a first control signal source, and the second node, respectively. The second transistor includes a first terminal, a second terminal connected to a second control signal source, and a third terminal connected to the anode and the third node. The storage capacitor includes first and second terminals connected to a third voltage source and the second transistor, respectively. The coupling capacitor includes first and second terminals connected to the second transistor and the second node, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.