Pixel circuit for an active matrix organic light-emitting diode display
US7310077B2 · kind B2 · utility
6Cited by
38References
27Claims
0Family size
Inventor
Key dates
| Filing date | Sep 29, 2004 |
| Grant date | Dec 18, 2007 |
| Priority date | — |
| Expiry date | Jun 1, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0248
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel circuit for an OLED element comprises first, second, third and fourth transistors wherein controllable conduction paths of the first and second transistors are connected for receiving a data signal current, and the control electrodes thereof are connected for receiving a select signal for being enabled thereby. The third and/or fourth transistors are connected for establishing a current in the OLED element responsive to the data signal current and the select signal. Capacitance may be provided by at least one of the transistors or by additional capacitance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.