Driving current of organic light emitting display and method of driving the same
US7646366B2 · kind B2 · utility
7Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2005 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | Mar 9, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0233
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A driving circuit of an organic light emitting display includes: a first PMOS transistor turned on in response to a driving signal to transfer a data signal; an OLED (organic light emitting diode) where an amount of light emitted is controlled by a control current; a second PMOS transistor for supplying the control current to the OLED; a third PMOS transistor connected to a node to which the first and second PMOS transistors are connected; a first capacitor connected between the first PMOS transistor and the third PMOS transistor; and a second capacitor connected between the second PMOS transistor and the first PMOS transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.