Apparatus and method of driving electro luminescence panel
US6724151B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Jun 25, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0233
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A driving apparatus for an electro luminescence panel that is capable of preventing deterioration of a picture quality according to the present invention includes a power supply VDD for supplying power source to the electro luminescence cell OLED, a first TFT connected between the power supply and the data line, a second TFT connected between the power supply and the electro luminescence cell OLED, a third TFT connected between the power supply and the first TFT for switching according to a signal on the gate line, a fourth TFT connected between gate electrodes of the first and second PMOS TFTs and the data line for switching according to a signal on the gate line and a path of a data signal from the data line, and a capacitor connected between the gate electrodes of the first and second PMOS TFTs and the power supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.