Switching circuitry layout for an active matrix electroluminescent display pixel with each pixel provided with the transistors
US6104041A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 1998 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | May 29, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D64/112
Abstract
In an active matrix electroluminescent display, a pixel containing a electroluminescent cell and the switching electronics for the electroluminescent cell where said switching electronics contains two transistors, a low voltage MOS transistor and a high voltage MOS transistor. A low voltage transistor is controlled by signals on a data and a select line. When activated, the low voltage transistor activates the high voltage transistor by charging the gate of the high voltage transistor. The gate charge is stored between the gate electrode of the high voltage transistor and an electric field shield forming a pixel signal capacitor. The pixel signal capacitor is positioned within the layout of the pixel a distance from the drain of the high voltage MOS transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.