Flat panel display device and method of manufacturing the same
US6617203B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2002 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Apr 15, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D86/60
Abstract
A method of manufacturing a flat panel display device using fewer masks and resulting in a device with high brightness is disclosed. The resulting devices includes at least first to fourth thin film transistors, the first, third, and fourth thin film transistors having a first conductive type, and the second thin film transistors having a second conductive type. The method includes: a) providing a substrate having a non-display region on which the first thin film transistor and the second thin film transistor are formed, and a display region on which the third thin film transistor and the fourth thin film transistor are formed; b) forming first to fourth semiconductor layers of the first to the fourth thin film transistors on the substrate; c) forming a gate insulating layer over the whole surface of the substrate; d) forming first to fourth conductive patterns and a pixel electrode on the gate insulating layer, the first to fourth conductive patterns formed over the first to fourth semiconductor layers, the pixel electrode formed over a portion of the display region; e) forming first to fourth gate electrodes and a fifth conductive pattern, the first to fourth gate electrodes form…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.