Active matrix substrate, for use in a liquid crystal display and method for producing the same
US5877832A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1997 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Mar 12, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136227
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An active matrix substrate includes a switching device; a scanning line electrically connected to the switching device; a signal line electrically connected to the switching device and arranged so as to cross the scanning line; an interlayer insulation layer formed over the switching device, the scanning line and the signal line, the interlayer insulation layer having a contact hole; and a picture element electrode provided on the interlayer insulation layer and electrically connected to the switching device through the contact hole. The picture element electrode has a recessed portion in the contact hole, and a buried portion formed of an insulation material is provided in the recessed portion so that a top surface of the buried portion and a top surface of the picture element electrode are at an identical level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.