Method of fabrication of diode-type control matrices for a flat electrooptical display screen and a flat screen constructed in accordance with said method
US4653858A · kind A · utility
27Cited by
2References
9Claims
0Family size
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Key dates
| Filing date | Mar 31, 1986 |
| Grant date | Mar 31, 1987 |
| Priority date | — |
| Expiry date | Mar 31, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Diode-type control matrix arrays for electrooptical flat-panel screens which find application in liquid-crystal displays are fabricated by depositing a layer of conductive material on a substrate and etching the control electrodes and control leads in this layer. The entire structure is then coated with an undoped amorphous semiconductor layer, with a doped amorphous semiconductor layer, and with a second layer of conductive material. In these three layers are etched terminal areas (or control elements) for connecting the control electrodes to the control leads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.