Active matrix type electro-optical device with patterns of contact hole formation-positions and electronic apparatus
US7157739B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2003 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Dec 5, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D86/60
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention provides an active matrix type electro-optical device and an electronic apparatus using the same capable of preventing interference of light due to contact holes and interference of reflecting light from light-reflecting film. In a thin film transistor (TFT) array substrate of a reflective active matrix type electro-optical device, a light-reflecting film can be formed in a contact hole, but positions of the contact holes for electrically connecting a pixel electrode to a drain electrode, and irregular pattern for scattering light formed on the surface of the reflection film by a lower side irregularity-formation film are different in each of pixels formed in a matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.