Liquid crystal display device
US8451418B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 28, 2011 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Dec 2, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/40
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display device having a high definition screen in which a pixel electrode is formed in a region surrounded by a gate line and a drain line, and a trapezoidal protrusion having an upper surface and inclined surfaces is formed below the gate line. Since a TFT is formed over a trapezoidal protrusion and a channel portion is formed over the upper surface and the inclined surfaces of the trapezoidal protrusion, the width of the channel portion can be enlarged compared to that of a channel portion formed over a plane. The pixel electrode is in contact with a source electrode at the inclined surface of the trapezoidal protrusion. This configuration allows the TFT and a contact of the pixel electrode and a source electrode to be formed over part of the trapezoidal protrusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.