Liquid crystal display device with reflector forming part of capacity element
US6657688B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2001 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Aug 16, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136213
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display device has on each pixel region at a liquid-crystal side of one of a pair substrates, a thin film transistor driven by scanning signals from a gate signal line, a pixel electrode to which video signals from a drain signal line are supplied through the thin film transistor, and a capacity element formed between the pixel electrode and a holding capacity electrode. The capacity element is formed such that a semiconductor layer forming the same layer as a semiconductor layer of the thin film transistor, a first insulation film forming the same layer as a gate insulation film of the thin film transistor, the holding capacity electrode, a second insulation film and a metal layer are sequentially. The semiconductor layers and the metal layer are connected to each other. The metal layer is formed as a reflector which occupies a portion of the pixel region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.