Production method of a liquid crystal display device including dividing an exposure step into two exposure regions that partly overlap each other and a photomask with a halftone part
US7872718B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2007 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Jan 7, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133753
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To provide a production method of a liquid crystal display device and a liquid crystal display device, in which generation of a joint line on a display screen is suppressed and yield can be improved even if a substrate is subjected to an alignment treatment by completing exposure for the substrate through several exposures in a liquid crystal display device including pixels each having two or more domains. The present invention is a production method of a production method of a liquid crystal display device, the liquid crystal display device including: a pair of opposed substrates; a liquid crystal layer formed between the pair of opposed substrates; and an alignment film arranged on a liquid crystal layer side surface of at least one of the pair of opposed substrates, and the liquid crystal display device having two or more regions which differ in alignment azimuth in a pixel, wherein the production method comprises an exposure step of exposing the alignment film in such a way that a substrate plane is divided into two or more exposure regions through a photomask in each exposure region, and in the exposure step, exposure is performed in such a way that adjacent two exposure regio…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.