Exposure device of an alignment material film
US9063376B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2011 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Dec 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133757
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an exposure device, picture elements or pixels of a liquid crystal display device are split into two parts in the width direction, and exposed from different directions, whereby an alignment material film is photoaligned. The exposure device causes two beams of exposure light outputted by two light sources (a first light source and a second light source to be transmitted through respectively different light transmission regions in a predetermined pattern of a mask, to irradiate regions of an alignment material film formed on a member for exposure, which regions correspond to split regions of pixels or picture elements. The exposure device causes the two beams of exposure light to mutually intersect on the optical path between the first and second light sources and the alignment material film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.