Rubbing alignment method of alignment layer
US10120240B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 2015 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Aug 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133723
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a rubbing alignment method of an alignment layer, comprising steps of: step 1, providing a substrate (10), and coating an alignment layer (4) on the substrate (10); step 2, providing a rubbing roller (5), and employing the rubbing roller (5) to implement a first rubbing alignment to the alignment layer (4) according to a first rubbing direction; step 3, employing the rubbing roller (5) to implement a second rubbing alignment to the alignment layer (4) according to a second rubbing direction, and the second rubbing direction is opposite to the first rubbing direction. The rubbing alignment method of the alignment layer can effectively eliminate the rubbing shadow to prevent the uneven rubbing alignment and the liquid crystal alignment disorientation to make the liquid crystals in an orderly arrangement. Thus, the light leakage phenomenon of the liquid crystal display panel in the dark state can be suppressed and the contrast ratio can be raised.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.