Friction roller and method for using the same
US9933663B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Jul 22, 2015 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Aug 21, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133776
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The disclosure discloses a friction roller comprising: a friction roller body comprising an inner cylinder and a pattern-variable module wrapped outside the inner cylinder; and a controller connected with the pattern-variable module. The controller controls the pattern-variable module to deform according to step information of a surface for friction. Also disclosed is a method for using the friction roller. Embodiments of the disclosure enable alignment grooves with the same depth to be formed on the surface for friction by way of the friction roller, thereby reducing stripes on the surface for friction and enhancing the display effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.