Screen protector
US7070837B2 · kind B2 · utility
134Cited by
13References
29Claims
0Family size
Inventor
Key dates
| Filing date | Nov 26, 2002 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Jan 30, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2861
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A plastic film screen protector that prevents interference patterns from arising when the film touches the screen is described. The advantages are accomplished by the film having a slightly roughened surface so that the majority of the film facing an electronic device screen does not substantially touch the screen. These physical aberrations prevent Newton ring interference patterns and spots caused by refractive index differences between air and the film material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.