Inhibiting display discoloration
US9606264B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2013 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Mar 26, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/501
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An electronic device includes a display for rendering content. The display may include a protective sheet that is located between an image-displaying component and a liquid optically clear adhesive (LOCA) that adheres another component layered atop the display, such as a front light, a touch sensor or a cover layer. In some cases, the protective sheet may be a polymer sheet coated with a layer of ceramic material that prevents migration of a reactive species, such as a photoinitiator, between the protective sheet and the LOCA. Alternatively, a plasma treatment, a UV-light-ozone treatment, or a thermal treatment may be applied to the protective sheet to remove material including the reactive species and/or form a barrier layer to prevent migration of the reactive species. Still alternatively, the protective sheet may be a thin flexible glass sheet that does not include constituents that interact with the LOCA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.