Keyboard overlay film with touch and/or backlight function
US11416083B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2021 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Dec 29, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A keyboard overlay film forming a plurality of keycap accommodating cavities and a key-gap space, the key-gap space surrounding the keycap accommodating cavities, and the keycap accommodating cavities respectively including a key projection surface, wherein the keyboard overlay film includes a top protective layer; a character layer located on a side of the top protective layer forming the keycap accommodating cavities, and the character layer includes a plurality of light-transparent characters respectively corresponding to the key projection surface of the keycap accommodating cavities; a set of touch electrodes located on a side of the character layer opposite to the top protective layer; and a lower protective layer located on a side of the set of touch electrodes opposite to the character layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.