Light emitting keyboard and lighting board thereof
US10720289B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2019 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Aug 27, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2219/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light emitting keyboard includes a bottom board, keyswitches, and a lighting board. The lighting board is disposed between the bottom board and the keyswitches or under the bottom board and includes a flexible substrate having a first hole, multiple-light emitting diodes corresponding to the keyswitches, first and second silver-paste circuit layers formed on upper and lower surfaces of the flexible substrate respectively, a via pillar formed in the first hole to be coupled to the first and second silver-paste circuit layers, a copper layer plated on the first and second silver-paste circuit layers, and a first protection layer coated on the copper layer and having second holes. Each multiple-light emitting diode is disposed on the copper layer plated on the first silver-paste circuit layer through the corresponding second hole to be coupled to the first silver-paste circuit layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.