Lighting keyboard, backlight module and lighting board
US12354815B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2023 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Apr 2, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2219/062
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting keyboard includes a backlight module and a keyswitch. The backlight module includes two lighting units, a light guide panel, a lighting board and a micro-structure layer. The light guide panel includes two panel holes to accommodate the two lighting units. The light guide panel further includes at least one slot located between the two lighting units. The lighting board is disposed in parallel to the light guide panel, and the lighting board includes at least one pair of non-parallel main traces in electrical connection with the two lighting units. The micro-structure layer is disposed in parallel to the light guide panel, and the micro-structure layer includes at least one micro-structure region. The at least one micro-structure region is disposed between the two lighting units, and meanwhile the at least one slot of the light guide panel is at least partially located within the at least one micro-structure region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.