Darfon Electronics Corporation

Yi-Jui Pan

Po-Yueh Chou

A circuit board includes a substrate having a plurality of through-openings, a plurality of coupling members disposed on the substrate and configured to connect to a keycap, a switch circuit disposed on the substrate and having switch pads for triggering a keyswitch signal in response to the keycap moving toward the substrate, a lighting circuit disposed on the substrate at a side opposite to the coupling members, and an illuminant electrically connected to the lighting circuit. The switch pads and illuminant arranged such that their vertical projections fall within an area surrounded by the plurality of coupling members. A keyboard includes the switch circuit, the lighting circuit, a light guide sheet, and at least one keycap, such that light from the illuminant enters the light guide and propagates transversely to illuminate the at least one keycap.

Keyboard with backlit circuit board

A lighting board includes a substrate having an insulation surface, a plurality of openings penetrating through the substrate, a plurality of coupling members disposed on the substrate and configured to connect to at least one keycap, a lighting circuit disposed on the insulation surface at a side opposite to the coupling members, an illuminant electrically connected to the lighting circuit, and a protective layer disposed on the insulation surface and covering the lighting circuit. A keyboard includes the lighting board, a light guide sheet, and at least one keycap, such that light from the illuminant enters the light guide and propagates transversely to illuminate the at least one keycap.

Growing community of inventors

Taoyuan, Taiwan

Yi-Jui Pan