公开(公告)号：US20220206589A1

公开(公告)日：2022-06-30

申请号：US17564316

申请日：2021-12-29

Applicant: Darfon Electronics Corp.

Inventor： Chin-Lung CHAN ,  Wei-Yan YOU

IPC: G06F3/023 ,  F21V8/00 ,  G06F3/044

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.

公开(公告)号：US20210349548A1

公开(公告)日：2021-11-11

申请号：US17316762

申请日：2021-05-11

Applicant: Darfon Electronics Corp.

Inventor： Chin-Lung CHAN ,  Wei-Yan YOU ,  Po-Yueh CHOU

IPC: G06F3/02 ,  H03K17/96 ,  G06F3/044

Abstract: A luminous touch keyboard includes a baseplate, a plurality of keycaps, a plurality of support mechanisms connected between the baseplate and the keycaps, and a keyboard composite electrode module disposed between the baseplate and the keycaps and configured to sense a non-pressing movement over the keycaps and to provide light emitting through the keycaps. The support mechanism supports the keycap to move relative to the baseplate and the keyboard composite electrode module. The keyboard composite electrode module includes a light source circuit and a plurality of electrode matrices arranged along a first direction and a second direction. Two of the electrode matrices adjacent in the second direction are mis-aligned. The light source circuit includes a plurality of light sources disposed in the plurality of electrode matrices in a one-to-one manner, and the position of the light source in the electrode matrix is correspondingly the same.