Luminous key top
AssigneeAlps Electric Co., Ltd.
InventorsTatsuya Moriike, Atsushi Haseyama
Life of this patent
Estimating the term…
Abstract
A luminous key top having display sections comprises: a display member having a plurality of protrusions corresponding to the respective external configurations of the display sections and formed of a transparent or a translucent synthetic resin; an external member consisting of an opaque synthetic resin and formed integrally on the display member except for the respective top surfaces of the protrusions; first light-transmitting color layers formed by printing on the respective top surfaces of the protrusions; and second light-transmitting color layers formed by printing on the first light-transmitting color layers.
Claims4
A luminous key top comprising:
- a display member having protrusions corresponding to external shapes of displayed sections of said display member, said display member being made of a transparent or a translucent synthetic resin, said display member having an exposed region, said protrusions having top surfaces;
- an external member made of an opaque synthetic resin and integrally formed on said display member except for said exposed region;
- a first transparent colored layer printed and formed on the exposed region of said display member, said first transparent colored layer being a first color;
- a second transparent colored layer printed and formed on top of the first transparent colored layer, said second transparent colored layer being a second color;
- and
- a light source acting as a back light characterized in that a displayed color of the exposed region of said display member is a mixture of the first color and the second color in response to a presence of light illumination of said light source.
Dependencies are inferred from the claim text.