A promotional product including an emitter is provided. One or more tobacco-containing articles may be received in the package. The promotional product may include an actuator for facilitating delivery of power from a power source to the emitter to provide a visual, audio, and/or haptic effect to the promotional product. The emitter specifically can be a visual emitter, such as an electroluminescent emitter. A related method is also provided.

An illuminated keyswitch includes a keycap, a pair of frames adapted to support the keycap in an up-down movement, the pair of frames disposed corresponding to each other and substantially rotatably coupled to each other to define an inner space under the keycap, a pair of elastic members connecting the pair of frames to be located at two opposite sides of the inner space, respectively, and an illumination light source disposed between the pair of elastic members in the inner space and adapted to provide an illumination light. During the up-down movement of the keycap, a vertical projection of the pair of frames surrounds the inner space without interfering therewith, so the illumination light passes the inner space to illuminate the keycap.

A promotional product including an emitter is provided. One or more tobacco-containing articles may be received in the package. The promotional product may include an actuator for facilitating delivery of power from a power source to the emitter to provide a visual, audio, and/or haptic effect to the promotional product. The emitter specifically can be a visual emitter, such as an electroluminescent emitter. A related method is also provided.

The present invention relates to a luminous keyboard, including a key, a support plate, a switch circuit board, a light guide plate, and a direct-type light emitting element capable of generating a beam. The support plate is located below the key, and the switch circuit board is disposed on the support plate. The light guide plate is located below the support plate and includes a concave structure, and the concave structure forms a reflective surface inside the light guide plate. The direct-type light emitting element is located below the concave structure. When the beam enters the light guide plate, the beam is reflected by the reflective surface to be fully reflected in the light guide plate, and the light guide plate guides the beam to be projected to a peripheral area of a key.

The present invention relates to a luminous keyboard, including a key, a support plate, a switch circuit board, a light guide plate, and a direct-type light emitting element capable of generating a beam. The support plate is located below the key, and the switch circuit board is disposed on the support plate. The light guide plate is located below the support plate and includes a concave structure, and the concave structure forms a reflective surface inside the light guide plate. The direct-type light emitting element is located below the concave structure. When the beam enters the light guide plate, the beam is reflected by the reflective surface to be fully reflected in the light guide plate, and the light guide plate guides the beam to be projected to a peripheral area of a key.

A keyboard structure, including: a keycap; a transparent membrane layer; and an elastic element, disposed between the keycap and the transparent membrane layer and having a press portion, where the transparent membrane layer includes: a first opening corresponding to the keycap; a hard membrane layer, having an extension portion that is formed at an inner edge of the first opening inner edge; and a spacer layer, disposed under the hard membrane layer and used for forming a gap. When the keycap is pressed with an external force, the elastic element is deformed to enable the press portion to move downward and abut against the extension portion, so that the extension portion generates a bending deformation in the gap; and when the external force is released, the elastic element and the extension portion are elastically recovered and the extension portion generates a sound.