Abstract:
The inventive keyswitch comprises a base plate, a conductive membrane, an elastic member, a key support mechanism and a key wherein the first support lever and the second lever of the key support mechanism are of the same structure and pivotably joined in a scissors-form. The molding die can be simplified, the assembling efficiency can be enhanced and the cost is reduced.
Abstract:
The present invention provides a structure having symbols printed thereon, the structure being a keyboard. The keyboard comprises: at least one keycap; at least one symbol printed on the surface of the keycap; and at least one first protective layer having a plurality of reticulate dots, the first protective layer being formed over the symbol on the surface of the keycap. The invention further provides a method for printing symbols on a keyboard, comprising the steps of: printing a plurality of symbols on the surface of the keycap of the keyboard; and forming a first protective layer having a plurality of reticulate dots over the plurality of symbols on the surface of the keycap of the keyboard.
Abstract:
An energy-saving light-emitting module is provided, comprising: a light guide plate having a light-incident surface, a bottom surface intersecting the light-incident surface and a light-emitting surface opposite the bottom surface, wherein a plurality of recesses are provided at the bottom surface; a light source placed at one side of the light-incident surface of the light guide plate; and a reflective plate placed at the bottom of the light guide plate for reflecting light rays from the light source into the light guide plate. The light rays emitted by the light source reach the arc surface of each recess at the bottom side of the light guide plate, and the light rays are then reflected to the light-emitting surface. Meanwhile, during the light-emitting process, light rays are concentrated at the arc surface of each recess. The concentration of light rays increases overall luminance produced by the module, and thus, energy is saved effectively.
Abstract:
A waterproof keyboard comprises: keys, an elastic rubber layer, a circuit board layer, a bottom board, and a sealing layer. The keys are mounted on the bottom board on which a plurality of apertures are disposed, and the sealing layer is disposed under the bottom surface of the bottom board. Corresponding to the apertures on the bottom board, respective adhesives are formed on the sealing layer so as to firmly adhere the sealing layer to the bottom surface of the bottom board.
Abstract:
A flexible membrane circuit structure for keyboard comprises a substrate; a membrane circuit structure arranged on the substrate and comprising an upper membrane layer and a lower circuit layer, a plurality of movable keytops depressibly arranged on the substrate and each corresponding to one the conductive contact; at least one fixed keytop arranged on marginal location of the keyboard and being not depressible. Each membrane circuit layer has conductive contacts. The conductive contacts on the upper membrane layer has a predetermined separation with corresponding conductive contacts on the lower membrane layer. The upper membrane layer and the lower circuit layer is bridged by at least one folded plate such that the upper membrane layer electrically and mechanically connected with the lower circuit layer. The folded plate received within the fixed keytop to prevent the breaking of the folded plates.
Abstract:
A key structure is provided. The present key structure includes a key cap, a scissor-type frame, an elastic contact body, a membrane circuit board, and a bottom board. A plurality of flanges is provided on the bottom of the elastic contact body, with the surface of the flange being formed as an embossed surface having a cross-striped structure. A print layer is provided on the area of the membrane circuit board corresponding to the flanges of the bottom of the elastic contact body, such that there is a height difference between the print layer and the membrane circuit board. The print layer is formed of a plurality of discontinuous printing portions between which a plurality of holes is formed. After the elastic contact body is bonded to the membrane circuit board by an adhesive, the press force of the elastic contact body caused by pressing the key can be released via the holes. The bonding area of the bottom of the elastic contact body is increased by the cross-striped structure of the embossed surface so as to enhance bonding between the elastic contact body and the membrane circuit board and prevent the adhesive from being extruded out from therebetween.
Abstract:
A keyboard with liquid-draining function, at least including: keys, elastic body layer, circuit board layer, bottom board and sealing layer; wherein the bottom board is installed with at least a liquid-draining hole, with the dividing mechanism being installed between the circuit board layer and the bottom board to form a liquid-draining space. The liquid-draining space and the liquid-draining hole are connected for the purpose of draining liquid that is accidentally poured into the keyboard, so that liquid flowing down through the keys can be drained away swiftly via the liquid-draining space and drained out of the keyboard through the liquid-draining hole, thus preventing liquid from accumulating in the keyboard, and maintaining the normal operation of the keyboard.
Abstract:
A droplet proof keyboard for notebook computer comprises a base; a circuit membrane set on the base; a mounting plate on the circuit membrane set and having a through hole and a plurality of retaining parts for each keyswitch; a rubber cone set having a plurality of rubber cones, each rubber cone having a press part passing the through hole and touching the circuit membrane when the keyswitch is pressed; a plurality of key caps each corresponding to a keyswitch and having locking parts on lower surface thereof; an opaque plate arranged on the mounting plate and clamping the rubber cone; the opaque plate having an opening for each rubber cone and a plurality of slits through which lower ends of a switching lever passing; a switching lever set having a plurality of switching levers; each switching lever having a plurality of upper ends pivotally arranged on the locking parts of the keycap and a plurality of lower ends pivotally arranged on the retaining parts of the mounting plate. There is no aperture below the mounting plate and the circuit membrane set is not influenced by droplet.
Abstract:
Presented herein is an illuminated keyboard having: a key module having a plurality of keycaps, scissors structures, elastic members, and a membrane circuit board; a keyboard base plate having a plurality of positioning members corresponding to the keycaps and integrally formed on the keyboard base plate for positioning the keyboard module on the keyboard base plate; a light guiding plate disposed beneath the key module and over the keyboard base plate, the light guiding plate having a light incoming surface, a bottom surface intersecting the light incoming surface, a light outgoing surface opposite to the light incoming surface, and provided with light holes corresponding to the positioning members; light sources arranged on one side of the light incoming surface of the light guiding plate, wherein a light emitted from the light sources is transmitted into the light guiding plate from the light incoming surface and transmitted out of the light guiding plate from the outgoing surface; and a reflecting sheet disposed beneath the bottom surface of the light guiding plate for reflecting the light emitted from the light sources into the light guiding plate, the reflecting sheet having through holes corresponding to the positioning members and the light holes.
Abstract:
Disclosed herein is an illuminated keyboard comprising: a key module having a plurality of keycaps, scissors structures, elastic members, and a membrane circuit board; a keyboard base plate having a plurality of positioning members corresponding to the keycaps and integrally formed on the keyboard base plate for positioning the keyboard module on the keyboard base plate; a light guiding plate disposed beneath the key module and over the keyboard base plate, the light guiding plate having a light incoming surface, a bottom surface intersecting the light incoming surface, a light outgoing surface opposite to the light incoming surface, and provided with light holes corresponding to the positioning members; light sources arranged on one side of, the light incoming surface of the light guiding plate, wherein a light emitted from the light sources is transmitted into the light guiding plate from the light incoming surface and transmitted out of the light guiding plate from the outgoing surface; and a reflecting sheet disposed beneath the bottom surface of the light guiding plate for reflecting the light emitted from the light sources into the light guiding plate, the reflecting sheet having through holes corresponding to the positioning members and the light holes.