Abstract: A switch unit has an operation key, a cover member having an opening corresponding to the operation key, and a light emitting device disposed on a rear surface side of the cover member that makes the periphery of the operation key luminous by irradiation with light from a light emitting portion disposed on the periphery of the operation key. A top surface side of the operation key is inserted from the rear surface side of the cover member into the opening. An opposing-mirror portion is disposed on the cover member on at least a peripheral part of the operation key. The opposing-mirror portion has a half-mirror portion and a mirror portion spaced apart from the half-mirror portion with a space therebetween. The half-mirror portion is disposed above the mirror portion. The light emitting portion of the light emitting device faces the space between the half-mirror portion and the mirror portion.

Abstract: A slim key includes a supporting plate, at least one key cap, at least one dome and a light-permeable circuit board. The supporting plate is disposed above the circuit board and has at least one frame part. Each frame part is formed with a light-permeable hole at a central portion thereof. The key pad is disposed on the top surface of the frame part correspondingly. The circuit board has at least one conductive circuit formed thereon under the dome correspondingly. The dome is correspondingly disposed between the frame part and the circuit board. According to one embodiment, the instant disclosure also provides an electronic device with the slim keypad structure.

Abstract: In one aspect, a keycap for use in backlit keyboards is provided. The keycap includes a translucent base having a surface with a layer of paint applied directly onto the surface. The layer of paint is capable of blocking at least some light that passes through the translucent base when the keycap is backlit. A groove is etched on the surface that defines the shape of a symbol. The groove penetrates the layer of paint completely, thus exposing parts of the translucent base that are hidden underneath the layer of paint. Because the translucent base is exposed by the groove, when the keycap is backlit, the symbol may appear to glow while the rest of the keycap's surface may appear to remain dark. The symbol may be a letter, number, or any other symbol one might want to put on a keyboard key.

Abstract: A switch module including a light source element is provided that obtains slimming down and a sufficient click feeling and suitably irradiates a key portion, while suppressing manufacturing cost. A switch module is disposed to face a key portion. The switch module includes a transparent FPC board, a transparent conductive film, an electrode, a metal dome which is in contact with a part of the transparent conductive film and which is allowed to come into contact with the electrode by being deformed, and an LED. Light emitted from the LED and guided in a direction orthogonal to a thickness direction of the board in the transparent FPC board is reflected by a reflecting portion provided on the transparent FPC board, in a direction of the key portion.

Abstract: A key switch structure capable of reducing the height of a key switch, reducing the number of components, and reducing manufacturing costs. The key switch structure includes: a key top; first and second linking mechanisms and adapted to support the key top; a membrane sheet having a contact point portion; a back plate disposed below the membrane sheet and having a function to guide light; and an LED sheet having an LED as a light emitting element disposed thereon, wherein the LED is disposed to be adjacent to the back plate.

Abstract: A lighted pushbutton assembly includes a carrier including an outer wall that defines an inner space and is continuous along a top surface of the carrier. A rib guide is formed as part of the outer wall and defines an opening extending through a bottom surface of the outer wall and including a first portion extending in a first direction and a second portion extending in a second direction that is non-parallel to the first direction. A pushbutton is shaped to fit substantially within the inner space and a rib is formed as part of the pushbutton and includes a first guide that extends in the first direction and the second guide that extends in the second direction. The first guide is engaged with the first portion and the second guide is engaged with the second portion to guide reciprocating movement of the pushbutton with respect to the carrier.

Abstract: The present invention provides technology that can efficiently guide light to the interior of a key sheet and prevents light from leaking from the circumferences of key tops. A key sheet has a light-shielding dark print layer, on the rear surface of a base sheet, that is a cured body of a coating liquid that is not dissolve to the surface of the base sheet, and also has a smooth surface between the base sheet and the dark print layer. The invention can make light transmitting in the base sheet hard to enter the dark print layer so that the light can be efficiently guided in the base sheet, and also can prevent light from transmitting through the base sheet by blocking the light.

Abstract: A friction device, keypad assembly and portable electronic device are disclosed. In one embodiment, there is provided a keypad assembly for a portable electronic device, comprising: a keypad having a number of keys each having an actuator post attached to a back side thereof; a circuit board; a light guide located between the keypad and the circuit board, the light guide defining a number of holes which provide paths for respective actuator posts to travel through to contact respective electrical switches on the circuit board; and at least one friction device located in one of the holes of the light guide, the friction device providing a physical barrier limiting movement of the actuator post in a direction normal to a direction of actuation, the friction device applying friction to at least one side of the actuator post and resisting movement of the actuator post in the direction of actuation.

Abstract: Sub-membrane keycap indicators for keyboard assemblies may be implemented by positioning an indicator light element beneath a switch membrane circuit and within the baseplate of a key device. The indicator light element may be so positioned to direct light upward in a substantially narrow cone to an aperture or lightguide molded into a keycap in order to illuminate or light the indicator aperture or lightguide to indicate the current status of at least one component of an information handling system.

Abstract: A switch module including a light source element is provided that obtains slimming down and a sufficient click feeling and suitably irradiates a key portion, while suppressing manufacturing cost. A switch module is disposed to face a key portion. The switch module includes a transparent FPC board, a transparent conductive film, an electrode, a metal dome which is in contact with a part of the transparent conductive film and which is allowed to come into contact with the electrode by being deformed, and an LED. Light emitted from the LED and guided in a direction orthogonal to a thickness direction of the board in the transparent FPC board is reflected by a reflecting portion provided on the transparent FPC board, in a direction of the key portion.

Abstract: A push-button device (1) is provided for actuating a technical system (2), especially in a motor vehicle. The push-button device (1) comprises at least one push button (6) as well as a holding device (10). The push button (6) is arranged in the holding device (10) and can be moved between a neutral position and an actuation position. The push-button device (1) is characterized according to the present invention in that a flexible cable device (3) for signal transmission is arranged between the push button (6) and the technical system (2).

Abstract: A dome sheet structure of a mobile communication terminal may include: a metal dome covering a contact point printed on a printed circuit board; and a light guide film disposed on the metal dome. The light guide film may be bonded with the metal dome in a bonding area, and the bonding area may be an area between two concentric circles having different diameters and centered at a center of the metal dome.

Abstract: Provided is a button lighting structure that includes: a plurality of button members (5) arranged in a matrix with intervals; and light-emitting element (6) disposed in the interval of the plurality of button members (5). The button lighting structure includes button cover member (7) including plate-like portion (11) having a plurality of openings (14) into which the plurality of button members (5) is inserted, translucent guide (12) that guides the movement of button members (5) pushed into openings (14), and peripheral wall portion (13) formed along the outer periphery of plate-like portion (11), and configured to irregularly reflect, by plate-like portion (11) and peripheral wall portion (13), light from light-emitting element (6) disposed to face plate-like portion (11). Button member (5) includes translucent sidewall portion (5b) into which the light, that is emitted from light-emitting element (6) and that has passed through guide (12), enters.

Abstract: A pushbutton switch array is proposed which provides a uniform operating surface in which switching units are distinguished from dummy elements only by symbols provided on the switching units and the switching units are realized with few functional parts. The pushbutton switch array has a frame which is covered by a transparent film and includes recesses which selectively have an actuating element accommodated therein for displacement or a dummy element accommodated therein so as to be non-displaceable. The actuating elements are provided with symbols on the surface thereof facing the film and hold a printed circuit board at the opposite end. The printed circuit board carries a switch element that cooperates with a contact element on an opposite base plate. The transparent film, which completely covers the frame along with the actuating elements and the dummy elements, provides a continuous smooth surface.

Abstract: A display device for displaying two graphics is provided. The display device has first and a second light transmitting substrates, each having a front surface and a rear surface, the first substrate including at least one etched region corresponding to a first graphic, and the second substrate including at least one etched region corresponding to an inverse or negative of the first graphic. The display device also has first and second light sources arranged to emit light into the first and second substrates. The first substrate conveys the light to the etched region(s) of the first substrate which then scatters light towards the user. The second light source is behind the second substrate and emits light through both substrates towards the user. When the first light source is illuminated only the first graphic is displayed, and when the second light source is illuminated only the second graphic is displayed.

Abstract: The present invention discloses a laptop keyboard structure, comprising a base board, a membrane functioning as keys, silica gel keys, scissor-switches and keycaps, wherein the silica gel keys are directly attached to the base board, the keycaps are connected to the base board via the scissor-switches, and beneath the base board is disposed with the membrane, which is arranged with apertures for computer assembly. As the membrane provided in the invention is disposed beneath the base board, structure bores are not required to be arranged on the membrane to cooperate with the key slots, so that fewer structure bores are needed and the fabrication of the membrane is further simplified.

Abstract: A keyboard may be generally illuminated while also providing for key-specific illumination of one or more particular keys. The keyboard may be generally illuminated using any configuration of any number of suitable illumination sources. The keyboard may selectively illuminate any key or keys together with or apart from the general illumination of other keys. The keyboard may also variably illuminate certain keys to aid the user in navigating the keyboard.

Abstract: An illumination-type push button device, including a light source portion and an optical member in which one or more lens portions each made of an outgoing surface on a front side and an incident surface on a back side are formed, the optical member configured to receive, from the incident surfaces, light emitted from the light source portion, and to emit the incident light to an outside of the device from the outgoing surfaces, wherein in the outgoing surface of one of the lens portions of the optical member, a single convex portion is formed, the single convex portion being convex in a light exit direction, and in the incident surface of one of the lens portions of the optical member, a plurality of convex portions are formed, the plurality of convex portions being convex reverse to the light incident direction, and smaller than the convex portion of the outgoing surface.

Abstract: A luminous press key module includes: a key cap; a base plate disposed under the key cap and formed with a base plate opening; a circuit unit disposed between the base plate and the key cap; a restoring unit disposed between the key cap and an upper surface of the circuit unit and abutting against the key cap; and a luminous unit including a luminous element disposed on a lower surface of the circuit unit opposite to the upper surface of the circuit unit.

Abstract: An electrically conductive structure of a micro switch capable of letting users know about the reciprocal movement of a switch button, comprising a base, having an electrode module installed in a containing groove formed at the top of the base; an axis cylinder slidably installed in the containing groove; a conical sleeve made of a soft high temperature resisting material and disposed between the axis cylinder and the electrode module; a metal conductive bump formed at the top of the conical sleeve and driven by the axis cylinder to compress and release the conical sleeve to connect and disconnect the electrode module, and the axis cylinder moves reciprocally to produce a hand-pressing feeling, and the containing groove has as sheathe made of a soft high temperature resisting material to block external liquid from entering into the containing groove to improve the service life of the switch.

Abstract: A lighting module is adapted to an electronic device. The electronic device includes a light transmitting portion. The lighting module comprises a light source and a microstructure. The light source is disposed in the electronic device, and the light source includes a light emitting surface facing the light transmitting portion. The microstructure is disposed between the light emitting surface of the light source and the light transmitting portion.

Abstract: A mounting structure of a handle switch device with which a panel can be replaced by manipulating fasteners for fastening two outer casings of the handle switch device together. A rear casing is temporarily mounted to an inner casing that is mounted to a handle pipe, engagement pieces of a design panel are inserted through through holes of a front casing, and the front and rear casings are fastened together by mounting screws, thereby completing assemblage of the handle switch device. To replace the design panel, the mounting screws are loosened to bring them into a half-engagement state and the front casing is displaced toward a driver side to disengage projection ribs of the inner casing from the through holes. Next, the design panel is dismounted from the front casing, a new design panel is mounted to the front casing, and the mounting screws are tightened.

Abstract: A keyboard equipped with illuminated keycaps mainly includes a keyboard portion and a plurality of lighting units. The keyboard portion includes a circuit board with a plurality of keyboard command portions, a plurality of keycaps respectively corresponding to the keyboard command portions and a plurality of elastic support members located between the circuit board and keycaps are depressed by the keycaps to trigger the keyboard command portions. The keycaps and elastic support members form a light emitting zone. The lighting units correspond respectively to each of the keycaps. Each of the lighting units includes a light emitting chip located on the circuit board, a package layer covering the light emitting chip and a light mask layer locally disposed on the package layer to mask light from the light emitting chip towards the abutting keycap such that the light is confined to generate illumination merely in the light emitting zone.

Abstract: There is provided a key switch structure including: a plate shaped key top; a link mechanism supporting the key top such that the key top can be depressed; a membrane sheet comprising a contact point portion; a back plate supporting the link mechanism and adhered to the membrane sheet; a plurality of holder members insert molded onto the back plate and supporting the link mechanism; and a resilient member provided between the key top and the membrane sheet, the resilient member being compressed by depressing of the key top and pressing the contact point portion to make a continuity.

Abstract: In a push-button switch, a mark for conveying information to a user is disposed on a portion of a front surface of a push-button for operating a switch main body. A light-guiding plate is disposed between the switch main body and the push-button. A mark diffusing portion that diffuses injected light is disposed on a portion of the light-guiding plate that faces the mark. A mark light source portion injects light into the light-guiding plate so as to be directed toward the mark diffusing portion.

Abstract: The present invention relates to a key structure and a keyboard having the same. The key structure includes a seat, a conductive membrane disposed on the seat, a scissor assembly, a light source, and a cap. The seat has a plurality of protruding hooking portions. At least one conducting section is defined on the conductive membrane away from the central portion thereof. The collapsible scissor assembly is arranged between the seat and the cap. The key structure has at least one protrusion arranged above the corresponding conducting section. A rubber element having a hole formed on the top portion thereof is disposed centrally on the conductive membrane. The light source is arranged beneath and covered by the rubber element. The cap is disposed on the scissor assembly. The protrusion may be arranged on the side portion of the scissor assembly or the undersurface of the cap.

Abstract: A locally illuminated keycap is located in a keyboard. The keyboard includes a lighting unit to project light to the keycap. The keycap includes at least one top edge to form an opaque press surface, at least one bottom edge located below the press surface to form a light incident surface to receive light, and at least one transparent light emitting surface connecting to the top edge and bottom edge to emit light. The press surface and light emitting surface form an inclined angle between them greater than 90 degrees. The press surface, light incident surface and light emitting surface jointly form a light retaining zone. Light generated by the lighting unit projects to the light incident surface and enters the light retaining zone, and is masked by the opaque press surface to emit locally through the transparent light emitting surface.

Abstract: A switch module is provided with a circuit substrate that has a metal dome sheet mounted on a surface thereof which is arranged in opposition to a key substrate, a light guiding sheet that is arranged between the key substrate and the circuit substrate, an LED, and a reflector that makes the light emitted from the LED incident into the light guiding sheet from an end thereof, wherein key parts are able to be illuminated by the switch module. At an inner side of the reflector in the light guiding sheet, there is formed a printed pattern of white ink for scattering light on an optical path of the light which transmits through a first surface from the vicinity of an edge portion of the reflector.

Abstract: A press key includes: a base unit having a metal plate; a position-limiting unit formed with a through hole, the metal plate and the position-limiting unit defining an accommodating space therebetween; a keycap movable between a raised position and a pressed position and including a cap body that corresponds in position to the through hole, and a flange member that extends outwardly from and around the cap body and that abuts against the position-limiting unit when the keycap is at the raised position; and an elastic restoring unit including a scissors-type lever that is connected pivotally to the keycap and the position-limiting unit.

Abstract: A button device comprises: a circuit board; a tact switch disposed on the circuit board, wherein the tact switch has a pressed surface; a light source disposed on the circuit board; and a resilient button capable of sliding relative to the circuit board. The resilient button includes a pressed portion having a projection surface and a light guide column connected to the pressed portion and directing light toward the projection surface. The light guide column includes a light receiving surface facing the light source with a certain distance apart and a touchable portion apart from the pressed surface with a certain distance used for touching the tact switch.

Abstract: A button assembly for displaying an illuminated symbol with a locking ring having an outer surface. A solid light guide is positioned within and spaced apart from the locking ring. The light guide has a top surface for displaying an illuminated symbol and a bottom surface with a light receiving member having a refracting surface with a first lens member for receiving and directing light to the top surface of the light guide. A resilient sealing member is mounted on the locking ring and interconnects the locking ring and the light guide. The sealing member has an unsupported portion that facilitates movement of the light guide relative to the locking ring.

Abstract: A key assembly for an electronic device having a one-piece keycap and an electronic device having such a keycap are provided. In accordance with one embodiment, there is provided a key assembly for use in an electronic device, comprising: a keycap having a plurality of rigid key portions separated by mechanically deforming portions; and a flexible member having opposed first and second sides, the first side having a plurality of key stems which are attached to the plurality of key portions, the second side having a plurality of actuators for actuating dome switches of the electronic device.

Abstract: A backlight module is used in a lighting keyboard. The backlight module includes a light guiding plate and a masking. The masking is disposed on the light guiding plate. The masking includes a support layer, a cover layer and a reflective layer. The support layer includes a first surface and a second surface opposite to the first surface. The cover layer is disposed on the first surface. The cover layer includes a first opening. The reflective layer is disposed on the second surface and faces the light guiding plate for reflecting light emitted from the light guiding plate, so as to enhance lighting efficiency on the first opening. The reflective layer includes a second opening. A shape and a position of the second opening are respectively corresponding to a shape and a position of the first opening.

Abstract: A mobile terminal is provided. The mobile terminal has a case, a top button located in a surface of the case, the top button including a light blocking part and a light transmitting part formed at a circumferential portion of the light blocking part, the top button having a front side exposed through the surface of the case and back side opposite the front side, a metal dome arranged at the back side of the top button, the metal dome having a projected center, an actuator configured to press the projected center of the metal dome to deform the metal dome when the top button is pressed, a circuit board having the metal dome seated on a side thereof, a light source mounted at the circuit board and a light guide layer configured to direct the light of the light source toward the surface of the case.

Abstract: A keyboard includes a membrane circuit board, a luminous key, a light-emitting element and a plastic film layer. The luminous key has a keycap with a light-transmissible part. The luminous key is configured for triggering a membrane switch of the membrane circuit board. The light-emitting element is disposed on the membrane circuit board and arranged under the light-transmissible part for emitting a light beam. The plastic film layer is disposed on the membrane circuit board, and includes a convex structure, which is integrally formed with the plastic film layer. The light-emitting element is enclosed by the convex structure. The convex structure has an opening aligned with the light-emitting element. The keyboard of the present invention has enhanced production yield and reduced light leakage.

Abstract: An electronic apparatus includes a cover unit, a touchpad unit and a contact member. The cover unit has a window through which an operation section is exposed and the window has an inwardly inclined peripheral surface as an inclined portion. The touchpad unit is arranged substantially in the window. The contact member is secured on the touchpad unit and is exposed through the window. The contact member has a joining part for the cover unit. The joining part of the contact member forms a contiguous inclined surface together with the inclined portion of the cover unit.

Abstract: An illuminated keyboard includes plural keys, a base plate, an illumination module, plural light guide tubes, and at least one optical coupling element. The illumination module is used for emitting plural light beams. The plural light guide tubes are arranged between the plural keys and the base plate for guiding the light beams to the plural keys. The optical coupling element is arranged between the illumination module and the plural light guide tubes for guiding the light beams to the plural light guide tubes. In such way, the illuminated keyboard can be illuminated.

Abstract: A keyboard includes a membrane circuit board, a luminous key, a light-emitting element and a plastic film layer. The luminous key has a keycap with a light-transmissible part. The luminous key is configured for triggering a membrane switch of the membrane circuit board. The light-emitting element is disposed on the membrane circuit board and arranged under the membrane circuit board for emitting a light beam. The plastic film layer is disposed on the membrane circuit board, and includes a convex structure, which is integrally formed with the plastic film layer. The light-emitting element is enclosed by the convex structure. The convex structure has a light-transmissible zone aligned with the light-emitting element. In such way, the keyboard of the present invention has enhanced production yield and reduced leak leakage.

Abstract: An illuminating push-button device includes a key-top part having a key-top surface and a first protrusion that protrudes from a back side of the key-top surface. The device also includes a key rubber part made of a transparent or semi-transparent elastic material and having a second protrusion that receives the first protrusion, the second protrusion being oriented in a common direction as the first protrusion. A switching device is included that opposes the second protrusion and is configured to be actuated in response to the key-top part being depressed. A light-source element emits light from a light-emitting surface and cooperates with a light-blocking sheet disposed between the light-source element and key rubber part and covers at least a portion of the light-emitting surface of the light-source element and has a loose hole through which the second protrusion of the key rubber part is passed.

Abstract: A switch assembly is provided that in one aspect provides a switch knob that can move in up to five directions by using a plunger element that moves with respect to an actuation plate such that tilting the knob in any of four directions uses the plate to activate underlying domes whereas pressing the knob towards the assembly provides a fifth function by moving the plunger element with respect to the plate and thus activating a central dome beneath the plunger element. In another aspect, the switch assembly enables a larger area of illumination on an illuminated film by interposing a light pipe between an actuation dome and the film, the light pipe also serving as a plunger element to enable touch actuation by pressing the film, moving the plunger towards the dome and activating the dome.

Abstract: A keypad assembly including a dome configured to operatively engage a switch sensor; a dome overlay guide operatively coupled by to the dome; a key corresponding to the dome and configured to operatively engage the dome; and a light emitting source, configured to emit light. The dome overlay guide is configured to receive the light emitted by the light emitting source and direct the received light toward the keys.

Abstract: Illuminated button assemblies are provided that can be secured to a mounting surface by any of a locking member such as a snap tab, a securing member such as a nut, or a combination of both. The securing member is adapted to enclose the locking member when it is fully secured. A variety of illumination assemblies are similarly sized and shaped such that they can be interchanged within the same assembly housing. A switch and the illumination assembly are directly connected to the assembly housing without the need for a lamp holder.

Abstract: An improved control panel assembly is easy to fabricate, and easy to recognize a selected operation condition, and a laundry device with the same. The control panel assembly for a laundry device includes a button assembly having a plurality of buttons provided in correspondence to operation conditions, a control panel having a plurality of mounting holes for exposure of the plurality of buttons therethrough from a front thereof, and a frame on a rear of the control panel, the frame joining the plurality of buttons as one unit, and preventing pressing interference between adjacent buttons.

Abstract: A plurality of light-transmittable or transparent keycaps is disposed on a luminous keyboard. Between a bottom surface of each keycap and a circuit board, printed layers with various patterns corresponding to each keycap are disposed therebetween. The pattern of each printed layer is composed by a light-transmittable section and an opaque section. A light source module, which is composed by a light guide plate and a light emitting diode, can further be added to the luminous keyboard, under each keycap, so as to provide a self luminous light source for the keyboard. With the light-transmittable or transparent keycaps, the patterns or texts of the printed layers can be shown.

Abstract: A illuminant keyboard device includes a bottom frame having a plurality of latch parts, a plurality of keying units disposed on the bottom frame, a membrane switch interposed between the bottom frame and the keying units, a light guide plate interposed between the membrane switch and the bottom frame, a least a light source disposed on predetermined position of the light guide plate, a plate interposed between the membrane switch and the light guide plate and a light-shielding plate interposed between the membrane switch and the keying units. The light guide plate has a plurality of first holes and the plate has a plurality of second holes, the diameter of each of the first holes is larger than the diameter of each of the second holes.

Abstract: A key structure includes a keycap, a scissors-type connecting element, a membrane module, a light-emitting element and a base plate. The light-emitting element is used for emitting light beams. The keycap has a protrusion structure for blocking the light beams and preventing the light beams from leaking out through the gap between said keycap and said base plate. The base plate has a slot corresponding to the protrusion structure. When the keycap is depressed, the membrane module is pressed by the protrusion structure to be subject to deformation, so that a deformed part of the membrane module is inserted into the slot of the base plate. In such way, the hand feel of depressing the keycap is not adversely affected.

Abstract: In an embodiment, there is disclosed a button for an operator control arrangement, wherein the button has a shaped body which is composed of a light-guiding material, the shaped body including an operating direction, a functional side which has a light entry region and an operating region, an operator control side which has a light exit region, a resilient projection which is integrally formed with the shaped body transverse to the operating direction, a force limiting element which is integrally formed with the shaped body transverse to the operating direction and is configured to absorb an excessive operating force, and a first projection which is integrally formed with the shaped body. Other embodiments of a button, an operator control arrangement and a domestic appliance are also disclosed.

Abstract: A miniature circuit breaker has a housing formed of a housing base of insulating material and a pot-like housing cover, which is or can be positioned onto the housing base. Two elongate and flat contact arms are partially embedded in the housing base parallel with respect to one another in terms of their longitudinal direction. A fixed contact is arranged at an inner end of a first one of the contact arms. A bimetallic snap-action disk with a free end, forming or bearing a moving contact, is fitted at an inner end of the second contact arm at a fastening point. The fastening point, the moving contact and the fixed contact are in this case on an axis which is parallel to the longitudinal direction of the contact arms.

Abstract: The invention generally relates to button caps used on electronic devices. It more particularly relates to button caps that enhance the user experience of devices such as smartphones, tablets and the like. In one aspect the invention is a raised button cap for a concave (or flat) button such as the Home Button on smartphones and tablets. The button cap includes adhesive backing for attachment to the button, a printable substrate and a clear magnifying dome covering the substrate, combined into a unit that when adhered to concave button provides a raised aspect. The button is preferably made from tough self-healing materials, and the flat substrate is suitable as a base for either printed images, preferably customizable, and/or small decorative objects such as jewels, small insects or the like.

Abstract: Disclosed is a keypad assembly including a light guide panel, light, at least one light extracting pattern provided on the light guide panel so that light propagating inside the light guide panel is directed out of the light guide panel, a switch board having at least one switch; and at least one light source for coupling light to the inside of the light guide panel, wherein the light guide panel has a thickness of 0.03-0.6 mm.