CHANGSHU SUNREX TECHNOLOGY CO., LTD.
|CHANGSHU SUNREX TECHNOLOGY CO., LTD. Patent applications|
|Patent application number||Title||Published|
|20150129406||KEYBOARD DEVICE - A keyboard device includes a base seat, a circuit board including a plurality of switches, a press key membrane connected to a periphery of the base seat to forma sealed space to enclose the circuit board therein, and a plurality of resilient members. The press key membrane includes a plurality of protrusion units defining a plurality of press zones on the press key membrane. Each of the resilient members is disposed between the press key membrane and a respective one of the switches for deforming to close the respective one of the switches when a respective one of the press zones is pressed and for restoring to open the respective one of the switches when the respective one of the press zone is released.||05-14-2015|
|20140262719||KEY STRUCTURE - A key structure includes a bottom board having first holes, a membrane circuit board disposed on the bottom board and having second holes that are registered with the first holes, an elastic layer disposed on the membrane circuit board and having third holes that are registered with the second holes, a securing frame, and a key cap. The securing frame is disposed on the elastic layer and has securing members, each extending through a registered set of the third, second and first holes and having an abutting portion abutting against a bottom side of the bottom board to secure the elastic layer, the membrane circuit board, and the bottom board together and closing liquid-tightly the third, second, and first holes.||09-18-2014|
|20140246297||PRESS KEY DEVICE - A press key device includes: a key cap, a base plate, a frame, and a restoring unit. The key cap includes a cap portion and a fin portion protruding from the cap portion. The base plate is disposed under the key cap and is formed with a first perforation which has opposite first and second ends in a first horizontal direction. The frame is disposed on the base plate and has a frame portion and a groove which has a limit groove portion. The frame is movable from a first position to a second position and further to a third position so that the fin portion is retained in the limit groove portion to restrain downward movement of the key cap.||09-04-2014|
|20140233258||BACKLIGHT MODULE - A backlight module includes: a light guiding plate; at least one light guiding point which is formed on a bottom surface of the light guiding plate; an upper light-permeable thin film disposed on a top surface of the light guiding plate; a lower light-permeable thin film disposed on the bottom surface of the light guiding plate and opposite to the upper light-permeable thin film; and a luminous element from which light beams are incident to the light guiding plate. The upper and lower light-permeable thin films respectively have refractive indices lower than that of the light guiding plate so that a total internal reflection of the light beams occurs between the upper and lower light-permeable thin films.||08-21-2014|
|20140190804||LUMINOUS PRESS KEY MODULE - 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.||07-10-2014|
|20140186085||PRESS KEY - A press key includes: a base plate; a key cap including a top plate and a frame, the frame having a frame wall that surrounds a frame opening and that is formed with upper journal retention members and upper slide retention members; and a restoring unit including first and second support members. The first and second support members have upper end portions and lower end portions. The first and second support members extend through the frame opening. The upper end portion of the first support member is pivotally retained between the upper journal retention members and the top plate. The upper end portion of the second support member is slidably retained between the upper slide retention members and the top plate.||07-03-2014|
|20140151211||LUMINOUS KEYBOARD - A luminous keyboard includes: a plurality of key caps; a light guiding plate disposed under the key caps; a reflector disposed under the light guiding plate; a masking layer disposed between the key caps and the light guiding plate; a membrane circuit unit disposed under the key caps and on the masking layer; and a luminous unit having a conductive lead, and an illuminant electrically connected to the conductive lead. The conductive lead is made of a material including a conductive polymer gel and a conductive powder and is formed directly on one of the reflector, the masking layer and the membrane circuit unit.||06-05-2014|
|20130234943||Keyboard Apparatus Having a Backlight Function - A keyboard apparatus includes: a keyboard module having a plurality of keys; and a backlight module assembled with the keyboard module. The backlight module includes a light emitter for emitting light, a first light guide plate disposed adjacent to the light emitter and provided with a first reflective member that is aligned with one of the keys in a vertical direction for reflecting the light toward the one of the keys, and a second light guide plate disposed adjacent to the light emitter, provided with a second reflective member that is aligned with another one of the keys in the vertical direction for reflecting the light toward the another one of the keys, and disposed under the first light guide plate.||09-12-2013|
|20120305376||PRESS KEY - A press key includes: a circuit module; a keycap disposed above the circuit module; and an elastic member disposed between the circuit module and the keycap, and including a bowl portion and a leg portion. The bowl portion has a width larger than that of the leg portion and includes a top open end facing the keycap, a bottom wall opposite to the top open end, a first contact extending upwardly from the bottom wall to contact the keycap when the keycap is pressed, and a second contact extending downwardly from the bottom wall to contact the circuit module when the keycap is pressed. The leg portion extends downwardly from the bottom wall and surrounds the second contact.||12-06-2012|
|20120298496||PRESS KEY AND KEYBOARD - A press key includes: a keycap made of metal; a base board; a circuit board disposed on the base board; an insulating film disposed on the circuit board; and an elastic member disposed between the insulating film and the keycap, the elastic member being pressed toward the circuit board when the keycap is pressed, and being resilient to return the keycap to an original position when the keycap is released. A keyboard including a plurality of the aforesaid press keys is also disclosed.||11-29-2012|
|20120298495||KEYBOARD - A large key for a keyboard includes a keyboard base, a circuit board, a keycap, an elastic member, and a linkage assembly. The linkage assembly is disposed between the keyboard base and the keycap, and includes: a first link unit having two first link levers that are spaced apart, each of the first link levers being connected between the keycap and the keyboard base; and a second link unit that has two second link levers that are spaced apart, each of the second link levers intersecting one of the first link levers and being connected between the keycap and the keyboard base. The first link unit has a first connection portion connected between and formed as one piece with the first link levers so that the two first link levers can move simultaneously.||11-29-2012|
|20120211272||THIN FILM CIRCUIT BOARD DEVICE - A thin film circuit board device includes a multi-layered circuit unit having an upper circuit layer formed with an upper circuit having at least one first contact part, a lower circuit layer formed with a lower circuit having at least one second contact part disposed beneath the first contact part, and an insulating layer disposed between the upper and lower circuit layers and having at least one through hole. One of the upper and lower circuit layers has at least one preformed protruding portion that protrudes into the through hole toward the other one of the upper and lower circuit layers. One of the first and second contact parts is disposed on the preformed protruding portion so as to be in constant contact with the other one of the first and second contact parts.||08-23-2012|
Patent applications by CHANGSHU SUNREX TECHNOLOGY CO., LTD.