Abstract: An illumination control assembly for decaying of a white light emitting diode comprising a light source controller for controlling the illumination of the white light emitting diode; a driving control circuit installed with an electromagnetic protection module, a pulse width modulation module, a current control unit which is connected to the light source controller for driving the white light emitting diode; and a white light emitting diode display including at least one white light emitting diode; the white light emitting diode being connected to a light source controller for controlling the illumination of the white light emitting diode and for transferring electronic signals so that the pulse width modulation module adjusts output from the current control unit to retain the illumination of the white light emitting diode with a constant value;

Abstract: A displaying gain structure for an electronic nameplate includes a circuit board, a magnet assembly and a cover plate. The circuit board includes an LED portion on its front side, and a control element, an information access port, a battery holder and a switch on its back side to control operation of the LED portion. The magnet assembly includes a magnet unit and a metal sheet disposed on the back side of the circuit board, and is attached to clothes of a user by attraction between the magnet unit and the metal sheet such that information displayed by the LED portion is observable. The cover plate is mounted to the LED portion by an intermediate member and spaced apart from the circuit board by a distance. The cover plate further includes an optical display interface to enhance its optical gain.

Abstract: An indication brand assembly comprises a first frame and a second frame; an indication brand having a first retaining frame and a second retaining frame at a backside thereof; the second retaining frame being formed with an embedding groove; an adaptor; an elastic unit enclosing and retaining to the adaptor; a supporting frame connected to the first retaining frame by using an adaptor; the supporting frame having an embedding groove for receiving one end of a first frame; wherein by the extension or compression of the elastic unit, the indication brand can be engaged with the first frame and the second frame easily The elastic unit is a spring so that the supporting frame can move upwards and downwards. The adaptor is a screw or a rivet for engaging with the elastic unit. The supporting frame and second retaining frame have respective embedding grooves.

Abstract: An indication brand comprises a frame having at least one embedding grooves at a front side and at least one embedding groove at a backside thereof; the number of the embedding grooves at one side being an even number and the number of the embedding groove at another side being odd number; at least one display panel embedded into the embedding groove of the frame; the display panel being installed with at least one indication symbol; at least one retaining seat installed with a buckling groove; and the retaining seat being embedded into the embedding groove of the frame; and wherein the indication brand is suitable for the display panels with even number or odd number.

Abstract: A business placard comprises: an acrylic panel having a U shape cross section; a lower end of each of two lateral sides of the acrylic panel being protruded downwards with connecting block; a back plate made of acrylonitrile-butadience styrene plastics; each end of two lateral sides of the back plate having a reduced section corresponding to the reduced section of the acrylic panel; and a light source placed within the back plate. In assembly, the reduced section of the acrylic panel is combined to the reduced section of the back plate by melting the connecting block using supersonic technology.

Abstract: An LED advertise board for alerting people with flash LED lamps is disclosed. The LED advertise board comprises a box body; a substrate received in the box body; the substrate being installed at an interior of the box body; an upper side of the substrate having a lens which is embedded into a first groove of the box body; two sides of the substrate having respective LED lamps; the substrate being formed with a matrix LED lamp for displaying characters; one side of the substrate being installed with a power receptacle for being connected to a power supply; a network receptacle being formed aside the power receptacle for being connected to an external computer; each of the two sides of the box body having a lateral cover which is locked to the ring hook. In emergency, the LED lamps at two side flash to alert the user.

Abstract: A sign comprises a base cover, an LED circuit board, an upper cover and a matte-surface word board. The upper cover is provided with a decorative groove that will be changed when the word is changed. The word on the LED circuit board is composed of a multitude of LED light emitters, which can be switched one by one, thereby reducing the maintenance time and cost. The matte-surface word board can diffuse the light emitted therein and conceal the circuit board therein. The LED circuit board can change the flashing rate of the LED light emitters and simulate the effect of neon lights.

Abstract: A key management system comprises a sleeve; a plug cover having a part embedded into a rear end of the sleeve; an encoding chip connected to a positive conductive cambered sheet and a negative conductive cambered sheet; an insulating seat having an annular post; a conduit installed at a front side of the insulating seat; a retaining threaded ring installed around an outer periphery of the insulating seat; a front end of the conduit being inserted into the through hole of the retaining threaded ring; an insulating rubber plug installed at a front end of the conduit; a conductive head installed at a front end of the insulating rubber plug; and a conductive rod passing through the positive conductive cambered sheet, the insulating seat, the negative conductive cambered sheet, the conduit, the insulating rubber plug, and the conductive head.

Abstract: A key management system comprises a sleeve; a plug cover having a part embedded into a rear end of the sleeve; an encoding chip connected to a positive conductive cambered sheet and a negative conductive cambered sheet; an insulating seat having an annular post; a conduit installed at a front side of the insulating seat; a retaining threaded ring installed around an outer periphery of the insulating seat; a front end of the conduit being inserted into the through hole of the retaining threaded ring; an insulating rubber plug installed at a front end of the conduit; a conductive head installed at a front end of the insulating rubber plug; and a conductive rod passing through the positive conductive cambered sheet, the insulating seat, the negative conductive cambered sheet, the conduit, the insulating rubber plug, and the conductive head.

Abstract: A message sign alert device including a housing having a planar message display window and a first visual alert window positioned on a periphery of the planar message display window. Within the housing are a message display section, a first visual alert section, and a control unit that operates the first visual alert section and the message display section for providing a visual attraction to the display of a message on the message display section. A planar display unit in the message display section includes a plurality of light emitting message elements and projects through the planar message display window at a substantially normal angle to the planar message display window. The first visual alert section has at least one light emitting element positioned adjacent to the first visual alert window for projecting through the first visual alert window at an oblique angle relative to the planar message display window.