摘要:
A halation-free light-emitting diode holder includes a body and a retaining portion. The body has a die holder, which includes a first surface, a second surface, and an opened end. The retaining portion is provided on the second surface. By using the retaining portion, the optical gel in the die holder is blocked from capillary movement up along the second surface. Furthermore, having nano-material layers further formed on the second surface or having the area of the first surface made greater than the area of the opened-end also prevents the optical gel from climbing along the second surface. Thereby, a light halation circling a light pattern of the resultant light-emitting diode is avoided and the light-emitting diode is improved in luminance uniformity.
摘要:
An LED base structure with an embedded capacitor includes a body, at least one pair of metal layers, at least one dielectric layer, and at least two conductive channels. The body is an insulating base. The metal layers are disposed in the body, and the dielectric layer is disposed between the metal layers, so as to form an embedded capacitor. The conductive channels are electrically connected to the metal layers, respectively. The LED base structure is further electrically connected to a resistor for forming a resistor-capacitor delay circuit whereby a phase delay is effectuated whenever AC power is supplied to the LED base structure, so as to control the time for switching on one of two parallel-connected LEDs and, as a result, prevent the LEDs from flashing which might otherwise arise when the LEDs are supplied with AC power.
摘要:
An AC LED structure includes an insulating substrate, an LED set, a first metal layer and a second metal layer. The LED set has a first light-emitting diode and a second light-emitting diode, which are deposited on the insulating substrate and insulated from each other. The first metal layer and the second metal layer commonly have a first profile and serve to electrically connect the first light-emitting diode and the second light-emitting diode in an inverse parallel connection. In virtue of the first metal layer and the second metal layer of the first profile deposited on the first light-emitting diode and the second light-emitting diode, the LED set is allowed to be connected in series or in parallel with another LED set according to practical needs, so as to be able to endure high current density or high voltage operation.
摘要:
The present invention relates to an alternating current (AC) light emitting diode (LED) structure with overload protection, which comprises an AC LED, a heat dissipating unit and an overload protecting unit. The AC LED is thermally connected with the heat dissipating unit, and the overload protecting unit is connected in series between the AC LED and a power source. Thus, when an overload current is inputted to the AC LED structure, the temperature of the overload protecting unit will rise to disconnect the AC LED from the power source. In this way, an open-circuit status can be produced timely in the AC LED structure to block the power input into the AC LED for purpose of protection against overload.
摘要:
An LED base structure with an embedded capacitor includes a body, at least one pair of metal layers, at least one dielectric layer, and at least two conductive channels. The body is an insulating base. The metal layers are disposed in the body, and the dielectric layer is disposed between the metal layers, so as to form an embedded capacitor. The conductive channels are electrically connected to the metal layers, respectively. The LED base structure is further electrically connected to a resistor for forming a resistor-capacitor delay circuit whereby a phase delay is effectuated whenever AC power is supplied to the LED base structure, so as to control the time for switching on one of two parallel-connected LEDs and, as a result, prevent the LEDs from flashing which might otherwise arise when the LEDs are supplied with AC power.
摘要:
A parallel bridge circuit structure and a high-voltage parallel bridge circuit structure are disclosed. The parallel bridge circuit structure includes a first bridge circuit and a second bridge circuit. The first bridge circuit includes a plurality of first diodes, and the second bridge circuit includes a plurality of second diodes. Each of the second diodes is exclusively connected to one of the first diodes in parallel. With the design of the parallel connection between the first bridge circuit and the second bridge circuit, break of the entire circuit caused by a damaged diode is prevented. Moreover, with the aid of the AC signal phase delay circuit structure, the output voltage of the parallel bridge circuit structure can be stable and continuous voltage, while the high-voltage parallel bridge circuit structure includes a plurality of parallel bridge circuit structures so as to endure a high voltage input.
摘要:
An LED structure includes a first substrate; an adhering layer formed on the first substrate; first ohmic contact layers formed on the adhering layer; epi-layers formed on the first ohmic contact layers; a first isolation layer covering the first ohmic contact layers and the epi-layers at exposed surfaces thereof; and first electrically conducting plates and second electrically conducting plates, both formed in the first isolation layer and electrically connected to the first ohmic contact layers and the epi-layers, respectively. The trenches allow the LED structure to facilitate complex serial/parallel connection so as to achieve easy and various applications of the LED structure in the form of single structures under a high-voltage environment.
摘要:
An LED structure includes a first substrate; an adhering layer formed on the first substrate; first ohmic contact layers formed on the adhering layer; epi-layers formed on the first ohmic contact layers; a first isolation layer covering the first ohmic contact layers and the epi-layers at exposed surfaces thereof; and first electrically conducting plates and second electrically conducting plates, both formed in the first isolation layer and electrically connected to the first ohmic contact layers and the epi-layers, respectively. The first trenches or the second trenches allow the LED structure to facilitate complex serial/parallel connection so as to achieve easy and various applications of the LED structure in the form of single structures under a high-voltage environment.
摘要:
A light emitting diode (LED) package and process of making the same includes a silicon-on-insulator (SOI) substrate that is composed of two silicon based materials and an insulation layer interposed therebetween. The two silicon based materials of silicon-on-insulator substrate are etched to form a reflective cavity and an insulation trench, respectively, for dividing the silicon-on-insulator substrate into contact surfaces of positive and negative electrodes. A plurality of metal lines are then formed to electrically connect the two silicon based materials such that the LED chip can be mounted on the reflective cavity and electrically connected to the corresponding electrodes of the silicon-on-insulator substrate by the metal lines. Thus the properties of heat resistance and heat dispersal can be improved and the process can be simplified.
摘要:
A MEMS differential actuated nano probe includes four suspension beams arranged in parallel, a connecting base connecting to the suspension beams, a nano probe. Two of the suspension beams elongate due to thermal expansion to allow the deflection of the probe. By heating the suspension beams at different positions, the MEMS differential actuated nano probe can move in two directions with two degrees of freedom. The deflection of the MEMS differential actuated nano probe can be also achieved in piezoelectric or electrostatic way.