Abstract: A two-step charger includes an AC/DC power supply, a transformer, a compensator, a controller, a comparator and an isolating controller. The comparator detects whether a battery is connected to the transformer. If so, a command voltage of the charger is set at a high level. Since the battery voltage is lower than the command voltage, the controller orders the compensator to send out a compensating current. The current entering the primary side of the transformer is increased to promote the output current from the secondary side of the transformer. Once the comparator detects that the battery reaches as high as the charger, the command voltage is adjusted to a low level. The controller orders the compensator to stop outputting the compensating current. Therefore, a larger current can speed up battery charging. Once the battery is fully charged, the charging voltage is lowered to avoid high temperature.

Abstract: A series surge suppression structure mainly comprises: a circuit board, a ground line and a plurality of galvanization circuits being disposed thereon, a multilayer surge absorption unit being disposed in series on the ground line and the plurality of galvanization circuits; wherein each surge absorption unit is constituted by a pair of chokes with a layered surge absorption element connected in parallel between one end of either choke and the ground line; a power connection terminal, positioned on one side of the circuit board and electrically connected to a final end of the multilayer surge absorption unit; and a protection terminal, positioned on another side of the circuit board and electrically connected to a final end at another side of the multilayer surge absorption unit; whereby, the protection terminal can be used to connect with a communication circuit or an electric facility and the power connection terminal is used for connecting with an external wire so as to form a multilayer surge absorption p

Abstract: An exemplary wafer level package comprises a semiconductor wafer with a plurality of semiconductor chips of perfect polygonal shapes thereon. A circuit-free area is defined over the semiconductor wafer to electrically isolate the semiconductor chips. A dam structure is substantially formed over the circuit-free area, wherein a portion of the dam structure formed around an edge of the semiconductor wafer is formed with a plurality via holes therein. A transparent substrate is formed over the semiconductor wafer, defining a plurality of cavities between the semiconductor chips and the transparent substrate, wherein the transparent substrate is supported by the dam structure.

Abstract: An inductance is provided. The inductance includes a metal core, a coil and a soft-magnetic colloid element. The coil is wound around the metal core. The soft-magnetic colloid element surrounds the coil.

Abstract: A transformer is provided. The transformer includes at least a high voltage coil, at least a low voltage coil and a soft-magnetic colloid element. The soft-magnetic colloid element is disposed between the high voltage coil and the low voltage coil.

Abstract: A liquid crystal display is provided. The liquid crystal display including a first substrate having thereon a plurality of gate lines and data lines intersected to each other, so as to form a pixel surrounded thereby, a second substrate counter to the substrate, a common electrode disposed on the first substrate and having a first portion and a slit corresponding to one of the data lines and a second portion located inside the pixel, and a pixel electrode disposed between the first portion and the second portion of the common electrode, and adjacent to the first portion. The first portion of the common electrode and the pixel electrode have a first distance d1, the second portion of the common electrode and the pixel electrode have a second distance d2, and the first distance d1 is not equivalent to the second distance d2.

Abstract: An illumination system including at least one first light source, a prism and a light uniforming device is provided. The first light source is capable of providing a first beam. The prism is disposed on a transmission path of the first beam, and has four first facets. Two of the first facets are opposite to each other, and the other two first facets are opposite to each other. The first beam passes through one of the first facets and is totally internally reflected by another first facet opposite to the one of the first facets. The light uniforming device is disposed on the transmission path of the first beam from the another first facet. The cost of the illumination system is lower, and the illumination system has high flexibility of the light source design and can provide illumination with high brightness.

Abstract: An illumination system including at least one first light source, a prism and a light uniforming device is provided. The first light source is capable of providing a first beam. The prism is disposed on a transmission path of the first beam, and has four first facets. Two of the first facets are opposite to each other, and the other two first facets are opposite to each other. The first beam passes through one of the first facets and is totally internally reflected by another first facet opposite to the one of the first facets. The light uniforming device is disposed on the transmission path of the first beam from the another first facet. The cost of the illumination system is lower, and the illumination system has high flexibility of the light source design and can provide illumination with high brightness.

Abstract: An optical engine including a beam splitting and combining system, which includes a first polarizing beam splitting (PBS) unit, a dichroic unit and a second PBS unit, is provided. A first color beam is reflected by the first PBS unit, is reflected by a first light valve, and passes through the first PBS unit sequentially. A second color beam passes through the first PBS unit, is reflected by a second light valve, and is reflected by the first PBS unit sequentially. The dichroic unit is disposed on an optical path of the first and second color beams. The second PBS unit is capable of allowing a third color beam to travel to a third light valve and allowing the third color beam reflected from the third light valve to travel to the dichroic unit. The dichroic unit is capable of combining the first, second and third color beams.

Abstract: An LCD device has an LCD panel having a peripheral region, a heating layer disposed on the LCD panel, and two first flexible printed circuits (FPCs) electrically connected to the heating layer, and adapted to transmit voltage to the heating layer so that the heating layer can generate heat. At least one of the FPCs has a wide portion and a narrow portion being fixed in the peripheral region of the LCD panel and being connected to the heating layer.

Abstract: An illumination system for providing an illumination beam to a light valve is provided. The illumination system includes a light source, a light integration rod, a color wheel, a first focusing unit and a second focusing unit. The light source is capable of generating the illumination beam, and the light integration rod is disposed on the transmission path of the illumination beam. The first focusing unit is disposed between the integration rod and the color wheel and is capable of focusing the illumination beam onto the color wheel. The second focusing unit is disposed between the color wheel and the light valve and is capable of focusing the illumination beam onto the light valve.

Abstract: A projection apparatus including an illumination system, a reflective light valve and an imaging system is provided. The illumination system emits an illumination beam. The reflective light valve is disposed on a transmission path of the illumination beam. The imaging system includes a first lens group, a polarization beam splitter and a second lens group. The first lens group is disposed on the transmission path of the illumination beam between the illumination system and the reflective light valve. The polarization beam splitter is disposed on the transmission path of the illumination beam between the illumination system and the first lens group. The polarization beam splitter permits the illumination beam to pass through and travel to the reflective light valve. The reflective light valve modulates the illumination beam to an image beam traveling to the polarization beam splitter. The polarization beam splitter reflects the image beam to the second lens group.

Abstract: A color filtering device including a color filter, a plurality of polarization beam splitting units, a plurality of reflecting units, and a plurality of wave plates is provided. The color filter has a plurality of filtering parts and a plurality of light shielding parts alternately arranged thereon. Each of the polarization beam splitting units is disposed in front of one of the filtering parts and makes an angle with a corresponding filtering part. Each of the reflecting units is disposed in front of one of the light shielding parts and makes an angle with a corresponding light shielding part. Each of the wave plates is substantially parallel to one of the filtering parts. Each of the polarization beam splitting units is disposed between a pair of a wave plate and a filtering part. The color filtering device has both color filtering function and polarization conversion function.

Abstract: A lamp driving method for a projection apparatus is provided. The projection apparatus has a light valve and a lamp. The lamp driving method includes adjusting a brightness of the lamp to different values according to multiple states of the light valve. The lamp driving method improves the energy efficiency of the projection apparatus.

Abstract: An in-plane switching liquid crystal display, especially relative to an in-plane switching liquid crystal display with the absence of an overcoat layer is provided. The in-plane switching liquid crystal display having a first substrate, a second substrate and a liquid crystal layer sandwiched therebetween, a plurality of gate lines and data lines disposed on the first substrate, a counter electrode disposed on the second substrate and corresponding to one of the data lines, a pixel having a pixel electrode, a pair of shielding electrodes and a common electrode also disposed on the first substrate. Through the arrangement of shielding electrodes as well as the counter electrode, the coupling effect of the applied pixel voltage on the data lines is shielded.

Abstract: A method is provided for modifying a circuit containing a plurality of electrodes, within a substrate, comprising the steps of: (a) selecting at least two electrodes for making a connection; (b) removing materials covering the electrodes with a focused ion beam (FIB) or a laser to form contact holes for respectively exposing the electrodes; (c) depositing in the contact holes a conductive material for forming electrically conductive piers, by applying the focused ion beam (FIB) or laser, with gas molecules ejected from a nozzle; (d) disposing an electrically conductive viscid material over each of the electrically conductive piers; and (e) disposing an electrically conductive bridge floor to connect with the electrically conductive viscid material to form an electrically conductive bridge.

Abstract: A clamp in one embodiment includes a flexible base; a bifurcation pivotal about one end of the base; a fastening member pivotal about the other end of the base and including pawls, an opposite projection, and a toothed section formed above; a universal member meshed with the toothed section; a seat rotatably secured to the universal member and adapted to releasably secure to a light; and a flexible ratchet pivotal about the other end of the base. Wrapping the ratchet around a seat post of bicycle by inserting it through the bifurcation and a space between the pawls and one end of the ratchet, pivoting the fastening member toward the seat until one pawl engages the ratchet and the fastening member presses on the base to urge against the seat post, and pivoting the bifurcation to press the bar onto the projection will fasten the seat post.

Abstract: A two-step charger includes an AC/DC power supply, a transformer, a compensator, a controller, a comparator and an isolating controller. The comparator detects whether a battery is connected to the transformer. If so, a command voltage of the charger is set at a high level. Since the battery voltage is lower than the command voltage, the controller orders the compensator to send out a compensating current. The current entering the primary side of the transformer is increased to promote the output current from the secondary side of the transformer. Once the comparator detects that the battery reaches as high as the charger, the command voltage is adjusted to a low level. The controller orders the compensator to stop outputting the compensating current. Therefore, a larger current can speed up battery charging. Once the battery is fully charged, the charging voltage is lowered to avoid high temperature.