Abstract: A flyback power converter includes a power transformer, a first lossless voltage conversion circuit, a first low-dropout linear regulator and a secondary side power supply circuit. The first low-dropout linear regulator (LDO) generates a first operation voltage as power supply for being supplied to a sub-operation circuit. The secondary side power supply circuit includes a second lossless voltage conversion circuit and a second LDO. The second LDO generates a second operation voltage. The first operation voltage and the second operation voltage are shunted to a common node. When a first lossless conversion voltage is greater than a first threshold voltage, the second LDO is enabled to generate the second operation voltage to replace the first operation voltage as power supply supplied to the sub-operation circuit; wherein the second lossless conversion voltage is lower than the first lossless switching voltage.

Abstract: A photosensitive assembly includes a circuit board. The circuit board has a first surface, a second surface opposite to the first surface, and a first through hole extending through the first surface and the second surface. A photosensitive chip is disposed on the second surface. The photosensitive chip has a photosensitive area and a non-photosensitive area connected to the photosensitive area, the non-photosensitive area is electrically connected to one side of the second surface, and the photosensitive area is exposed from the first through hole. A reinforcing plate is disposed on the first surface. A thermal conductive layer is disposed on the photosensitive chip, and the thermal conductive layer includes a silica gel or a metal.

Abstract: A diffusion assembly for a liquid crystal display includes a diffuser and an optical film. The diffuser has at least one hanging element and a fixing element. The optical film has at least one hole, wherein the at least one hanging element is engaged with the at least one hole of the optical film, and the fixing element is substantially L-shaped and holds the optical film.

Abstract: A backlight module is provided. The backlight module includes a frame, a reflector, a plurality of light sources, at least one fan and at least one air vent. The frame has a lateral plate. The reflector is disposed on the inside surface of the frame. The plurality of light sources are disposed on the reflector. The fan is disposed on the outside surface of the lateral plate. The air vent is formed on the frame and the reflector corresponding to the fan.

Abstract: A backlight module includes a frame, a plurality of light tubes disposed on the frame, an optical sheet, a first light tube fixing component disposed on a side of the frame, and a second light tube fixing component disposed on a bottom surface of the frame. The frame includes a plurality of holes defined on a bottom surface of the frame. The first light tube fixing component is used for fixing the plurality of light tubes on the frame. The first light tube fixing component includes light proof member and a light reflective component. The light proof member is used for blocking light from the plurality of light tubes. The light reflective component is used for reflecting light from the plurality of light tubes toward the optical sheet. The light proof member and the light reflective component are integrally formed.

Abstract: A noise reduction device for use in a backlight module includes a plurality of noise reduction devices, each comprising a main body and an extension portion. The extension portion is adapted to cushion the interface between a lamp holder and a back bezel of the backlight module, so as to reduce pop noises generated by contact during temperature changes.

Abstract: A liquid crystal display and a backlight module thereof are provided. A backlight module comprises a light source, a reflector, and a bottom plate. The reflector is disposed under the light source. The bottom plate is disposed under the reflector and facing a lower surface of the reflector. The bottom plate comprises a plurality of trench structures formed on a surface thereof facing the reflector. Heat-produced by the light source mixes with air in the trench structures, and the mixture of heat and air is conducted via the trench structures to the bottom plate, thereby dissipating heat.

Abstract: A noise reduction device for use in a backlight module includes a plurality of noise reduction devices, each comprising a main body and an extension portion. The extension portion is adapted to cushion the interface between a lamp holder and a back bezel of the backlight module, so as to reduce pop noises generated by contact during temperature changes.

Abstract: A flat display and backlight module thereof are disclosed. The flat display includes a backlight module disposed on a rear surface of a display panel. The backlight module comprises lamps, a reflector, and a diffuser disposed on a back bezel. The reflector is attached on the back bezel. The diffuser and reflector form an enclosed space for the lamps, providing required light for the display panel. The back bezel comprises at least one outer surface with a plurality of fins extending therefrom to increase effective dissipation area thereof.

Abstract: A diffusion assembly includes a diffuser, an optical film and at least one hanging element. The optical film includes at least one hole inserted by the hanging element. The hanging element is located on the diffuser for engaging with the at least one hole of the optical film. A backlight module comprises a frame, a diffuser and an optical film. The frame comprises at least one hanging element. Both the diffuser and optical film comprise at least one hole for connecting to the hanging element on the frame.

Abstract: A direct backlight module at least includes a light-source, a substrate, a heat source and-a heat-pipe, wherein the heat source comprises a PCB, an inventer, and a power supply. The light-source is disposed on the substrate. A bottom surface of the substrate is divided into a first predetermined portion and a second predetermined portion. The PCB is disposed in the first predetermined portion. The light-source is electrically connected with the PCB. The heat-pipe is disposed on the bottom surface of the substrate to transfer heat from the first predetermined portion to the second predetermined portion, such that the temperature distribution of the direct backlight module can be more evenly.

Abstract: A backlight module is provided. The backlight module includes a frame, a reflector, a plurality of light sources, at least one fan and at least one air vent. The frame has a lateral plate. The reflector is disposed on the inside surface of the frame. The plurality of light sources are disposed on the reflector. The fan is disposed on the outside surface of the lateral plate. The air vent is formed on the frame and the reflector corresponding to the fan.

Abstract: A flat display and backlight module thereof are disclosed. The flat display includes a backlight module disposed on a rear surface of a display panel. The backlight module comprises lamps, a reflector, and a diffuser disposed on a back bezel. The reflector is attached on the back bezel. The diffuser and reflector form an enclosed space for the lamps, providing required light for the display panel. The back bezel comprises at least one outer surface with a plurality of fins extending therefrom to increase effective dissipation area thereof.

Abstract: A liquid crystal display and a backlight module thereof are provided. A backlight module comprises a light source, a reflector, and a bottom plate. The reflector is disposed under the light source. The bottom plate is disposed under the reflector and facing a lower surface of the reflector. The bottom plate comprises a plurality of trench structures formed on a surface thereof facing the reflector. Heat-produced by the light source mixes with air in the trench structures, and the mixture of heat and air is conducted via the trench structures to the bottom plate, thereby dissipating heat.