Abstract: The present invention provides a side-edge backlight module including a light guide plate having first and second mounting sides opposite to each other. The first mounting side forms a first positioning hole, a first positioning slot, and a second positioning slot. The second mounting side forms correspondingly a second positioning hole, a third positioning slot, and a fourth positioning slot. A backplane includes six rivet pins respectively received in the first and second positioning holes and the first, second, third, and fourth positioning slots. The first and second positioning slots and the third and fourth positioning slots are of a right-angled trapezoidal shape having a straight side that is open and an inclined side that is inclined downward in a direction toward the first or second positioning hole. The rivet pins received in the first, second, third, and fourth positioning slots respectively abut against the inclined sides of the trapezoids.

Abstract: The utility model discloses a backlight module for a liquid crystal display device and a liquid crystal display device. The backlight module comprises an LED and a backplane, wherein the backlight module also comprises a heatsink plate arranged on the outer of the backplane; and the LED is linked with the heatsink plate in the mode of heat conduction. The utility model, by arranging the LED on an extra heatsink plate which is arranged on the outer of the backplane, dissipates outward the heat emitted by the LED through the heatsink plate, lowers the temperature of the backlight cavity, and protects the optical components. At the same time, because the backplane is not directly used to dissipate heat, the gradient of temperature distribution on the backplane is reduced, thus, the gradient of temperature distribution in the backlight cavity is reduced and stress of the backlight cavity induced by the temperature gradient is also reduced.

Abstract: The present invention proposes a backlight module which includes a back frame and at least one light bar. The back frame is coated with a specific thermal conducting material. The thermal conducting material may form various shapes on the back frame according to locations where the at least one light bar is disposed. Thermal energy produced by the at least one light bar is escaped via the thermal conducting material with various shapes, so that temperature can be uniform across the back frame.

Abstract: The present invention provides a light guide plate and a side-edge backlight module using the light guide plate. The light guide plate includes a plurality of air barrier walls formed therein. The air barrier walls divide the light guide plate into a plurality of sections. With the arrangement of air barrier walls between independent sections of the light guide plate according to the present invention, by means of total reflection, light incident into each independent section is blocked from penetrating through the air gaps and is thus confined within the independent section. Thus, brightness sectioning and independent control of sectionalized brightness of the light guide plate can be realized and improved light isolation result, improved yield, being mass producible, and low cost can be achieved. The side-edge backlight module uses the light guide plate so as to realize brightness sectioning and independent control of sectionalized brightness of the backlight module.

Abstract: A backlight module and a liquid crystal display device are provided. The backlight module at least comprises a light source assembly and a light guide plate. The light source assembly provides multiple groups of parallel incident beams having different intensity. A light incidence surface is used to receive the parallel incident beams and then refract them to be multiple groups of parallel refracted beams. The parallel refracted beams can directly arrive at a bottom surface, and be emitted out from a light-emitting surface after reflected and dispersed by the bottom surface. There forms an included angle between a normal of the light incidence surface and the parallel incident beams, and the included angle is an acute angle. The backlight module and the liquid crystal display device of the present invention can reduce the reflection times of light in the light guide plate for improving the light use efficiency.

Abstract: The present invention provides a light guide plate and a backlight module, wherein the light guide plate comprises a bottom surface, a light incident surface and a light-emitting surface. The light-emitting surface and the bottom surface are positioned oppositely. The bottom surface comprises a plurality of screen dots. The screen dots comprise fluorescent powder and are selectively added with diffusion particles. The present invention prevents the phenomenon of color shift and the luminous efficiency degradation due to the fluorescent powder accelerated ageing because of closing to the LED chip.

Abstract: The present invention provides a backlight module, which includes a backplane, a backlight source arranged inside the backplane, a light guide plate arranged inside the backplane to correspond to the backlight source, a reflector plate arranged between the light guide plate and the backplane, an optic film disposed on the light guide plate, a mold frame arranged on the backplane, and a block wall arranged between the light guide plate and the mold frame and opposing the backlight module. The block wall forms a slope face close to the backlight source. A reflective layer is formed on the slope face. Being provided between the mold frame and the light guide plate, the block wall reflects light that gets incident thereon back into the light guide plate in order to eliminate leak through a gap between an optic film assembly and the light guide plate.

Abstract: The present invention provides a side-edge backlight module including a light guide plate having first and second mounting sides opposite to each other. The first mounting side forms a first positioning hole, a first positioning slot, and a second positioning slot. The second mounting side forms correspondingly a second positioning hole, a third positioning slot, and a fourth positioning slot. A backplane includes six rivet pins respectively received in the first and second positioning holes and the first, second, third, and fourth positioning slots. The first and second positioning slots and the third and fourth positioning slots are of a right-angled trapezoidal shape having a straight side that is open and an inclined side that is inclined downward in a direction toward the first or second positioning hole. The rivet pins received in the first, second, third, and fourth positioning slots respectively abut against the inclined sides of the trapezoids.

Abstract: An LED light bar includes a PCB and a plurality of LED lamps mounted to and electrically connected with the PCB. Each of the LED lamps has a light emission face that is perpendicular to the PCB. The LED lamps at two opposite ends are arranged to have the light emission faces thereof angularly shifted in directions away from the light emission faces of the LED lamps in the middle to thereby increase light irradiation range of the LED light bar. With the LED lamps at two ends of the LED light bar being arranged to have light emission faces thereof angularly shifted so as to form a predetermined included angle between the light emission faces of the LED lamps and a light incidence face of the light guide plate, the irradiation range of light from the LED light bar is increased.

Abstract: The present invention provides a light guide plate and a side-edge backlight module using the light guide plate. The light guide plate includes a plurality of air barrier walls formed therein. The air barrier walls divide the light guide plate into a plurality of sections. With the arrangement of air barrier walls between independent sections of the light guide plate according to the present invention, by means of total reflection, light incident into each independent section is blocked from penetrating through the air gaps and is thus confined within the independent section. Thus, brightness sectioning and independent control of sectionalized brightness of the light guide plate can be realized and improved light isolation result, improved yield, being mass producible, and low cost can be achieved. The side-edge backlight module uses the light guide plate so as to realize brightness sectioning and independent control of sectionalized brightness of the backlight module.

Abstract: The present invention provides a light guide plate and a manufacturing method thereof and a side-edge backlight module using the light guide plate. The light guide plate includes a plurality of reflective separation walls arranged therein. The reflective separation walls divide the light guide plate into a plurality of sections. The reflective separation walls have surfaces forming mirror surfaces. The light guide plate includes reflective separation walls respectively arranged between independent sections to have light traveling from an independent section toward the reflective separation wall reflected back into the independent section and thus confined within the independent section. Thus, brightness sectioning and independent control of sectionalized brightness of the light guide plate can be realized and improved light isolation result can be achieved.

Abstract: The present invention provides a side-edge backlight module, which includes a backplane, a light guide plate arranged inside the backplane, a backlight source arranged inside the backplane, and a photo coupler arranged between the light guide plate and the backlight source, whereby light emitting from the backlight source is subjected to light mixing by the photo coupler and then enters the light guide plate so as to improve homogeneity of light illumination of the light guide plate at a location close to a backlight source. The side-edge backlight module arranges a photo coupler between a light incidence surface of a light guide plate and LED lights of a backlight source in order to make lights emitting from the backlight source incident to the light guide plate in a uniform manner thereby providing the light guide plate with homogeneous light illumination.

Abstract: A liquid crystal display device has a liquid crystal panel and a backlight unit, wherein the backlight unit comprises: a light guide plate, having a bottom surface, a light exiting surface opposite to the bottom surface, at least one lateral light incident surface and at least a lateral side, wherein the lateral side includes a retaining surface; a frame body for receiving the light guide plate, having a stopping part disposed at a position corresponding to the retaining surface, wherein the stopping part is closely engaged with the retaining surface of the light guide plate for fixing the light guide plate; and a light source disposed in the frame body, emitting light toward to the lateral light incident surface.

Abstract: The utility model discloses a backlight module for a liquid crystal display device and a liquid crystal display device. The backlight module comprises an LED and a backplane, wherein the backlight module also comprises a heatsink plate arranged on the outer of the backplane; and the LED is linked with the heatsink plate in the mode of heat conduction. The utility model, by arranging the LED on an extra heatsink plate which is arranged on the outer of the backplane, dissipates outward the heat emitted by the LED through the heatsink plate, lowers the temperature of the backlight cavity, and protects the optical components. At the same time, because the backplane is not directly used to dissipate heat, the gradient of temperature distribution on the backplane is reduced, thus, the gradient of temperature distribution in the backlight cavity is reduced and stress of the backlight cavity induced by the temperature gradient is also reduced.

Abstract: The present invention discloses a side-light type light guide plate assembly and a backlight module, which has a light guide plate and at least one reflector sheet. The light guide plate has a lower surface, a light output surface opposite to the lower surface, and at least one light input side surface connected between the lower surface and the light output surface. The reflector sheet is correspondingly disposed on at least one side surface of the light guide plate except for the light input side surface, while a medium layer is defined between the reflector sheet and the light guide plate. The refraction index of the medium layer is smaller than or equal to 1.12. By providing the air layer and the reflector sheet, light beam emitting out of a side of the light guide plate and going back to the light guide plate can meet conditions of total reflection, so as to prevent from generating a light leakage phenomenon at edges of the light guide plate.

Abstract: The present invention discloses a backlight module configured with a light source, a waveguide, a reflector and an optical film. The waveguide includes a light inlet surface facing the light source, and a light emitting surface which is adjacent to the light inlet surface, and a bottom surface opposite to the light emitting surface. The reflector is disposed under the bottom surface of the waveguide. An optical film is disposed above the light emitting surface of the waveguide. Wherein the reflector is coated with a gradation color layer composed by yellow graduating to blue so as to ensure the projected light from the light source is homogeneous with reduced chromatic aberration.

Abstract: The present invention provides a backlight module configured with a waveguide including an incident surface, and a refractive surface adjacent to the incident surface, and a bottom surface opposite to the refractive surface. A light source is included to provide projected light beam into the incident surface of the waveguide through a deflector. A backframe is disposed on below the bottom surface of the waveguide. And Wherein the deflector is formed by an extension of the backframe extending from an edge of the backframe adjacent to the incident surface, the extension further extending along the incident surface. By the configuration provided, material cost can be lowered, while optical performance of the parts can be stabilized. Coupling between the light source and the waveguide is enhanced.

Abstract: The present invention provides a direct backlight module including a backplane, backlight sources arranged inside the backplane, and a diffusion plate mounted to the backplane and located above the backlight sources. The backplane includes a bottom plate, side plates connected to the bottom plate, and mount units formed on the bottom plate and each having first and second slope surfaces that are inclined in opposite directions. The backlight sources are respectively mounted to the first and second slope surfaces, whereby the backlight sources are set inclined with respect to the diffusion plate in order to increase the distance available for light mixing, improve intensity and homogeneity of illumination, and at the same time reduce the quantity of LED lamps used to reduce the manufacture cost and facilitate size thinning of the backlight module.

Abstract: The present invention relates to an LED light source and a corresponding backlight module. The LED light source includes a bar-shaped base and multiple LED assemblies. The LED assemblies each has an LED leadframe, a light-emitting chip, an anode bonding pad and a cathode bonding pad. The anode and cathode bonding pads are connected to the light-emitting chip and mounted on a bottom of the LED leadframe. By mounting the electrodes of the LED assembly on the bottom of the LED leadframe, the LED light source and the corresponding backlight module of the present invention prevents a technical problem that the electrodes of LED assemblies are easy to become short-circuited.

Abstract: Disclosed are a light guide plate and backlight module. The light guide plate comprises a bottom surface and a top surface opposite to the bottom surface. A plurality of micro-structure units are set up adjacently at the top surface or/and bottom surface of lateral side of the light guide plate. Each micro-structure unit comprises a plurality of branches of micro-structures, and a plurality of micro-structures in each micro-structure unit extend diffusely at the top surface or/and bottom surface of the light guide plate. It is capable of mixing light sufficiently in a shorter distance via the establishment of the light guide plate to attribute the light intensity of the side-light type backlight module even to avoid shadow without raising a frame thickness.