Abstract: The present invention discloses a backplane, a backlight module and an LCD device. A backplane of a backlight module, comprising: a frame; the frame comprises a plurality of mutually joined brackets; bridges are connected among the brackets; locking pieces are fixed to the bridges or the brackets; The backplane is provided with a plurality of locking pieces for fixing PCBs of the backlight module; the tops of the locking pieces fixed with the PCBs are provided with conical peaks; elastic buckling claws extend out of the bottoms of the peaks. The present invention has lower manufacturing cost, saves the material, has simple operation steps and high efficiency, is beneficial to productivity enhancement and further reduces the cost.

Abstract: The present invention discloses a locking piece, a backlight module, and an LCD device. A locking piece for fixing PCB on backplane, the fixed top of the locking piece and the PCB is provided with a clamping structure; and the root of the locking piece is provided with a fixed structure for fixing the locking piece on the backplane. Because the present invention uses independent locking pieces, the locking pieces can be selectively fixed and arranged in the positions for fixing the PCB on the backplane. Thus, the standardization and generalization design is achieved, and the cost is reduced; in addition, because a clamping structure is used between the locking piece and the PCB, compared with the modes of screw fixation, riveting fixation and the like, the clamping mode has high installation efficiency and is beneficial to productivity enhancement and further cost reduction.

Abstract: The invention discloses a connecting piece, a backplane and an LCD device. A connecting piece of a frame type backplane, the connecting piece comprises at least two connecting parts which are respectively fixed with the end parts of brackets of the frame type backplane. In the invention, because the connecting piece is adopted for joining the brackets, the connecting piece can be made into an integrally formed structure with high strength for enhancing the joining strength of the brackets. Moreover, the connecting piece is provided with a plurality of connecting parts, each of which is individually connected with one bracket; an interface can achieve standards; the brackets can be made into standard sections and can also be cut according to various dimensions so that the universality of the brackets is enhanced.

Abstract: The present invention discloses a back plate of a liquid crystal display (LCD) module and a splice structure thereof. The back plate is assembled at least by a first back plate portion and a second back plate portion, wherein at least one splice structure is defined between the first back plate portion and the second back plate portion, and the shapes of two sides of the splice structure are correspondingly engaged with each other. Besides, the convex portion is provided with a fixing hole thereon, and the concave step portion is correspondingly provided with a fixing pillar therein. The fixing pillar passes through the fixing hole to fix the first back plate portion and the second back plate portion. The present invention can use different type of material to assemble into the back plate, so as to intensify the splicing strength except for decreasing the material cost.

Abstract: The present invention discloses a back plate of a liquid crystal display (LCD) module and a splice structure thereof. The back plate is assembled at least by a first back plate portion and a second back plate portion, wherein at least one splice structure is defined between the first back plate portion and the second back plate portion, and the shapes of two sides of the splice structure are correspondingly engaged with each other. Besides, the convex portion is provided with a fixing hole thereon, and the concave step portion is correspondingly provided with a fixing pillar therein. The fixing pillar passes through the fixing hole to fix the first back plate portion and the second back plate portion. The present invention can use different type of material to assemble into the back plate, so as to intensify the splicing strength except for decreasing the material cost.

Abstract: The present invention relates to a technology field of a printed circuit board, and more particularly to a connection structure of a printed circuit board and a connection method thereof. The connection structure of the printed circuit board of the present invention comprises a first and second printed circuit boards. One end of the first printed circuit board disposes a receiving portion. One end of the second printed circuit board disposes a protruding portion. The shape of the protruding portion is corresponding to that of the receiving portion. When connecting the first and second printed circuit boards, the protruding portion is engaged with the receiving portion so that realizing a physical connection. The connection structure and the connection method may reduce the product cost. Moreover, the printed circuit boards connected by the solution of the present invention can be conveniently mounted and dismounted to simplify the operation.

Abstract: The present invention relates to a technology field of a printed circuit board, and more particularly to a connection structure of a printed circuit board and a connection method thereof. The connection structure of the printed circuit board of the present invention comprises a first and second printed circuit boards. One end of the first printed circuit board disposes a receiving portion. One end of the second printed circuit board disposes a protruding portion. The shape of the protruding portion is corresponding to that of the receiving portion. When connecting the first and second printed circuit boards, the protruding portion is engaged with the receiving portion so that realizing a physical connection. The connection structure and the connection method may reduce the product cost. Moreover, the printed circuit boards connected by the solution of the present invention can be conveniently mounted and dismounted to simplify the operation.

Abstract: The utility model relates to a technology field of liquid crystal display, and more particularly to a backlight module and a backlight device. The backlight module provided by the utility model comprises a light guide plate, a printed circuit board, a heat-dissipating bracket and a first retaining member. There has an optical-coupling distance between a light incidence surface of the light guide plate and the printed circuit board. The light incidence surface of the light guide plate disposes more than two light guide plate protrusions thereon. The first retaining member retains the heat-dissipating bracket, the printed circuit board and the light guide plate together to form an independent module. The technical solution of the utility model can enhance the stability of the optical-coupling distance in the backlight module, realize a simple modularization assembly, simplify a mounting process of the back plate, and improve the assembly convenience.

Abstract: The present invention provides a light source fixing device for fixing a light emitting element. The light emitting element comprises a light source and a supporting plate for supporting the light source. The light source fixing device comprises a heat dissipating support which comprises a receiving recess. The receiving recess is adapted to receive the supporting plate. The light source fixing device further comprises an elastic element disposed in the receiving recess, and the elastic element is adapted to apply an elastic force on the supporting plate so that the supporting plate is fixed in the receiving recess. The present invention further provides a light source assembly and an assembling method thereof. The light source assembly features a simple assembling process, high reliability and a low cost.

Abstract: The present invention provides a liquid crystal display (LCD) device and a back cover thereof. The LCD device comprises a liquid crystal panel, a back cover, a light guide plate and a light source. The back cover comprises a first sidewall, a second sidewall, a first supporting wall and a second supporting wall. The first sidewall and the second sidewall are spaced apart from each other to form a receiving space. The first supporting wall connects an end of the first sidewall and an end of the second sidewall. The second supporting wall extends away from the second sidewall and connects to the other end of the first sidewall. The liquid crystal panel is supported on a side of the first supporting wall that faces away from the first sidewall and the second sidewall. The light guide plate is supported on a side of the second supporting wall that faces towards the liquid crystal panel. The light source is disposed inside the receiving space.

Abstract: The present invention provides a light source heat-dissipation structure of a backlight module having: a light-source structure, the heat-dissipation base and a carrier. The light-source structure has leads, respectively. The heat-dissipation base has a supporting surface, an attachment surface and first through holes. The carrier has second through holes, and the carrier is attached to the attachment surface of the heat-dissipation base. The light-source structure is set on the supporting surface of the heat-dissipation base, and the leads of the light-source structure pass through the first through holes and the second through holes and then electrically connect with the carrier. Hence, the heat-dissipation base may directly support and thermally contact the light-source structure for relatively enhancing the heat-dissipation efficiency of the light-source structure.

Abstract: A light source module is disclosed. The light source module comprises a light emitting diode (LED) and an LED receiver. The LED is provided with a locating element on a side surface thereof. The LED receiver has a receiving portion, and a snap-fitting structure is disposed on a side surface of the receiving portion to mate with the locating element so that the LED can be located in the receiving portion of the LED receiver. An LED receiver and a backlight device are also disclosed. The light source module and the LED receiver of the present invention allow for optimization of the assembling process of the LED.

Abstract: Disclosed are a mosaic light guide plate structure and a backlight module. The mosaic light guide plate structure comprises at least two light guide plate units. Each of the light guide plate units comprises a first tilt face and a second tilt face with cooperation of at least one light-emitting unit. The first tilt face is positioned at a side of the light guide plate unit. The second tilt face is oppositely positioned to the first tilt face at the other side. The at least one light-emitting unit is positioned under the first tilt face. The present invention assembles adjacent tilt faces to form the light guide plate and changes the direction of light with the tilt faces for solving issues of length limitation for the light guide plate. Accordingly, the mosaic light guide plate structure of the present invention can be suitable for large-scale LCDs and realize local dimming.

Abstract: The present invention discloses an edge-lit backlight module and a liquid crystal display, the edge-lit backlight module comprises a back plate, a light guide plate (LGP), a fixing frame and a light emitting device. The fixing frame embraces and fixes the light guide plate on the back plate, a circuit board of the light emitting device is disposed outside the fixing frame, the fixing frame is provided with at least one light incident opening corresponding to at least one light emitting element of the light emitting device. The present invention provides an edge-lit source required by the LGP but insulates most of heat generated by the light emitting element by the light incident opening.

Abstract: The present invention discloses a light emitting diode (LED) light bar structure having heat dissipation function, adapted for a backlight module, and including a heat dissipation body, a plurality of light emitting diodes (LEDs), and a circuit board. The heat dissipation body has a circuit board insertion slot and is provided with a plurality of installation holes in row. The installation holes pass through the heat dissipation body, the LEDs are embedded in respective installation holes, and the circuit board is received in the circuit board insertion slot whereby the LEDs are fixed in the installations holes and electrically connect the circuit board. Accordingly, the LED light bar structure not only simplifies assembling procedures but also directly and laterally dissipate heat generated by the LEDs through a tight engagement of the LEDs and the heat dissipation body, thereby improving dissipation efficiency of the backlight module.