Abstract: The present application provides a display device (01) and an assembly method for display device. The display device (01) includes a backlight module (02), a display panel (03), and a circuit board (22). The backlight module (02) includes a back plate (21) including a first side plate (211), a second side plate (212), and a bottom plate (213). The second side plate (212) is disposed opposite to the first side plate (211). The bottom plate (213) is disposed on a side of the first side plate (211) close to the second side plate (212). A groove body (214) is provided between the bottom plate (213) and the second side plate (212), the groove body (214) has a groove (A) on a side of the bottom plate (213) away from the display panel (03), and the circuit board (22) is disposed in the groove (A).

Abstract: The present application discloses a display device, the display device includes a frame area. The display device includes a backplate, a light guide plate, and an optical diaphragm. A receiving cavity is defined in the backplate, the light guide plate is located in the receiving cavity, the light guide plate includes at least one light guide plate extension part, the light guide plate extension part is located in the frame area, the optical diaphragm is arranged on the light guide plate, the optical diaphragm includes at least one diaphragm extension part, and the diaphragm extension part is located in the frame area. The diaphragm extension part is engaged together and connected with the light guide plate extension part.

Abstract: A splicing display screen is provided by the present application. The splicing display screen includes at least one first display module, at least one second display module, and a positioning assembly. The first display module includes a first frame. The first frame is defined with at least one first locking hole. The second display module includes a second frame. The second frame is defined with at least one first positioning hole. One of the first positioning holes corresponds to one of the first locking holes. The positioning assembly is disposed in the first locking hole. The positioning assembly includes a positioning member and an elastic member. A part of the positioning member is clamped into the first positioning hole.

Abstract: The present application provides a splicing display device, which comprises a box body, a bracket, a plurality of display panels, a plurality of panel fixing members, and a plurality of bracket fixing members. The bracket is detachably disposed on the box body. The plurality of display panels are detachably disposed on the bracket. The plurality of panel fixing members fix the display panel and the bracket. The plurality of bracket fixing members fix the bracket and the box body.

Abstract: A splicing display screen is provided by the present application. The splicing display screen includes at least one first display module, at least one second display module, and a positioning assembly. The first display module includes a first frame. The first frame is defined with at least one first locking hole. The second display module includes a second frame. The second frame is defined with at least one first positioning hole. One of the first positioning holes corresponds to one of the first locking holes. The positioning assembly is disposed in the first locking hole. The positioning assembly includes a positioning member and an elastic member. A part of the positioning member is clamped into the first positioning hole.

Abstract: The present application provides a splicing display device, which comprises a box body, a bracket, a plurality of display panels, a plurality of panel fixing members, and a plurality of bracket fixing members. The bracket is detachably disposed on the box body. The plurality of display panels are detachably disposed on the bracket. The plurality of panel fixing members fix the display panel and the bracket. The plurality of bracket fixing members fix the bracket and the box body.

Abstract: The present application discloses a display device, the display device includes a frame area. The display device includes a backplate, a light guide plate, and an optical diaphragm. A receiving cavity is defined in the backplate, the light guide plate is located in the receiving cavity, the light guide plate includes at least one light guide plate extension part, the light guide plate extension part is located in the frame area, the optical diaphragm is arranged on the light guide plate, the optical diaphragm includes at least one diaphragm extension part, and the diaphragm extension part is located in the frame area. The diaphragm extension part is engaged together and connected with the light guide plate extension part.

Abstract: A display panel and a display device are provided. The display panel includes a driving backplate, a plurality of light-emitting diode (LED) chips disposed on a side of the driving backplate, and an adhesive. The adhesive includes a first state and a second state. Viscosity of the adhesive in the second state is less than viscosity of the adhesive in the first state. The driving backplate and the LED chips are fixedly connected to each other by the adhesive in the first state. The adhesive can be converted from the first state into the second state by laser irradiation, and power of the laser is less than 10 w. The driving backplate and the LED chips are attached to each other by the adhesive in the first state, and viscosity of the adhesive in the first state can be reduced by irradiation with a low-power laser.

Abstract: An impact echo detection system including a fixed mount, an impact source, an elastic connection member, a transducer, and an acquisition and analysis device is provided. The fixed mount includes a frame and support rods. The support rods are fixed to the frame, which is passed through by the support rods. A middle portion of the elastic connection member passes through a through hole in the impact source, and is fixed to the impact source. Two ends of the elastic connection member are respectively connected to the fixators of the frame. The transducer is disposed at a periphery of the fixed mount with one end abuts against a surface of a medium to be tested and another end connects the acquisition and analysis device. The acquisition and analysis device analyzes the received impact echo data measured by the transducer to obtain analysis results.