Back frame of flat display device, manufacturing method for back frame and backlight system

Abstract

A back frame (23) of a flat panel display device (20), a manufacturing method of the back frame (23), and a backlight system (21). The back frame (23) comprises at least first and second main splicing pieces (261, 262). Two ends of the first main splicing piece (261) and two ends of the second main splicing piece (262) comprise splicing portions (2611, 2612, 2621, 2622). The first and second main splicing pieces (261, 262) are spliced through corresponding splicing portions (2611, 2612, 2621, 2622). Two splicing portions (2611, 2612) of the first main splicing piece (261) are provided with different alignment identifiers (A, B), and each splicing portion (2621, 2622) of the second main splicing piece (262) fitted to the first main splicing piece (261) is provided with a corresponding alignment identifier (A, B). In the back frame (23) of the flat panel display device (20), the structure is simple, the mold cost of the back frame (23) can be reduced, the material of the back frame (23) can be saved to reduce the cost, and the fool-proofing design of the back frame (23) can be satisfied, thereby further reducing the misoperation and improving the production efficiency.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a back frame of a flat panel display device, a manufacturing method of the back frame and a backlight system. Background technique [0002] In the prior art, a liquid crystal display device includes a front frame, a panel, and a backlight module, wherein the backlight module includes a back frame, a reflection sheet, a light guide plate, and a lamp group. [0003] Currently, there are various sizes of display panels on the market to meet people's different needs. For example, in the field of television, the size of LCD panels includes 31.5, 42, 46, 48 or 55 inches, and different back frame molds need to be set according to different sizes of LCD panels. [0004] See figure 1 , figure 1 It is a schematic diagram of the structure of the back frame of the liquid crystal display device in the prior art. Such as figure 1 As shown, the back frames 10 in the prior art all adopt an...

AI Technical Summary

Problems solved by technology

like figure 1 As shown, the back frames 10 in the prior art all adopt an integral back frame, and the integral back frame 10 is usually produced by metal stamping or plastic injection. The integral back frame 10 needs to consume too much material, and the material cost is high.

In addition, the large-sized back frame 10 needs to use relatively large stamping equipment, and the mold corresponding to the back frame 10 has a large size and complex structure, and the cost of the back frame mold is high.

Therefore, the cost of the back frame of the prior art is high

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