Die for back frame and bracket, manufacturing method for back frame and backlight system

Abstract

The invention provides a method for manufacturing a back frame of a flat display device. The method comprises the following steps of: splicing at least first and second main splicing pieces to form the back frame, wherein one end of the first main splicing piece is provided with at least two splicing parts, the structure of each splicing part is in fit with one end of the corresponding second main splicing piece, the first main splicing piece is spliced with one end of the corresponding second main splicing piece through one splicing part of the first main splicing piece, and the back frame further comprises a plurality of brackets mutually fixed with the main splicing pieces; and moving the brackets according to the bracket patterns of a bracket die to form corresponding installation structures on the brackets. The invention also provides a die for manufacturing the back frame and the brackets of the flat display device, a method for manufacturing the back frame of the flat display device and a backlight system. According to the back frame, the die of the back frame, the manufacturing method for the back frame and the back frame die of the backlight system, the back frame has simple structure, the cost of the back frame die can be reduced, and the material for the back frame is saved to reduce the cost of the flat display device.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a mold for a back frame and a bracket of a flat panel display device, a method for manufacturing 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...

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

[0005] Therefore, it is necessary to design a spliced ​​backplane, and the spliced ​​backplane needs to be equipped with multiple brackets to install circuit boards and other components of the liquid crystal display device. Since the shapes and structures of the brackets are different, for example Figure 20 shows a bracket 2378, the bracket 2378 needs to be provided with installation structures a, c and d, such as circular through holes, and Figure 21 shows another bracket 2379, the bracket 2379 needs to be provided with installation structures a, b and d, and the two brackets need to be manufactured separately using two sets of bracket molds, which increases the cost of the bracket mold

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