Back frame and backlight system

Abstract

The invention provides a back frame and a backlight system for a panel display device. The back frame comprises main splicing pieces, an auxiliary splicing piece and a support for fixing a circuit board. Wherein at least two main splicing pieces are spliced through a splicing part, and the main splicing pieces apply different heat conduction materials, moreover, a strengthening structure is arranged at the splicing part of the main splicing pieces, and the circuit board can be clamped, fixed and adjusted through the support. The invention also provides the backlight system. The back frame andthe backlight system provided by the invention have the advantages that: back frame structure is simple, cost of a back frame die can be reduced, heat dissipation can be beneficial, strength requirement of the back frame can be favourably met, circuit board fixing can be beneficial, moreover, materials of the back frame can be saved, and production cost of the panel display device can be reduced.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a back frame and a backlight system of a flat panel display device. 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 integral back frame, and the integral bac...

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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