Combined type back plate, backlight module using back plate and liquid crystal display device

Abstract

The invention provides a combined type back plate, a backlight module using the back plate and a liquid crystal display device. The combined type back plate comprises a main body and a first bracket buckled with the main body, wherein the main body comprises a substrate, and a first side plate and a second side plate which are vertically connected with the substrate; the first side plate and the second side plate are arranged opposite to each other; a first buckling part is arranged at one end, near the first bracket, of each of the first side plate and the second side plate; the first bracket comprises a first bottom plate and a third side plate which is vertically connected with the first bottom plate; a first buckling groove corresponding to the first buckling part is formed in each of the two ends of the third side plate; and the first buckling parts are buckled into the first buckling grooves respectively, so that the first bracket and the main body are assembled together. The combined type back plate has a simple structure and is easy to process; and the buckling parts have certain elasticity, so that the buckling parts are stably buckled with the buckling grooves.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a combined backplane, a backlight module and a liquid crystal display device using the backplane. Background technique [0002] A liquid crystal display (LCD, Liquid Crystal Display) has many advantages such as a thin body, power saving, and no radiation, and has been widely used. Most of the liquid crystal display devices currently on the market are backlight liquid crystal display devices, which include a liquid crystal panel and a backlight module. The working principle of the LCD panel is to place liquid crystal molecules between two parallel glasses. There are many small vertical and horizontal wires between the two glasses. The direction of the liquid crystal molecules is controlled by electrifying or not, and the light from the backlight module is refracted out to produce screen. Since the liquid crystal panel itself does not emit light, the light source provided by...

AI Technical Summary

Problems solved by technology

When the backlight needs to be replaced, the entire liquid crystal display device needs to be disassembled, that is, the front frame, the liquid crystal display panel, the plastic frame, the optical film group and the light guide plate need to be disassembled in order to take out the backlight, and the operation is complicated. , Time-consuming and labor-intensive, and during the dismantling process, it is easy to damage components such as the liquid crystal display panel, plastic frame, optical film group, and light guide plate, resulting in increased rework or maintenance costs

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