Backlight module and liquid crystal display device

Abstract

The invention provides a backlight module and a liquid crystal display device. The backlight module comprises a backboard, a bearing device, a partial edge fixedly connected with the upper surface of the backboard, a backlight module membrane set. The backlight module is defined on the backboard by the bearing device; wherein the bearing device comprises a base part, a supporting part and a fixing part, the base part extends along the partial edge of the upper surface of the backboard, the supporting part projects upwards out of the top surface of the base part in a substantially vertical manner, the top of the supporting part is provided with a stepped supporting surface with at least one step, and the fixing part extends downwards from a bottom surface of the base part opposite to the top surface in a substantially vertical manner so as to fixedly connect the bearing device with the backboard. The bearing device in the backlight module is used for replacing a conventional rubber frame so that the production process can be simplified and the cost can be reduced.

Description

Backlight module and liquid crystal display device technical field The invention relates to the technical field of liquid crystal display, in particular to a backlight module and a liquid crystal display device. Background technique As a flat panel display, liquid crystal display (LCD) has many advantages such as clear and accurate images, thin thickness, light weight, no radiation, low energy consumption and low working voltage. It has been widely used in mobile communication terminals, multimedia and industrial computer etc. in various fields. Generally, a liquid crystal display device includes a liquid crystal panel and a backlight module that provides a light source for the liquid crystal panel. The backlight module is mainly composed of backlight, plastic frame, rigid frame and various backlight film materials. A light emitting diode (Light Emitting Diode, LED), a cold cathode fluorescent lamp (Cold Cathode Fluorescent Lamp, CCFL) or an electroluminescent element (...

AI Technical Summary

Problems solved by technology

However, the problem is that the current plastic frame is composed of polymer materials and is formed by a special mold. Generally, it is necessary to design and manufacture the plastic frame mold according to the model of the LCD display or the size of the LCD panel, and then manufacture the plastic frame of the corresponding size. In fact, , Different liquid crystal displays need to design and manufacture plastic frame molds many times according to their product models or different sizes of liquid crystal panels to produce plastic frames corresponding to the product models or sizes of liquid crystal displays. This process is more complicated and the production cycle is long. , which will also lead to an increase in the cost of the liquid crystal display device

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