Backlight module and liquid crystal display device

Abstract

The invention discloses a backlight module. The backlight module comprises a back board as well as a light guide plate structure and a light source component which are arranged on the back board, wherein the light guide plate structure is mainly formed by splicing a plurality of light guide plate blocks; each light guide plate block comprises a splicing end surface and at least one light inlet end surface; and the light source component is arranged on at least one light inlet end surface of each light guide plate block. The invention further discloses a liquid crystal display device comprising the backlight module. The light guide plate structure in the backlight module provided by the invention can reduce light mixing height of the backlight module, and is beneficial to thinning a product. Besides, the light guide plate structure is simple, liable to realize and beneficial to reducing the cost of the product.

Description

technical field [0001] The invention relates to the technical field of liquid crystal displays, in particular to a backlight module and a liquid crystal display device. Background technique [0002] With the evolution of optoelectronics and semiconductor technology, it has also led to the vigorous development of flat panel displays. Among many flat panel displays, liquid crystal displays (LCD for short) have high space utilization efficiency and low power consumption. , no radiation and low electromagnetic interference and many other superior features have become the mainstream of the market. A liquid crystal display generally includes a liquid crystal display panel (Liquid Crystal Panel) and a backlight module (Black Light Module, BL for short). Since the liquid crystal display is a passive display device without self-luminous function, it is necessary to install a backlight module to provide the display light source required by the display panel. In this way, whether the ...

AI Technical Summary

Problems solved by technology

Due to the large size, many optical components, such as light guide plates, either cannot be produced in a suitable size, or they need to pay a huge price to produce a suitable size

Therefore, in super-large-sized LCDs, direct-lit backlights are usually used. Direct-lit backlights are low in cost due to the use of fewer light sources and no light guide plates.

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