Backlight module and liquid crystal display

Abstract

The invention discloses a backlight module which comprises a back board, a reflection piece located on the back board, a glass substrate located on the reflection piece and a backlight source arranged on one side of the glass substrate, wherein one side of the glass substrate facing the reflection piece is provided with an optical network point structure layer, the other side of the glass substrate is a light emergence face. A first polarizer is further arranged between the backlight source and the glass substrate, light emitted by the backlight source passes through the first polarizer to form polarized light and enters the glass substrate, and the polarized light is reflected by the optical network point structure layer and then is conducted out of the light emergence face. The backlight module does not use a light guide plate, so that the cost of the backlight module is reduced. The backlight module can further improve the light source utilization rate and product quality. The invention further discloses a liquid crystal display including the backlight module.

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 including the backlight module. Background technique [0002] Liquid crystal display, or LCD (Liquid Crystal Display), is a flat and ultra-thin display device, which consists of a certain number of color or black and white pixels, placed in front of a light source or a reflector. Liquid crystal displays have low power consumption, high image quality, small size, and light weight, so they are favored by everyone and become the mainstream of displays. [0003] The liquid crystal display includes a liquid crystal display and a backlight module. The liquid crystal display and the backlight module are arranged opposite to each other. The backlight module provides a light source for the liquid crystal display to display images on the liquid crystal display. A liquid crystal display is mainly composed of two transparent su...

AI Technical Summary

Problems solved by technology

[0004] like figure 1 The backlight module shown uses a light guide plate and a corresponding large-area optical film. The price of the light guide plate and optical film is high, and its materials are prone to defects such as damage and expansion and contraction deformation, resulting in the failure of the liquid crystal module. Poor display; in addition, when the light is transmitted in the light guide plate and the optical film group, it will be attenuated, thereby reducing the light utilization efficiency of the liquid crystal display. The light path transmitted in the light guide plate and the optical film set

Images