Backlight module and liquid crystal display module

Abstract

The invention provides a backlight module and a liquid crystal display module. The backlight module comprises a back plate, a plurality of light emitting units arranged on the back plate at intervals,and a diffusing plate arranged on the light emitting units. Each light emitting unit comprises a light emitting diode, an LED lens which covers the light emitting diode and at least one support structure arranged on the LED lens, wherein the support structure and the LED lens support the height of a cavity together. The support structure provided by the invention has smaller height and size thana support structure in the prior art, and is not easy to deform. Due to the LED lenses, most of lights emitted by the light emitting diodes are centralizedly emitted out from the sides of the LED lenses. Since the support structures are located above the LED lenses, lights are not blocked, and shadows on the diffusing plate are avoided. The light emitting quality of the backlight module is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a liquid crystal display module. Background technique [0002] Thin Film Transistor (TFT) is the main driving element in current Liquid Crystal Display (LCD) and Active Matrix Organic Light-Emitting Diode (AMOLED). It is related to the display performance of the flat panel display device. [0003] Most of the liquid crystal displays currently on the market are backlight liquid crystal displays, which include a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to pour liquid crystal molecules between the thin film transistor array substrate (ThinFilm Transistor Array Substrate, TFT Array Substrate) and the color filter (ColorFilter, CF) substrate, and apply pixel voltage on the two substrates respectively. and the common voltage, through the electric field formed between the pixel voltage and...

AI Technical Summary

Problems solved by technology

In addition, another function of the support structure is the support function. During the use of the backlight, the support structure needs to be able to maintain its original shape when it withstands a certain ambient temperature and a certain external force. However, the current support structure often encounters The reliability problem is that the temperature in the backlight cavity increases when the LED is working, or the ambient temperature is too high during transportation, or a certain deformation of the module during transportation will cause deformation of the supporting structure. At this time, the supporting structure will lose its support. function of cavity height, and its deformation is irreversible

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