Backlight module and display module

Abstract

The invention provides a backlight module and a display module. The display module comprises a display panel and a backlight module, wherein the backlight module comprises a plurality of optical membranes, a plastic frame accommodating and fixing the plurality of optical membranes, a reflective sheet and a back panel; the back panel comprises a side plate and a bottom edge vertical to the side plate; the middle of the bottom edge is hollow; the reflective sheet and the plastic frame are fixed and cemented; the reflective sheet supports the plurality of optical membranes and the plastic frame all positioned above the reflective sheet, and comprises an extending part; and the extending part and the bottom edge are positioned on the same horizontal plane. According to the invention, the structure of the back panel is changed, the thickness of the plastic frame positioned above the bottom edge is reduced, and the thickness of the backlight module is effectively reduced while the performance and strength of the backlight module are guaranteed, so that the display module is lightened and thinned.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a backlight module and a display module. Background technique [0002] Liquid crystal display, or LCD (Liquid Crystal Display), is a flat and ultra-thin display device, which is widely used in various electronic products due to its small size, thin thickness, light weight, high image quality and energy saving products. [0003] refer to figure 1 As shown, the liquid crystal display includes a display panel 30 and a backlight module that provides a light source for the display panel 30 . The surface light source characteristics of the backlight module can provide the display panel with high-brightness and evenly distributed light beams. The existing backlight module includes a backplane 2, a plurality of optical films 50, a plastic frame 7 for accommodating and fixing a plurality of optical films 50 (including diffusion sheets, prism sheets, etc.), and a reflector 40, and t...

AI Technical Summary

Problems solved by technology

[0004] With the further development of thinner, lighter and smaller electronic products in the market, some existing liquid crystal displays further reduce the thickness of the optical film, or simply delete some components of the backlight module (such as backlight modules without light guide plates and LCDs). ), so as to further reduce the thickness of the liquid crystal display, in order to meet the market's demand for the progress of liquid crystal displays - thin and light miniaturization, but it destroys the composition of the backlight module, and directly reduces the performance of the backlight module, such as the structure of the LCD without light guide It directly destroys the uniformity of the light output of the display panel and reduces the light utilization rate of the LCD

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