Optical module, backlight module and display device

Abstract

The invention relates to the technical field of display and discloses an optical module, a backlight module and a display device. The optical module comprises a light guide plate and an optical membrane set located on the light emitting side of the light guide plate. The face, opposite to the light emitting side, of the light guide plate is a lattice point face with lattice points, the lattice point face is provided with a reflecting layer, the light guide plate and the optical membrane set are bonded and fixed through a first transparent bonding layer, and optical membranes of the optical membrane set are bonded and fixed through second transparent bonding layers. According to the technical scheme, due to the fact that the reflecting layer is directly arranged on the lattice point face of the light guide plate and the light guide plate and the optical membrane set are fixed together in a bonding mode, the optical module is of an integrated structure, and when the optical module is assembled to the backlight module, the integrated optical module only needs to be located at a time. Thus, the locating accuracy of the optical module is improved, the convenience for assembling the backlight module is also improved, and thus the production efficiency of products is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an optical component, a backlight module and a display device. Background technique [0002] Liquid crystal displays are widely used in devices such as monitors, notebook computers, digital cameras, projectors, and LCD TVs due to their advantages of lightness, thinness, low radiation, and high-definition display. Liquid crystal display is a kind of non-self-luminous display, which must display images with the help of backlight module. Therefore, the development of backlight technology is very important to the performance of liquid crystal display. However, with the increasing demand for larger size of liquid crystal display, traditional backlight module The proportion of cost is also increasing. [0003] Such as figure 1 as shown, figure 1 It is a structural schematic diagram of the optical assembly of the existing backlight module, the optical assembly includes a reflection ...

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Problems solved by technology

[0003] like figure 1 as shown, figure 1 It is a structural schematic diagram of an optical assembly of an existing backlight module, which includes a reflective sheet 1, a light guide plate 2, a diffusion sheet 3, a prism sheet 4, and a protective sheet 5 arranged sequentially from bottom to top, wherein the diffusion sheet 3 , the prism sheet 4 and the protective sheet 5 form an optical film group. When the backlight module is assembled, each optical component in the optical assembly needs to be positioned and installed in the backplane respectively. Since each optical component needs to be positioned, it is easy to cause positioning. Inaccurate; in addition, after the backlight module is assembled, there are also gaps between the various optical components, especially the gap between the light guide plate 2 and the diffuser 3 is relatively large, and it is easy to cause scratches or damage during the mechanical test. Foreign matter and other issues; in addition, during the assembly process of optical components, due to the involvement of multiple optical components, poor assembly problems are also prone to occur

[0004] The main defect of the prior art is that due to the large number of optical components in the optical assembly, the positioning accuracy is reduced, resulting in difficulty in assembling the backlight module, resulting in a reduction in product production efficiency

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