Laminating film for display and display backlight module

Abstract

The invention relates to an optical film, and discloses a laminating film for a display. The laminated film comprises an atomization layer film, a base film and a prism layer film which are sequentially arranged from top to bottom. The prism layer film comprises a prism structure layer, the prism structure layer comprises a plurality of continuously-arranged prisms, and the prisms extend in the direction forming an included angle [theta]2 of 6-8 degrees with the reference direction with the production conveying direction of the laminated film production line as the reference direction. The invention further relates to a display backlight module. According to the prism layer film designed by the invention, the problem that lines on the liquid crystal display panel interfere with the laminating film can be solved. The interference-free effect is achieved, the applicability is wider, the interference problem of film layers such as the atomization layer film does not need to be solved by designing a rotating angle, the design complexity is reduced, the design is simpler, the subsequent production is easier and more accurate, and the product percent of pass is increased.

Description

technical field [0001] The invention relates to an optical film, in particular to a bonding film for a display and a display backlight module. Background technique [0002] With the development of liquid crystal display technology, the requirements for the size of the display, the backlight module and the stiffness of the laminating film are increasing, the product is also thinning, and the assembly requirements are becoming more and more simplified. Combination films such as +D (diffusion film combined with brightness-enhancing composite film + diffusion plate), POP+D (light-enhancing composite film + diffusion plate), among which the brightness of DOP composite film is low, which is not suitable for many high-resolution LCDs. The use and application of the display screen is limited. One of the technical solutions of the POP composite film is to use two mutually perpendicular high-transparency prisms to stick together. Although the brightness is high, it is easy to cause pr...

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Problems solved by technology

[0003] In the related art, the laminating film for liquid crystal display and the backlight module of liquid crystal display, the invention patent application with the patent number 201911417839.4 (hereinafter referred to as D1), includes the atomized layer film, base film, first prism layer film, The second prism layer film and the third prism layer film can still ensure the effects of no interference, no glare, and visual effects that meet the standard when the brightness reaches the effect of two light-enhancing films and two diffusion films. etc. all meet the requirements, but it uses three prism layers, which are easy to cause interference between prism layers, so it needs special design to avoid interference, resulting in more complicated design, higher production requirements, and higher cost. Applicable to LCD panels with a size below 55 inches, and for special cases such as LCD panels above 55 inches or without brackets, the stiffness cannot meet the requirements

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