Microstructure multifunction optical film diaphragm

Abstract

The invention discloses a micro-structure multi-functional optical film, comprising a light entry surface and a light exit surface which face each other; the light exit surface is provided with a plurality of micro-convex structures, wherein, the micro-convex structure is a semi-ellipsoid-similar structure which comprises a long shaft, a short shaft, a height, as well as four arc surfaces connecting the long shafts, the short shafts and the height; the four arc surfaces mutually intersect at four arc lines; the four arc lines intersect at the highest point of the micro-convex structure; the four arc surfaces intersect the light exit surface to form a closed semi-ellipsoid; and the long shafts of the micro-convex structures are arranged in a mutually parallel way. The micro-structure multi-functional optical film effectively integrates the effects of optical films of different types and helps to simplify the structure and optical design of backlight module groups so as to facilitate the manufacturing and reduce costs.

Description

technical field [0001] The invention relates to a microstructure multifunctional optical film, in particular to a microstructure multifunctional optical film applied to a liquid crystal display. Background technique [0002] The liquid crystal in the liquid crystal display panel itself does not have luminous properties, so in order to achieve the display effect, it is necessary to provide a light source device for the liquid crystal display panel to realize the display function, such as a backlight module (Back LightUnit). Its function is to provide a surface light source with sufficient brightness and uniform distribution to the LCD panel. According to the arrangement position of the light source in the backlight module, it can be divided into direct-light type and side-light type. The basic mechanism of the backlight module is the light emitted by the light source, through a series of optical effects such as diffusion, light concentration, etc., to provide a uniform surfa...

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Problems solved by technology

[0005] The prism sheet is an important component to improve the brightness of the front. It changes the direction of the light to achieve the light-collecting effect. Therefore, in order to improve the brightness, a single direction can increase the brightness by about 60%, and two overlapping vertical directions can increase the brightness by about 120%, but some parts will be sacrificed. angle of view

[0006] Due to the different functions and structures of the above optical diaphragms, the manufacturing processes and equipment used are different, which increases the manufacturing cost of the diaphragms.

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