Optical film

Abstract

The invention relates to an optical film which comprises a substrate layer and an optical structure layer. The optical structure layer is located on a first surface of the substrate layer; the optical structure layer comprises a plurality of closely-arranged convex blocks; and a surface of at least one of the plurality of convex blocks is extended to the substrate layer direction to form a groove. The optical film of the invention can improve the haze and yield rate of the optical film, and improve the wearproof resistance of the optical film.

Description

[0001] technical field [0002] The present invention relates to an optical film. [0003] Background technique [0004] In the field of display, optical films are widely used in liquid crystal display devices, plasma display devices and organic electroluminescence display devices. Optical film is used to gather light in front of the screen to improve display brightness. [0005] figure 1 Shown is a schematic structural diagram of an existing optical film, figure 2 shown as figure 1 Schematic diagram of the cross-sectional structure of the optical film along line A-A in . Please refer to figure 1 and figure 2 , the existing optical film includes a substrate layer 1 , an optical structure layer 2 and an atomized layer 3 . Wherein, the optical structure layer 2 is located on the first surface of the substrate layer 1 , and the atomized layer 3 is located on the second surface of the substrate layer 1 . The optical structure layer 2 is a plurality of closely adjac...

AI Technical Summary

Problems solved by technology

[0006] However, the optical structure layer 2 on the first surface of the existing optical film substrate layer 1 is a smooth hemispherical structure, so that the haze of the optical film is low, which cannot meet the needs of the display device. Set the atomized layer 3 on the second surface to increase the haze, but if the density of the atomized layer 3 is too high, it will affect the optical brightness

And the hemispherical structure is easily damaged, which affects the optical effect of the optical film

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