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An arched diffusion film for improving luminance and concealer atomization performance and its preparation method

A technology of diffusing film and concealer, applied in the field of optical film, can solve the problems of light diffusing film reducing brightness, glare and other problems

Active Publication Date: 2021-10-29
CHANGZHOU HUAWEI ADVANCED MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects that the light diffusion film in the prior art can reduce the luminance and cause glare problems, the present invention provides a new arched diffusion film with improved luminance and concealer atomization performance and a preparation method thereof

Method used

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  • An arched diffusion film for improving luminance and concealer atomization performance and its preparation method
  • An arched diffusion film for improving luminance and concealer atomization performance and its preparation method
  • An arched diffusion film for improving luminance and concealer atomization performance and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0047] Such as Figure 1-6 As shown, an arched diffuser film for improving luminance and concealer atomization performance includes a base material layer 1 and a diffuser layer 2. Groove structures 11 are distributed in an array on the upper surface of the base material layer 1, and the groove structure The depth h1 of 11 is 20 μm, and the distance w is 40 μm. Diffusion particles 21 are dispersed in the diffusion layer 2. The particle diameter of the diffusion particles 21 is 5-15 μm. The upper surface of the diffusion layer 2 is upwardly convex. In an arched structure, the height difference between the two ends of the diffusion layer 2 and the middle height is h2, and h2 is 10 μm.

[0048] A method for preparing an arched diffuser film that improves luminance and concealer atomization performance, comprising the following preparation steps:

[0049] (a) selecting PC or PMMA or PET or PS as a raw material, and molding the raw material through a three-layer tape-casting co-ext...

Embodiment 2

[0066] Such as Figure 1-6 As shown, an arched diffuser film for improving luminance and concealer atomization performance includes a base material layer 1 and a diffuser layer 2. Groove structures 11 are distributed in an array on the upper surface of the base material layer 1, and the groove structure The depth h1 of 11 is 35 μm, and the distance w is 70 μm. Diffusion particles 21 are dispersed in the diffusion layer 2. The particle diameter of the diffusion particles 21 is 5-15 μm. The upper surface of the diffusion layer 2 is upwardly convex. In an arched structure, the height difference between the two ends of the diffusion layer 2 and the middle height is h2, and h2 is 20 μm.

[0067] A method for preparing an arched diffuser film that improves luminance and concealer atomization performance, comprising the following preparation steps:

[0068] (a) selecting PC or PMMA or PET or PS as a raw material, and molding the raw material through a three-layer tape-casting co-ext...

Embodiment 3

[0085] Such as Figure 1-6 As shown, an arched diffuser film for improving luminance and concealer atomization performance includes a base material layer 1 and a diffuser layer 2. Groove structures 11 are distributed in an array on the upper surface of the base material layer 1, and the groove structure The depth h1 of 11 is 27 μm, and the distance w is 54 μm. Diffusion particles 21 are dispersed in the diffusion layer 2. The particle diameter of the diffusion particles 21 is 5-15 μm. The upper surface of the diffusion layer 2 is upwardly convex. In an arched structure, the height difference between the two ends of the diffusion layer 2 and the middle height is h2, and h2 is 15 μm.

[0086] A method for preparing an arched diffuser film that improves luminance and concealer atomization performance, comprising the following preparation steps:

[0087] (a) selecting PC or PMMA or PET or PS as a raw material, and molding the raw material through a three-layer tape-casting co-ext...

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Abstract

The invention discloses an arch-shaped diffusion film for improving luminance and concealing atomization performance and a preparation method thereof, which comprises a base material layer and a diffusion layer, groove structures are distributed in an array on the upper surface of the base material layer, and diffusion films are dispersed in the diffusion layer. Particles, the upper surface of the diffusion layer is in the shape of an upward convex arch. In the above-mentioned arched diffusion film structure, the light source enters the film layer from the bottom of the arched diffusion film, and through the groove structure of the substrate layer, a better light concentrating effect can be obtained and the luminance of the arched diffusion film can be improved. The groove structure can better screen the diffused particles, so that the diffused particles can be distributed more evenly and the haze can be further improved. In addition, the diffused particles distributed in an orderly manner can obtain lower roughness and uniform optical performance, which improves the fogging performance of the concealer, and the diffused layer finally forms an arch-like structure surface to further improve the light-gathering effect, which not only improves the luminance, In addition, the glare problem existing in the existing diffusion film is avoided.

Description

technical field [0001] The invention relates to the technical field of optical films, in particular to an arched diffuser film for improving luminance and concealing atomization performance and a preparation method thereof. Background technique [0002] Light-diffusing film is widely used in liquid crystal displays, mobile phones, digital cameras and other electronic products. The light-diffusing film has the function of diffusing light, that is, the light will be scattered on its surface, so that the light will be diffused softly and evenly. [0003] The existing light diffusion film mainly plays the role of concealing, uniform light source, and correcting the diffusion angle in the backlight structure. However, the basic structure of most light diffusion films is to coat optical astigmatism on both sides of a transparent flat substrate such as a PET substrate. Particles, although this can increase the area of ​​light radiation, it reduces the light intensity per unit area,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/02
CPCG02B5/0242G02B5/0268
Inventor 周孝成丁利明王嫣红
Owner CHANGZHOU HUAWEI ADVANCED MATERIAL