Optical thin film with non-spherical particle

An optical film, aspherical technology, applied in the parts of lighting devices, lighting devices, refractors, etc., can solve the problems of easy aggregation or adhesion of spherical particles, reduced light penetration, decreased brightness, etc. The chemical effect will not be reduced, the light penetration will be improved, and the brightness will be improved.

Inactive Publication Date: 2008-12-03
ETERNAL MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to achieve a better atomization effect in the technology, most of the resin coatings are made of spherical particles. However, the spherical particles are easy to aggregate or adhere to each other, which reduces the light penetration and reduces the brightness.

Method used

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  • Optical thin film with non-spherical particle
  • Optical thin film with non-spherical particle
  • Optical thin film with non-spherical particle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Use RDS applicator stick #5 to coat paint A on the surface of a transparent PET film [U34, Toray Company] with a thickness of 188μm. After drying at 80℃ for 1 minute, use a UV exposure machine [Fusion UV, F600V, 600W / inch, H-type light source], power is set to 100%, speed is 15m / min, energy beam is 200mJ / cm 2 , After drying to form a resin coating. The film thickness test was performed, and the total thickness obtained was about 190.2 μm.

Embodiment 2

[0087] Coating B was coated on the surface of a transparent PET film [U34, Toray Company] with a thickness of 188μm with RDS smear stick #5, and then dried and cured under the conditions of Example 1 to form a resin coating on the substrate. The film thickness test was performed, and the total thickness obtained was about 190.2 μm.

Embodiment 5

[0093] Use RDS applicator rod #5 to apply paint A on the diffuser with a thickness of 213μm [ DI-780A, Eternal Corporation], dried and cured under the conditions of Example 1 to form a resin coating on the substrate. The film thickness test was performed, and the total thickness obtained was about 215.2 μm.

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Abstract

The invention discloses an optical thin film with non-spherical particles, which comprises a flexible backing material, a first surface with a concave convex microstructure, and a second surface containing a resin coating layer, wherein the resin coating layer contains a plurality of non-spherical particles with maximal size of 1-20 micrometers and aspect ratio of 1.2-1.8. The inventive optical thin film replaces the non-spherical particles for the spherical particles in the prior art to prepare the resin coating layer. The inventive optical thin film can improve the light penetration degree, so as to prevent waste of light source and improve the brilliance of the optical thin film; and the non-spherical particles are not easy to fall off, the atomization effect is not reduced, and the optical characteristics may not be adversely influenced. The inventive resin coating layer has good antistatic property and high hardness, so as to prevent the optical thin film from being scratched or damaged or adhered with dust during transportation or operation process.

Description

Technical field [0001] The invention relates to an optical film with non-spherical particles, which contains a resin coating of non-spherical particles, which can be used in a lamp source device and has the effect of increasing brightness. Background technique [0002] Improving brightness is very important for many light source devices, such as advertising light boxes and flat-panel display backlight modules. However, using too many light sources will consume too much energy, which does not meet the current environmental protection requirements. Therefore, it has become the most economical and simple energy-saving solution to use a variety of optical films in the light source device to increase the brightness to make the light source the most efficient application without changing any component design or consuming additional energy. [0003] The structure of a commonly used optical film includes at least a substrate and an optical layer located on a surface of the substrate and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V5/00
Inventor 汪乙嘉
Owner ETERNAL MATERIALS CO LTD
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