Warping-resistant optical thin film, preparation method thereof and display device using optical thin film

A technology for optical thin films and display devices, which is applied in optics, nonlinear optics, instruments, etc., can solve the problems of wave formation and warping easily, and achieve the effects of easy operation, low coating shrinkage and simple process
CN102928900BActive Publication Date: 2015-06-24NINGBO EXCITON TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO EXCITON TECH
Publication Date
2015-06-24

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Abstract

The invention relates to the technical field of optical thin films, in particular to a warping-resistant optical thin film, a preparation method thereof and a display device using the optical thin film, and aims to overcome the defects that a film surface of the conventional diffusion film is easy to warp, and raised grains are generated. The optical thin film comprises a transparent base plate; one side of the transparent base plate is provided with an upper diffusion coating, and the other side of the transparent base plate is provided with a lower diffusion coating; the thickness of the upper diffusion coating is 1 to 50 mu m; and the absolute value of the difference between the thickness of the lower diffusion coating and the upper diffusion coating is less than or equal to 3 mu m. The provided warping-resistant optical thin film has the advantages of the conventional diffusion film; the coatings of the film are low in shrinkage percentage; the warping phenomena can be reduced obviously; the preparation method is simple and easy to operate; and the optical thin film is used as the diffusion film in the display device, a good screen effect can be achieved, and shadows can be avoided.
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Description

technical field

[0001] The invention relates to the technical field of optical films, in particular to an anti-warping optical film, a preparation method thereof and a display device using the optical film. Background technique

[0002] With the popularity of a series of digital devices such as mobile phones, laptops, tablets, cameras and LCD TVs, liquid crystal display technology has become more and more important. The diffusion film is an essential part of the liquid crystal display device, and its main function is to make the light emitted by the lamp tube into a secondary light source with larger area, higher brightness, better uniformity and stable chromaticity.

[0003] The quality of the diffusion film directly affects the effect of the display screen. During the use of the liquid crystal display, a part of heat will inevitably be released, causing the ambient temperature of the diffusion film to reach above 50°C. During the process of continuous heating and returnin...

Claims

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