Optical composite film and preparation method thereof

An optical composite film and optical film technology, applied in optics, optical components, nonlinear optics, etc., can solve the problem that composite films cannot take into account the brightness gain, covering and de-interference, etc., to achieve excellent de-interference performance and improve brightness. Amplification effect, effect of reducing manufacturing cost

Pending Publication Date: 2020-07-24
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem that the existing composite film cannot take into account luminance gain, covering and interference resolution, the present invention provides an optical composite film and its preparation method

Method used

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  • Optical composite film and preparation method thereof
  • Optical composite film and preparation method thereof
  • Optical composite film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] Such as image 3 As shown, the present invention provides an optical composite film, the optical composite film comprising: a first layer of optical film and a second layer of optical film; the first layer of optical film is placed above the second layer of optical film, the two through The bonding layer 52 is bonded together; the first layer of optical film includes the microlens structure layer 51, and the first layer of substrate layer 50; the second layer of optical film includes the prism layer 61 in sequence, and the second layer of base layer Material layer 60, and back coating 62.

Embodiment 2-10

[0091] For the optical composite film provided in Example 1, the technical parameters are shown in Table 1.

[0092] The technical parameters of Embodiment 1-10 are shown in Table 1-1 and Table 1-2 below.

[0093] The technical parameters of the first layer of optical film of the optical composite film that table 1-1 embodiment 1-10 provides

[0094]

[0095] Note: The refractive index of the prism resin generally refers to the refractive index of the glue before curing, and the index that can be detected is also the refractive index before curing, so it can also be called the refractive index of the resin finger liquid.

[0096] The technical parameters of the second optical film and the bonding layer of the optical composite film provided in Table 1-2 Examples 1-10

[0097]

[0098]

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Abstract

The invention relates to the field of an optical film for a backlight module, in particular to an optical composite film and a preparation method thereof. In order to solve the problem that an existing composite film cannot realize luminance gain, covering performance and interference relieving at the same time, the invention provides the optical composite film and the preparation method thereof.The optical composite film comprises a first layer of optical film and a second layer of optical film, wherein the first layer of optical film is arranged above the second layer of optical film; the first layer of optical film and the second layer of optical film are bonded together through an attaching layer; the first layer of optical film sequentially comprises a micro lens structure layer anda first layer of substrate layer; and the second layer of optical film sequentially comprises a prism layer, a second layer of substrate layer and a back coating layer. The optical composite film provided by the invention has the advantages that the luminance gain effect can be improved; a good covering effect is achieved; and meanwhile, excellent interference relieving performance is realized. Byusing the preparation method of a micro lens film provided by the invention, the production cost of the micro lens structure is greatly reduced.

Description

technical field [0001] The invention relates to the field of optical films for backlight modules, in particular to an optical composite film and a preparation method thereof. Background technique [0002] Optical films with brightness enhancement and diffusion functions in the backlight module generally include three types: brightness enhancement film, microlens film, and diffusion film. With the development of liquid crystal display towards the trend of "large size" and "light and thin" in recent years, the demand for high-performance optical films will increase greatly. Under the current trend of ultra-thin optical displays, how to design suitable products to integrate the backlight module Further thinning is a topic that various component factories have begun to consider. Therefore, the optical compounding of enhancement film, microlens film, and diffusion film has become a new research focus because it can adapt to the current trend of ultra-thinning and large-scale. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02F1/13357G02B5/02
CPCG02F1/133504G02F1/133606G02B5/0236G02B5/0242G02B5/0268G02B5/0278G02F1/133507G02F1/133607
Inventor 李刚余洋张毅于振江陈胜叶群朱建辉顾春红张彦唐海江
Owner NINGBO EXCITON TECH
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