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A kind of laminated reflective film and preparation method thereof

A reflective film and lamination technology, used in chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problems of easy brittle cracking, poor stiffness of the reflective film, etc., to reduce collapse, improve stiffness and Toughness, the effect of improving stiffness and toughness

Active Publication Date: 2019-09-13
NINGBO CHANGYANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defects of poor stiffness and brittleness of the existing reflective film, the present invention provides a laminated reflective film and its preparation method

Method used

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  • A kind of laminated reflective film and preparation method thereof
  • A kind of laminated reflective film and preparation method thereof
  • A kind of laminated reflective film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 As shown, the present invention provides a bonded reflective film. The laminated reflective film includes a substrate layer 3 , a glue layer 2 and a reflective layer 1 , and the reflective layer 1 is laminated on the substrate layer 3 through the glue layer 2 .

[0041] The reflective layer is an ABA three-layer structure, the A layer is composed of polyester resin and inorganic particles, the ratio of the A layer is 98% PET chips, 2% silica particles; the B layer is composed of polyester resin, Composed of inorganic particles, incompatible resins, toughening resins, chain extenders, nucleating agents and dispersants, the ratio of layer B is 74% PEN chips, the intrinsic viscosity of PEN chips is 0.80dL / g, 10% alumina particles , 10% polyethylene, 3% MAH grafted LDPE (grafting rate ≥ 0.5%), 1% polycarbodiimide, 1% NA-10 (Japan Asahi Denka), 1% PEG (molecular weight 50000), the The percentages are percentages by weight. Wherein, the thickness of a laye...

Embodiment 2

[0047] As in the laminated reflective film provided in Example 1, the thickness of the substrate layer is 100 microns.

[0048] See Table 1 for the related properties of the laminated reflective film provided in Example 2.

Embodiment 3

[0050] As in the laminated reflective film provided in Example 1, wherein the proportion of the reflective layer A layer is 96% PET slices, 4% silicon dioxide particles; the proportion of B layer is 72% PEN slices, and the intrinsic viscosity of the PEN slices is 0.80dL / g, 11% alumina particles, 11% polyethylene, 3% MAH grafted LDPE (grafting rate ≥ 0.5%), 1% polycarbodiimide, 1% NA-10 (Japan Asahi Denka), 1% PEG (molecular weight: 40,000), the percentage is by weight. Wherein, the thickness of a layer A accounts for 10% of the total thickness of the reflective layer, and the thickness of the B layer accounts for 80% of the total thickness of the reflective layer. The reflective layer has a thickness of 150 microns.

[0051] The substrate layer is a PET material with a thickness of 50 microns;

[0052] See Table 1 for the related properties of the bonded reflective film provided in Example 3.

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Abstract

The invention relates to the technical field of liquid crystal display, in particular to a laminated reflective film applied to a backlight module of a liquid crystal display. In order to solve the defect of poor stiffness of the reflective film in the existing liquid crystal display backlight module, the invention provides a laminated reflective film with high stiffness and a preparation method thereof. The attached reflective film includes a substrate layer, a glue layer and a reflective layer, and the reflective layer is bonded on the substrate layer through the glue layer; the substrate layer is a polyester transparent film with a thickness of 50-300 micron; the reflective layer is a white reflective film with a thickness of 100-300 microns. The high-stiffness laminated reflective film provided by the invention is suitable for large-sized liquid crystal display devices, greatly reduces defects such as collapse, and has good toughness at the same time.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a laminated reflective film applied to a backlight module of a liquid crystal display and a preparation method thereof. Background technique [0002] As the screen displays of mobile phones and TVs are developing towards large-screen displays, the demand for liquid crystal displays in the market is huge. These liquid crystal displays (LCD) provide illumination light by setting a surface light source called a backlight on the inside. to display. The backlight is mainly composed of light source, light guide plate, and backlight module. The reflective film plays an important role in gaining brightness in the entire backlight module. [0003] At present, most of the reflective films on the market are formed by adding inorganic particles or incompatible resin particles, stretching to generate cells, and using these cell microstructures to reflect light. Due to the limi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/36B32B27/08B32B27/18B32B7/12B32B37/12G02B5/08
Inventor 金亚东刘海波
Owner NINGBO CHANGYANG TECH
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