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Quantum dot wide-color-gamut polyester film for backlight module, brightness enhancement film and diffusion film

A backlight module, quantum dot technology, applied in optics, optical components, instruments, etc., can solve problems such as low color gamut range

Active Publication Date: 2016-11-23
NINGBO CHANGYANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the color gamut of the existing liquid crystal display is low, the invention provides a kind of quantum dot wide color gamut polyester film for backlight module

Method used

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  • Quantum dot wide-color-gamut polyester film for backlight module, brightness enhancement film and diffusion film
  • Quantum dot wide-color-gamut polyester film for backlight module, brightness enhancement film and diffusion film
  • Quantum dot wide-color-gamut polyester film for backlight module, brightness enhancement film and diffusion film

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Embodiment 1

[0097] The present invention provides a wide color gamut brightness enhancement film. The brightness enhancement film includes a substrate layer and a brightness enhancement structure layer. The substrate layer is a quantum dot wide color gamut polyester film for backlight modules provided by the present invention, wherein The ratio of layer A is 85% bright polyester chips, 15% anti-blocking masterbatch, the thickness of layer A is 10 microns; the ratio of layer B is bright polyester chips 70%, quantum dot masterbatch 30%, the content of quantum dot powder in the quantum dot masterbatch is 10%, the red quantum dot particle size in the quantum dot masterbatch is 6nm, the green quantum dot particle size is 2nm, and the weight ratio of red and green quantum dots is 2 : 5 (red: green), the thickness of the B layer is 168 microns, and the total thickness of the finished product is 188μm. The barrier layer is a polyether polyurethane barrier layer made by online coating technology wit...

Embodiment 2

[0101] The present invention provides a wide color gamut brightness enhancement film. The brightness enhancement film includes a substrate layer and a brightness enhancement structure layer. The substrate layer is a quantum dot wide color gamut polyester film for backlight modules provided by the present invention, wherein The proportion of layer A is 85% bright polyester chips, 15% anti-blocking masterbatch, and the thickness of layer A is 10 microns; the proportion of layer B is bright polyester chips 70% and quantum dot masterbatch 30 %, the content of quantum dot powder in the quantum dot masterbatch is 10%, the red quantum dot particle size in the quantum dot masterbatch is 6nm, the green quantum dot particle size is 3nm, and the ratio of red and green quantum dots is 2:5 (Red: Green), the thickness of the B layer is 168 microns, and the total thickness of the finished product is 188 μm. The barrier layer is a polyether polyurethane barrier layer made by in-line coating tec...

Embodiment 3

[0105] The present invention provides a wide color gamut brightness enhancement film. The brightness enhancement film includes a substrate layer and a brightness enhancement structure layer. The substrate layer is a quantum dot wide color gamut polyester film for backlight modules provided by the present invention, wherein The proportion of layer A is 85% bright polyester chips, 15% anti-blocking masterbatch, and the thickness of layer A is 10 microns; the proportion of layer B is bright polyester chips 70% and quantum dot masterbatch 30 %, the content of quantum dot powder in the quantum dot masterbatch is 10%, the red quantum dot particle size in the quantum dot masterbatch is 5nm, the green quantum dot particle size is 2.5nm, and the ratio of red and green quantum dots is 2: 5 (red: green), the thickness of the B layer is 168 microns, and the total thickness of the finished product is 188 μm. The barrier layer is a polyether polyurethane barrier layer made by in-line coating ...

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Abstract

The invention relates to an optical film, and particularly relates to a quantum dot wide-color-gamut polyester film for a backlight module. The quantum dot wide-color-gamut polyester film for the backlight module is provided by the invention in order to solve a problem that an existing liquid crystal display is low in color gamut range. The polyester film comprises a base layer, wherein both sides of the base layer are provided with a barrier layer; the base layer comprises a quantum dot layer and an anti-sticking layer, and the anti-sticking layer is located at two sides of the quantum dot layer; and the base layer is of an ABA three-layer co-extrusion structure, the A-layer is the anti-sticking layer, and the B-layer is the quantum dot layer. The quantum dot layer comprises the following components in raw material: 50-90% of a super bright polyester chip and 10-50% of a quantum dot master batch. The anti-sticking layer comprises the following components: 80-90% of the super bright polyester chip and 10-20% of an anti-sticking master batch. The percentage is a percentage by weight. The brightness enhancement film or the diffusion film is prepared at the surface of the polyester film. The prepared brightness enhancement film or the diffusion film can enable a backlight source to have high brightness and a high NTSC value.

Description

Technical field [0001] The invention relates to the technical field of optical films, in particular to a quantum dot wide color gamut polyester film, a brightness enhancement film and a diffusion film for a backlight module. Background technique [0002] Wide color gamut displays mainly refer to those whose measured color gamut can reach more than 90% of NTSC. The larger the color gamut, the more colors the device can show, and the better the effect. The NTSC color gamut range of current ordinary displays is 65% to 75%. [0003] In order to increase the color gamut of liquid crystal displays, quantum dot technology is gradually being applied to displays. Quantum dot display technology has no size limit and can be used on small screens or TV screens over 80 inches. At present, there are three main development directions for using quantum dot technology to improve the color gamut of displays: "On-chip" method, "On-edge" method and "On-surface" method, as follows: [0004] (1) The "O...

Claims

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Application Information

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IPC IPC(8): G02B5/02G02B5/04G02B1/04
Inventor 金亚东张强
Owner NINGBO CHANGYANG TECH
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