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Quantum dot film, backlight unit and display device

A quantum dot film and quantum dot technology, applied in the display field, can solve the problem of large invalid side of the quantum dot layer, achieve the effect of alleviating the problem of invalid side, reducing cost, and improving water and oxygen barrier performance

Active Publication Date: 2019-12-10
NANJING TECH CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present application is to provide a quantum dot film, a backlight unit and a display device, so as to solve the problem that the invalid side of the quantum dot layer is too large in the prior art

Method used

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  • Quantum dot film, backlight unit and display device
  • Quantum dot film, backlight unit and display device
  • Quantum dot film, backlight unit and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The quantum dot film includes a quantum dot layer, the quantum dot layer, such as figure 1 As shown, the quantum dot layer includes a first red quantum dot region 21 and a green quantum dot region 22 . Wherein, the first red quantum dot region 21 is the first red quantum dot region, and the first red quantum dot region is formed by red quantum dot resin, and the red quantum dot resin includes red quantum dots, a first matrix, an additive and a thermosetting agent, Among them, the red quantum dot has a CdSe / CdS core-shell structure, the diameter of the CdSe core is 4nm, and the ligand is oleate. The matrix is ​​bisphenol A epoxy resin, and its weight percentage is 98.8%; the additive is spherical titanium dioxide diffusion particles with a particle size of 10 μm, and its weight percentage is 0.2%; the thermosetting agent is ethylenediamine, and its weight percentage is 0.9%. Green quantum dot area 22 is formed by green quantum dot resin, and above-mentioned green quantu...

Embodiment 2

[0059] The difference from Example 1 is that the quantum dot film also includes a first barrier film 10 and a second barrier film 30, and the specific structure is as Figure 6 As shown, the first barrier film 10 and the second barrier film 30 are both alumina barrier films, and their water permeability is 0.1g / m 2 ·day, its oxygen permeability is 0.01cc / m 2 day.

Embodiment 3

[0061] The difference from Example 2 is that the first matrix is ​​polymethacrylate resin.

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Abstract

The invention provides a quantum dot film, a backlight unit and a display device. The quantum dot film comprises a quantum dot layer. The quantum dot layer comprises a first red quantum dot area and a green quantum dot area. The first red quantum dot area has a closed edge and is arranged in an edge area of the quantum dot film. The first red quantum dot area comprises first red quantum dot resin. The red quantum dot resin comprises red quantum dots and a first substrate. The first substrate comprises any one of epoxy resin, acrylate resin, organic siloxane resin and polyurethane resin. The green quantum dot area is arranged in a non-edge area of the quantum dot layer and comprises green quantum dot resin. The green quantum dot resin comprises green quantum dots and a second substrate. The second substrate comprises acrylate resin. By means of the quantum dot film, the problem of ineffective edges can be relieved.

Description

technical field [0001] The present application relates to the display field, in particular, to a quantum dot film, a backlight unit and a display device. Background technique [0002] The liquid crystal backlight unit in the prior art starts to use quantum dot film to improve the display color gamut, but due to the insufficient chemical stability of the quantum dot itself, it is easy to react with water and oxygen, resulting in failure and denaturation of the quantum dot, which affects the luminous performance of the device. In order to prevent water and oxygen from invading the quantum dots, a barrier film is usually arranged on the upper and lower sides of the quantum layer, and the barrier film can block the external water and oxygen. [0003] The higher the water and oxygen barrier rate, the higher the price of the barrier film, but the four sides of the quantum dot layer are not covered by the barrier film, and invalid edges are prone to appear. Therefore, a low-cost so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133617G02F1/133614
Inventor 康永印方龙赵飞
Owner NANJING TECH CORP LTD
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