Quantum dot enhanced film and preparation method thereof, backlight, and display apparatus

A quantum dot enhanced film and display device technology, applied in lighting devices, chemical instruments and methods, components of lighting devices, etc., can solve problems such as low stability of quantum dots, fluorescence quenching, and reduced display effects

Inactive Publication Date: 2018-01-26
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Quantum dot materials are provided on the quantum dot film, but the stability of quantum dots in the existing quantum dot film is low, and the aggregation of quantum dot materials is easy to occur, and fluorescence quenching occurs, which reduces the display effect

Method used

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  • Quantum dot enhanced film and preparation method thereof, backlight, and display apparatus
  • Quantum dot enhanced film and preparation method thereof, backlight, and display apparatus
  • Quantum dot enhanced film and preparation method thereof, backlight, and display apparatus

Examples

Experimental program
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Effect test

preparation example Construction

[0054] As the third aspect of the present invention, a method for preparing a quantum dot reinforced film is provided, wherein, as figure 2 with image 3 As shown, the preparation method includes:

[0055] In step S210, the base layer 110 is provided; and

[0056] In step S220, a functional layer is formed on the base layer 110 to obtain the quantum dot enhanced film. The functional layer includes a limit layer 120 and quantum dots alternately stacked in a thickness direction of the quantum dot enhanced film. The material layer 130, the limit layer 120 includes a hydrotalcite material and / or a hydrotalcite-like material, and the quantum dot material layer 130 includes quantum dots.

[0057] As described above, the limiting layer 120 has a two-dimensional limiting function, which can maintain the distance between the quantum dots of the quantum dot material layer 130 within a predetermined range, prevent the quantum dots from gathering, and effectively prevent fluorescence quenching...

Embodiment approach

[0067] As a preferred implementation manner, step S221a may specifically include:

[0068] The first target piece is immersed in the MgAl-LDH nano colloidal solution for a first predetermined time.

[0069] The "first target" mentioned here may include only the base layer, or may include the base layer on which the quantum dot material layer and / or the precursor layer have been formed.

[0070] In the present invention, there is also no special requirement for the first predetermined time. Preferably, the first predetermined time is 5 minutes to 10 minutes.

[0071] In the present invention, the MgAl-LDH nano colloidal solution can be obtained commercially, or the MgAl-LDH nano colloidal solution can be prepared by itself. When choosing to prepare the MgAl-LDH nano colloidal solution by oneself, the preparation method includes the step of providing the MgAl-LDH nano colloidal solution, including:

[0072] S1, weigh 1.28gMg(NO 3 ) 2 ·6H 2 O, 0.938gAl(NO 3 ) 3 ·9H2O, 0.920gHMT, add hydro...

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PUM

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Abstract

The invention provides a quantum dot enhanced film. The quantum dot enhanced film comprises a matrix layer and a function layer, the function layer is formed on the matrix layer, at least one side ofthe matrix layer in the thickness direction is provided with the function layer, the function layer comprises limiting layers and quantum dot material layers alternatively arranged in a laminated manner along the thickness direction of the quantum dot enhanced film, each limiting layer comprises a hydrotalcite material and / or a hydrotalcite-like material, and each quantum dot material layer comprises quantum points. The invention also provides a backlight, a preparation method of the quantum dot enhanced film, and a display apparatus. When the quantum dot enhanced film is applied to the backlight, the phenomenon of fluorescence quenching does not easily occur.

Description

Technical field [0001] The present invention relates to the field of display devices, in particular to a quantum dot enhancement film, a preparation method of the quantum dot enhancement film, a backlight including the quantum dot enhancement film, and a display device including the backlight. Background technique [0002] With the development of display technology, display devices with quantum dot backlights have appeared. The quantum dot backlight includes a quantum dot film. The quantum dot film is provided with a quantum dot material, but the stability of the quantum dot in the existing quantum dot film is low, and the quantum dot material is prone to aggregation and fluorescence quenching, which reduces the display effect. [0003] Therefore, how to prevent the accumulation of quantum dot materials on the quantum dot film has become an urgent technical problem in this field. Summary of the invention [0004] The purpose of the present invention is to provide a quantum dot enh...

Claims

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Application Information

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IPC IPC(8): H01L33/50G02F1/13357
CPCH01L33/50C09K11/08C09K11/025G02F1/133617G02F1/133614G02F2202/36F21V9/30B05D1/18B05D7/582B32B2255/20B32B2255/28B32B2264/102B32B2264/104B32B2307/422B32B2457/20
Inventor 范国凌
Owner BOE TECH GRP CO LTD
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