Quantum dot film and preparation method therefor

A quantum dot film and quantum dot technology, applied in the field of quantum dot film and its preparation, can solve the problem of high production cost of quantum dot film, and achieve the effect of not easy to wrinkle and low production cost

Inactive Publication Date: 2016-08-17
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 this application is to provide a quantum dot film and its preparation method, to solve the problem of high preparation cost of quantum dot film in the prior art

Method used

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  • Quantum dot film and preparation method therefor
  • Quantum dot film and preparation method therefor
  • Quantum dot film and preparation method therefor

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preparation example Construction

[0032] In the above-mentioned process of preparing the quantum dot film, the liquid quantum dot colloid is first solidified to form a quantum dot layer, and then other film layers are arranged on the quantum dot layer. The first curing step avoids the flow of the liquid quantum dot colloid, and the subsequent The preparation process does not require extremely precise molds and precise processing technology to control its uniformity, which makes the preparation cost of the quantum dot film lower, and the quantum dot layer is first cured to avoid the quantum dot layer and other structures in the quantum dot film. The tension of each layer in the quantum dot film caused by the solidification of the layers together makes the quantum dot film less prone to wrinkling. Since wrinkles will affect the concentration of quantum dots and the thickness of the quantum dot layer, the absence of quantum dots will form bad spots, and the uneven concentration of quantum dots will cause color une...

Embodiment 1

[0066] The preparation method process of quantum dot film comprises:

[0067] In the first step, the liquid quantum dot colloid is placed in the mold, and after the liquid quantum dot colloid flows stably, the liquid quantum dot colloid is thermally cured to form the quantum dot layer 10, wherein the thermal curing temperature is 150°C, and the thermal curing The time is 15s.

[0068] In the second step, the above-mentioned quantum dot layer is separated from the above-mentioned mold, and the above-mentioned quantum dot layer exposes the opposite first surface and second surface;

[0069] In the third step, the first protective layer 17 is formed on the first surface, the second protective layer 18 is formed on the second surface, and finally the quantum dot film is formed. The specific process is as follows:

[0070]Specifically, a first adhesive layer 15 is provided on the first surface, a first protective layer 17 is provided on the surface of the first adhesive layer 15 a...

Embodiment 2

[0073] The difference from Example 1 is that the third step is different. The first protective layer 17 is directly formed on the first surface, and the second protective layer 18 is formed on the second surface. Both the first protective layer 17 and the second protective layer 18 are PVA. layer, the thickness of which is 2 μm, thermally curing the first protective layer 17 and the second protective layer 18 to form figure 2 For the quantum dot film shown, the thermal curing temperature of the first protective layer and the second protective layer is 120° C., and the curing time is 2 minutes.

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Abstract

The invention provides a quantum dot film and a preparation method therefor. The preparation method for the quantum dot film comprises the steps of step S1, putting liquid quantum dot glue on a carrier or in the carrier, and solidifying the liquid quantum dot glue to form a quantum dot layer, wherein the quantum dot layer has a first surface and a second surface which are arranged in opposite; the carrier is in contact with the first surface; and the surface opposite to the first surface is the second surface. In the preparation process of the quantum dot film, the liquid quantum dot glue is solidified firstly to form the quantum dot layer; then other film layers are arranged on the quantum dot layer; due to the solidifying step in advance, the flowing of the liquid quantum dot glue is avoided, so that an extremely accurate die and an accurate processing technology for controlling the uniformity are not required in the subsequent preparation process, and a relatively low preparation cost of the quantum dot film is realized; and in addition, due to the quantum dot layer formed by solidification in advance, the quantum dot film is not wrinkled easily.

Description

technical field [0001] The present application relates to the display field, in particular, to a quantum dot film and a preparation method thereof. Background technique [0002] Quantum dot display technology has attracted more and more attention, and quantum dot film is one of the most important application forms. In the backlight unit of the display, the blue light emitted by the LED light source is converted into green and red light through the quantum dot film, and mixed with the transmitted blue light into white light to meet the display requirements of high color gamut. [0003] The preparation method of the above-mentioned quantum dot film is generally: the liquid quantum dot glue is coated on the first layer of barrier film, and then covered with the second layer of barrier film to form a sandwich structure with the quantum dot layer in the middle, and then heated or ultraviolet or other Combined curing molding. The heat generated by curing can easily cause the ten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/50
CPCH01L33/505H01L2933/0041
Inventor 康永印杜向鹏郑斌赵飞
Owner NANJING TECH CORP LTD
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