Preparation method of color filter film based on microfluidic and quantum dot technology

A color filter film, quantum dot technology, applied in optics, nonlinear optics, instruments, etc., can solve the problem of color purity decline, achieve good white balance, achieve white balance, and easy to operate.

Inactive Publication Date: 2018-12-25
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the emission spectrum of these backlights has a relatively wide half-peak width in the red and green bands, resulting in a decrease in the color purity of the final color.

Method used

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  • Preparation method of color filter film based on microfluidic and quantum dot technology
  • Preparation method of color filter film based on microfluidic and quantum dot technology
  • Preparation method of color filter film based on microfluidic and quantum dot technology

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preparation example Construction

[0049] The invention provides a method for preparing a color filter film based on microfluidics and quantum dot technology, comprising the following steps,

[0050] S01: Design a first template and a second template with patterns according to the pixel structure of the display screen;

[0051] S02: Prepare a first PDMS template and a second PDMS template with microchannels by photolithography and soft printing, and punch holes in the first PDMS template and the second PDMS template to prepare liquid inlet holes and liquid outlet holes;

[0052] S03: Prepare quantum dot inks with different luminous wavelengths;

[0053] S04: Press the first PDMS template and the transparent substrate (the transparent substrate is glass or quartz), and use the microfluidic method to inject the first quantum dot ink into the first PDMS template through the liquid inlet hole and connect with the liquid inlet hole microchannel, and curing;

[0054] S05: Separate the first PDMS template from the t...

Embodiment 1

[0072] Such as figure 1 As shown, a method for preparing a color filter film based on microfluidics and quantum dot technology is characterized in that it comprises the following steps:

[0073] S01: Design a patterned graphic first template 103 and a graphic second template 112 according to the pixel structure of the display screen;

[0074] S02: Prepare PDMS templates by photolithography and soft printing methods, and punch holes on the templates to prepare liquid inlet holes and liquid outlet holes;

[0075] S03: Prepare red and green quantum dot inks;

[0076] S04: Pressing the first PDMS template and the transparent substrate 01, using a syringe pump to press the first quantum dot ink 04 into the PDMS channel, and curing;

[0077] S05: Separate the PDMS template from the transparent substrate 01, align and press the second PDMS template with the transparent substrate provided with the first type of quantum dots, and use a syringe pump to press the second type of quantum...

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Abstract

The invention relates to a preparation method of a color filter film based on microfluidic and quantum dot technology. The preparation method comprises the steps that microfluidic templates are designed, liquid inlet holes and liquid outlet holes are prepared, quantum dot ink with different emission wave lengths is prepared, the quantum dot ink is injected into PDMS channels by using a microfluidic method and curing is performed, and a water oxygen barrier film with a Distributed Bragg Reflector (DBR) structure is prepared on the surface of the color filter film. The preparation method has a simple process, simple operation, a high speed, low cost, achievement of high color purity, high color rendering index and wide color gamut and a remarkable effect.

Description

technical field [0001] The invention relates to the field of photoelectric display, in particular to a method for preparing a color filter film based on microfluidic and quantum dot technologies. Background technique [0002] The liquid crystal display is a non-active light-emitting type, and its color display must provide a light source through the internal backlight module or external ambient incident light, and then cooperate with the driver IC and liquid crystal control to form a grayscale display, and then pass through the R, G of the color filter. , the B color layer provides hue to form a color display picture. It can be seen that the color filter is a key component of the colorization of the Liquid Crystal Display (Liquid Crystal Display). At present, TFT-LCD displays use blue LEDs and yellow phosphor white backlights with high color gamut CF, but this method has many disadvantages, such as low efficiency, low utilization of backlight, low transmittance of target li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335
CPCG02F1/133516
Inventor 周雄图翁雅恋张永爱郭太良严群林金堂叶芸
Owner FUZHOU UNIV
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