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Printing device and manufacturing method of high-precision large-stretching OLED array based on island bridge type structure

A bridge structure, high-precision technology, applied in printing devices, printing, typewriters, etc., can solve problems such as restricting product ductility, flexibility and application scope.

Active Publication Date: 2021-03-02
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional microelectronics use relatively hard silicon substrates or flat glass. The shape of the product is fixed and hard. Although it is beneficial to protect electronic components and prevent them from being easily damaged during use, it inevitably restricts the ductility and flexibility of the product. And the flexibility and application range of product development

Method used

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  • Printing device and manufacturing method of high-precision large-stretching OLED array based on island bridge type structure
  • Printing device and manufacturing method of high-precision large-stretching OLED array based on island bridge type structure
  • Printing device and manufacturing method of high-precision large-stretching OLED array based on island bridge type structure

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0031] (1) First, through the figure 1 device, inject polyvinyl alcohol support material into the liquid supply device 4, and print out such as Figure 4 The support material for the base layer 23 of the OLED is shown.

[0032] (2) Then the nozzle selects the 200 μm specification, adjusts the height of the nozzle to keep the distance between the height of the nozzle and the substrate 5 at 500 μm, and injects the graphene-modified conductive silver colloid solution in the liquid supply device 4, wherein the graphene content is 0.07%. , turn on the flow pump to supply liquid at a given rate. At the same time, the high-voltage power supply 1 is turned on to output pulse voltage, the modulation voltage is 2.2kv, the frequency is 50HZ, and the speed of the displacement platform 8 is 5mm / s. The temperature of the heating plate 7 is maintained at 150°C. The five-axis displacement platform is controlled by the computer control system to translate to the predetermined position along...

example 2

[0038] (1) First, through the figure 1 device, inject polyvinyl alcohol support material into the liquid supply device 4, and print out such as Figure 4 The support material for the base layer 23 of the OLED is shown.

[0039] (2) Then the nozzle selects the 225 μm specification, adjusts the nozzle height to keep the distance between the nozzle height and the substrate 5 at 550 μm, and injects the graphene-modified conductive silver colloid solution in the liquid supply device 4, wherein the graphene content is 0.07%. , turn on the flow pump to supply liquid at a given rate. At the same time, the high-voltage power supply 1 is turned on to output pulse voltage, the modulation voltage is 2.6kv, the frequency is 55HZ, and the speed of the displacement platform 8 is 10mm / s. The temperature of the heating plate 7 is maintained at 150°C. The five-axis displacement platform is controlled by the computer control system to translate to the predetermined position along the predeter...

example 3

[0045] (1) First, through the figure 1 device, inject polyvinyl alcohol support material into the liquid supply device 4, and print out such as Figure 4 The support material for the base layer 23 of the OLED is shown.

[0046] (2) Then the nozzle selects the 250 μm specification, adjusts the height of the nozzle to keep the distance between the height of the nozzle and the substrate 5 at 600 μm, and injects the graphene modified conductive silver colloid solution in the liquid supply device 4, wherein the graphene content is 0.07%. , turn on the flow pump to supply liquid at a given rate. At the same time, the high-voltage power supply 1 is turned on to output pulse voltage, the modulation voltage is 2.6kv, the frequency is 60HZ, and the speed of the displacement platform 8 is 15mm / s. The temperature of the heating plate 7 is maintained at 150°C. The five-axis displacement platform is controlled by the computer control system to translate to the predetermined position alon...

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Abstract

The invention discloses a printing device and a manufacturing method of a high-precision large-stretching OLED array based on an island bridge type structure. Through electric drive printing, the positive electrode of a high-voltage power supply is connected with a nozzle through a wire, and the negative electrode of the high-voltage power supply is connected with a conductive support through a wire; the nozzle has high-voltage positive charges, and liquid drops at the nozzle are polarized by high voltage and generate polarized positive charges; meanwhile, induced negative charges are generated on the surface of a substrate through electrostatic induction between a spray head and the substrate, and a vertically downward electric field is formed; and under the action of a space electric field, the charged liquid drops are stretched and deformed under the action of electric field force until conical jet flow is formed. By applying the pulse high-voltage power supply, controlling the action time of a single pulse voltage to control the spraying frequency of a single liquid drop, adjusting process parameters and realizing accurate printing, in combination with control of a printing platform, accurate deposition of the liquid drops on the substrate and point-by-point forming are realized to realize 3D printing, and the high-precision and large-stretching island bridge type structureis obtained; and finally, the high-precision large-stretching OLED array based on the island bridge type structure is obtained through thermal evaporation.

Description

technical field [0001] The invention belongs to the technical field of electrohydrodynamic jet printing, and in particular relates to a printing device and a manufacturing method of a high-precision and large-stretched OLED array based on an island-bridge structure. Background technique [0002] For a long time, the main driving force of microelectronics technology is to reduce the feature size of functional components and improve integration, so as to achieve the purpose of increasing operating speed and computing power and reducing operating voltage. Traditional microelectronics use relatively hard silicon substrates or flat glass. The shape of the product is fixed and hard. Although it is beneficial to protect the electronic components and prevent them from being easily damaged during use, it inevitably restricts the ductility and flexibility of the product. And the flexibility and application range of product development. [0003] In response to this problem, in order t...

Claims

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Application Information

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IPC IPC(8): B41J3/407B41J2/06B41J29/393H01L51/56
CPCB41J3/407B41J2/06B41J29/393H10K71/611
Inventor 江诚鸣方程程谭东宸孙宏锦张哲
Owner DALIAN UNIV OF TECH
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