Graphical flexible transparent conductive film and preparation method thereof

A transparent conductive film and patterning technology, applied in the direction of transparent dielectric, conductive layer on insulating carrier, printed circuit manufacturing, etc. The effect of improving conductivity

Active Publication Date: 2011-10-19
ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the transparent conductive film produced by printing technology has a conductive network exposed on the surface of the transparent substrate with a raised structure, and the

Method used

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  • Graphical flexible transparent conductive film and preparation method thereof
  • Graphical flexible transparent conductive film and preparation method thereof
  • Graphical flexible transparent conductive film and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1: A transparent conductive film is made by combining grooves with equal hexagonal grooves as the basic unit

[0029] In this embodiment, the patterned flexible transparent conductive film, such as figure 2 with image 3 As shown, it includes a transparent and flexible substrate 11 , a transparent embossing glue 12 integrally bonded on the substrate 11 , and a conductive film 13 uniformly filled in the groove bottom of the transparent embossing glue 12 .

[0030] Wherein the transparent flexible substrate 11 is PET with a thickness of 100 μm. The transparent embossing glue 12 is a solvent-free UV-curable acrylic resin with a thickness of 5 μm. The groove network on the surface of the transparent embossing glue 12 is a hexagonal array, the radius of the circumscribed circle of the hexagon is r=5 μm, the value of the groove width d is 500nm~10 μm (preferably 1 μm in this embodiment), and the depth h=2 μm. The wall angle is about 82°. The conductive film 13...

Embodiment 2

[0036] Embodiment 2: A transparent conductive film is made by combining grooves with square grooves as the basic unit

[0037] In this embodiment, the patterned flexible transparent conductive film, such as Figure 5 As shown, it includes a transparent flexible substrate 11 , a transparent embossing glue 12 disposed above the substrate 11 , and a conductive film 13 uniformly filled in the groove bottom of the transparent embossing glue 12 .

[0038] Wherein the transparent flexible substrate 11 is PC with a thickness of 50 μm. The transparent embossing glue 12 is PMMA with a thickness of 6 μm. The groove network on the surface of the transparent embossing adhesive 12 is a square array, the side length of the square is 400 μm, the groove width d=10 μm, the depth h=11 μm, and the side wall angle is about 88°. The conductive film 13 after sintering is simple copper, and the copper is evenly filled in the bottom of the groove of the transparent embossing adhesive, and communicat...

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Abstract

The invention discloses a graphical flexibility transparent conductive film and a preparation method of the graphical flexible transparent conductive film, comprising a flexible transparent substrate, transparent embossing glue and a conductive material embedded in the transparent embossing glue from bottom to top; a graphical and communicated groove network is formed on the surface of the transparent embossing glue, the sum of the areas outside the groove network accounts for more than 80 percent of total superficial area of the film, and the depth of the groove is less than the thickness ofthe transparent embossing glue; the conductive material is respectively conductive ink and a conductive film before and after sintering, the conductive ink is uniformly filled at the bottom of the groove network and is communicated, and the thickness of the conductive film is less than the depth of the groove, and the film is provided with a conductive network covered by the conductive film and alight-transmitting area outside the groove network. Besides, in the invention, a design scheme of the conductive network is provided, and the preparation is realized based on the technologies such asembossing, conductive ink scraping and the like; the graphical flexibility transparent conductive film and the preparation method of the graphical flexible transparent conductive film have the beneficial effects that the scratching-prevention scraping-resisting characteristics of the film are greatly improved and the electric conductivity of the transparent conductive film is improved to the maximum extent.

Description

technical field [0001] The invention relates to a method for making a transparent conductive film, and relates to a transparent conductive film based on embossing and scraping conductive ink technology and a processing method thereof. Background technique [0002] The transparent conductive film is a film with good conductivity and high light transmittance in the visible light band. At present, transparent conductive films have been widely used in fields such as flat panel displays, photovoltaic devices, touch panels, and electromagnetic shielding, and have an extremely broad market space. With the rapid development of the above-mentioned devices in the direction of thinning and thinning, flexible transparent conductive films have become the focus of research because of their advantages such as lightness, thinness and good flexibility. [0003] Flexible transparent conductive films can generally be divided into two categories: non-patterned and patterned. In most practical...

Claims

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Application Information

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IPC IPC(8): H01B5/14H01B13/00
CPCG06F3/045G06F2203/04103H05K3/1258H05K9/0094H05K2201/0108H05K2201/09681H05K2203/1344H01B5/14H01B13/00
Inventor 崔铮高育龙陈林森周小红李丰张东煜方慧
Owner ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD
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