Flexible conductive thin film, preparation method thereof and display panel

A flexible conductive and thin film technology, applied in the optical field, can solve the problems of limited flexibility, poor stability of the flexible conductive film, use reliability and life impact of the flexible conductive film, etc., so as to improve flexibility and use stability and improve service life. Effect

Inactive Publication Date: 2019-07-19
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a flexible conductive film, its preparation method, and a display panel to solve the technical problem that the existing flexible conductive film has poor stability and limited flexibility, thus affecting the reliability and service life of the flexible conductive film

Method used

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  • Flexible conductive thin film, preparation method thereof and display panel
  • Flexible conductive thin film, preparation method thereof and display panel
  • Flexible conductive thin film, preparation method thereof and display panel

Examples

Experimental program
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Effect test

preparation example Construction

[0034] Such as figure 1 As shown, the preparation method of the flexible conductive film 100 includes: step S10, preparing the base film 10, applying pre-stretching stress to the base film 10; step S20, pre-stretching the base film 10 Forming a conductive layer 20; step S30, releasing the pre-stretching stress applied to the base film 10, wherein the base film 10 and the conductive layer 20 elastically shrink, and the conductive layer 20 and the base film 10, the surface of one side close to the conductive layer shrinks into a wave shape.

[0035] Such as Figure 6 As shown, the flexible conductive film 100 further includes a protective layer 30 disposed on the conductive layer 20 . The preparation method further includes: after the step S30 , forming the protective layer 30 on the conductive layer 20 .

[0036] The material of the protective layer is the same as that of the base film, and the material of the base film 10 is modified polydimethylsiloxane, such as bisamino-p...

Embodiment 1

[0043] Such as figure 2 As shown, the flexible conductive film 100 in this embodiment includes a base film 10 and a conductive layer disposed on the base film 10, wherein the conductive layer and the surface of the base film near the conductive layer are both It is wavy.

[0044] Such as figure 1 As shown, the preparation method of the flexible conductive film 100 includes:

[0045] Step S10, preparing the base film 10, and applying pre-tensioning stress to the base film 10;

[0046] Such as image 3 and Figure 4 As shown, at first, prepare a bisamino-dimethylsiloxane film as the base film 10, and adjust the transparency of the base film 10 by pre-stretching stress, so that the transparency of the base film 10 reaches a set value, the The transparency of the base film 10 is controlled within a range of 55% to 88%. When the stretch rate of the base film 10 is 50%, the transparency of the base film 10 is 75%.

[0047] Step S20, forming a conductive layer 20 on the pre-st...

Embodiment 2

[0056] Such as Figure 6 As shown, the flexible conductive film further includes a protective layer 30 disposed on the conductive layer 20 , and the protective layer 30 covers the conductive layer 20 .

[0057] In this embodiment, on the basis of the preparation method in Embodiment 1, a flexible protective layer is added, so that the upper and lower surfaces of the conductive layer 20 form a flexible and transparent material with a protective effect.

[0058] After step S30 of Embodiment 1, prepare another layer of bisamino-polydimethylsiloxane film identical to the base film 10, and press the film on the conductive layer 20 by molding to form a protective layer 30 .

[0059] Likewise, when a crack occurs in the protective layer 30 , it can react with tritylaldehyde at room temperature to complete self-healing and crack repair.

[0060] The flexible conductive film in this embodiment has two layers of flexible transparent material protection, which can improve the stability...

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Abstract

A preparation method of a flexible conductive thin film comprises the steps of preparing a substrate thin film, and applying pre-stretching stress on the substrate thin film; forming a conductive layer on the pre-stretched substrate thin film; and releasing the pre-stretched stress applied onto the substrate thin film, wherein the substrate thin film and the conductive layer are elastically contracted, and the conductive layer and a surface of one side, near to the conductive layer, of the substrate thin film are contracted to form a wavelike shape. The preparation method has the beneficial effects that the flexibility and the application stability of the conductive layer can be improved, and the service lifetime of the flexible conductive thin film is further prolonged.

Description

technical field [0001] The invention relates to the field of optics, in particular to a flexible conductive film, a preparation method thereof, and a display panel. Background technique [0002] In recent years, flexible transparent conductive films have been widely used in optoelectronic devices such as liquid crystal displays, touch screens, organic light-emitting diodes, and solar cells due to their combined conductivity, light transmission, and bending resistance. Common transparent conductive films are mainly indium tin oxide (Indium tin oxide, ITO) films, metal mesh films, nano-silver wire films, and the like. [0003] Among them, the ITO film technology is mature, but the cost of raw materials is high, the conductivity is limited, and it is not resistant to bending; the raw material of the metal grid film is cheap and resistant to electromagnetic interference, but the metal line is wide and there is Murray interference; silver nanowires The line width is small, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B5/14G06F3/041
CPCH01B13/0026H01B13/0009H01B5/14G06F3/0412G06F2203/04102G06F2203/04103H01B1/02C09D165/00C08G61/126C08G2261/1424C08G2261/3223C08G2261/794C08G2261/91C08G2261/95H01B1/127H01B1/128B32B2250/24B32B2255/26B32B2457/20B32B27/40B32B2255/28B32B2255/10B32B2307/412B32B2307/546B32B2255/20B32B3/085B32B2307/202B32B2255/205B32B3/30B32B27/283B32B2274/00B32B27/08Y02E10/549H10K71/60H10K77/111B32B37/16B32B2383/00C09D5/24
Inventor 李颖刘卫平
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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