WO2019200566A1

WO2019200566A1 - Flexible electronic device and manufacturing method thereof

Info

Publication number: WO2019200566A1
Application number: PCT/CN2018/083570
Authority: WO
Inventors: 刘严谨
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2018-04-18
Filing date: 2018-04-18
Publication date: 2019-10-24
Also published as: CN112020906A

Abstract

Provided is a flexible electronic device (10), comprising an ink functional layer (13), wherein the ink of the ink functional layer (13) is doped with a carbon material and/or a metallic material. The flexible electronic device comprises an ink functional layer doped with a carbon material and/or a metallic material, so that the ink functional layer has functions of heat dissipation and/or electromagnetic shielding. After the ink functional layer is bent for a plurality of times, it is not likely occur delamination, detachment, breakage, and the like, and the performance of the flexible electronic device is ensured.

Description

Flexible electronic device and method of manufacturing same

Technical field

The present invention relates to the field of flexible electronic technologies, and in particular, to a flexible electronic device and a method of fabricating the same.

Background technique

Flexible electronic devices, such as flexible display devices, are made of a flexible material that is capable of bending and bending, and has broad application prospects. Generally speaking, a functional layer needs to be set on a flexible electronic device to meet the needs of use. However, the bending performance of the existing functional layer is not good, and delamination, shedding, and the like are apt to occur, affecting the performance of the flexible electronic device.

Summary of the invention

In order to solve the above problems, embodiments of the present invention disclose a flexible electronic device and a method of fabricating the same.

A flexible electronic device comprising an ink functional layer, the ink of the ink functional layer being doped with a carbon material and/or a metallic material.

Further, the flexible electronic device further includes a flexible body and an ink functional layer disposed on one side of the flexible body.

Further, the ink functional layer includes a first ink layer and a second ink layer which are laminated, and the first ink layer is interposed between the flexible body and the second ink layer.

Further, the first ink layer is doped with a carbon material, and the second ink layer is doped with a metal material.

Further, the flexible body comprises a laminated flexible display panel and a support layer, and the ink functional layer is disposed on a side of the support layer away from the flexible display panel.

Further, the ink functional layer is patterned on the flexible body.

Further, the ink functional layer includes a film and an ink layer, the ink layer is formed on one side of the film, and the side of the ink layer away from the film is attached to the flexible body together,.

Further, the ink layer includes a first ink layer and a second ink layer which are laminated, and the second ink layer is interposed between the film and the first ink layer.

A method of manufacturing a flexible electronic device, comprising the steps of:

Providing a flexible body;

An ink functional layer is formed on one side of the flexible body, and the ink of the ink functional layer is doped with a carbon material and/or a metal material.

Further, the “forming an ink functional layer on one side of the flexible body” includes: providing a film; printing an ink on one side of the film to form an ink layer, the ink doping carbon material And/or a metal material; the ink layer is attached to a side of the substrate and attached to a side of the flexible body to form the ink functional layer.

Further, the “forming an ink functional layer on one side of the flexible body” includes: printing an ink on one side of the flexible body to form an ink layer, the ink doped carbon material and/or Or a metallic material; the ink layer is patterned to form the ink functional layer.

The flexible electronic device and the manufacturing method thereof provided by the invention include an ink functional layer doped with a carbon material and/or a metal material, so that the ink functional layer has a heat dissipation and/or electromagnetic shielding function, and the ink functional layer is repeatedly After bending, delamination, detachment, breakage, and the like are less likely to occur, and the performance of the flexible electronic device is ensured.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

FIG. 1 is a schematic diagram of a flexible electronic device according to a first embodiment of the present invention.

2 is a schematic diagram of a flexible electronic device according to a second embodiment of the present invention.

3 is a schematic diagram of a flexible electronic device according to a third embodiment of the present invention.

4 is a schematic diagram of a flexible electronic device according to a fourth embodiment of the present invention.

FIG. 5 is a flowchart of a method of manufacturing a flexible electronic device according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Referring to FIG. 1 , a first embodiment of the present invention provides a flexible electronic device 10 including an ink functional layer 13 , the ink of the ink functional layer 13 being doped with a carbon material and/or a metal material. In the embodiment, the flexible electronic device 10 is a flexible display device. In other embodiments, the flexible electronic device 10 may be a flexible touch device or a flexible display touch device or the like.

Further, the flexible electronic device 10 further includes a flexible body 11 disposed on one side of the flexible body 11. The ink of the ink functional layer 13 is doped with a carbon material and/or a metal material.

The ink of the ink functional layer 13 is a functional ink. In the present embodiment, a functional ink is formed by doping the ink with a carbon material, in other words, the ink of the ink functional layer 13 is doped with a carbon material. The carbon material has excellent heat dissipation properties. The ink functional layer 13 is used as a heat dissipation functional layer. The carbon material includes at least one of two-dimensional graphene, carbon nanotubes, and carbon nanofibers.

The flexible body 11 includes a flexible display panel 113 and a supporting layer 115 which are laminated, and the supporting layer film is a polymer material such as PET or PTFE, and functions as a supporting panel. The ink functional layer 13 is disposed on a side of the support layer 115 away from the flexible display panel 113. In the embodiment, the flexible display panel 113 is an Organic Light-Emitting Diode (OLED) display panel. The ink functional layer 13 may be printed on one side of the support layer 115 away from the flexible display panel 113 by printing an ink doped with a minute carbon material. The tiny carbon material is typically nanoscale. The ink functional layer 13 can adhere well to the support layer 115, and does not leave the support layer 115 even after being bent a plurality of times. In other words, the ink functional layer 13 does not occur. Layering, breaking, detachment, etc.

In an embodiment, the ink functional layer 13 is patterned on the support layer 115 of the flexible body 11. The ink functional layer 13 can be a different combination of patterns. Furthermore, the ink functional layer 13 can be designed according to different functional layouts.

In one embodiment, the ink of the ink functional layer 13 is doped with a metal material such that the ink functional layer 13 has an electromagnetic shielding function. In other words, the ink functional layer 13 is an electromagnetic shielding layer. The metal material includes at least one of copper, aluminum, silver, and tin. It can be understood that the ink functional layer 13 can be made of other anti-electromagnetic interference materials.

By forming the ink functional layer 13 on the support layer 115, the thickness of the ink functional layer 13 is thin and can be well adhered to the support layer 115, since the ink is doped with a carbon material or a metal material. The ink functional layer 13 has a heat dissipation or electromagnetic shielding function.

Referring to FIG. 2 , a second embodiment of the present invention provides a flexible electronic device 30 including a flexible body 31 and an ink functional layer 33 disposed on one side of the flexible body 31 . The flexible electronic device 30 is substantially the same as the flexible electronic device 10 provided by the first embodiment, except that the ink functional layer 33 includes a first ink layer 331 and a second ink layer 333 which are stacked, the first An ink layer 331 is interposed between the flexible body 31 and the second ink layer 33.

The ink of the first ink layer 331 is doped with a carbon material for use as a heat dissipation layer. The ink of the second ink layer 333 is doped with a metal material for use as an electromagnetic shielding layer. It can be understood that the ink doping metal material of the first ink layer 331 , that is, the first ink layer 331 is used as an electromagnetic shielding layer; the ink of the second ink layer 333 is doped with carbon material, the second ink Layer 333 is used as a heat sink layer. In an embodiment, the first ink layer 331 and the second ink layer 333 are both doped with a carbon material. In an embodiment, the first ink layer 331 and the second ink layer 333 are both doped with a metal material.

Compared with the flexible electronic device 10 of the first embodiment, the flexible electronic device 30 provided by the second embodiment has both heat dissipation and electromagnetic shielding functions.

Referring to FIG. 3 , a third embodiment of the present invention provides a flexible electronic device 50 including a flexible body 51 and an ink functional layer 53 disposed on one side of the flexible body 51 . The flexible electronic device 50 is substantially the same as the flexible electronic device 10 provided by the first embodiment, except that the ink functional layer 53 includes a laminated film 531 and an ink layer 533.

The film 531 includes a first side surface 5311 and a second side surface 5313 which are oppositely disposed. The ink layer 533 is formed on the first side surface 5311. In this embodiment, a functional ink is printed on the first side surface 5311 of the film 531 to form the ink layer 533, and the ink layer 533 is further away from the side of the film 531 and the flexible body 51. One side is attached together. The film 531 can prevent the ink layer 533 from being worn and affect the function of the ink function layer 53.

Further, the flexible body 51 includes a flexible display panel 513 and a support layer 515 which are disposed on the side of the support layer 515 away from the flexible display panel 513.

In the present embodiment, the film member 531 is a heat-insulable film material to thermally block the heat generated during the operation of the flexible electronic device 50 and the flexible display panel 513.

The ink of the ink layer 533 is doped with a carbon material to achieve heat dissipation. Alternatively, the ink of the ink layer 533 is doped with a metal material to achieve an electromagnetic shielding function.

Printing the functional ink onto the film 531 and then attaching the ink functional layer 53 to the support layer 515 can be reworked and reduce the effect on the flexible display panel 513 during the printing process.

Referring to FIG. 4 , a fourth embodiment of the present invention provides a flexible electronic device 70 including a flexible body 71 and an ink functional layer 73 disposed on one side of the flexible body 71 . The flexible electronic device 70 is substantially the same as the flexible electronic device 50 provided by the fourth embodiment, except that the ink layer 733 includes a first ink layer 7331 and a second ink layer 7333 which are stacked. The second ink layer 7333 is disposed adjacent to the film 731. The ink of the first ink layer 7331 is doped with a carbon material, and the ink of the second ink layer 7333 is doped with a metal material.

It can be understood that the ink of the first ink layer 7331 is doped with a metal material, that is, the first ink layer 7331 is used as an electromagnetic shielding layer; the ink of the second ink layer 7333 is doped with a carbon material; the second ink Layer 7333 is used as a heat sink layer. It can be understood that, in other embodiments, the first ink layer 7331 and the second ink layer 7333 are both doped with a carbon material. It is also understood that in other embodiments, the first ink layer 7331 and the second ink layer 7333 may also be doped with a metal material.

Referring to FIG. 5, an embodiment of the present invention further provides a method for manufacturing the above flexible electronic device, including the following steps:

Step 501 provides a flexible body.

Step 502, forming an ink functional layer on one side of the flexible body, the ink of the ink functional layer being doped with a carbon material and/or a metal material.

In step 502, a patterned ink functional layer is formed on one side of the flexible body.

In step 502, the following steps are specifically included:

Providing a membrane material;

Printing ink on one side of the film to form an ink layer, the ink being doped with a carbon material and/or a metal material;

The ink layer is attached to one side of the film and attached to one side of the flexible body to form the ink functional layer.

In step 502, the "forming an ink functional layer on one side of the flexible body" includes the following steps:

Printing ink on one side of the flexible body to form an ink layer, the ink being doped with a carbon material and/or a metal material;

The ink layer is patterned to form the ink functional layer.

The flexible electronic device and the manufacturing method thereof provided by the present invention, the ink of the ink functional layer on the flexible body is doped with a carbon material and/or a metal material, so that the ink functional layer has heat dissipation and/or electromagnetic shielding function, and The ink functional layer has better bending performance and can adhere well to the flexible body, and is less likely to cause delamination, detachment, breakage, etc., and ensures the performance of the flexible electronic device.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is the scope of protection of the present invention.

Claims

A flexible electronic device characterized by comprising an ink functional layer, the ink of the ink functional layer being doped with a carbon material and/or a metal material.
The flexible electronic device of claim 1 wherein said flexible electronic device further comprises a flexible body, said ink functional layer being disposed on a side of said flexible body.
The flexible electronic device of claim 2, wherein the ink functional layer comprises a first ink layer and a second ink layer stacked in a stack, the first ink layer being sandwiched between the flexible body and the Between the second ink layers.
The flexible electronic device of claim 3 wherein said first ink layer is doped with a carbon material and said second ink layer is doped with a metallic material.
The flexible electronic device according to claim 2, wherein the flexible body comprises a laminated flexible display panel and a support layer, and the ink functional layer is disposed on a side of the support layer away from the flexible display panel on.
The flexible electronic device of claim 2 wherein said ink functional layer is patterned on said flexible body.
The flexible electronic device according to claim 2, wherein said ink functional layer comprises a film and an ink layer, said ink layer being formed on one side of said film, said ink layer being away from said film One side of the material is attached to the flexible body.
The flexible electronic device according to claim 7, wherein the ink layer comprises a first ink layer and a second ink layer which are laminated, and the second ink layer is interposed between the film and the first Between an ink layer.
A method of manufacturing a flexible electronic device, comprising the steps of:

Providing a flexible body;

An ink functional layer is formed on one side of the flexible body, and the ink of the ink functional layer is doped with a carbon material and/or a metal material.
The method of manufacturing according to claim 9, wherein said "forming an ink functional layer on one side of said flexible body" comprises:

Providing a membrane material;

Printing ink on one side of the film to form an ink layer, the ink being doped with a carbon material and/or a metal material;

The ink layer is attached to one side of the film and attached to one side of the flexible body to form the ink functional layer.
The method of manufacturing according to claim 9, wherein said "forming an ink functional layer on one side of said flexible body" comprises:

Printing ink on one side of the flexible body to form an ink layer, the ink being doped with a carbon material and/or a metal material;

The ink layer is patterned to form the ink functional layer.