WO2016019665A1 - Touch-enabled organic light-emitting display device and manufacturing method therefor, and display apparatus - Google Patents

Abstract

Provided are a touch-enabled organic light-emitting display device and a manufacturing method therefor, and a display apparatus. The display device comprises an encapsulation substrate (100) and an array substrate (200) arranged opposite thereto. A thin film transistor (21) and an organic light-emitting device are formed on the array substrate (200). A first electrode (27) and a second electrode (28) that are not in contact with each other are formed on the encapsulation substrate (100) and/or the array substrate (200). The first electrode (27) and the second electrode (28) are a driving electrode and an induction electrode respectively. The first electrode (27) and/or the second electrode (28) is made of materials comprising a topological insulator. The first electrode (27) and/or the second electrode (28) has a two-dimensional nano structure, and is adhered to the encapsulation substrate (100) and/or the array substrate (200) via an adhesive layer (40). The display device solves the problem that the resistance values of the first electrode and the second electrode in an existing liquid crystal display touch screen are too large.

Description

Organic light emitting display device with touch function, manufacturing method thereof, and display device Technical field

Embodiments of the present invention relate to an organic light emitting display device having a touch function, a method of fabricating the same, and a display device.

Background technique

Touch screen, also known as "touch screen", is the most simple, convenient and natural way of human-computer interaction. Early touch screen displays included a touch panel and a display panel, and the touch panel and display panel were separately prepared. A typical touch-enabled display screen generally integrates a touch panel and a liquid crystal display panel.

An OLED (Organic Light-Emitting Diode) display having a touch function includes an array substrate and a package substrate. The array substrate is generally formed with a thin film transistor, an organic light emitting device, and a touch electrode capable of implementing a touch function. The organic light-emitting device comprises an anode, a cathode and an organic functional layer to constitute an organic light-emitting device. The main working principle is that the organic functional layer is driven by an electric field formed by the anode and the cathode, and is caused by carrier injection and recombination to cause light emission. display.

Summary of the invention

Embodiments of the present invention provide an organic light emitting display device having a touch function, a method of fabricating the same, and a display device.

At least one embodiment of the present invention provides a touch-enabled organic light-emitting display device including an array substrate and a package substrate, and a thin film transistor and an organic light-emitting device are disposed on the array substrate, and the array substrate and/or Or the package substrate is provided with a first electrode and a second electrode that are not in contact with each other, the first electrode and the second electrode are respectively a driving electrode and a sensing electrode; forming the first electrode and/or the The material of the second electrode may comprise a topological insulator, the first electrode and / or the second electrode having a two-dimensional nanostructure.

For example, the first electrode and/or the second electrode may be adhered to the array substrate and/or the package substrate through an adhesive layer.

Embodiments of the present invention also provide a maker of an organic light emitting display device having a touch function. The method includes: forming a first electrode pattern and/or a second electrode pattern of the two-dimensional nanostructure by using a topological insulator; forming the array substrate and the package substrate, including: the first electrode pattern and/or the The two electrode patterns are adhered to the first substrate of the array substrate and/or the second substrate of the package substrate by an adhesive layer to form a first contact with each other on the array substrate and/or the package substrate An electrode and a second electrode; wherein the first electrode and the second electrode are respectively a driving electrode and a sensing electrode; and the array substrate and the package substrate are paired with a box.

The embodiment of the invention further provides a display device, which comprises the touch-enabled organic light-emitting display according to any one of the embodiments of the invention.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is some embodiments of the invention.

1 is a schematic view of a touch electrode;

2 is a schematic cross-sectional view of the touch electrode A-A' shown in FIG. 1;

3 is a schematic diagram of a touch principle of the capacitive touch panel of FIG. 1;

FIG. 4 is a schematic diagram of an array substrate according to an embodiment of the invention;

FIG. 5 is a schematic diagram of a package substrate according to another embodiment of the present invention; FIG.

FIG. 6 is a schematic diagram of an organic light emitting display device with a touch function according to another embodiment of the present invention; FIG.

FIG. 7 is a schematic diagram of an organic light emitting display device after packaging an array substrate according to another embodiment of the present invention.

Reference mark:

10-second substrate; 100-package substrate; 20-first substrate; 21-thin film transistor; 23-anode; 24-luminescence functional layer; 25-cathode; 26-passivation layer; 27-first electrode; 28-second electrode; 29-insulating layer; 30-barrier layer; 40-adhesive layer; 50-finger; 200-array substrate.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and Not all 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.

Unless otherwise defined, technical terms or scientific terms used in the present disclosure shall be understood as the ordinary meaning of the ordinary skill in the art to which the invention pertains. The words "first," "second," and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are used to distinguish different components.

As shown in FIG. 1, the touch electrode includes a first electrode 27 and a second electrode 28, wherein the first electrode 27 is formed in a plurality of rows in the first direction 101, and the second electrode 28 is formed in a plurality of rows in the second direction 102. As shown in FIG. 2, the second insulating layer 29 is located between the first electrode 27 and the second electrode 28 such that the first electrode 27 and the second electrode 28 are not in contact with each other. As shown in FIG. 3 , taking the capacitive touch panel as an example, when the finger 50 touches the screen, the capacitances of the first electrode 27 and the second electrode 28 at the touch position may change, so that the touch position can be detected and the touch is realized. Features.

The inventors have noted in the research that the above-mentioned touch electrodes are generally formed by using a transparent conductive oxide (TOC), for example, forming a first electrode and a second electrode with ITO (indium tin oxide). However, the ITO film has a large resistance value, so the touch response rate is slow and it is easy to generate heat, and the power consumption is large. The problem that the resistance values of the first electrode and the second electrode in the touch electrode of the touch display panel are large, the touch response rate is slow and easy to generate heat, and the power consumption is large, which has become one of the research directions in the field.

In the following description of the present disclosure, the first electrode 27 is used as the driving electrode, and the second electrode 28 is taken as the sensing electrode. However, in practical applications, the first electrode 27 can also function as a sensing electrode, and the corresponding second electrode 28 serves as a sensing electrode. Drive the electrode. That is, the first electrode and the second electrode can be interchanged as needed.

Topological insulators are a new form of matter that has recently been recognized. The physical energy band structure of the topological insulator has a finite size energy gap at the Fermi level, but at its boundary or surface, it is energy-free, Dirac type, spin non-degenerate. The conductive edge state, which is the most unique property that distinguishes it from ordinary insulators. Such conductive edge states are stable, and the transmission of information can be through the spin of electrons, rather than passing charges like conventional materials. Therefore, the topological insulator has better electrical conductivity and does not involve dissipation or heat generation.

The embodiment of the invention provides an organic light emitting display device with a touch function, comprising an array substrate and a package substrate, wherein the array substrate is provided with a thin film transistor and an organic light emitting device, and the array substrate and/or the package substrate are disposed on the substrate. a first electrode and a second electrode that are not in contact with each other, An electrode and a second electrode are respectively a driving electrode and a sensing electrode;

The material forming the first electrode and/or the second electrode comprises a topological insulator, the first electrode and/or the second electrode having a two-dimensional nanostructure, and the first electrode and/or the second of the two-dimensional nanostructure formed by the topological insulator The electrodes may be adhered to the array substrate and/or the package substrate by an adhesive layer.

The material forming the first electrode and/or the second electrode includes a topological insulator, that is, the material forming the first electrode and/or the second electrode may include only the topological insulator, and may also be a mixed material formed by a topological insulator and a polymer, etc. The embodiments of the invention are described in detail by taking the material forming the first electrode and/or the second electrode as a topological insulator.

The material forming the first electrode and/or the second electrode comprises a topological insulator, the first electrode and/or the second electrode having a two-dimensional nanostructure, ie the first electrode and/or the second electrode being a topological insulator of a two-dimensional nanostructure. It may be a topological insulator in which only the first electrode is a two-dimensional nanostructure; or, only the second electrode is a two-dimensional nanostructure topological insulator; it may also be a topological insulator in which the first electrode and the second electrode are both two-dimensional nanostructures. In the embodiment of the present invention, a topological insulator in which the first electrode and the second electrode are both two-dimensional nanostructures is taken as an example for detailed description.

The two-dimensional nanostructure topological insulator, that is, the nano-sized thickness film formed by the topological insulator, may be a two-dimensional nano film formed by a topological insulator, a two-dimensional nano-sheet, a two-dimensional nano-belt, or the like. The topological insulator of two-dimensional nanostructure has the ultra-high specific surface area and the controllability of the energy band structure, which can significantly reduce the proportion of bulk carriers and highlight the topological surface state, and thus the conductivity is better.

For example, the two-dimensional nanostructures can also be two-dimensional strip-shaped nanostructures or two-dimensional diamond-shaped nanostructures. Of course, the two-dimensional nanostructure may also be a two-dimensional network nanostructure, and the two-dimensional network nanostructure has a plurality of grids arranged in an array. For example, the mesh may be in the shape of a diamond, a regular quadrangle, or a regular hexagon.

It should be noted that the topological insulator of the two-dimensional nanostructure is more suitable for the display device because of its similarity to the graphene structure, high flexibility, and high transmittance which is invisible to the naked eye.

For example, the array substrate and/or the package substrate are formed with the first electrode and the second electrode that are not in contact with each other, and the first electrode and the second electrode that are not in contact with each other may be formed on the array substrate; or, the package substrate may be The first electrode and the second electrode that are not in contact with each other are formed; and the first electrode and the second electrode that are not in contact with each other are formed on the array substrate and the package substrate, respectively. For example, the first electrode may be formed on the array substrate, and the second electrode may be formed on the package substrate. Alternatively, the second electrode may be formed on the array substrate, and the first electrode may be formed on the package substrate.

It should be noted that other films or layers may be formed on the array substrate and the package substrate. Structure and so on. For example, a thin film transistor, an organic light emitting device, or the like is generally formed on the array substrate, and the package substrate is generally formed with a color film layer, a black matrix, or the like. For the sake of brevity of the device, the present disclosure will be described by way of example only with respect to the film or layer structure associated with the inventive aspects of the present invention.

It should be noted that the first electrode 27 and the second electrode 28 may be a Touch Driving electrode and a Touch Sensing electrode, respectively. When the driving signal (Tx) is added to the driving electrode, the sensing electrode receives the sensing signal (Rx), and the capacitive touch screen determines whether there is a finger touch by calculating the amount of change of the capacitance between the sensing electrode and the driving electrode before and after the finger touch to realize the touch. Features.

The light-emitting display device with touch function provided by the embodiment of the invention may be a two-dimensional nanostructure topological insulator, which is greatly reduced with respect to an electrode formed of ITO or metal. The electrode resistance can further improve the touch response rate, and the electrode formed by the two-dimensional nanostructure topological insulator does not generate heat for a long time, which can not only reduce power consumption, but also avoid the problem that high temperature affects the performance of other devices. .

For example, the topological insulator may include HgTe, Bi _x Sb _1-x , Sb ₂ Te ₃ , Bi ₂ Te ₃ , Bi ₂ Se ₃ , T _l BiTe ₂ , T _l BiSe ₂ , Ge ₁ Bi ₄ Te ₇ , Ge ₂ Bi _{At least one of 2} Te ₅ , Ge ₁ Bi ₂ Te ₄ , AmN, PuTe, a single layer of tin, and a single layer of tin variant material.

Ge ₁ Bi ₄ Te ₇ , Ge ₂ Bi ₂ Te ₅ and Ge ₁ Bi ₂ Te ₄ are chalcogenides. AmN and PuTe belong to topological insulators with strong interactions. Of course, the topological insulator can also be other materials such as a ternary Hessler compound.

For example, the topological insulator may include HgTe, Bi _x Sb _1-x , Sb ₂ Te ₃ , Bi ₂ Te ₃ , Bi ₂ Se ₃ , T _l BiTe ₂ , T _l BiSe ₂ , Ge ₁ Bi ₄ Te ₇ , Ge ₂ Bi _{At least one of 2} Te ₅ , Ge ₁ Bi ₂ Te ₄ , AmN, PuTe, single-layer tin, and a single-layer tin variant material, that is, the topological insulator may be HgTe or Bi _x Sb _1-x or Sb ₂ Te ₃ or Bi ₂ Te ₃ or Bi ₂ Se ₃ or T _l BiTe ₂ or T _l BiSe ₂ or Ge ₁ Bi ₄ Te ₇ or Ge ₂ Bi ₂ Te ₅ or Ge ₁ Bi ₂ Te ₄ or AmN or PuTe or a single layer of tin or single Layer tin variant material. It may also be a mixed material formed of a plurality of the above materials, and for example, may be a mixed material formed of two of the above materials. Of course, it is also possible to form a mixed material or the like of three of the above materials. And when the topological insulator is a mixed material formed of at least two materials, it is also possible to improve the characteristics of the material after mixing by selecting materials having complementary characteristics.

For example, the topological insulator can be a single layer of tin or a single layer of tin of a variant material. A single layer of tin is a two-dimensional material with only one tin atom thickness, and the level of the atomic layer thickness makes it have a good light transmittance; Similar to graphene, tin has good toughness and high light transmittance.

A single layer of tin atoms can reach 100% at room temperature and may become a superconductor material. For example, a single layer of tin variant material is formed by surface modification or magnetic doping of a single layer of tin. Surface modification of a single layer of tin may be accomplished by adding functional groups such as -F, -Cl, -Br, -I and -OH to a single layer of tin.

For another example, the single-layer tin variant material may be a tin-fluoride compound formed by surface modification of a single layer of tin with a fluorine atom. When F atoms are added to a single-layer tin atom structure, the conductivity of a single layer of tin can reach 100% at temperatures up to 100 ° C, and the properties are still stable.

Hereinafter, the first electrode is located on the array substrate, the second electrode is located on the package substrate, or the first electrode and the second electrode are both located on the array substrate, or several common cases in which the first electrode and the second electrode are located on the package substrate. For example, the first electrode and the second electrode are both topological insulators of a two-dimensional nanostructure.

For example, the first electrode and the second electrode may both be formed on the array substrate. As shown in FIG. 4, the first substrate 20 of the array substrate 200 is formed with a first electrode 27 and a second electrode 28, and the first electrode 27 is formed on The thin film transistor 21 and the upper surface of the organic light emitting device (including the anode 23, the light emitting function layer 24, and the cathode 25) are insulated from each other by the passivation layer 26; the second electrode 28 is formed on the upper surface of the first electrode 27, and the first electrode 27 An insulating layer 29 is formed between the second electrode 28. The first electrode 27 is adhered to the passivation layer 26 by the adhesive layer 40, and the second electrode 28 is adhered to the insulating layer 29 by the adhesive layer 40.

For example, as shown in FIG. 4, a barrier layer 30 may be formed on the array substrate 200, and a barrier layer 30 is formed on the upper surface of the second electrode 28. For example, the barrier layer 30 can be used as a flat layer and can also be used to isolate moisture.

For example, the insulating layer 29 may have an adhesive property, and the second electrode 28 may be directly adhered to the insulating layer 29.

The "upper" and "lower" in the embodiments of the present invention are based on the order in which the film or layer structure is manufactured. For example, the upper pattern refers to the pattern formed later, and the lower pattern refers to the relative formation. picture of.

For example, the first electrode and the second electrode may both be formed on the package substrate. As shown in FIG. 5, the second substrate 10 of the package substrate 100 is formed with a first electrode 27 and a second electrode 28; wherein, the first electrode 27 The second electrode 28 and the second electrode 28 are not in contact with each other through the insulating layer 29. The first electrode 27 is adhered by the adhesive layer 40 On the second substrate 10, the second electrode 28 is adhered to the insulating layer 29 by the adhesive layer 40.

For another example, as shown in FIG. 5, a barrier layer 30 may be formed on the package substrate 100, and the barrier layer 30 is formed on the upper surface of the second electrode 28. The barrier layer 30 can be used as a flat layer and can also be used to isolate moisture.

Further, for example, the insulating layer 29 may have an adhesive property, and the second electrode 28 may be directly adhered to the insulating layer.

For example, the package substrate may be a color filter substrate on which a color film layer and a black matrix are formed on a second substrate (which may be a glass substrate).

For example, the first electrode may be formed on the array substrate, and the second electrode may be formed on the package substrate. As shown in FIG. 6, the first electrode 27 is formed on the thin film transistor 21 of the array substrate 200 and the organic light emitting device (including the anode 23 and the light emitting function layer). 24 and the upper surface of the cathode 25) are insulated from each other by the passivation layer 26; the second electrode 28 is formed on the second substrate 10 of the package substrate 100, and the insulating layer 29 is formed on the second electrode 28. The insulating layer 29 can be used to block moisture and can also be used to planarize the package substrate. The first electrode 27 is adhered to the passivation layer 26 of the first substrate 20 by the adhesive layer 40, and the second electrode 28 is adhered to the second substrate 10 by the adhesive layer 40.

It should be noted that the first electrode and the second electrode may be respectively located on the array substrate and the package substrate, and may be formed in different manners according to the film on the array substrate and the package substrate, and the embodiments and the drawings are only the above. Several examples are described, but the invention is not limited thereto.

The embodiment of the present invention further provides a display device comprising the touch function enabled light emitting display device according to any one of the embodiments of the present invention. The display device may be a display device such as an OLED display, and any product or component having a display function such as an electronic paper, a television, a digital camera, a digital photo frame, a mobile phone, a watch, a tablet, a navigator, and the like including the display device.

The embodiment provides a method for fabricating an organic light emitting display device with a touch function, which may include the following steps.

Step 101: Form a first electrode pattern and/or a second electrode pattern of the two-dimensional nanostructure by using a topological insulator.

When the organic light emitting display device has only the first electrode as a two-dimensional nanostructure topological insulator, it is only necessary to form a first electrode pattern of the two-dimensional nanostructure by using the topological insulator; when the organic light emitting display device only has the second electrode as a two-dimensional nanostructure The topological insulator only needs to form a second electrode pattern of the two-dimensional nanostructure by using the topological insulator; when the first electrode and the second electrode of the organic light emitting display device are two-dimensional nanostructure topological insulators, the topological insulator is used to form the two-dimensional Nanostructured a first electrode pattern and a second electrode pattern.

Taking the first electrode pattern of the two-dimensional nanostructure formed by the topological insulator as an example, the manufacturing method of the above step 101 will be described, for example, it may include the following steps.

Step 1011: Perform pattern etching on the substrate to form a pattern corresponding to the first electrode.

For example, the substrate may be mica, may also be SrTiO ₃ (111), and other substrates on which the topological insulator film can be grown by molecular beam epitaxy. In the embodiment of the present invention, the base is mica as an example for detailed description.

For example, the substrate is patterned and etched to form a pattern corresponding to the first electrode, and the same mask pattern as the first electrode pattern may be used, and the mica substrate is plasma etched under the mask of the mask to obtain The first electrode pattern is the same patterned mica substrate.

Step 1012: forming a thin film of a two-dimensional nanostructured topological insulator on the surface of the patterned substrate.

For example, a Bi ₂ Se ₃ film is grown by molecular beam epitaxy on the surface of the patterned mica substrate. Of course, other topological insulator films can also be grown. In the embodiment of the present invention, the top insulator is Bi ₂ Se ₃ as an example for detailed description.

Step 1013, removing the substrate to obtain a first electrode pattern.

The mica substrate is dissolved to obtain a first electrode pattern of a two-dimensional nanostructured topological insulator.

For example, the pattern of the first electrode forming the topological insulator of the two-dimensional nanostructure is taken as an example, and the pattern of the second electrode forming the topological insulator of the two-dimensional nanostructure may refer to the description of the pattern forming the first electrode, which is not used in the embodiment of the present invention. Narration.

Step 102, forming an array substrate and a package substrate.

For example, the first electrode pattern and/or the second electrode pattern are adhered to the first substrate of the array substrate and/or the second substrate of the package substrate through the adhesive layer to be on the array substrate and/or the package substrate. Forming a first electrode and a second electrode that are not in contact with each other; the first electrode and the second electrode are a driving electrode and a sensing electrode, respectively.

Forming a first electrode and a second electrode on the array substrate and/or the package substrate, that is, the first electrode and the second electrode may be formed on the array substrate; or the first electrode and the second electrode are formed on the package substrate Or an electrode; or a first electrode and a second electrode are respectively formed on the array substrate and the package substrate. That is, the first electrode may be formed on the array substrate, and the second electrode may be formed on the package substrate. Alternatively, when the second electrode is formed on the array substrate, the first electrode may be formed on the package substrate.

Attaching the first electrode pattern and/or the second electrode pattern to the first substrate of the array substrate and/or the second substrate of the package substrate through the adhesive layer comprises: at the first electrode pattern and/or the second electrode pattern Forming an adhesive layer on the surface, attaching the first electrode pattern and/or the second electrode pattern to the first substrate region and/or the second electrode region of the first substrate of the array substrate and/or the second substrate of the package substrate .

For example, the first electrode is formed on the array substrate, that is, the adhesive layer may be formed on the surface of the first electrode pattern, and the side on which the first electrode pattern is formed with the adhesive layer is attached to the first substrate of the array substrate. An electrode region to form a first electrode. It should be noted that the first substrate may be a glass substrate or other thin film or layer structure formed on the glass substrate.

Step 103: Pair the array substrate and the package substrate.

For example, it may be that the array substrate and the package substrate are formed with a film or device structure on one side of the opposite pair.

Several specific examples are listed below to illustrate the specific fabrication method of the above step 102.

For example, forming the array substrate can include the following steps:

Step 201, forming a thin film transistor, an organic light emitting device, and a passivation layer on the first substrate of the array substrate.

For example, forming a thin film transistor, an organic light emitting device, and a passivation layer on the first substrate can be referred to a usual fabrication method.

Step 202, bonding the first electrode to the first substrate.

For example, an adhesive layer may be formed on the surface of the first electrode pattern, and the first electrode pattern may be attached to the first electrode region corresponding to the passivation layer on the first substrate.

Step 203, forming an insulating layer on the first electrode.

For example, the insulating layer may be formed by deposition or the like.

Step 204, forming a second electrode on the insulating layer.

For example, an adhesive layer may be formed on the surface of the second electrode pattern, and the second electrode pattern may be attached to the second electrode region corresponding to the insulating layer on the first substrate. Alternatively, if the insulating layer has adhesive properties, the second electrode may be attached to the insulating layer.

Step 205, forming a barrier layer on the second electrode.

That is, the array substrate 200 shown in FIG. 4 can be formed through the above steps 201-205, and the array substrate 200 can be packaged through the glass substrate (ie, the package substrate 100) to form an organic light emitting display device as shown in FIG.

Forming the first electrode pattern and/or the second electrode pattern of the two-dimensional nanostructure by using the topological insulator, that is, the material forming the first electrode pattern and/or the second electrode pattern of the two-dimensional nano structure may include only the topological insulator, or may be The mixed material formed by the topological insulator and the polymer is described in detail in the embodiment of the present invention by taking the material forming the first electrode pattern and/or the second electrode pattern as a topological insulator.

It should be noted that the first electrode pattern corresponds to the first electrode before being attached to the substrate, the second electrode pattern corresponds to the second electrode before being attached to the substrate, and the first electrode region corresponds to the sticker of the first electrode Attached to the location. The second electrode region corresponds to the attachment position of the second electrode.

For another example, forming the package substrate may include the following steps:

Step 301: Adhering the first electrode to the second substrate of the package substrate.

For example, an adhesive layer may be formed on the surface of the first electrode pattern, and the first electrode pattern may be attached to the first electrode region of the second substrate.

Step 302, forming an insulating layer on the first electrode.

For example, the insulating layer may be formed by deposition or the like.

Step 303, forming a second electrode on the insulating layer.

For example, it may be that a second electrode region is formed by forming an adhesive layer on the surface of the second electrode pattern and attaching the second electrode pattern to the insulating layer on the second substrate. Alternatively, if the insulating layer has adhesive properties, the second electrode may be attached to the insulating layer.

Step 304, forming a barrier layer on the second electrode.

That is, the package substrate 100 shown in FIG. 5 can be formed through the above steps 301-304, and the package substrate shown in FIG. 5 is used to package a general array substrate to form an organic light-emitting display device.

For another example, forming the array substrate and forming the package substrate may include the following steps:

Step 401, forming a thin film transistor, an organic light emitting device, and a passivation layer on the first substrate of the array substrate.

For example, a thin film transistor organic light-emitting device and a passivation layer are formed on the first substrate, and the usual fabrication method can be referred to.

Step 402, bonding the first electrode to the first substrate.

For example, an adhesive layer may be formed on the surface of the first electrode pattern, and the first electrode pattern may be attached to the first electrode region corresponding to the passivation layer on the first substrate.

Step 403, bonding the second electrode to the second substrate of the package substrate.

For example, an adhesive layer may be formed on the surface of the second electrode pattern, and the second electrode pattern may be attached to the second electrode region of the second substrate.

Step 404, forming an insulating layer on the second electrode.

For example, the insulating layer may be formed by deposition or the like.

That is, the array substrate 200 and the package substrate 100 as shown in FIG. 6 can be formed through the above steps 401-440, and the array substrate and the package substrate are packaged to form an organic light emitting display device.

An embodiment of the present invention provides an organic light emitting display with a touch function, a manufacturing method thereof, and a display device. The organic light emitting display with touch function includes a first electrode and a second electrode that are not in contact with each other, a first electrode and/or The second electrode is a two-dimensional nanostructured topological insulator, which greatly reduces the resistance of the electrode relative to the electrode formed of ITO or metal, thereby improving the touch response rate, and the electrode length of the two-dimensional nanostructure topological insulator is formed. Time consumption will not heat up, not only can reduce power consumption, but also avoid the problem that high temperature affects the performance of other devices.

It should be noted that the method for fabricating the organic light-emitting display device with the touch function provided by the embodiment of the present invention is not limited to the above-exemplified steps, and the embodiments of the present invention are only described in detail by way of example.

The above description is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It is intended to be covered by the scope of the invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

The present application claims the priority of the Chinese Patent Application No. 201410381376.1 filed on Aug. 5, 2014, the entire disclosure of which is hereby incorporated by reference.

Claims (19)

An organic light emitting display device with touch function, comprising an array substrate and a package substrate of a pair of boxes, wherein the array substrate is provided with a thin film transistor and an organic light emitting device, wherein the array substrate and/or the package substrate Providing a first electrode and a second electrode that are not in contact with each other, the first electrode and the second electrode are respectively a driving electrode and a sensing electrode; The material forming the first electrode and/or the second electrode comprises a topological insulator, the first electrode and/or the second electrode having a two-dimensional nanostructure. The organic light emitting display device of claim 1, wherein the material forming the first electrode and the second electrode comprises a topological insulator, the first electrode and the second electrode having a two-dimensional nanostructure, The first electrode and the second electrode are both formed on the array substrate, The first electrode is formed on a thin film transistor and an organic light emitting device; The second electrode is formed on the upper surface of the first electrode, and an insulating layer is formed between the first electrode and the second electrode. The organic light emitting display device of claim 2, further comprising a barrier layer, wherein the barrier layer is disposed on the second electrode. The organic light emitting display device of claim 1, wherein the material forming the first electrode and the second electrode comprises a topological insulator, the first electrode and the second electrode having a two-dimensional nanostructure, The first electrode and the second electrode are both disposed on the package substrate, The first electrode is disposed on the package substrate; The second electrode is disposed on the upper surface of the first electrode, and an insulating layer is disposed between the first electrode and the second electrode. The organic light emitting display device of claim 1, wherein the material forming the first electrode and the second electrode comprises a topological insulator, the first electrode and the second electrode having a two-dimensional nanostructure, The first electrode and the second electrode are respectively disposed on the array substrate and the package substrate, The first electrode is disposed on a thin film transistor of the array substrate and an upper surface of the organic light emitting device; The second electrode is disposed on the package substrate, and the second electrode is provided with an insulating layer. The organic light-emitting display device according to any one of claims 2 to 5, wherein the insulating layer has an adhesive property. The organic light-emitting display device according to any one of claims 1 to 5, wherein the first electrode and/or the second electrode are adhered to the array substrate and/or the package substrate through an adhesive layer. The organic light-emitting display device according to any one of claims 1 to 7, wherein the topological insulator comprises HgTe, Bi _x Sb _1-x , Sb ₂ Te ₃ , Bi ₂ Te ₃ , Bi ₂ Se ₃ , T ₁ At least one of BiTe ₂ , T ₁ BiSe ₂ , Ge ₁ Bi ₄ Te ₇ , Ge ₂ Bi ₂ Te ₅ , Ge ₁ Bi ₂ Te ₄ , AmN, PuTe, a single-layer tin, and a single-layer tin variant material. The organic light-emitting display device according to claim 8, wherein the single-layer tin variant material is formed by surface modification or magnetic doping of a single layer of tin. The organic light-emitting display device according to claim 9, wherein the single-layer tin variant material is a tin-fluoride compound formed by surface-modifying a single-layer tin with a fluorine atom. A method for manufacturing an organic light emitting display device with touch function, comprising: Forming a first electrode pattern and/or a second electrode pattern of the two-dimensional nanostructure using a topological insulator; Forming the array substrate and the package substrate, comprising: adhering the first electrode pattern and/or the second electrode pattern to the first substrate of the array substrate and/or the second substrate of the package substrate through the adhesive layer And forming a first electrode and a second electrode that are not in contact with each other on the array substrate and/or the package substrate; wherein the first electrode and the second electrode are respectively a driving electrode and a sensing electrode; The array substrate and the package substrate are paired. The fabricating method according to claim 11, wherein the forming the array substrate comprises: Forming a thin film transistor and an organic light emitting device on the first substrate of the array substrate; Adhering a first electrode to the first substrate; Forming an insulating layer on the first electrode; Forming a second electrode on the insulating layer; Wherein, the material forming the first electrode and the second electrode comprises a topological insulator, and the first electrode and the second electrode have a two-dimensional nanostructure. The method of fabricating according to claim 12, further comprising forming a barrier layer on the second electrode. The manufacturing method according to claim 11, wherein the forming the package substrate comprises: Bonding the first electrode to the second substrate of the package substrate; Forming an insulating layer on the first electrode; Forming a second electrode on the insulating layer; Wherein, the material forming the first electrode and the second electrode comprises a topological insulator, and the first electrode and the second electrode have a two-dimensional nanostructure. The fabricating method according to claim 11, wherein the forming the array substrate comprises: Forming a thin film transistor and an organic light emitting device on the first substrate of the array substrate; Adhering a first electrode to the first substrate; Forming the package substrate includes: Bonding the second electrode to the second substrate of the package substrate; Forming an insulating layer on the second electrode; Wherein, the material forming the first electrode and the second electrode comprises a topological insulator, and the first electrode and the second electrode have a two-dimensional nanostructure. The manufacturing method according to any one of claims 12 to 15, wherein the insulating layer has an adhesive property. The manufacturing method according to any one of claims 11 to 15, wherein an adhesive layer is formed on a surface of the first electrode pattern and/or the second electrode pattern, the first electrode pattern and/or the The second electrode pattern is attached to the first electrode region and/or the second electrode region of the first substrate of the array substrate and/or the second substrate of the package substrate. The manufacturing method according to any one of claims 11 to 17, wherein the forming the first electrode pattern and/or the second electrode pattern using the topological insulator to form the two-dimensional nanostructure comprises: Patterning etching the substrate to form a pattern corresponding to the first electrode and/or a pattern of the second electrode; Forming a thin film of a topological insulator having a two-dimensional nanostructure on the surface of the patterned substrate; The substrate is removed to obtain a first electrode pattern and/or a second electrode pattern. A display device comprising the touch-enabled organic light-emitting display device according to any one of claims 1 to 10.

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