JP2014527295A - Touch display device and manufacturing method thereof - Google Patents

Abstract

The present invention discloses a touch display device and a manufacturing method thereof, and the display device includes an OLED display layer provided on a lower substrate, an upper substrate, and between the upper substrate and the lower substrate. And a touch module provided on the OLED display layer. The touch module includes first and second detection circuit layers, and further includes the first and second detection circuits. The circuit layers are separated and the distance between them is 2 um or more. Since the display device can reduce interference of the detection circuit due to the coupling capacitance formed between the detection circuit layers, the accuracy of touch detection can be improved.

[Selection] Figure 2

Description

  The present disclosure relates to a touch display device and a manufacturing method thereof, and more particularly, to an OLED touch display device and a manufacturing method thereof.

  At present, human-machine interface technology is growing rapidly, among which OLED displays are a new type of display thanks to the advantages of self-luminous panel, high brightness, high response speed and low power consumption. As it is preferred by many people, it is widely used with its future potential at the moment.

  In addition, touch screens are gradually replacing keyboards, mice, and other traditional input devices as a new type of input device, thanks to the advantages of being lighter, thinner and more humane . Touch screen users can perform input operations while browsing the content displayed on the screen, which makes the interaction between humans and machines very convenient and accurate. For this reason, touch screens are widely used in PDAs, mobile phones, GPS, and other portable electronic products.

  Considering the many advantages of OLEDs and touch devices, more and more attention is focused on the development of OLED displays with integrated touch functionality. FIG. 1 shows a conventional OLED touch display 1. The touch display 1 includes an upper substrate 11, a lower substrate 12, a capacitive touch module 13 therebetween, an OLED display module 14, and a sealing adhesive layer 15. The upper substrate 11 includes an upper surface 111 used for touching and a lower surface 112 encapsulated in a display. The capacitive touch module 13 is configured on the lower surface 112 of the upper substrate 11 and includes a first conductive film 131, a second conductive film 133, and an insulating film 132 between the two. The OLED display module 14 is disposed on the inner surface 121 of the lower substrate 12, while the outer surface 122 is exposed outside the display. The OLED display structure 14 includes a hole injection layer 141, an organic light emitting layer 142, and an electron injection layer 143. By incorporating the touch module 13 into the OLED display 14, the thickness of the display 1 can be effectively reduced.

  However, since there is only one insulating film 132 between the first conductive film 131 and the second conductive film 133 of the touch module 13 and the thickness thereof is generally less than 2 μm, the first conductive film 131 and the second conductive film 131 A relatively large coupling capacitance is generated between the conductive film 133 and the conductive film 133 due to the close distance. In actual detection, in addition to the finger touch, there is a capacitance between the finger and the panel. In addition, other incidental capacitance is generated between the two electrode layers or between the electrodes and the surrounding environment. The greater the associated capacitance, the greater the signal detection interference. The large coupling capacitance generated between the first conductive film 131 and the second conductive film 133 constitutes a part of the incidental capacitance, and therefore the coupling capacitance increases the capacitance detection accuracy at the touch position. It will have an effect.

  The present invention provides a touch display device capable of detecting touch with higher accuracy and a method for manufacturing the same.

According to the present disclosure, the touch display is
An OLED display layer provided on the lower substrate;
An upper substrate;
An air layer formed between the upper substrate and the lower substrate;
A touch module provided on the OLED display layer,
The touch module is
A first sensing circuit layer;
A second sensing circuit layer,
The first and second detection circuit layers are separated from each other, and a distance between them is 2 μm or more.

In one embodiment, the air layer is between the first and second sensing circuit layers,
The upper substrate is
A first surface remote from the OLED display layer;
The first sensing circuit layer is provided, and a second surface close to the OLED display layer,
Further, the second detection circuit layer is provided on the OLED display layer.

In one embodiment, the touch display device further includes a protective layer,
The protective layer covers the OLED display layer, and the second detection circuit layer is provided on the protective layer.

  In one embodiment, the first and second sensing circuit layers are disposed opposite to each other, and the thickness of the air layer therebetween is in the range of 5 μm to 100 μm.

  In one embodiment, the touch display further includes a sealing adhesive layer formed between the upper substrate and the lower substrate, and the OLED display layer and the touch module include the substrate, the lower substrate, and the lower substrate. It is enclosed in a space formed by the side substrate and the sealing adhesive layer.

In one embodiment, the gas layer and the upper substrate are between the first and second sensing circuit layers,
The upper substrate is
A first surface provided with the first sensing circuit layer away from the OLED display layer;
A second surface close to the OLED display layer,
The second detection circuit layer is provided on the OLED display layer.

In one embodiment, the touch display device includes:
A protective layer,
The protective layer covers the OLED display layer, and the second detection circuit layer is provided on the protective layer.

In one embodiment, the touch display is
A sealing adhesive layer formed between the upper substrate and the lower substrate;
The OLED display layer and the second detection circuit layer are sealed in a space formed by the substrate, the lower substrate, and the sealing adhesive layer.

In one embodiment, the upper substrate is between the first and second sensing circuit layers,
The substrate is
Comprising a first surface and a second surface;
Furthermore, the first detection circuit layer is provided on the second surface, and the second detection circuit layer is provided on the first surface.

In one embodiment, the first detection circuit layer is a first pattern conductive film including a plurality of first touch electrode serials extending along a first direction,
Each first touch electrode serial is
Comprising a plurality of electrically connected first touch electrodes;
Further, the second detection circuit layer is a second pattern conductive film including a plurality of second touch electrode serials extending along the second direction,
Each second touch electrode serial is
A plurality of electrically connected second touch electrodes;
Further, the first direction and the second direction are different.

  In one embodiment, the first pattern conductive film and the second pattern conductive film are transparent conductive films.

In one embodiment, the OLED display layer is
A group of active elements provided on the lower substrate;
An organic light emitting layer provided on the active element group,
The organic light emitting layer includes a counter electrode, a pixel electrode, and an intermediate layer therebetween.

  In one embodiment, the protective layer is made of an insulating material.

According to the present disclosure, a method for manufacturing a touch display device includes:
An OLED display layer is disposed on the lower substrate disposed opposite to the upper substrate through an air layer between the upper substrate and the lower substrate;
Forming a touch module on the OLED display layer;
The touch module is
Comprising first and second sensing circuit layers;
Further, the first and second detection circuit layers are separated from each other, and a distance between them is 2 μm or more.

In one embodiment, the air layer is between the first and second sensing circuit layers,
The upper substrate is
A first surface remote from the OLED display layer;
The first sensing circuit layer is provided, and a second surface close to the OLED display layer,
Further, the second detection circuit layer is provided on the OLED display layer.

In one embodiment, the touch display device includes:
A protective layer covering the OLED display layer;
The second detection circuit layer is provided on the protective layer.

  In one embodiment, the first and second sensing circuit layers are disposed to face each other, and the thickness of the air layer therebetween is 5 μm to 100 μm.

  In one embodiment, the touch display device further includes a sealing adhesive layer that bonds the upper substrate and the lower substrate, and the OLED display layer and the touch module include the upper substrate and the lower substrate. It is enclosed in a space formed by the side substrate and the sealing adhesive layer.

In one embodiment, the gas layer and the upper substrate are between the first and second sensing circuit layers,
The upper substrate is
A first surface provided with the first sensing circuit layer away from the OLED display layer;
A second surface close to the OLED display layer,
The second detection circuit layer is provided on the OLED display layer.

In one embodiment, the touch display device includes:
A protective layer covering the OLED display layer;
The second detection circuit layer is provided on the protective layer.

  In one embodiment, the touch display device further includes a sealing adhesive layer that bonds the upper substrate and the lower substrate, and the OLED display layer and the second detection circuit layer include the upper substrate. , And enclosed in a space formed by the lower substrate and the sealing adhesive layer.

In one embodiment, the upper substrate is between the first and second sensing circuit layers,
The upper substrate is
Comprising a first surface and a second surface;
Furthermore, the first detection circuit layer is provided on the second surface, and the second detection circuit layer is provided on the first surface.

In one embodiment, the method for forming the OLED display layer comprises:
An active element group is disposed on the lower substrate;
An organic light emitting layer having a counter electrode, a pixel electrode, and an intermediate layer is disposed on the active element group.

  In an embodiment, a distance between the first and second detection circuit layers of the touch display device is equal to or greater than a thickness of the insulating layer. Thereby, since the interference of the touch detection due to the coupling capacitance generated between the two detection circuit layers is greatly suppressed, the accuracy of the touch detection is improved.

FIG. 1 is a schematic view of a conventional OLED touch display. FIG. 2 is a schematic diagram of the touch display device according to Embodiment 1 of the present invention. FIG. 3 is a schematic diagram of the first detection circuit layer pattern. FIG. 4 is a schematic diagram of the second detection circuit layer pattern. FIG. 5 is a schematic diagram of a touch display device according to Embodiment 2 of the present invention. FIG. 6 is a schematic diagram of a touch display device according to Embodiment 3 of the present invention. FIG. 7 is a flowchart of the manufacturing method of the touch display device according to the first embodiment of the present invention.

  According to the usual meaning of 'a' or 'the' in patents and references, for example, an electrode or 'the' electrode includes one or more electrodes. In this application, the use of the singular includes the plural and vice versa unless specifically stated otherwise. For example, the term 'active element group' includes singular and plural forms. The item headings used here are for organizational purposes only and do not limit the subject matter of the description.

  The detailed description of the present invention is described in the following embodiments. These do not limit the scope of the present invention and can be applied to other applications. Although the drawings are described in detail, the quantity of the disclosed components may be greater or less than the disclosed quantities unless explicitly limiting the quantity of these components.

<Embodiment 1>
FIG. 2 is a schematic diagram of the touch display device according to Embodiment 1 of the present invention. As shown in FIG. 2, the touch display device 2 according to the present embodiment includes an OLED display layer 90 provided on the lower substrate 30, an upper substrate 20, and between the upper substrate 20 and the lower substrate 30. And a touch module 60 formed by the first detection circuit layer 601 and the second detection circuit layer 602, wherein the first and second detection circuit layers are separated from each other, and The distance between is 2 um or more.

  The upper substrate 20 and the lower substrate 30 may be made of a transparent material such as a solid glass substrate or a soft plastic substrate. The upper substrate 20 includes a first surface 201 separated from the OLED display layer 90 and a second surface 202 close to the OLED display layer 90, and the first detection circuit layer 601 is formed on the second surface 202 of the upper substrate 20. While the first surface 201 of the upper substrate 20 is used only for touching by the user. The lower substrate 30 and the upper substrate 20 are disposed to face each other. The lower substrate 30 includes a first surface 301 close to the OLED display layer 90 and a second surface 302 remote from the OLED display layer 90. The first surface 301 of the lower substrate 20 faces the second surface 202 of the upper substrate, while the other external surface 302 belongs to the external surface of the touch display device body. The OLED display layer 90 is provided on the lower substrate 30, specifically, the first surface 301 of the lower substrate 30, the second detection circuit layer 602 is provided on the OLED display layer 90, and the first It is provided to face the detection circuit layer 601.

  Furthermore, the touch display device 2 may also include a protective layer 70 that covers the surface of the OLED display layer 90, and the second detection circuit layer 602 may be further provided on the surface of the protective layer 70.

  FIG. 3 is a schematic diagram of the first detection circuit layer pattern. As shown in FIG. 3, the first detection circuit layer 601 is a first pattern conductive film including a plurality of first touch electrode serials 6011 extending along the first direction 21, and each first touch electrode serial 6011. Comprises a plurality of electrically connected first touch electrodes 6012. The first detection circuit layer 601 may be a transparent conductive film. The material of the transparent conductive film is made of indium zinc oxide, zinc oxide doped with gallium, zinc oxide doped with aluminum, fluorine oxide tin, antimony. It can be selected from doped tin oxide, indium tin oxide, aluminum oxide zinc, and other metal oxides. The pattern of the first detection circuit layer is not limited to the pattern mode shown in FIG. For example, the first detection circuit layer may be composed of a plurality of strip-like patterns parallel to each other.

  FIG. 4 is a schematic diagram of a second detection circuit layer pattern. As shown in FIG. 4, the second detection circuit layer 602 is a second pattern conductive film including a plurality of second touch electrode serials 6021 extending along the second direction 22, and each second touch electrode serial 6021. Includes a plurality of second touch electrodes 6012 that are electrically connected. The second detection circuit layer 602 may be a transparent conductive film. The material of the transparent conductive film is made of indium zinc oxide, zinc oxide doped with gallium, zinc oxide doped with aluminum, fluorine oxide tin, antimony. It can be selected from doped tin oxide, indium tin oxide, aluminum oxide zinc, and other metal oxides. The pattern of the second detection circuit layer is not limited to the pattern mode shown in FIG. For example, the second detection circuit layer may be composed of a plurality of strip-like patterns parallel to each other. The first direction 21 and the second direction 22 may be an X axis and a Y axis of an orthogonal coordinate system, or may be a T axis and an N axis of tangential / standard coordinates.

  Referring back to FIG. 2, the gas layer 603 is between the first detection circuit layer 601 and the second detection circuit layer 602, and the gas layer 603 includes the first detection circuit layer 601 and the second detection circuit layer 602. In addition to being electrically insulated, it also functions as an insulator. Thereby, the conventional manufacturing process of disposing the insulating layer between the first detection circuit layer 601 and the second detection circuit layer 602 is omitted, so that the manufacturing process is simplified and the manufacturing cost is reduced. Furthermore, since the distance between the first detection circuit layer 601 and the second detection circuit layer 602 is 2 μm or more and the distance between the two is more than the thickness of the insulating layer that is usually provided, touch detection During this, the effect of the coupling capacitance between the two is reduced, and as a result, the accuracy of touch detection is improved. Furthermore, considering the sensitivity and accuracy of touch detection, the thickness of the air layer 603 is preferably set to a predetermined distance of 5 μm to 100 μm.

  When a conductive object (such as a finger or stylus) touches or approaches the first surface 201 of the upper substrate 20, the first detection circuit layer 601 and the second detection circuit layer 602 each generate a detection signal, and the touch detection circuit Determines the horizontal and vertical coordinates of the touch based on the change in the detection signal before and after the touch.

  Referring back to FIG. 2, the OLED display layer 90 is provided on the first surface 301 of the lower substrate 30. The OLED display layer 90 includes an active element group 80 and an organic light emitting layer 40. The organic light emitting layer 40 includes a counter electrode 401, a pixel electrode 403, and an intermediate layer 402 between the counter electrode 401 and the pixel electrode 403. . The active element group 80 is provided on the first surface 301 of the lower substrate 30, and the active element group 80 includes a plurality of active elements (not shown). Each active element is electrically connected to a pixel electrode 403 provided thereon.

  The pixel electrode 403 and the counter electrode 401 serve as a cathode electrode and an anode electrode of the OLED display layer, respectively. When the pixel electrode 403 is an anode electrode, the counter electrode 401 is a cathode electrode. However, the order can be changed. When the pixel electrode 403 is a cathode electrode, the counter electrode 401 is an anode electrode.

When the pixel electrode 403 is an anode electrode, the pixel electrode 403 may be formed of a transparent electrode. The transparent conductive electrode can be formed of IZO, ITO, ZnO, In ₂ O ₃ , Ti ₂ O ₃ , Ti ₃ O ₅ or other metal oxides. When the pixel electrode 403 is a cathode electrode, the pixel electrode 403 may be formed of a metal electrode. The metal electrode can be formed of Ni, Ti, Zn, Cr, Mg, Al, In or other materials.

Similarly, when the counter electrode 401 is an anode electrode, the counter electrode 401 may be formed of a transparent electrode. The transparent conductive electrode can be formed of IZO, ITO, ZnO, In ₂ O ₃ , Ti ₂ O ₃ , Ti ₃ O ₅ or other metal oxides. When the counter electrode 401 is a cathode electrode, the counter electrode 401 may be formed of a metal electrode. The metal electrode can be formed of Ni, Ti, Zn, Cr, Mg, Al, In or other materials.

  The intermediate layer 402 is formed between the pixel electrode 403 and the counter electrode 401 and can be formed of an organic material. The intermediate layer 402 may have a stacked structure such as a hole injection layer (HIL), a hole transport layer (HTL), an electron transport layer (ETL), and an electron injection layer (EIL). In addition, different stacked structures may be formed by using together with different material layers.

  The protective layer 70 covers the surface of the counter electrode 401, and the protective layer 70 is mainly made of an insulating material of polyimide (PI), polymethyl methacrylate (PMMA), or polysiloxane (POS). The function of the protective layer 70 is to electrically insulate the second detection circuit layer 602 and the counter electrode 401 and to protect the conductor of the counter electrode 401 from corrosion by oxygen or water vapor.

  In order to prevent the touch display device 2 from corrosion due to oxygen or water vapor, the touch display device 2 further includes a sealing adhesive layer 50. The sealing adhesive layer 50 bonds the upper substrate 20 and the lower substrate 30 together. Accordingly, the OLED display layer 90 and the touch module 60 are formed in the space between the upper substrate 20 and the lower substrate 30.

<Embodiment 2>
FIG. 5 is a schematic diagram of a touch display device according to Embodiment 2 of the present invention. The touch display device includes an upper substrate 20, a lower substrate 30, a protective layer 70, an OLED display layer 90, and a touch module 60. The components used in this embodiment and the relative positions between these components are similar to those in the first embodiment, and the main difference is that the position of the touch module 60 is between other components. Is a point. In the first embodiment, the gas layer 603 is between the first detection circuit layer 601 and the second detection circuit layer 602. More specifically, the first detection circuit layer 601 and the second detection circuit layer 602 of the touch module 60 were provided on the second surface 202 of the upper substrate 20 and the OLED display layer 90, respectively. More specifically, the second detection circuit layer 602 is provided on the surface of the protective layer 70 that covers the OLED display layer 90. However, in the second embodiment, the upper substrate and the gas layer are between the first detection circuit layer 601 and the second detection circuit layer 602. More specifically, the first detection circuit layer 601 is provided on the first surface 201 of the upper substrate 20, and the second detection circuit layer 602 is still provided on the surface of the protective layer 70. Since the other components of the present embodiment and the positional relationship between these components are described in detail in the first embodiment, description thereof is omitted here.

<Embodiment 3>
FIG. 6 is a schematic diagram of a touch display device according to Embodiment 3 of the present invention. The components used in this embodiment and the relative positions between these components are similar to those in the first embodiment, and the main difference is that the position of the touch module 60 is between other components. Is a point. That is, in the first embodiment, the gas layer 603 is between the first detection circuit layer 601 and the second detection circuit layer 602. More specifically, the first detection circuit layer 601 and the second detection circuit layer 602 of the touch module 60 were provided on the second surface 202 of the upper substrate 20 and the surface of the protective layer 70, respectively. . However, in the present embodiment, the upper substrate 20 is between the first detection circuit layer 601 and the second detection circuit layer 602. More specifically, the second detection circuit layer 602 is provided on the first surface 201 of the upper substrate 20, and the first detection circuit layer 601 is provided on the second surface 202 of the upper substrate 20. Since other components of the present embodiment and the positional relationship between these components are described in detail in the first embodiment, description thereof is omitted here.

  FIG. 7 is a flowchart showing a method for manufacturing the touch display device according to Embodiment 1 of the present invention. Referring to FIG. 2 at the same time, the manufacturing method arranges the OLED display layer 90 on the lower substrate 30 to form the touch module 60. Here, in the method of forming the touch module 60, the first detection circuit layer 601 is disposed on the upper substrate 20, the upper substrate 20 and the lower substrate 30 are disposed to face each other, and the OLED display layer 90 is protected. A second sensing circuit layer 602 is disposed on the surface of the layer 70. The OLED display layer 90 includes an active element group 80 and an organic light emitting layer 40, and the organic light emitting layer 40 includes a counter electrode 401, a pixel electrode 403, and an intermediate layer 402 between the counter electrode 401 and the pixel electrode 403. . The detailed steps of the manufacturing method are as follows.

  Step S <b> 1: The active element group 80 is arranged in the arrangement region of the lower substrate 30.

  Step S2: The organic light emitting layer 40 is disposed on the active element group 80. The organic light emitting layer 40 is formed by forming a pixel electrode 403 that covers the active element group 80 and is electrically connected to the active element group 80, and then forms an intermediate layer 402 on the pixel electrode 403. Finally, the counter electrode 401 is formed on the intermediate layer 402.

  Step S3: The protective layer 70 is disposed on the organic light emitting layer 40, and the counter electrode 401 of the organic light emitting layer 40 is covered.

  Step S4: The second detection circuit layer 602 is disposed on the protective layer 70. Here, the second detection circuit layer 602 is composed of indium zinc oxide, zinc oxide doped with gallium, zinc oxide doped with aluminum, fluorine oxide / tin, tin oxide doped with antimony, indium tin oxide, or oxide. It is made of a transparent conductive film such as aluminum and zinc, and is formed by a manufacturing process such as screen printing or sputtering.

  Step S <b> 5: The first detection circuit layer 601 is disposed on the second surface 202 of the upper substrate 20. Here, the first detection circuit layer 601 is made of indium zinc oxide, zinc oxide doped with gallium, zinc oxide doped with aluminum, fluorine oxide / tin, tin oxide doped with antimony, indium tin oxide, or oxide. It is made of a transparent conductive film such as aluminum and zinc, and is formed by a manufacturing process such as screen printing or sputtering.

  Step S6: A sealing adhesive layer for bonding the upper substrate 20 and the lower substrate 30 is formed so that the touch module 60 and the OLED display layer 90 are enclosed in a space formed between the two substrates. To do.

  The touch display device made by the above method can effectively suppress the interference between the electrode layers, and can improve the accuracy of detection of the touch position.

  In addition, the manufacturing method of the touch display device of the second embodiment is similar to the manufacturing method of the first embodiment, and the difference is that in the second embodiment, the first detection circuit layer 601 is the first detection circuit layer 601 of the upper substrate 20. One surface 201 is formed.

  Similarly, the manufacturing method of the touch display device of the third embodiment is similar to the manufacturing method of the first embodiment, and the difference is that in the third embodiment, the second detection circuit layer 602 is the second detection circuit layer 602. One surface 201 is formed. Therefore, further explanation is omitted.

  In short, the touch display device of the present invention suppresses the interference of the touch detection signal due to the coupling capacitance generated between the first detection circuit layer and the second detection circuit layer. The design with a larger is adopted, thereby improving the accuracy of touch position detection.

Although the present invention has been described with reference to best mode embodiments, those skilled in the art will recognize that various modifications may be made thereto without departing from the scope of the invention as defined and intended by the appended claims. Changes and replacements may be made.

Claims (23)

An OLED display layer provided on the lower substrate;
An upper substrate;
An air layer formed between the upper substrate and the lower substrate;
A touch module provided on the OLED display layer,
The touch module is
A first sensing circuit layer;
A second sensing circuit layer,
Furthermore, the first display circuit layer and the second detection circuit layer are separated from each other, and a distance between them is 2 μm or more. The air layer is between the first and second sensing circuit layers;
The upper substrate is
A first surface remote from the OLED display layer;
The first sensing circuit layer is provided, and a second surface close to the OLED display layer,
The touch display device according to claim 1, wherein the second detection circuit layer is provided on the OLED display layer. The touch display device includes:
A protective layer,
The touch display device according to claim 2, wherein the protective layer covers the OLED display layer, and the second detection circuit layer is provided on the protective layer.   The touch display device according to claim 2, wherein the first and second detection circuit layers are disposed to face each other, and a thickness of the air layer therebetween is in a range of 5 μm to 100 μm. The touch display device includes:
A sealing adhesive layer formed between the upper substrate and the lower substrate;
The touch display device according to claim 1, wherein the OLED display layer and the touch module are enclosed in a space formed by the upper substrate, the lower substrate, and the sealing adhesive layer. The gas layer and the upper substrate are between the first and second detection circuit layers,
The upper substrate is
A first surface provided with the first sensing circuit layer away from the OLED display layer;
A second surface close to the OLED display layer,
The touch display device according to claim 1, wherein the second detection circuit layer is provided on the OLED display layer. The touch display device includes:
A protective layer,
The touch display device according to claim 6, wherein the protective layer covers the OLED display layer, and the second detection circuit layer is provided on the protective layer. The touch display device includes:
A sealing adhesive layer formed between the upper substrate and the lower substrate;
The touch display device according to claim 6, wherein the OLED display layer and the second detection circuit layer are sealed in a space formed by the upper substrate, the lower substrate, and the sealing adhesive layer. The upper substrate is between the first and second sensing circuit layers;
The upper substrate is
A first surface;
A second surface,
The touch display device according to claim 1, wherein the first detection circuit layer is provided on the second surface, and the second detection circuit layer is provided on the first surface. The first sensing circuit layer is a first pattern conductive film including a plurality of first touch electrode serials extending along a first direction,
Each first touch electrode serial is
Comprising a plurality of electrically connected first touch electrodes;
Further, the second detection circuit layer is a second pattern conductive film including a plurality of second touch electrode serials extending along the second direction,
Each second touch electrode serial is
A plurality of electrically connected second touch electrodes;
The touch display device according to claim 1, wherein the first direction and the second direction are different.   The touch display device according to claim 10, wherein the first pattern conductive film and the second pattern conductive film are transparent conductive films. The OLED display layer is
A group of active elements provided on the lower substrate;
An organic light emitting layer provided on the active element group,
The organic light emitting layer is
A counter electrode;
A pixel electrode;
The touch display device according to claim 1, further comprising an intermediate layer.   The touch display device according to claim 2, wherein the protective layer is made of an insulating material. An OLED display layer is disposed on the lower substrate disposed opposite to the upper substrate through an air layer between the upper substrate and the lower substrate;
Forming a touch module on the OLED display layer;
The touch module is
A first sensing circuit layer;
A second detection circuit layer,
Furthermore, the first and second detection circuit layers are separated from each other, and the distance between them is 2 μm or more. The air layer is between the first and second sensing circuit layers;
The upper substrate is
A first surface remote from the OLED display layer;
The first sensing circuit layer is provided, and a second surface close to the OLED display layer,
The method for manufacturing a touch display device according to claim 14, wherein the second detection circuit layer is provided on the OLED display layer. The touch display device includes:
A protective layer covering the OLED display device;
The touch display device manufacturing method according to claim 15, wherein the second detection circuit layer is provided on the protective layer.   The method of manufacturing a touch display device according to claim 15, wherein the first and second detection circuit layers are disposed to face each other, and the thickness of the air layer between them is in a range of 5 um to 100 um. The touch display device includes:
Furthermore, an adhesive layer for sealing that bonds the upper substrate and the lower substrate is formed,
The method according to claim 15, wherein the OLED display layer and the touch module are enclosed in a space formed by the upper substrate, the lower substrate, and the sealing adhesive layer. The gas layer and the upper substrate are between the first and second detection circuit layers,
The upper substrate is
A first surface provided with the first sensing circuit layer away from the OLED display layer;
A second surface close to the OLED display layer,
The method of claim 14, wherein the second detection circuit layer is provided on the OLED display layer. The touch display device includes:
A protective layer covering the OLED display layer;
The method for manufacturing a touch display device according to claim 19, wherein the second detection circuit layer is provided on the protective layer. The touch display device includes:
Furthermore, an adhesive layer for sealing that bonds the upper substrate and the lower substrate is formed,
The method of claim 19, wherein the OLED display layer and the second detection circuit layer are enclosed in a space formed by the upper substrate, the lower substrate, and the sealing adhesive layer. . The upper substrate is between the first and second sensing circuit layers;
The upper substrate is
A first surface;
A second surface,
The method for manufacturing a touch display device according to claim 14, wherein the first detection circuit layer is provided on the second surface, and the second detection circuit layer is provided on the first surface. The method of forming the OLED display layer includes:
An active element group is disposed on the lower substrate;
The method of manufacturing a touch display device according to claim 14, wherein an organic light emitting layer including a counter electrode, a pixel electrode, and an intermediate layer is disposed on the active element group.

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