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WO2019100183A1 - Touch control integrated display panel and preparation method therefor - Google Patents

Touch control integrated display panel and preparation method therefor Download PDF

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Publication number
WO2019100183A1
WO2019100183A1 PCT/CN2017/111992 CN2017111992W WO2019100183A1 WO 2019100183 A1 WO2019100183 A1 WO 2019100183A1 CN 2017111992 W CN2017111992 W CN 2017111992W WO 2019100183 A1 WO2019100183 A1 WO 2019100183A1
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WO
WIPO (PCT)
Prior art keywords
touch
layer
conductive layer
opening
conductive
Prior art date
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Ceased
Application number
PCT/CN2017/111992
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French (fr)
Chinese (zh)
Inventor
袁泽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Royole Technologies Co Ltd
Original Assignee
Shenzhen Royole Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to PCT/CN2017/111992 priority Critical patent/WO2019100183A1/en
Priority to CN201780095821.XA priority patent/CN111201606A/en
Publication of WO2019100183A1 publication Critical patent/WO2019100183A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80Constructional details
    • H10K59/87Passivation; Containers; Encapsulations
    • H10K59/873Encapsulations

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a touch integrated display panel and a method for fabricating the same.
  • touch integration can be realized by integrating an additional conductive film layer on the package film layer.
  • OLED Organic Light-Emitting Diode
  • the existing technical solutions depend on traditional deposition, yellow light processing, etching, etc., including various plasma processes and wet processes. The process steps are too complicated and risky damage to the substrate or device, that is, It is said that in the case where the display panel is completed, an overly complicated process may result in a significant loss of yield.
  • the embodiment of the invention discloses a touch integrated display panel with simple process and a preparation method thereof.
  • a method for preparing a touch integrated display panel includes the steps of: providing an organic light emitting diode panel (OLED), including an illuminant and a thin film encapsulation layer; forming a first touch on the thin film encapsulation layer by a printing technique a conductive layer, and patterning the first touch conductive layer; and forming a first insulating layer on the first touch conductive layer to obtain a touch integrated display panel.
  • OLED organic light emitting diode panel
  • a touch integrated display panel includes: an organic light emitting diode panel including an illuminant and a thin film encapsulation layer; and a patterned first touch conductive layer formed on the thin film encapsulation layer by a printing technique,
  • a material of the touch conductive layer is a material containing at least one conductive particle; and a first insulating layer is formed on the first touch conductive layer.
  • the touch integrated display panel and the preparation method of the invention form a touch conductive layer by using a printing technology, and do not need to adopt a conventional plasma processing and etching process, thereby maximally avoiding temperature, pressure, etc. on the OLED display panel and internal devices.
  • the damage helps to improve the process yield.
  • FIG. 1 is a schematic flow chart of a method for fabricating a touch integrated display panel including a conductive layer according to an embodiment of the invention.
  • FIG. 2 is a schematic flow chart of a method for preparing a touch integrated display panel including two conductive layers according to an embodiment of the invention.
  • FIG. 3a-3f are schematic views of a method for fabricating a touch integrated display panel according to a first embodiment of the present invention
  • FIG. 3a is a top view of an OLED mother board
  • FIG. 3b is a cross section of the OLED mother board of 3a along III-III.
  • FIG. 3c is a cross-sectional view showing the first touch conductive layer formed on the OLED
  • FIG. 3d is a cross-sectional view showing the first insulating layer formed on the first touch conductive layer
  • FIG. 3e is the first in the OLED and
  • FIG. 3f is a top view of the plurality of touch integrated display panels.
  • FIG. 4a-4h are schematic diagrams showing a method of fabricating a touch integrated display panel according to a second embodiment of the present invention.
  • FIG. 4a is a top view of an OLED mother board; and
  • FIG. 4b is a cross section of the OLED mother board of 4a along IV-IV.
  • FIG. 4c is a cross-sectional view showing the first touch conductive layer formed on the OLED;
  • FIG. 4d is a cross-sectional view showing the first insulating layer formed on the first touch conductive layer;
  • FIG. 4e is a first insulating layer;
  • FIG. 4f is a schematic cross-sectional view showing a second insulating layer formed on the second touch conductive layer;
  • FIG. 4g is a schematic view showing formation of conductive silver on the OLED and the first touch conductive layer;
  • FIG. 4h is a schematic plan view showing a plurality of touch integrated display panels.
  • 5a-5b are cross-sectional and top plan views of a touch integrated display panel according to another embodiment of the present invention.
  • FIG. 6 is a top plan view of a touch integrated display panel according to still another embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a method for fabricating a touch integrated display panel according to a technical solution of the present invention.
  • a method 100 for preparing a touch integrated display panel includes the steps of:
  • OLED organic light emitting diode
  • TFE Thin Film Encapsulation
  • the illuminant may include a base substrate, a plurality of thin film transistors formed on the base substrate, and a plurality of organic light emitting diode illuminating elements electrically connected to the plurality of thin film transistors.
  • the printing technique may be Ink-Jet Printing (IJP) or letterpress printing technology, etc., preferably, the first touch conductive layer is formed by an inkjet printing technique.
  • IJP Ink-Jet Printing
  • letterpress printing technology etc.
  • the first touch conductive layer is formed by an inkjet printing technique.
  • the touch conductive layer can be formed by a printing technique, and then the touch conductive layer can be patterned by laser ablation or the like to obtain a patterned first touch conductive layer; or directly formed by a printing technique.
  • the patterned first touch conductive layer can be formed by a printing technique, and then the touch conductive layer can be patterned by laser ablation or the like to obtain a patterned first touch conductive layer; or directly formed by a printing technique.
  • the patterned first touch conductive layer can be formed by a printing technique, and then the touch conductive layer can be patterned by laser ablation or the like to obtain a patterned first touch conductive layer; or directly formed by a printing technique.
  • the material of the first touch conductive layer may be a material containing conductive particles, and preferably may be a material containing conductive particles such as nano conductive particles, metallic silver/copper nanowires, and graphene.
  • the first insulating layer may be formed by a conventional method, or may be formed by a printing technique, that is, by an inkjet printing technique or a letterpress printing technique or the like.
  • the first insulating layer may be made of a resin material of a material.
  • a first opening may be formed on the first insulating layer to expose a portion of the first touch conductive layer.
  • the first opening may be directly formed when the first insulating layer is formed, that is, the first insulating layer having the first opening may be directly formed by a printing technique or the like, or may be integrated After the first insulating layer, the first opening is formed by a technique such as laser ablation.
  • the first touch conductive layer exposed from the first opening is used to electrically connect other devices.
  • the OLED panel may be divided into a display area and a non-display area located at an edge of the display area, and the first opening is located in the non-display area.
  • the method may further include the steps of:
  • the conductive silver paste layer is formed on a surface of the thin film encapsulation layer.
  • the conductive silver paste layer is located in the non-display area, and is electrically connected to the first touch conductive layer exposed from the first opening.
  • the conductive silver adhesive layer is used for bonding and electrically connecting the touch integrated display panel to other devices, such as for bonding the touch integrated display panel to a flexible circuit board and electrically connection.
  • the conductive silver paste layer can also be formed by using printing technology, such as IJP technology, letterpress printing technology and screen printing technology.
  • the OLED panel may be a mother board, that is, a plurality of OLED sub-units, each of which can independently perform the display function of the OLED; the plurality of OLED sub-units are fabricated on one motherboard, and Forming the touch conductive layer, the insulating layer and the conductive silver adhesive layer on the mother board can save process and reduce cost; in this case, forming the first insulating layer or forming the conductive silver adhesive layer After that, it also includes the steps:
  • the OLED panel is divided into a plurality of sub-boards to obtain a plurality of touch integrated display panels, wherein each touch integrated display panel includes an OLED sub-unit.
  • a multi-layer touch conductive layer can also be designed on the TFE.
  • FIG. 2 is a schematic diagram of a method for fabricating a touch integrated display panel having two layers of touch conductive layers according to the technical solution of the present invention.
  • a method for preparing a touch integrated display panel 200 includes the steps of:
  • OLED organic light emitting diode
  • the printing technology can be inkjet printing technology or letterpress printing technology.
  • the first and second touch conductive layers are formed by an inkjet printing technique.
  • An integrated touch conductive layer can be formed by a printing technique, and then the touch conductive layer is patterned by laser ablation or the like to obtain a patterned touch conductive layer; the pattern can also be directly formed by a printing technique.
  • the first and second touch conductive layers can be formed by a printing technique, and then the touch conductive layer is patterned by laser ablation or the like to obtain a patterned touch conductive layer; the pattern can also be directly formed by a printing technique.
  • the material of the first touch conductive layer and the second touch conductive layer may be a material containing conductive particles, and preferably may be conductive particles including nano conductive particles, metallic silver/copper nanowires, graphene, and the like. material.
  • the materials of the first touch conductive layer and the second touch conductive layer may be the same or different, and are performed according to design requirements.
  • the first insulating layer and the second insulating layer may be formed by a conventional method, or may be formed by a printing technique such as an inkjet printing technique or a letterpress printing technique.
  • the first and second insulating layers may each be made of a resin material of a material.
  • the materials of the first insulating layer and the second insulating layer may be the same or different.
  • a first opening may be formed on the first insulating layer to expose a portion of the first touch conductive layer.
  • the first opening may be directly formed when the first insulating layer is formed, that is, the first insulating layer having the first opening may be directly formed by a printing technique or the like, or after the integrated first insulating layer is formed,
  • the first opening is formed by a technique such as laser ablation.
  • the first touch conductive layer exposed from the first opening is used to electrically connect other devices.
  • a second opening may be formed on the second insulating layer to expose a portion of the second touch conductive layer.
  • the second opening may be directly formed when the second insulating layer is formed, that is, the second insulating layer having the second opening may be directly formed by a printing technique or the like, or may be integrated After the second insulating layer, the second opening is formed by a technique such as laser ablation.
  • the second touch conductive layer exposed from the second opening is used to electrically connect other devices.
  • the OLED may be divided into a display area and a non-display area located at an edge of the display area, and the first opening and the second opening may both be located in the non-display area.
  • the method may further include the steps of:
  • the conductive silver paste layer is formed in the non-display area.
  • the conductive silver paste layer may be electrically connected to the second touch conductive layer exposed to the second opening, or may be electrically connected to the first touch conductive layer exposed to the first opening.
  • the conductive silver paste layer is further divided into two spaced portions, and the two portions of the conductive silver paste layer are respectively exposed to the first touch conductive layer exposed to the first opening and The second touch conductive layer exposed to the second opening is electrically connected.
  • the conductive silver paste layer may be formed on the surface of the first insulating layer in the non-display area, or may be directly formed on the surface of the thin film encapsulation layer in the non-display area.
  • the conductive silver paste layer can also be formed by using printing techniques such as inkjet printing technology, letterpress printing technology, and screen printing technology.
  • the steps S203 and S204 may be repeated.
  • the OLED panel may be a mother board, that is, a plurality of OLED sub-units.
  • the motherboard is divided into a plurality of sub-boards to obtain a plurality of touch integrated display panels, wherein each touch integrated display panel includes an OLED sub-unit.
  • the first embodiment of the present technical solution provides a touch integrated display panel 3 and a preparation method thereof.
  • an organic light emitting diode (OLED) panel 30 is provided.
  • the OLED panel 30 includes an illuminant 31 and a thin film encapsulation layer 32.
  • the OLED panel 30 is a motherboard, and includes a plurality of OLED sub-units 301. Each of the OLED sub-units 301 is divided into a display area 302 and a non-display area 303. The non-display area 303 is located at an edge of the display area 302.
  • a patterned first touch conductive layer 33 is formed on the thin film encapsulation layer 32 by a printing technique.
  • a first insulating layer 34 is formed on the first touch conductive layer 33 to obtain a touch integrated display panel 3.
  • the first insulating layer 34 covers the first touch conductive layer 33 and fills the pattern gap of the first touch conductive layer 33.
  • a first opening 341 is formed on the first insulating layer 34. A portion of the first touch conductive layer 33 is exposed from the first opening 341. The first opening 341 is located in the non-display area 303.
  • a conductive silver paste layer 35 is formed on the thin film encapsulation layer 32.
  • the conductive silver paste layer 35 is electrically connected to the first touch conductive layer 33 exposed from the first opening 341.
  • the conductive silver paste layer is formed on the non-display area 303.
  • the motherboard is divided into a plurality of sub-boards along the boundary of the OLED sub-unit 301 to obtain a plurality of touch integrated display panels 3.
  • the touch integrated display panel 3 includes an illuminant 31; a thin film encapsulation layer 32 formed on the illuminant 31; and a patterned first formed on the thin film encapsulation layer 32 by a printing technique.
  • a first conductive layer 34 covering the pattern gap of the first touch conductive layer 33 and a first opening formed on the first insulating layer 34 341. The portion of the first touch conductive layer 33 is exposed from the first opening 341; and the conductive silver paste layer 35 is formed on the thin film encapsulation layer 32.
  • the touch integrated display panel 3 is divided into a display area 302 and a non-display area 303 located at an edge of the display area 302.
  • the first opening 341 is located in the non-display area 303, and the conductive silver glue layer 35 is also formed in the non-display area 303, and the conductive silver glue layer 35 is electrically connected to the first touch conductive layer 33 exposed from the first opening 341.
  • the first insulating layer 34 is made of a resin material.
  • the first touch conductive layer 33, the first insulating layer 34 and the conductive silver paste layer 35 are all formed by a printing technique; more preferably, the first touch conductive layer 33, the The first insulating layer 34 and the conductive silver paste layer 35 are each formed by an inkjet printing technique.
  • the material of the first touch conductive layer may be a material containing conductive particles, and preferably may be a material containing conductive particles such as nano conductive particles, metallic silver/copper nanowires, and graphene.
  • the second embodiment of the present technical solution provides a touch integrated display panel 4 and a preparation method thereof.
  • an organic light emitting diode (OLED) panel 40 is provided.
  • the OLED panel 40 includes an illuminant 41 and a thin film encapsulation layer 42.
  • the OLED panel 40 is a motherboard, and includes a plurality of OLED sub-units 401. Each of the OLED sub-units 401 is divided into a display area 402 and a non-display area 403. The non-display area 403 is located at an edge of the display area 402.
  • a patterned first touch conductive layer 43 is formed on the thin film encapsulation layer 42 by a printing technique.
  • a first insulating layer 44 is formed on the first touch conductive layer 43.
  • the first insulating layer 44 covers a portion of the first touch conductive layer 43 and fills the first touch.
  • the pattern gap of the conductive layer 43 is controlled.
  • the first insulating layer 44 is further formed with at least one first opening 441, and the at least one first opening 441 exposes a portion of the first touch conductive layer 43.
  • the first opening 441 is located in the non-display area 403.
  • a patterned second touch conductive layer 46 is formed on the first insulating layer 44 by a printing technique
  • a second insulating layer 47 is formed on the second touch conductive layer 46.
  • the second insulating layer 47 is further formed with at least one second opening 471, and the at least one second opening 471 exposes a portion of the second touch conductive layer 46.
  • the second opening 471 is also located in the non-display area 403 and is different in position from the first opening 441.
  • a conductive silver paste layer 45 is formed on the thin film encapsulation layer 42.
  • the conductive silver paste layer 45 is located in the non-display area 403 and is electrically connected to the first touch conductive layer 43 exposed in the first opening 441.
  • the motherboard is divided into sub-boards to obtain a plurality of touch integrated display panels 4.
  • the touch integrated display panel 4 includes an illuminant 41; a thin film encapsulation layer 42 formed on the illuminant 41; and a patterned first touch conductive layer 43 formed on the thin film encapsulation layer 42 by a printing technique;
  • the first touch conductive layer 43 fills the first insulating layer 44 of the pattern gap of the first touch conductive layer 43 .
  • the first insulating layer 44 is formed with at least one first opening 441.
  • the first touch conductive layer 43 is exposed from the first opening 441; the second touch conductive layer 46 is formed on the first insulating layer 44 by a printing technique; and is formed on the second touch conductive layer.
  • a second insulating layer 47 on the second insulating layer 47 is formed with at least one second opening 471, and a portion of the second touch conductive layer 46 is exposed from the second opening 471;
  • the touch integrated display panel 4 is divided into a display area 402 and a non-display area 403.
  • the first and second openings 441 and 471 are located in the non-display area 403, and the conductive silver glue layer 45 is also
  • the conductive silver paste layer 45 is in contact with the first touch conductive layer 43 exposed in the first opening 441 to be electrically connected.
  • the first touch conductive layer 43 is electrically connected to an electronic device (not shown) through the conductive silver paste layer 45; the second touch conductive layer 46 passes through other conductive media, such as The anisotropic conductive paste, gold wire or solder paste is electrically connected to another electronic device (not shown).
  • the first and second insulating layers 44, 47 are made of a resin material.
  • the first and second touch conductive layers 43, 46, the first and second insulating layers 44, 47 and the conductive silver paste layer 45 are all formed by a printing technique; more preferably, the The first and second touch conductive layers 43, 46, the first and second insulating layers 44, 47 and the conductive silver paste layer 45 are all formed by an inkjet printing technique.
  • the materials of the first touch conductive layer 43 and the second touch conductive layer 46 may be the same or different, and the materials 47 of the first insulating layer 44 and the second insulating layer may be the same or different.
  • the material of the first touch conductive layer 43 and the second touch conductive layer 46 may be a material containing conductive particles, and preferably may be conductive materials including nano conductive particles, metallic silver/copper nanowires, graphene, and the like. The material of the particles.
  • the conductive silver paste layer 45 may also be electrically connected to the second touch conductive layer 46 exposed in the second opening 471.
  • the conductive silver paste layer 45 may further include a first portion 451 and the first portion 451 and the first portion exposed to the first opening 441
  • a touch conductive layer 43 is connected to be electrically connected, and the second portion 452 is electrically connected to the second touch conductive layer 46 exposed in the second opening 471.
  • the first touch conductive layer 43 and the second touch conductive layer 46 may be electrically connected to the same or different electronic devices (not shown).
  • the conductive silver paste layer may not be formed, and the first and second touch conductive layers 43 and 46 pass through other conductive media, such as an anisotropic conductive paste, a gold wire or a solder paste. , electrically connected to the electronic device.
  • the printing technology is used to form the touch conductive layer, which does not require traditional plasma processing and etching processes, and can avoid damage to the OLED display panel and internal components by temperature and pressure to the greatest extent, and helps to improve the process yield. .
  • the yellow light process and the etching process are not required, and the patterning of the touch conductive layer can be realized in one step, thereby saving the process and saving the cost.
  • the insulating layer and the conductive silver glue layer can also be formed by printing, so that the flatness of the formed touch integrated display panel is better, thereby facilitating the assembly of the touch integrated display panel and other devices, and improving the assembly quality. .
  • the touch integrated display panel can be formed on the motherboard and then divided, which can save process and cost; and, printing can be performed in a fixed area of the motherboard, and printing interference is less.
  • Printing technology can be compatible with a variety of conductive materials, so that the process can be selected in a wide range, according to the process and product needs, select the appropriate conductive materials for printing.
  • a multi-layer touch conductive layer can be printed and printed, and the design flexibility is high; and the conductive layer in the hole for interlayer connection can be formed simultaneously with the touch conductive layer for the build-up layer, the process It's simpler.

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Abstract

A method for preparing a touch control integrated display panel. The method comprises: providing an organic light-emitting diode panel (OLED), comprising an illuminant and a thin film encapsulation layer (S101); forming a first touch control conductive layer on the thin film encapsulation layer by means of printing technology, and patterning the first touch control conductive layer (S102); and forming a first insulating layer on the first touch control conductive layer (S103), so as to obtain a touch control integrated display panel. A touch control integrated display panel and a preparation method therefor have the advantages of a simple process and a good yield.

Description

触控集成显示面板及制备方法Touch integrated display panel and preparation method 技术领域Technical field

本发明涉及显示技术领域,尤其涉及一种触控集成显示面板及制备方法。The present invention relates to the field of display technologies, and in particular, to a touch integrated display panel and a method for fabricating the same.

背景技术Background technique

在各种柔性或非柔性显示面板中,将触控功能集成在显示面板是技术的趋势。以有机发光二极体(Organic Light-Emitting Diode,OLED)面板显示为例,在封装膜层上,通过集成额外的导电膜层,可实现触控集成。现有的技术方案,工艺依赖于传统的沉积、黄光制程以及刻蚀等等,其中包括各种等离子制程以及湿法工艺,工艺步骤多过于复杂,有风险导致基板或器件的损伤,也就是说,在显示面板完成的情况下,进行过于复杂的工艺,可能导致良率的重大损失。In various flexible or non-flexible display panels, integrating touch functions into display panels is a technology trend. Taking an Organic Light-Emitting Diode (OLED) panel display as an example, touch integration can be realized by integrating an additional conductive film layer on the package film layer. The existing technical solutions depend on traditional deposition, yellow light processing, etching, etc., including various plasma processes and wet processes. The process steps are too complicated and risky damage to the substrate or device, that is, It is said that in the case where the display panel is completed, an overly complicated process may result in a significant loss of yield.

发明内容Summary of the invention

本发明实施例公开一种工艺较为简单的触控集成显示面板及制备方法。The embodiment of the invention discloses a touch integrated display panel with simple process and a preparation method thereof.

一种触控集成显示面板的制备方法,包括步骤:提供一有机发光二极体面板(OLED),包括发光体及薄膜封装层;通过打印技术在所述薄膜封装层上形成一第一触控导电层,并将所述第一触控导电层图案化;以及在所述第一触控导电层上形成一第一绝缘层,得到一触控集成显示面板。A method for preparing a touch integrated display panel includes the steps of: providing an organic light emitting diode panel (OLED), including an illuminant and a thin film encapsulation layer; forming a first touch on the thin film encapsulation layer by a printing technique a conductive layer, and patterning the first touch conductive layer; and forming a first insulating layer on the first touch conductive layer to obtain a touch integrated display panel.

一种触控集成显示面板,包括:有机发光二极体面板,包括发光体及薄膜封装层;图案化的第一触控导电层,通过打印技术形成于所述薄膜封装层上,所述第一触控导电层的材质为包含至少一种导电颗粒的材料;以及第一绝缘层,形成于所述第一触控导电层上。A touch integrated display panel includes: an organic light emitting diode panel including an illuminant and a thin film encapsulation layer; and a patterned first touch conductive layer formed on the thin film encapsulation layer by a printing technique, A material of the touch conductive layer is a material containing at least one conductive particle; and a first insulating layer is formed on the first touch conductive layer.

本发明的触控集成显示面板及制备方法,采用打印技术形成触控导电层,不需要采用传统的等离子处理以及刻蚀等制程,可最大程度的避免温度、压力等对OLED显示面板及内部器件的损伤,有助于提升制程良率。 The touch integrated display panel and the preparation method of the invention form a touch conductive layer by using a printing technology, and do not need to adopt a conventional plasma processing and etching process, thereby maximally avoiding temperature, pressure, etc. on the OLED display panel and internal devices. The damage helps to improve the process yield.

附图说明DRAWINGS

为了更清楚地说明本发明实施例中的技术方案,下面将对实施例中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。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.

图1是本发明实施例的包含一层导电层的触控集成显示面板的制备方法的流程示意图。FIG. 1 is a schematic flow chart of a method for fabricating a touch integrated display panel including a conductive layer according to an embodiment of the invention.

图2是本发明实施例的包含两层导电层的触控集成显示面板的制备方法的流程示意图。2 is a schematic flow chart of a method for preparing a touch integrated display panel including two conductive layers according to an embodiment of the invention.

图3a-3f是本发明第一实施例的触控集成显示面板的制备方法的示意图;其中,图3a为一OLED母板的俯视示意图;图3b为3a的OLED母板沿III-III的剖视示意图;图3c为在OLED上形成第一触控导电层的剖视示意图;图3d为在第一触控导电层上形成第一绝缘层的剖视示意图;图3e为在OLED及第一触控导电层上形成导电银胶层的剖视示意图;图3f为分割形成多个触控集成显示面板的俯视示意图。3a-3f are schematic views of a method for fabricating a touch integrated display panel according to a first embodiment of the present invention; wherein, FIG. 3a is a top view of an OLED mother board; FIG. 3b is a cross section of the OLED mother board of 3a along III-III. FIG. 3c is a cross-sectional view showing the first touch conductive layer formed on the OLED; FIG. 3d is a cross-sectional view showing the first insulating layer formed on the first touch conductive layer; FIG. 3e is the first in the OLED and FIG. A schematic cross-sectional view of a conductive silver paste layer formed on the touch conductive layer; FIG. 3f is a top view of the plurality of touch integrated display panels.

图4a-4h是本发明第二实施例的触控集成显示面板的制备方法的示意图;其中,图4a为一OLED母板的俯视示意图;图4b为4a的OLED母板沿IV-IV的剖视示意图;图4c为在OLED上形成第一触控导电层的剖视示意图;图4d为在第一触控导电层上形成第一绝缘层的剖视示意图;图4e为在第一绝缘层上形成第二触控导电层的剖视示意图;图4f为在第二触控导电层上形成第二绝缘层的剖视示意图;图4g为在OLED及第一触控导电层上形成导电银胶层的剖视示意图;图4h为分割形成多个触控集成显示面板的俯视示意图。4a-4h are schematic diagrams showing a method of fabricating a touch integrated display panel according to a second embodiment of the present invention; wherein, FIG. 4a is a top view of an OLED mother board; and FIG. 4b is a cross section of the OLED mother board of 4a along IV-IV. FIG. 4c is a cross-sectional view showing the first touch conductive layer formed on the OLED; FIG. 4d is a cross-sectional view showing the first insulating layer formed on the first touch conductive layer; FIG. 4e is a first insulating layer; FIG. 4f is a schematic cross-sectional view showing a second insulating layer formed on the second touch conductive layer; FIG. 4g is a schematic view showing formation of conductive silver on the OLED and the first touch conductive layer; FIG. 4h is a schematic plan view showing a plurality of touch integrated display panels.

图5a-5b是本发明另一实施例的触控集成显示面板的剖视及俯视示意图。5a-5b are cross-sectional and top plan views of a touch integrated display panel according to another embodiment of the present invention.

图6是本发明又一实施例的触控集成显示面板的俯视示意图。FIG. 6 is a top plan view of a touch integrated display panel according to still another embodiment of the present invention.

具体实施方式 Detailed ways

下面将结合本发明技术方案实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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, but 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.

请参考图1,图1是本发明技术方案的触控集成显示面板的制备方法的示意图。Please refer to FIG. 1. FIG. 1 is a schematic diagram of a method for fabricating a touch integrated display panel according to a technical solution of the present invention.

一种触控集成显示面板的制备方法100,包括步骤:A method 100 for preparing a touch integrated display panel includes the steps of:

S101,提供一有机发光二极体(OLED)面板,所述OLED面板包括发光体及薄膜封装层(Thin Film Encapsulation,TFE)。S101. An organic light emitting diode (OLED) panel is provided. The OLED panel includes an illuminant and a Thin Film Encapsulation (TFE).

S102,通过打印技术在所述薄膜封装层上形成一第一触控导电层,并将所述第一触控导电层图案化。S102. Form a first touch conductive layer on the thin film encapsulation layer by a printing technique, and pattern the first touch conductive layer.

S103,在所述第一触控导电层上形成一第一绝缘层,得到一触控集成显示面板。S103, forming a first insulating layer on the first touch conductive layer to obtain a touch integrated display panel.

其中,所述发光体可以包括衬底基板、形成在所述衬底基板上的多个薄膜晶体管以及与所述多个薄膜晶体管电连接的多个有机发光二极管发光元件。Wherein, the illuminant may include a base substrate, a plurality of thin film transistors formed on the base substrate, and a plurality of organic light emitting diode illuminating elements electrically connected to the plurality of thin film transistors.

打印技术可以为喷墨打印技术(Ink-Jet Printing,IJP)或凸版印刷技术等,优选地,通过喷墨打印技术形成所述第一触控导电层。The printing technique may be Ink-Jet Printing (IJP) or letterpress printing technology, etc., preferably, the first touch conductive layer is formed by an inkjet printing technique.

可以通过打印技术形成一体的触控导电层,之后通过激光烧蚀等方式对所述触控导电层进行图案化,从而得到图案化的第一触控导电层;也可以直接通过打印技术形成所述图案化的第一触控导电层。The touch conductive layer can be formed by a printing technique, and then the touch conductive layer can be patterned by laser ablation or the like to obtain a patterned first touch conductive layer; or directly formed by a printing technique. The patterned first touch conductive layer.

所述第一触控导电层的材质可以为包含导电性颗粒的材料,优选地,可以为包含纳米导电粒子、金属银/铜纳米线、石墨烯等导电性颗粒的材料。The material of the first touch conductive layer may be a material containing conductive particles, and preferably may be a material containing conductive particles such as nano conductive particles, metallic silver/copper nanowires, and graphene.

所述第一绝缘层可以通过传统方式形成,也可以通过打印技术形成,即通过喷墨打印技术或凸版印刷技术等形成。所述第一绝缘层可以为材质的树脂材料制成。所述第一绝缘层上还可以形成有第一开口,以暴露出部分所述第一触控导电层。所述第一开口可以在所述第一绝缘层形成的时候直接形成,即,可以通过打印技术等直接形成具有第一开口的第一绝缘层,也可以在形成一体的 第一绝缘层之后,通过激光烧蚀等技术形成所述第一开口。自所述第一开口中暴露出的所述第一触控导电层用于电连接其他器件。其中,所述OLED面板上可以划分有显示区及位于所述显示区边缘的非显示区,所述第一开口位于所述非显示区。The first insulating layer may be formed by a conventional method, or may be formed by a printing technique, that is, by an inkjet printing technique or a letterpress printing technique or the like. The first insulating layer may be made of a resin material of a material. A first opening may be formed on the first insulating layer to expose a portion of the first touch conductive layer. The first opening may be directly formed when the first insulating layer is formed, that is, the first insulating layer having the first opening may be directly formed by a printing technique or the like, or may be integrated After the first insulating layer, the first opening is formed by a technique such as laser ablation. The first touch conductive layer exposed from the first opening is used to electrically connect other devices. The OLED panel may be divided into a display area and a non-display area located at an edge of the display area, and the first opening is located in the non-display area.

在形成所述第一绝缘层后,还可以包括步骤:After forming the first insulating layer, the method may further include the steps of:

S104,形成一导电银胶层。S104, forming a conductive silver paste layer.

所述导电银胶层形成于所述薄膜封装层表面。The conductive silver paste layer is formed on a surface of the thin film encapsulation layer.

所述导电银胶层位于所述非显示区,且与自所述第一开口中暴露出的所述第一触控导电层相接从而相电连接。所述导电银胶层用于将所述触控集成显示面板与其他器件相粘结且相电连接,如可以用于将所述触控集成显示面板与一柔性电路板相粘结且相电连接。The conductive silver paste layer is located in the non-display area, and is electrically connected to the first touch conductive layer exposed from the first opening. The conductive silver adhesive layer is used for bonding and electrically connecting the touch integrated display panel to other devices, such as for bonding the touch integrated display panel to a flexible circuit board and electrically connection.

所述导电银胶层也可以利用打印技术形成,如IJP技术、凸版印刷技术及网印技术等。The conductive silver paste layer can also be formed by using printing technology, such as IJP technology, letterpress printing technology and screen printing technology.

其中,所述OLED面板可以为一母板,即包含多个OLED子单元,每个OLED子单元均能独立完成OLED的显示功能;将多个OLED子单元在一个母板上制作,以及在所述母板上制作形成所述触控导电层、绝缘层及导电银胶层,可以节省流程、降低成本;此种情况下,在形成所述第一绝缘层或在形成所述导电银胶层之后,还包括步骤:The OLED panel may be a mother board, that is, a plurality of OLED sub-units, each of which can independently perform the display function of the OLED; the plurality of OLED sub-units are fabricated on one motherboard, and Forming the touch conductive layer, the insulating layer and the conductive silver adhesive layer on the mother board can save process and reduce cost; in this case, forming the first insulating layer or forming the conductive silver adhesive layer After that, it also includes the steps:

S105,将所述OLED面板分割为多个子板,得到多个触控集成显示面板,其中,每个触控集成显示面板包括一个OLED子单元。S105. The OLED panel is divided into a plurality of sub-boards to obtain a plurality of touch integrated display panels, wherein each touch integrated display panel includes an OLED sub-unit.

为了实现更多的触控设计,还可以在所述TFE上设计多层触控导电层。In order to achieve more touch design, a multi-layer touch conductive layer can also be designed on the TFE.

请参阅图2,图2是本发明技术方案的具有两层触控导电层的触控集成显示面板的制备方法的示意图。Please refer to FIG. 2. FIG. 2 is a schematic diagram of a method for fabricating a touch integrated display panel having two layers of touch conductive layers according to the technical solution of the present invention.

一种触控集成显示面板的制备方法200,包括步骤:A method for preparing a touch integrated display panel 200 includes the steps of:

S201,提供一有机发光二极体(OLED)面板,所述OLED面板包括发光体及薄膜封装层;S201, providing an organic light emitting diode (OLED) panel, the OLED panel comprising an illuminant and a thin film encapsulation layer;

S202,通过打印技术在所述薄膜封装层上形成一第一触控导电层,并将所 述第一触控导电层图案化;S202, forming a first touch conductive layer on the thin film encapsulation layer by using a printing technology, and Patterning the first touch conductive layer;

S203,在所述第一触控导电层上形成一第一绝缘层;S203, forming a first insulating layer on the first touch conductive layer;

S204,通过打印技术在所述第一绝缘层上形成一第二触控导电层,及将所述第二触控导电层图案化;S204, forming a second touch conductive layer on the first insulating layer by a printing technique, and patterning the second touch conductive layer;

S205,在所述第二触控导电层上形成一第二绝缘层,得到一触控集成显示面板。S205, forming a second insulating layer on the second touch conductive layer to obtain a touch integrated display panel.

其中,打印技术可以为喷墨打印技术或凸版印刷技术等。优选地,通过喷墨打印技术形成所述第一、第二触控导电层。Among them, the printing technology can be inkjet printing technology or letterpress printing technology. Preferably, the first and second touch conductive layers are formed by an inkjet printing technique.

可以通过打印技术形成一体的触控导电层,之后通过激光烧蚀等方式对所述触控导电层进行图案化,从而得到图案化的触控导电层;也可以直接通过打印技术形成所述图案化的第一、第二触控导电层。An integrated touch conductive layer can be formed by a printing technique, and then the touch conductive layer is patterned by laser ablation or the like to obtain a patterned touch conductive layer; the pattern can also be directly formed by a printing technique. The first and second touch conductive layers.

所述第一触控导电层、第二触控导电层的材质可以为包含导电性颗粒的材料,优选地,可以为包含纳米导电粒子、金属银/铜纳米线、石墨烯等导电性颗粒的材料。所述第一触控导电层与所述第二触控导电层的材质可以相同也可以不同,依设计需要进行。The material of the first touch conductive layer and the second touch conductive layer may be a material containing conductive particles, and preferably may be conductive particles including nano conductive particles, metallic silver/copper nanowires, graphene, and the like. material. The materials of the first touch conductive layer and the second touch conductive layer may be the same or different, and are performed according to design requirements.

所述第一绝缘层及第二绝缘层可以通过传统方式形成,也可以通过打印技术形成,如通过喷墨打印技术或凸版印刷技术等。所述第一、第二绝缘层均可以为材质的树脂材料制成。所述第一绝缘层及第二绝缘层的材质可以相同也可以不同。The first insulating layer and the second insulating layer may be formed by a conventional method, or may be formed by a printing technique such as an inkjet printing technique or a letterpress printing technique. The first and second insulating layers may each be made of a resin material of a material. The materials of the first insulating layer and the second insulating layer may be the same or different.

所述第一绝缘层上还可以形成有第一开口,以暴露出部分所述第一触控导电层。所述第一开口可以在所述第一绝缘层形成的时候直接形成,即,可以通过打印技术等直接形成具有第一开口的第一绝缘层,也可以在形成一体的第一绝缘层之后,通过激光烧蚀等技术形成所述第一开口。自所述第一开口中暴露出的所述第一触控导电层用于电连接其他器件。A first opening may be formed on the first insulating layer to expose a portion of the first touch conductive layer. The first opening may be directly formed when the first insulating layer is formed, that is, the first insulating layer having the first opening may be directly formed by a printing technique or the like, or after the integrated first insulating layer is formed, The first opening is formed by a technique such as laser ablation. The first touch conductive layer exposed from the first opening is used to electrically connect other devices.

所述第二绝缘层上还可以形成有一第二开口,以暴露出部分所述第二触控导电层。所述第二开口可以在所述第二绝缘层形成的时候直接形成,即,可以通过打印技术等直接形成具有第二开口的第二绝缘层,也可以在形成一体的第 二绝缘层之后,通过激光烧蚀等技术形成所述第二开口。自所述第二开口中暴露出的所述第二触控导电层用于电连接其他器件。A second opening may be formed on the second insulating layer to expose a portion of the second touch conductive layer. The second opening may be directly formed when the second insulating layer is formed, that is, the second insulating layer having the second opening may be directly formed by a printing technique or the like, or may be integrated After the second insulating layer, the second opening is formed by a technique such as laser ablation. The second touch conductive layer exposed from the second opening is used to electrically connect other devices.

所述OLED上可以划分有显示区及位于所述显示区边缘的非显示区,所述第一开口及所述第二开口均可以位于所述非显示区。The OLED may be divided into a display area and a non-display area located at an edge of the display area, and the first opening and the second opening may both be located in the non-display area.

在形成所述第一绝缘层后,还可以包括步骤:After forming the first insulating layer, the method may further include the steps of:

S206,形成一导电银胶层。S206, forming a conductive silver paste layer.

所述导电银胶层形成于所述非显示区。所述导电银胶层可以与暴露于所述第二开口的所述第二触控导电层相接从而相电连接,也可以与暴露于所述第一开口的所述第一触控导电层相接从而相电连接,所述导电银胶层还可以分为相间隔的两部分,两部分所述导电银胶层分别与暴露于所述第一开口的所述第一触控导电层及暴露于所述第二开口的所述第二触控导电层相电连接。The conductive silver paste layer is formed in the non-display area. The conductive silver paste layer may be electrically connected to the second touch conductive layer exposed to the second opening, or may be electrically connected to the first touch conductive layer exposed to the first opening. The conductive silver paste layer is further divided into two spaced portions, and the two portions of the conductive silver paste layer are respectively exposed to the first touch conductive layer exposed to the first opening and The second touch conductive layer exposed to the second opening is electrically connected.

其中,所述导电银胶层可以形成于所述非显示区内的所述第一绝缘层的表面,也可以直接形成于所述非显示区内的的所述薄膜封装层的表面。The conductive silver paste layer may be formed on the surface of the first insulating layer in the non-display area, or may be directly formed on the surface of the thin film encapsulation layer in the non-display area.

所述导电银胶层也可以利用打印技术形成,如喷墨打印技术、凸版印刷技术及网印技术等。The conductive silver paste layer can also be formed by using printing techniques such as inkjet printing technology, letterpress printing technology, and screen printing technology.

需要形成两层以上的触控导电层时,重复进行S203及S204步即可。When it is necessary to form two or more touch conductive layers, the steps S203 and S204 may be repeated.

与前述类似,所述OLED面板可以为一母板,即包含多个OLED子单元,在形成所述第一绝缘层或在形成所述导电银胶层之后,还包括步骤:Similar to the foregoing, the OLED panel may be a mother board, that is, a plurality of OLED sub-units. After forming the first insulating layer or after forming the conductive silver paste layer, the method further includes the steps of:

S207,将所述母板分割为多个子板,得到多个触控集成显示面板,其中,每个触控集成显示面板包括一个OLED子单元。S207. The motherboard is divided into a plurality of sub-boards to obtain a plurality of touch integrated display panels, wherein each touch integrated display panel includes an OLED sub-unit.

以下以具体实施例来说明本案的触控集成显示面板及制备方法。The touch integrated display panel and the preparation method of the present invention are described below by using specific embodiments.

本技术方案第一实施例提供一种触控集成显示面板3及制备方法。The first embodiment of the present technical solution provides a touch integrated display panel 3 and a preparation method thereof.

请参阅图3a-3b,提供一有机发光二极体(OLED)面板30,所述OLED面板30包括发光体31及薄膜封装层32。Referring to FIGS. 3a-3b, an organic light emitting diode (OLED) panel 30 is provided. The OLED panel 30 includes an illuminant 31 and a thin film encapsulation layer 32.

所述OLED面板30为母板,包括有多个OLED子单元301,每个OLED子单元301上均划分有显示区302及非显示区303。所述非显示区303位于所述显示区302的边缘。 The OLED panel 30 is a motherboard, and includes a plurality of OLED sub-units 301. Each of the OLED sub-units 301 is divided into a display area 302 and a non-display area 303. The non-display area 303 is located at an edge of the display area 302.

请参阅图3c,通过打印技术在所述薄膜封装层32上形成一图案化的第一触控导电层33。Referring to FIG. 3c, a patterned first touch conductive layer 33 is formed on the thin film encapsulation layer 32 by a printing technique.

请参阅图3d,在所述第一触控导电层33上形成一第一绝缘层34,得到一触控集成显示面板3。其中,所述第一绝缘层34包覆所述第一触控导电层33并填充所述第一触控导电层33的图案间隙,所述第一绝缘层34上形成有一第一开口341,部分所述第一触控导电层33自所述第一开口341中暴露出来。所述第一开口341位于所述非显示区303内。Referring to FIG. 3d, a first insulating layer 34 is formed on the first touch conductive layer 33 to obtain a touch integrated display panel 3. The first insulating layer 34 covers the first touch conductive layer 33 and fills the pattern gap of the first touch conductive layer 33. A first opening 341 is formed on the first insulating layer 34. A portion of the first touch conductive layer 33 is exposed from the first opening 341. The first opening 341 is located in the non-display area 303.

请参阅图3e,在所述所述薄膜封装层32上形成一导电银胶层35。所述导电银胶层35与自所述第一开口341中暴露出来的所述第一触控导电层33相接从而相电连接。Referring to FIG. 3e, a conductive silver paste layer 35 is formed on the thin film encapsulation layer 32. The conductive silver paste layer 35 is electrically connected to the first touch conductive layer 33 exposed from the first opening 341.

本实施例中,所述导电银胶层形成于所述非显示区303。In this embodiment, the conductive silver paste layer is formed on the non-display area 303.

请参阅图3f,沿所述OLED子单元301的边界,将所述母板分割为多个子板,得到多个触控集成显示面板3。Referring to FIG. 3f, the motherboard is divided into a plurality of sub-boards along the boundary of the OLED sub-unit 301 to obtain a plurality of touch integrated display panels 3.

请一并参阅图3e,所述触控集成显示面板3包括发光体31;形成于发光体31上的薄膜封装层32;通过打印技术形成于所述薄膜封装层32上的图案化的第一触控导电层33;覆盖所述第一触控导电层33并填充所述第一触控导电层33的图案间隙的第一绝缘层34,所述第一绝缘层34上形成有一第一开口341,部分所述第一触控导电层33自所述第一开口341中暴露出来;形成于所述薄膜封装层32上的导电银胶层35。Referring to FIG. 3e, the touch integrated display panel 3 includes an illuminant 31; a thin film encapsulation layer 32 formed on the illuminant 31; and a patterned first formed on the thin film encapsulation layer 32 by a printing technique. a first conductive layer 34 covering the pattern gap of the first touch conductive layer 33 and a first opening formed on the first insulating layer 34 341. The portion of the first touch conductive layer 33 is exposed from the first opening 341; and the conductive silver paste layer 35 is formed on the thin film encapsulation layer 32.

其中,所述触控集成显示面板3划分有显示区302及位于所述显示区302边缘的非显示区303,所述第一开口341位于所述非显示区303内,所述导电银胶层35也形成于所述非显示区303内,所述导电银胶层35与自所述第一开口341中暴露出来的所述第一触控导电层33相接从而相电连接。The touch integrated display panel 3 is divided into a display area 302 and a non-display area 303 located at an edge of the display area 302. The first opening 341 is located in the non-display area 303, and the conductive silver glue layer 35 is also formed in the non-display area 303, and the conductive silver glue layer 35 is electrically connected to the first touch conductive layer 33 exposed from the first opening 341.

优选地,所述第一绝缘层34采用树脂材料制成。Preferably, the first insulating layer 34 is made of a resin material.

优选地,所述第一触控导电层33、所述第一绝缘层34及所述导电银胶层35均通过打印技术形成;更优选地,所述第一触控导电层33、所述第一绝缘层34及所述导电银胶层35均通过喷墨打印技术形成。 Preferably, the first touch conductive layer 33, the first insulating layer 34 and the conductive silver paste layer 35 are all formed by a printing technique; more preferably, the first touch conductive layer 33, the The first insulating layer 34 and the conductive silver paste layer 35 are each formed by an inkjet printing technique.

所述第一触控导电层的材质可以为包含导电性颗粒的材料,优选地,可以为包含纳米导电粒子、金属银/铜纳米线、石墨烯等导电性颗粒的材料。The material of the first touch conductive layer may be a material containing conductive particles, and preferably may be a material containing conductive particles such as nano conductive particles, metallic silver/copper nanowires, and graphene.

本技术方案第二实施例提供一种触控集成显示面板4及制备方法。The second embodiment of the present technical solution provides a touch integrated display panel 4 and a preparation method thereof.

请参阅图4a-4b,提供一有机发光二极体(OLED)面板40,所述OLED面板40包括发光体41及薄膜封装层42。Referring to FIGS. 4a-4b, an organic light emitting diode (OLED) panel 40 is provided. The OLED panel 40 includes an illuminant 41 and a thin film encapsulation layer 42.

所述OLED面板40为母板,包括有多个OLED子单元401,每个OLED子单元401上均划分有显示区402及非显示区403。所述非显示区403位于所述显示区402的边缘。The OLED panel 40 is a motherboard, and includes a plurality of OLED sub-units 401. Each of the OLED sub-units 401 is divided into a display area 402 and a non-display area 403. The non-display area 403 is located at an edge of the display area 402.

请参阅图4c,通过打印技术在所述薄膜封装层42上形成一图案化的第一触控导电层43。Referring to FIG. 4c, a patterned first touch conductive layer 43 is formed on the thin film encapsulation layer 42 by a printing technique.

请参阅图4d,在所述第一触控导电层43上形成一第一绝缘层44,所述第一绝缘层44包覆部分所述第一触控导电层43并填充所述第一触控导电层43的图案间隙。Referring to FIG. 4d, a first insulating layer 44 is formed on the first touch conductive layer 43. The first insulating layer 44 covers a portion of the first touch conductive layer 43 and fills the first touch. The pattern gap of the conductive layer 43 is controlled.

所述第一绝缘层44上还形成有至少一个第一开口441,所述至少一个第一开口441暴露出部分所述第一触控导电层43。所述第一开口441位于所述非显示区403。The first insulating layer 44 is further formed with at least one first opening 441, and the at least one first opening 441 exposes a portion of the first touch conductive layer 43. The first opening 441 is located in the non-display area 403.

请参阅图4e,通过打印技术在所述第一绝缘层44上形成一图案化的第二触控导电层46;Referring to FIG. 4e, a patterned second touch conductive layer 46 is formed on the first insulating layer 44 by a printing technique;

请参阅图4f,在所述第二触控导电层46上形成一第二绝缘层47。Referring to FIG. 4f, a second insulating layer 47 is formed on the second touch conductive layer 46.

所述第二绝缘层47上还形成有至少一个第二开口471,所述至少一个第二开口471暴露出部分所述第二触控导电层46。所述第二开口471也位于所述非显示区403,且与所述第一开口441位置不同。The second insulating layer 47 is further formed with at least one second opening 471, and the at least one second opening 471 exposes a portion of the second touch conductive layer 46. The second opening 471 is also located in the non-display area 403 and is different in position from the first opening 441.

47请参阅图4g,在所述薄膜封装层42上形成一导电银胶层45。所述导电银胶层45位于所述非显示区403,且与暴露于所述第一开口441内的所述第一触控导电层43相接从而相电连接。Referring to FIG. 4g, a conductive silver paste layer 45 is formed on the thin film encapsulation layer 42. The conductive silver paste layer 45 is located in the non-display area 403 and is electrically connected to the first touch conductive layer 43 exposed in the first opening 441.

请参阅图4h,沿所述OLED子单元401的边界,将所述母板分割为子板,得到多个触控集成显示面板4。 Referring to FIG. 4h, along the boundary of the OLED sub-unit 401, the motherboard is divided into sub-boards to obtain a plurality of touch integrated display panels 4.

所述触控集成显示面板4包括发光体41;形成于发光体41上的薄膜封装层42;通过打印技术形成于所述薄膜封装层42上的图案化的第一触控导电层43;覆盖所述第一触控导电层43并填充所述第一触控导电层43的图案间隙的第一绝缘层44,所述第一绝缘层44上形成有至少一第一开口441,部分所述第一触控导电层43自所述第一开口441中暴露出来;通过打印技术形成于所述第一绝缘层44上的第二触控导电层46;形成于所述第二触控导电层46上的第二绝缘层47,所述第二绝缘层47上形成有至少一第二开口471,部分所述第二触控导电层46自所述第二开口471中暴露出来;形成于所述薄膜封装层42上的导电银胶层45。其中,所述触控集成显示面板4划分有显示区402及非显示区403,所述第一、第二开口441、471位于所述非显示区403内,所述导电银胶层45,也形成于所述非显示区403内,所述导电银胶层45与暴露于所述第一开口441内的所述第一触控导电层43相接从而相电连接。The touch integrated display panel 4 includes an illuminant 41; a thin film encapsulation layer 42 formed on the illuminant 41; and a patterned first touch conductive layer 43 formed on the thin film encapsulation layer 42 by a printing technique; The first touch conductive layer 43 fills the first insulating layer 44 of the pattern gap of the first touch conductive layer 43 . The first insulating layer 44 is formed with at least one first opening 441. The first touch conductive layer 43 is exposed from the first opening 441; the second touch conductive layer 46 is formed on the first insulating layer 44 by a printing technique; and is formed on the second touch conductive layer. a second insulating layer 47 on the second insulating layer 47 is formed with at least one second opening 471, and a portion of the second touch conductive layer 46 is exposed from the second opening 471; A conductive silver paste layer 45 on the thin film encapsulation layer 42. The touch integrated display panel 4 is divided into a display area 402 and a non-display area 403. The first and second openings 441 and 471 are located in the non-display area 403, and the conductive silver glue layer 45 is also The conductive silver paste layer 45 is in contact with the first touch conductive layer 43 exposed in the first opening 441 to be electrically connected.

本实施例中,所述第一触控导电层43通过所述导电银胶层45与一电子器件(图未示)相电连接;所述第二触控导电层46通过其他导电介质,如异方性导电胶、金线或锡膏等,与另一电子器件(图未示)相电连接。In this embodiment, the first touch conductive layer 43 is electrically connected to an electronic device (not shown) through the conductive silver paste layer 45; the second touch conductive layer 46 passes through other conductive media, such as The anisotropic conductive paste, gold wire or solder paste is electrically connected to another electronic device (not shown).

优选地,所述第一、第二绝缘层44、47采用树脂材料制成。Preferably, the first and second insulating layers 44, 47 are made of a resin material.

优选地,所述第一、第二触控导电层43、46,所述第一、第二绝缘层44、47及所述导电银胶层45均通过打印技术形成;更优选地,所述第一、第二触控导电层43、46,所述第一、第二绝缘层44、47及所述导电银胶层45均通过喷墨打印技术形成。Preferably, the first and second touch conductive layers 43, 46, the first and second insulating layers 44, 47 and the conductive silver paste layer 45 are all formed by a printing technique; more preferably, the The first and second touch conductive layers 43, 46, the first and second insulating layers 44, 47 and the conductive silver paste layer 45 are all formed by an inkjet printing technique.

所述第一触控导电层43与所述第二触控导电层46的材质可以相同也可以不同,所述第一绝缘层44及第二绝缘层的材质47可以相同也可以不同。所述第一触控导电层43、第二触控导电层46的材质可以为包含导电性颗粒的材料,优选地,可以为包含纳米导电粒子、金属银/铜纳米线、石墨烯等导电性颗粒的材料。The materials of the first touch conductive layer 43 and the second touch conductive layer 46 may be the same or different, and the materials 47 of the first insulating layer 44 and the second insulating layer may be the same or different. The material of the first touch conductive layer 43 and the second touch conductive layer 46 may be a material containing conductive particles, and preferably may be conductive materials including nano conductive particles, metallic silver/copper nanowires, graphene, and the like. The material of the particles.

在另一实施例中,请参阅图5a-5b,所述导电银胶层45也可以与暴露于所述第二开口471内的所述第二触控导电层46相接从而相电连接。 In another embodiment, referring to FIGS. 5a-5b, the conductive silver paste layer 45 may also be electrically connected to the second touch conductive layer 46 exposed in the second opening 471.

在又一实施例中,请参阅图6,所述导电银胶层45还可以包括第一部分451及第二部分452,所述第一部分451与暴露于所述第一开口441内的所述第一触控导电层43相接从而相电连接,所述第二部分452与暴露于所述第二开口471内的所述第二触控导电层46相接从而相电连接。所述第一触控导电层43及所述第二触控导电层46可以与同一或不同电子器件(图未示)相电连接。In another embodiment, referring to FIG. 6 , the conductive silver paste layer 45 may further include a first portion 451 and the first portion 451 and the first portion exposed to the first opening 441 A touch conductive layer 43 is connected to be electrically connected, and the second portion 452 is electrically connected to the second touch conductive layer 46 exposed in the second opening 471. The first touch conductive layer 43 and the second touch conductive layer 46 may be electrically connected to the same or different electronic devices (not shown).

在其他实施例中,也可以不形成所述导电银胶层,所述第一、第二触控导电层43、46均通过其他导电介质,如异方性导电胶、金线或锡膏等,与电子器件相电连接。In other embodiments, the conductive silver paste layer may not be formed, and the first and second touch conductive layers 43 and 46 pass through other conductive media, such as an anisotropic conductive paste, a gold wire or a solder paste. , electrically connected to the electronic device.

本技术方案提供的触控集成显示面板及制备方法具有如下有益效果:The touch integrated display panel and the preparation method provided by the technical solution have the following beneficial effects:

1.采用打印技术形成触控导电层,不需要采用传统的等离子处理以及刻蚀等制程,可最大程度的避免温度、压力等对OLED显示面板及内部器件的损伤,有助于提升制程良率。1. The printing technology is used to form the touch conductive layer, which does not require traditional plasma processing and etching processes, and can avoid damage to the OLED display panel and internal components by temperature and pressure to the greatest extent, and helps to improve the process yield. .

2.采用打印技术形成触控导电层,不需要黄光制程及蚀刻工艺,一步即可实现触控导电层的图案化,从而可以节约流程,节省成本。2. Using the printing technology to form the touch conductive layer, the yellow light process and the etching process are not required, and the patterning of the touch conductive layer can be realized in one step, thereby saving the process and saving the cost.

3.还可以采用打印方式形成绝缘层及导电银胶层,从而可以使形成的触控集成显示面板的平坦性较好,从而也方便触控集成显示面板与其他器件进行组装,并提升组装品质。3. The insulating layer and the conductive silver glue layer can also be formed by printing, so that the flatness of the formed touch integrated display panel is better, thereby facilitating the assembly of the touch integrated display panel and other devices, and improving the assembly quality. .

4.可以在母板上制作所述触控集成显示面板之后再分割,可以节省工艺及成本;并且,可以在母板的固定区域进行打印,打印干扰较少。4. The touch integrated display panel can be formed on the motherboard and then divided, which can save process and cost; and, printing can be performed in a fixed area of the motherboard, and printing interference is less.

5.打印技术可以兼容多种导电材料,从而使制程的可选范围较宽,可以根据工艺及产品需要,选择合适的导电材料进行打印。5. Printing technology can be compatible with a variety of conductive materials, so that the process can be selected in a wide range, according to the process and product needs, select the appropriate conductive materials for printing.

6.为了实现更多触控设计,可以打印形成多层触控导电层,设计灵活度较高;且层间连接用的孔内导电层可以与增层用的触控导电层同时形成,制程较为简单。6. In order to realize more touch design, a multi-layer touch conductive layer can be printed and printed, and the design flexibility is high; and the conductive layer in the hole for interlayer connection can be formed simultaneously with the touch conductive layer for the build-up layer, the process It's simpler.

以上所述是本发明的优选实施例,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也视为本发明的保护范围。 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 (20)

一种触控集成显示面板的制备方法,包括步骤:A method for preparing a touch integrated display panel, comprising the steps of: 提供一有机发光二极体面板,包括发光体及薄膜封装层;Providing an organic light emitting diode panel, including an illuminant and a thin film encapsulation layer; 通过打印技术在所述薄膜封装层上形成一第一触控导电层,并将所述第一触控导电层图案化;以及Forming a first touch conductive layer on the thin film encapsulation layer by a printing technique, and patterning the first touch conductive layer; 在所述第一触控导电层上形成一第一绝缘层,得到一触控集成显示面板。Forming a first insulating layer on the first touch conductive layer to obtain a touch integrated display panel. 如权利要求1所述的触控集成显示面板的制备方法,其特征在于,通过打印技术直接在所述薄膜封装层上形成图案化的所述第一触控导电层。The method for fabricating a touch integrated display panel according to claim 1 , wherein the patterned first touch conductive layer is directly formed on the thin film encapsulation layer by a printing technique. 如权利要求1所述的触控集成显示面板的制备方法,其特征在于,通过打印技术在所述薄膜封装层上形成一体的触控导电层,之后通过激光烧蚀将所述触控导电层图案化,得到图案化的所述第一触控导电层。The method for fabricating a touch integrated display panel according to claim 1 , wherein an integrated touch conductive layer is formed on the thin film encapsulation layer by a printing technique, and then the touch conductive layer is formed by laser ablation. Patterning to obtain the patterned first touch conductive layer. 如权利要求1所述的触控集成显示面板的制备方法,其特征在于,所述第一绝缘层通过喷墨打印技术或凸版印刷技术形成。The method of manufacturing a touch integrated display panel according to claim 1, wherein the first insulating layer is formed by an inkjet printing technique or a letterpress printing technique. 如权利要求4所述的触控集成显示面板的制备方法,其特征在于,所述第一绝缘层上形成有至少一第一开口,部分所述第一触控导电层暴露于所述至少一第一开口;所述有机发光二极体面板上划分有显示区及非显示区,所述至少第一开口位于所述非显示区。The method for fabricating a touch integrated display panel according to claim 4, wherein at least one first opening is formed on the first insulating layer, and a part of the first touch conductive layer is exposed to the at least one a first opening; the organic light emitting diode panel is divided into a display area and a non-display area, and the at least first opening is located in the non-display area. 如权利要求5所述的触控集成显示面板的制备方法,其特征在于,在形成所述第一绝缘层后,还包括步骤:在所述非显示区的所述薄膜封装层表面形成一导电银胶层,所述导电银胶层与暴露于所述至少一第一开口内的所述第一触控导电层相接从而相电连接。The method of claim 5, wherein after the forming the first insulating layer, the method further comprises: forming a conductive surface on the surface of the thin film encapsulation layer of the non-display area The silver paste layer is electrically connected to the first touch conductive layer exposed in the at least one first opening. 如权利要求5所述的触控集成显示面板的制备方法,其特征在于,直接通过打印技术在所述第一触控导电层上形成具有所述至少一个开口的所述第一绝缘层。The method for fabricating a touch integrated display panel according to claim 5, wherein the first insulating layer having the at least one opening is formed on the first touch conductive layer directly by a printing technique. 如权利要求1所述的触控集成显示面板的制备方法,其特征在于,在所述第一触控导电层上形成一第一绝缘层之后,还包括步骤:The method of claim 1 , wherein after forming a first insulating layer on the first touch conductive layer, the method further comprises the steps of: 通过打印技术在所述第一绝缘层上形成一第二触控导电层,并将所述第二 触控导电层图案化;及Forming a second touch conductive layer on the first insulating layer by a printing technique, and using the second Touch conductive layer patterning; and 在所述第二触控导电层上形成一第二绝缘层。Forming a second insulating layer on the second touch conductive layer. 如权利要求8所述的触控集成显示面板的制备方法,其特征在于,通过打印技术直接在所述薄膜封装层上形成图案化的所述第二触控导电层。The method for fabricating a touch integrated display panel according to claim 8 , wherein the patterned second touch conductive layer is directly formed on the thin film encapsulation layer by a printing technique. 如权利要求8所述的触控集成显示面板的制备方法,其特征在于,通过打印技术在所述薄膜封装层上形成一体的触控导电层,之后通过激光烧蚀将所述触控导电层图案化,得到图案化的所述第二触控导电层。The method for fabricating a touch integrated display panel according to claim 8 , wherein an integrated touch conductive layer is formed on the thin film encapsulation layer by a printing technique, and then the touch conductive layer is formed by laser ablation Patterning to obtain the patterned second touch conductive layer. 如权利要求8所述的触控集成显示面板的制备方法,其特征在于,所述第一绝缘层上形成有至少一第一开口,部分所述第一触控导电层暴露于所述至少一第一开口;所述第二绝缘层上形成有至少一第二开口,部分所述第二触控导电层暴露于所述至少一第二开口;所述有机发光二极体面板上划分有显示区及非显示区,所述至少一第一开口及所述至少一第二开口位于所述非显示区的不同位置。The method of claim 8 , wherein the first insulating layer is formed with at least one first opening, and a portion of the first touch conductive layer is exposed to the at least one a first opening; the second insulating layer is formed with at least one second opening, and the second touch conductive layer is exposed to the at least one second opening; the organic light emitting diode panel is divided into displays And the at least one first opening and the at least one second opening are located at different positions of the non-display area. 如权利要求11所述的触控集成显示面板的制备方法,其特征在于,在形成所述第二绝缘层后,还包括步骤:在所述非显示区形成一导电银胶层,所述导电银胶层与暴露于所述至少一第一开口内的所述第一触控导电层相接或与暴露于所述至少一第二开口内的所述第二触控导电层相接从而相电连接。The method of claim 11 , wherein after the forming the second insulating layer, the method further comprises: forming a conductive silver paste layer in the non-display area, the conductive The silver paste layer is in contact with the first touch conductive layer exposed in the at least one first opening or is in contact with the second touch conductive layer exposed in the at least one second opening. Electrical connection. 如权利要求11所述的触控集成显示面板的制备方法,其特征在于,在形成所述第二绝缘层后,还包括步骤:在所述非显示区形成一导电银胶层,所述导电银胶层包括相分隔的第一部分及第二部分,所述第一部分与暴露于所述至少一第一开口内的所述第一触控导电层相接从而相电连接,所述第二部分与暴露于所述至少一第二开口内的所述第二触控导电层相接从而相电连接。The method of claim 11 , wherein after the forming the second insulating layer, the method further comprises: forming a conductive silver paste layer in the non-display area, the conductive The silver paste layer includes a first portion and a second portion that are separated from each other, and the first portion is electrically connected to the first touch conductive layer exposed in the at least one first opening, and the second portion is electrically connected And electrically contacting the second touch conductive layer exposed in the at least one second opening to be electrically connected. 一种触控集成显示面板,包括:A touch integrated display panel comprising: 有机发光二极体面板,包括发光体及薄膜封装层;An organic light emitting diode panel comprising an illuminant and a thin film encapsulation layer; 图案化的第一触控导电层,通过打印技术形成于所述薄膜封装层上,所述第一触控导电层的材质为包含至少一种导电颗粒的材料;以及The patterned first touch conductive layer is formed on the thin film encapsulation layer by a printing technique, and the first touch conductive layer is made of a material containing at least one conductive particle; 第一绝缘层,形成于所述第一触控导电层上。The first insulating layer is formed on the first touch conductive layer. 如权利要求14所述的触控集成显示面板,其特征在于,所述第一绝 缘层上形成有至少一第一开口,部分所述第一触控导电层暴露于所述至少一第一开口,所述触控集成显示面板划分有显示区及非显示区,所述至少一第一开口位于所述非显示区。The touch integrated display panel according to claim 14, wherein the first At least one first opening is formed on the edge layer, and the first touch conductive layer is exposed to the at least one first opening, and the touch integrated display panel is divided into a display area and a non-display area, the at least one The first opening is located in the non-display area. 如权利要求15所述的触控集成显示面板,其特征在于,还包括一导电银胶层,所述导电银胶层形成于所述非显示区,所述导电银胶层与暴露与所述至少一第一开口的所述第一触控导电层相接从而相电连接。The touch integrated display panel of claim 15 further comprising a conductive silver paste layer, said conductive silver paste layer being formed on said non-display area, said conductive silver paste layer being exposed and said The first touch conductive layers of the at least one first opening are connected to be electrically connected. 如权利要求14所述的触控集成显示面板,其特征在于,还包括通过打印技术形成于所述第一绝缘层上的第二触控导电层,及形成于所述第二触控导电层上的第二绝缘层;所述第一绝缘层上形成有至少一第一开口,部分所述第一触控导电层暴露于所述至少一第一开口;所述第二绝缘层上形成有至少一第二开口,部分所述第二触控导电层暴露于所述至少一第二开口;所述有机发光二极体面板上划分有显示区及非显示区,所述至少一第一开口及所述至少一第二开口位于所述非显示区的不同位置,其中,所述第二触控导电层的材质为包含至少一种导电颗粒的材料。The touch integrated display panel of claim 14 , further comprising a second touch conductive layer formed on the first insulating layer by a printing technique, and formed on the second touch conductive layer a second insulating layer; at least one first opening is formed on the first insulating layer, and part of the first touch conductive layer is exposed to the at least one first opening; and the second insulating layer is formed on the second insulating layer At least one second opening, a portion of the second touch conductive layer is exposed to the at least one second opening; the organic light emitting diode panel is divided into a display area and a non-display area, the at least one first opening And the at least one second opening is located at different positions of the non-display area, wherein the second touch conductive layer is made of a material containing at least one conductive particle. 如权利要求17所述的触控集成显示面板,其特征在于,所述第一触控导电层及第二触控导电层及所述孔内导电层的材质均为包含纳米导电粒子、金属银/铜纳米线及石墨烯中的至少一种导电颗粒的材料。The touch integrated display panel of claim 17, wherein the first touch conductive layer and the second touch conductive layer and the inner conductive layer of the hole are made of nano conductive particles and metallic silver. / Copper nanowires and materials of at least one of the conductive particles. 如权利要求17所述的触控集成显示面板,其特征在于,还包括一导电银胶层,所述导电银胶层形成于所述非显示区,所述导电银胶层与暴露于所述至少一第一开口内的所述第一触控导电层相接或与暴露于所述至少一第二开口内的所述第二触控导电层相接从而相电连接。The touch integrated display panel of claim 17 further comprising a conductive silver paste layer, said conductive silver paste layer being formed on said non-display area, said conductive silver paste layer being exposed to said The first touch conductive layer in at least one first opening is connected to or in contact with the second touch conductive layer exposed in the at least one second opening to be electrically connected. 如权利要求17所述的触控集成显示面板,其特征在于,还包括一导电银胶层,所述导电银胶层形成于所述非显示区,所述导电银胶层包括相分隔的第一部分及第二部分,所述第一部分与暴露于所述至少一第一开口内的所述第一触控导电层相接从而相电连接,所述第二部分与暴露于所述至少一第二开口内的所述第二触控导电层相接从而相电连接。 The touch integrated display panel according to claim 17, further comprising a conductive silver paste layer, wherein the conductive silver paste layer is formed in the non-display area, and the conductive silver paste layer comprises a phase separation a portion and a second portion, the first portion is electrically connected to the first touch conductive layer exposed in the at least one first opening, and the second portion is exposed to the at least one The second touch conductive layers in the two openings are connected to be electrically connected.
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