CN112470107A - Touch display panel, preparation method thereof and touch display device - Google Patents
Touch display panel, preparation method thereof and touch display device Download PDFInfo
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- CN112470107A CN112470107A CN201880093832.9A CN201880093832A CN112470107A CN 112470107 A CN112470107 A CN 112470107A CN 201880093832 A CN201880093832 A CN 201880093832A CN 112470107 A CN112470107 A CN 112470107A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 430
- 238000000034 method Methods 0.000 claims description 60
- 238000005538 encapsulation Methods 0.000 claims description 38
- 239000012044 organic layer Substances 0.000 claims description 35
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 18
- 230000006698 induction Effects 0.000 claims description 8
- 238000004806 packaging method and process Methods 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- 239000011800 void material Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000005229 chemical vapour deposition Methods 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 5
- 238000005530 etching Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229920001621 AMOLED Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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Abstract
The invention provides a touch display panel, which comprises an organic electroluminescent layer, a first insulating layer and a first touch electrode, wherein the first insulating layer is arranged on one side of the organic electroluminescent layer, and first grooves which are arranged at intervals are formed in the first insulating layer; the first touch electrode is arranged in the first groove. The invention further provides a touch display device and a preparation method of the touch display panel. According to the touch display panel provided by the invention, the first touch electrode is arranged in the first insulating layer, so that the thickness and the weight of the touch display panel are reduced compared with the case that the first touch electrode is directly attached to the organic electroluminescent layer.
Description
The invention belongs to the technical field of display, and particularly relates to a touch display panel, a preparation method of the touch display panel and a touch display device.
With the advance of science and technology, various display devices, such as mobile phones, tablet computers, ultra-light and thin computers, satellite navigation, etc., are continuously emerging. In addition to the input or operation by a keyboard or a sliding mouse, the operation of the display device by using the touch technology is a very intuitive and popular operation method. The conventional touch display panel structure can be roughly divided into a touch panel and a display panel. The touch panel is provided with a protective substrate and a touch electrode substrate, and in the manufacturing process, the protective substrate is firstly attached to the touch electrode substrate to form the touch panel, and then the touch panel is attached to the display panel to finish the manufacturing of the touch display panel. The attaching technology makes the whole thickness and weight of the touch display panel structure larger and the manufacturing process complicated.
Disclosure of Invention
In view of this, the present invention provides a touch display panel that is relatively thin and light. The specific technical scheme is as follows.
A touch display panel, the touch display panel comprising:
an organic electroluminescent layer;
the first insulating layer is arranged on one side of the organic electroluminescent layer and provided with first grooves arranged at intervals;
the first touch electrode is arranged in the first groove.
Preferably, the touch display panel further includes:
the second insulating layer is arranged on one side, away from the organic electroluminescent layer, of the first touch electrode;
the third insulating layer is arranged on one side, far away from the first insulating layer, of the second insulating layer, and second grooves are formed in the third insulating layer at intervals;
and the second touch electrode is arranged in the second groove.
Preferably, the touch display panel further includes:
the packaging layer is arranged on one side of the organic electroluminescent layer, and the first insulating layer is arranged on the surface, far away from the organic electroluminescent layer, of the packaging layer.
Preferably, the touch display panel includes a first organic layer disposed on the surfaces of the first insulating layer and the first touch electrode away from the encapsulation layer; the second insulating layer is disposed on a surface of the first organic layer remote from the first insulating layer.
Preferably, the encapsulation layer includes a fourth insulating layer disposed on one side of the organic electroluminescent layer, and the first insulating layer and the first touch electrode are disposed on one side of the fourth insulating layer away from the organic electroluminescent layer.
Preferably, the encapsulation layer further includes a second organic layer and a fifth insulating layer, the second organic layer is disposed on a surface of the fourth insulating layer away from the organic electroluminescent layer, the fifth insulating layer is disposed on a surface of the second organic layer away from the fourth insulating layer, and the first insulating layer and the first touch electrode are disposed on a surface of the fifth insulating layer away from the organic electroluminescent layer.
Preferably, the first touch electrode is a driving electrode or an induction electrode; when the first touch electrode is a driving electrode of the touch display panel, the second touch electrode is an induction electrode; when the first touch electrode is an induction electrode of the touch display panel, the second touch electrode is a driving electrode.
The invention also provides a touch display device which comprises the touch display panel.
The invention also provides a preparation method of the touch display panel, which comprises the following steps:
providing an organic electroluminescent layer;
forming a first insulating layer on one side of the organic electroluminescent layer, and forming first grooves arranged at intervals in the first insulating layer;
and forming a first touch electrode in the first groove.
Preferably, the method for manufacturing a touch display panel further includes:
forming a second insulating layer on one side of the first touch electrode, which is far away from the organic electroluminescent layer;
forming a third insulating layer on one side of the second insulating layer, which is far away from the first insulating layer, and forming third grooves arranged at intervals in the third insulating layer;
and forming a second touch electrode in the second groove.
Preferably, the method further includes, between the providing an organic electroluminescent layer and the forming a first insulating layer on one side of the organic electroluminescent layer, and forming first grooves spaced apart from each other in the first insulating layer:
forming an encapsulation layer on one side of the organic electroluminescent layer;
the forming of the first insulating layer on one side of the organic electroluminescent layer and the opening of the first grooves at intervals in the first insulating layer includes:
and forming a first insulating layer on the surface of the packaging layer far away from the organic electroluminescent layer, and forming first grooves arranged at intervals in the first insulating layer.
Preferably, the method for manufacturing a touch display panel further includes:
forming a first organic layer on the surfaces of the first insulating layer and the first touch electrode, which are far away from the packaging layer;
the step of forming a second insulating layer on the side of the first touch electrode away from the organic electroluminescent layer includes:
and forming a second insulating layer on the surface of the first organic layer far away from the first insulating layer.
Preferably, the preparation method of the encapsulation layer comprises the following steps:
forming a fourth insulating layer on one side of the organic electroluminescent layer;
the forming a first insulating layer on the surface of the encapsulation layer far away from the organic electroluminescent layer, and forming first grooves arranged at intervals in the first insulating layer includes:
and forming a first insulating layer on one side of the fourth insulating layer, which is far away from the organic electroluminescent layer, and forming first grooves arranged at intervals in the first insulating layer.
Preferably, the preparation method of the encapsulation layer further comprises:
forming a second organic layer on the surface of the fourth insulating layer far away from the organic electroluminescent layer;
forming a fifth insulating layer on the surface of the second organic layer away from the fourth insulating layer;
the step of forming a first insulating layer on a side of the fourth insulating layer away from the organic electroluminescent layer, and forming first grooves at intervals in the first insulating layer includes:
and forming a first insulating layer on the surface of the fifth insulating layer, which is far away from the organic electroluminescent layer, and forming first grooves at intervals in the first insulating layer.
Preferably, the forming a first insulating layer on one side of the organic electroluminescent layer and forming first grooves spaced apart in the first insulating layer includes:
providing a first mask plate, wherein the first mask plate is arranged on one side of the organic electroluminescent layer, a first preset distance is reserved between the first mask plate and the organic electroluminescent layer, the first mask plate comprises a plurality of first sub-mask plates distributed in a matrix manner, and first gaps are reserved between the first sub-mask plates;
providing a first gas phase source, wherein the first gas phase source is positioned on one side of the first mask plate far away from the organic electroluminescent layer and is used for providing a material for forming a first insulating layer;
the first gas phase source provides a material for forming the first insulating layer to one side of the organic electroluminescent layer through the first gap to form the first insulating layer and the first groove.
Preferably, the forming a third insulating layer on a side of the second insulating layer away from the first insulating layer, and opening third grooves arranged at intervals in the third insulating layer includes:
providing a second mask plate, wherein the second mask plate is arranged on one side, far away from the first insulating layer, of the second insulating layer, a second preset distance is reserved between the second mask plate and the second insulating layer, the second mask plate comprises a plurality of second sub-mask plates distributed in a matrix mode, and second gaps are reserved among the second sub-mask plates;
providing a second gas phase source, wherein the second gas phase source is positioned on one side, far away from the second insulating layer, of the second mask plate and is used for providing a material for forming a third insulating layer;
a second vapor source provides a material forming a third insulating layer to the second insulating layer through the second void to form a third insulating layer and a second recess.
Preferably, the method for forming the first touch electrode includes:
and filling a conductive material for forming a first touch electrode in the first groove to form the first touch electrode.
Preferably, the method for forming the second touch electrode includes:
and filling a conductive material for forming a second touch electrode in the second groove to form the second touch electrode.
The invention has the beneficial effects that: according to the touch display panel provided by the invention, the first touch electrode is arranged in the first insulating layer, so that the thickness and the weight of the touch display panel are reduced compared with the case that the first touch electrode is directly attached to the organic electroluminescent layer.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a touch display panel according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a touch display panel according to a second embodiment of the present invention.
Fig. 3 shows two circuit patterns of the first touch electrode and the second touch electrode according to the present invention.
Fig. 4 is a schematic structural diagram of a touch display panel according to a third embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a touch display panel according to a fourth embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a touch display panel according to a fifth embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a touch display panel according to a sixth embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a touch display device according to the present invention.
Fig. 9 is a flowchart of a method for manufacturing a touch display panel according to the present invention.
Fig. 10 is a flowchart of a method for manufacturing an encapsulation layer in a touch display panel according to the present invention.
Fig. 11 is a schematic diagram of forming a first insulating layer and a first groove according to the present invention.
Fig. 12 is a flowchart of a method for forming a first insulating layer and a first recess according to the present invention.
Fig. 13 is a schematic diagram of forming a third insulating layer and a second groove according to the present invention.
Fig. 14 is a flowchart of a method for forming a third insulating layer and a second trench according to the present invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," and the like in the description and in the claims, and in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, a touch display panel 10 according to a first embodiment of the present invention includes an organic electroluminescent layer 100, a first insulating layer 300, and a first touch electrode 400. The first insulating layer 300 is disposed on one side of the organic electroluminescent layer 100, the first insulating layer 300 defines first grooves 310 disposed at intervals, and the first touch electrode 400 is disposed in the first grooves 310. It is understood that the first touch electrode 400 includes a driving electrode and a sensing electrode, that is, the driving electrode and the sensing electrode may be simultaneously disposed in the first groove 310 in the first insulating layer 300. The driving electrodes and the sensing electrodes together form a first touch electrode 400 to implement the touch function of the touch display panel 10. It will be appreciated that the drive and sense electrodes are arranged in isolation. In the touch display panel 10 provided by the invention, the first touch electrode 400 is arranged in the first groove 310 in the first insulating layer 300, which reduces the thickness and weight of the touch display panel compared with the case that the first touch electrode is directly attached to the organic electroluminescent layer 100. Compared with the method that the whole touch electrode is attached to the organic electroluminescent layer 100, the light emitting area of the organic electroluminescent layer 100 is increased, and the light emitting effect is improved.
It is understood that the first touch electrode 400 may also be only a driving electrode or a sensing electrode. When the first touch electrode 400 is a driving electrode, the touch display panel 10 may further include an induction electrode, and the induction electrode is disposed in a film layer except the first insulating layer, wherein the induction electrode may be disposed on one side of the first touch electrode 400 in an insulating manner, may be disposed on one side of the first touch electrode 400 in a patterned insulating manner, or may be disposed in another manner, and when the first touch electrode 400 is disposed in the above structure, the effects of reducing the thickness and weight of the touch display panel, and increasing the light emitting area and the light emitting effect may be achieved. When the first touch electrode 400 is an inductive electrode, the above effects can be achieved.
Referring to fig. 2, a touch display panel 10a according to a second embodiment of the present invention is provided, in which the touch display panel 10a further includes a second insulating layer 500, a third insulating layer 600 and a second touch electrode 700. The second insulating layer 500 is disposed on a side of the first touch electrode 400 away from the organic electroluminescent layer 100. The second insulating layer 500 is used to electrically insulate and separate the first touch electrode 400 and the second touch electrode 700. It is understood that the second insulating layer 500 may cover the first touch electrode 400 and the first insulating layer 300. The third insulating layer 600 is disposed on a side of the second insulating layer 500 away from the first insulating layer 300, the third insulating layer 600 is formed with second grooves 610 disposed at intervals, and the second touch electrode 700 is disposed in the second grooves 610. It is understood that the first touch electrode 400 is a driving electrode or a sensing electrode, and the second touch electrode 700 can be a driving electrode or a sensing electrode. When the first touch electrode 400 is a driving electrode of the touch display panel 10a, the second touch electrode 700 is a sensing electrode, and when the first touch electrode 400 is a sensing electrode of the touch display panel 10a, the second touch electrode 700 is a driving electrode. The first touch electrode 400 and the second touch electrode 700 constitute a touch electrode of the touch display panel 10a to realize a touch function. In this embodiment, the second touch electrode 700 is disposed in the third insulating layer 600, which further reduces the thickness and weight of the touch display panel, increases the light emitting area of the organic electroluminescent layer 100, and improves the light emitting effect, compared with the case where the second touch electrode 700 is directly attached to the film layer. The first touch electrode 400 and the second touch electrode 700 are both disposed in the groove of the insulating layer, which reduces the thickness and weight of the touch display panel, and compared with the case where only the first touch electrode 400 is disposed, the entire touch display panel 10 is thinner and lighter, thereby further increasing the light emitting area and improving the light emitting effect.
It is understood that the orthographic projections of the first touch electrode 400 and the second touch electrode 700 on the organic electroluminescent layer 100 are arranged crosswise, and the line patterns of the two touch electrodes include two types as shown in a and b in fig. 3. Specifically, at the intersection position X (see b diagram in fig. 3) of the orthographic projections of the first touch electrode 400 and the second touch electrode 700 on the organic electroluminescent layer 100, the first touch electrode 400 and the second touch electrode 700 are separated by an insulating layer, for example, the second insulating layer 500 (see fig. 2) in fig. 2, that is, the orthographic projections of the first touch electrode 400 and the second touch electrode 700 on the organic electroluminescent layer 100 only overlap at the intersection position X, and at other positions, the orthographic projections of the first touch electrode 400 and the second touch electrode 700 on the organic electroluminescent layer 100 do not overlap, and such an intersecting insulating arrangement can reduce the overlapping area between the first touch electrode 400 and the second touch electrode 700, reduce the capacitance background value between the first touch electrode 400 and the second touch electrode 700, and increase the touch sensing amount.
Referring to fig. 4, a touch display panel 10b according to a third embodiment of the present invention is provided, in which the touch display panel 10b further includes a package layer 200. Wherein the encapsulation layer 200 is disposed on a side of the organic electroluminescent layer 100 and the first insulating layer 300 is disposed on a surface of the encapsulation layer 200 remote from the organic electroluminescent layer 100. The encapsulation layer 200 is a film layer encapsulating the organic electroluminescent layer 100 to protect the organic electroluminescent layer 100, and it is understood that the encapsulation layer 200 may be formed by one or more film layers. Wherein the second insulating layer 500 may form an overall package with the encapsulation layer 200 to jointly protect the organic electroluminescent layer 100.
Referring to fig. 5, a touch display panel 10c is provided in a fourth embodiment of the present invention, in which the touch display panel 10c further includes a first organic layer 800, the first organic layer 800 is disposed on the first insulating layer 300 and the surface of the first touch electrode 400 away from the encapsulation layer 200, and the second insulating layer 500 is disposed on the surface of the first organic layer 800 away from the first insulating layer 300. The first organic layer 800 is used to increase flexibility between the first touch electrode 400 and the second touch electrode 700, so as to reduce the risk that the first touch electrode 400 and the second touch electrode 700 are damaged in a pressed state.
Referring to fig. 6, a fifth embodiment of the invention provides a touch display panel 10d, in which the package layer 200 includes a fourth insulating layer 210, the fourth insulating layer 210 is disposed on a side of the organic electroluminescent layer 100, and the first insulating layer 300 and the first touch electrode 400 are disposed on a side of the fourth insulating layer 210 away from the organic electroluminescent layer 100. The fourth insulating layer 210 protects the organic electroluminescent layer 100. In this embodiment, the fourth insulating layer 210 (encapsulation layer 200), the first organic layer 800, and the second insulating layer 500 constitute a total encapsulation layer 200a to collectively protect the organic electroluminescent layer 100. The first touch electrode 400 is disposed in the overall package layer 200a, further protecting the first touch electrode 400.
Referring to fig. 7, a sixth embodiment of the invention provides a touch display panel 10e, in which the package layer 200 includes a fourth insulating layer 210, the fourth insulating layer 210 is disposed on one side of the organic electroluminescent layer 100, the package layer 200 further includes a second organic layer 220 and a fifth insulating layer 230, the second organic layer 220 is disposed on a surface of the fourth insulating layer 210 away from the organic electroluminescent layer 100, the fifth insulating layer 230 is disposed on a surface of the second organic layer 220 away from the fourth insulating layer 210, and the first insulating layer 300 and the first touch electrode 400 are disposed on a surface of the fifth insulating layer 230 away from the organic electroluminescent layer 100. That is, the organic electroluminescent layer 100 is protected by the encapsulation layer 200 formed by the fourth insulation layer 210, the second organic layer 220 and the fifth insulation layer 230. In this embodiment, the encapsulation layer 200 (including the fourth insulation layer 210, the second organic layer 220, and the fifth insulation layer 230) and the second insulation layer 500 constitute an overall encapsulation to collectively protect the organic electroluminescent layer 100.
Referring to fig. 8, the present invention further provides a touch display device 20, wherein the touch display device 20 includes the touch display panel 10 according to any of the embodiments. The touch display device 20 may be, but not limited to, an electronic book, a smart Phone (e.g., an Android Phone, an iOS Phone, a Windows Phone, etc.), a tablet computer, a flexible palm computer, a flexible notebook computer, a Mobile Internet device (MID, Mobile Internet Devices), or a wearable device, or may be an Organic Light-Emitting Diode (OLED) touch display device, an Active Matrix Organic Light-Emitting Diode (AMOLED) touch display device.
Referring to fig. 9, the present invention provides a method for manufacturing a touch display panel 10, wherein the method for manufacturing the touch display panel 10 includes steps S100, S200 and S300. The steps are described in detail below.
In step S100, an organic electroluminescent layer 100 is provided.
In step S200, a first insulating layer 300 is formed on one side of the organic electroluminescent layer 100, and first grooves 310 are opened in the first insulating layer 300 at intervals. A method of forming the first insulating layer 300 and the first groove 310 includes a chemical vapor deposition method or an evaporation method. The damage to the organic electroluminescent layer 100 or other film layers during the formation of the first insulating layer 300 and the first groove 310 may be reduced by using a chemical vapor deposition method or an evaporation method as compared to an etching method, so as to protect the organic electroluminescent layer 100 and other film layers.
In step S300, a first touch electrode 400 is formed in the first groove 310. The method for forming the first touch electrode 400 includes, but is not limited to, a chemical vapor deposition method. The first touch electrode 400 is formed in the first insulating layer 300, which reduces the thickness and weight of the touch display panel 10 and increases the light emitting area, compared to the case where the first touch electrode is directly attached to one side of the organic electroluminescent layer 100.
It is understood that the first touch electrode 400 may be only a sensing electrode or a driving electrode, and may also include both the sensing electrode and the driving electrode. When the first touch electrode 400 includes both the sensing electrode and the driving electrode, the first touch electrode further includes an insulating layer for insulating the sensing electrode and the driving electrode during the formation process. When the first touch electrode 400 is only a driving electrode, the method for manufacturing the touch display panel 10 further includes forming a sensing electrode, and it can be understood that the sensing electrode may be formed on one side of the first touch electrode 400 in an insulating manner, or formed on one side of the first touch electrode 400 in a patterned insulating manner, or arranged in other manners, so long as the first touch electrode 400 is formed through the above steps, the effects of reducing the thickness and weight of the touch display panel, and increasing the light emitting area and the light emitting effect can be achieved.
Referring to fig. 9 again, in a further embodiment, the method for manufacturing the touch display panel 10 includes steps S400, S500 and S600. The individual steps are described in detail below.
In step S400, a second insulating layer 500 is formed on a side of the first touch electrode 400 away from the organic electroluminescent layer 100. Comprises forming a second insulating layer 500 on the first touch electrode 400 and the side of the first touch electrode 400 far away from the organic electroluminescent layer 100.
In step S500, a third insulating layer 600 is formed on a side of the second insulating layer 500 away from the first insulating layer 500, and second grooves 610 are formed in the third insulating layer 600 at intervals. The second insulating layer 500 is used to electrically insulate and separate the first touch electrode 400 and the second touch electrode 700. A method of forming the third insulating layer 600 and the second groove 610 includes a chemical vapor deposition method or an evaporation method. Compared with an etching method, the chemical vapor deposition method or the evaporation method can reduce damage to the first touch electrode 400 or other film layers during the formation of the third insulating layer 600 and the second groove 610, so as to protect the first touch electrode 400 and other film layers.
In step S600, a second touch electrode 700 is formed in the second groove 610.
The first touch electrode 400 and the second touch electrode 700 are both formed in the groove of the insulating layer, which reduces the thickness and weight of the touch display panel 10, and compared with the case where the first touch electrode 400 is formed by the above method, the entire touch display panel 10 is thinner, thereby further increasing the light emitting area and improving the light emitting effect.
In a further embodiment, between step S100 and step S200, forming an encapsulation layer 200 on one side of the organic electroluminescent layer 100 is further included. The step of forming the first insulating layer 300 on one side of the organic electroluminescent layer 100 and forming the first grooves 310 spaced apart from each other in the first insulating layer 300 includes forming the first insulating layer 300 on the surface of the encapsulation layer 200 away from the organic electroluminescent layer 100 and forming the first grooves 310 spaced apart from each other in the first insulating layer 300. Wherein the encapsulation layer 200 is used for encapsulating and protecting the organic electroluminescent layer 100. Methods of forming the encapsulation layer 200 include, but are not limited to, chemical vapor deposition. Wherein the encapsulation layer 200 may be a layer or a multi-layer film.
In a further embodiment, the method for manufacturing the touch display panel 10 further includes forming the first organic layer 800 on the first insulating layer 300 and the surface of the first touch electrode 400 away from the encapsulation layer 200. The "forming the second insulating layer 500 on the side of the first touch electrode 400 away from the organic electroluminescent layer 100" includes forming the second insulating layer 500 on the surface of the first organic layer 800 away from the first insulating layer 300. The first organic layer 800 is used to increase flexibility between the first touch electrode 400 and the second touch electrode 700, so as to reduce the risk that the first touch electrode 400 and the second touch electrode 700 are damaged in a pressed state.
Referring to fig. 10, in a further embodiment, a method for manufacturing the encapsulation layer 200 includes step S201. The details are as follows.
In step S201, a fourth insulating layer 210 is formed on one side of the organic electroluminescent layer 100. The step of forming the first insulating layer 300 on the surface of the encapsulation layer 200 away from the organic electroluminescent layer 100 and forming the first grooves 310 spaced apart from each other in the first insulating layer 300 includes forming the first insulating layer 300 on the side of the fourth insulating layer 210 away from the organic electroluminescent layer 100 and forming the first grooves 310 spaced apart from each other in the first insulating layer 300. Wherein the fourth insulating layer 210 (encapsulation layer 200), the first organic layer 800 and the second insulating layer 500 constitute a total encapsulation layer to jointly protect the organic electroluminescent layer 100.
In a further embodiment, the method for preparing the encapsulation layer further includes step S202 and step S203. The steps are described in detail below.
In step S202, a second organic layer 220 is formed on the surface of the fourth insulating layer 210 away from the organic electroluminescent layer 100.
In step S203, a fifth insulating layer 230 is formed on the surface of the second organic layer 220 away from the fourth insulating layer 210. The step of forming the first insulating layer 300 on the side of the fourth insulating layer 210 away from the organic electroluminescent layer 100 and forming the first grooves 310 spaced apart from each other in the first insulating layer 300 includes forming the first insulating layer 300 on the surface of the fifth insulating layer 230 away from the organic electroluminescent layer 100 and forming the first grooves 310 spaced apart from each other in the first insulating layer 300.
Wherein the organic electroluminescent layer 100 is protected by the encapsulation layer 200 formed by the fourth insulation layer 210, the second organic layer 220 and the fifth insulation layer 230.
Referring to fig. 11 and 12, in a further embodiment, forming a first insulating layer 300 on a side of the organic electroluminescent layer 100 away from the organic electroluminescent layer 100, and forming first grooves 310 spaced apart from each other in the first insulating layer 300 includes steps S210, S220, and S230. The steps are described in detail below.
Step S210, providing a first mask plate 900, where the first mask plate 900 is disposed on one side of the organic electroluminescent layer 100, and a first preset distance is provided between the first mask plate 900 and the organic electroluminescent layer 100, the first mask plate 900 includes a plurality of first sub-mask plates 910 distributed in a matrix, and first gaps 920 are provided between the first sub-mask plates 910. It is understood that the first predetermined distance is at least the height of the first insulating layer 300. The width of the first gap 920 is at least the width of the first touch electrode 400. It is understood that the patterns of the first sub-mask 910 may be disposed according to the pattern of the first touch electrode 400.
In step S220, a first gas phase source 1000 is provided, wherein the first gas phase source 1000 is located on a side of the first mask 900 away from the organic electroluminescent layer 100, and the first gas phase source 1000 is used to provide a material for forming the first insulating layer 300.
In step S230, the first gas phase source 1000 provides the material forming the first insulating layer 300 to one side of the organic electroluminescent layer 100 through the first gap 920 to form the first insulating layer 300 and the first groove 310. It is understood that, after the first gas phase source 1000 provides the material for forming the first insulating layer 300 through the first gap 920, the first insulating layer 300 is formed on the portion of the organic electroluminescent layer 100 corresponding to the first gap 920, and the portion of the organic electroluminescent layer 100 blocked by the first sub-mask 910 and not receiving the material for forming the first insulating layer 300 is not deposited with any material, so that the first grooves 310 are formed at intervals.
Referring to fig. 13 and 14, in a further embodiment, forming a third insulating layer 600 on a side of the second insulating layer 500 away from the first insulating layer 500, and forming second grooves 610 spaced apart from each other in the third insulating layer 600 includes steps S510, S520, and S530. The steps are described in detail below.
Step S510, providing a second mask plate 900a, where the second mask plate 900a is disposed on a side of the second insulating layer 500 away from the first insulating layer 300, and a second preset distance is provided between the second mask plate 900a and the second insulating layer 500, the second mask plate 900a includes a plurality of second sub-mask plates 910a distributed in a matrix, and second gaps 920a are provided between the second sub-mask plates 910 a. It is understood that the second predetermined distance is at least the height of the third insulating layer 600. The width of the second gap 920a is at least the width of the second touch electrode 700. It is understood that the patterns of the second sub-mask 910a may be arranged according to the pattern of the second touch electrode 700.
Step S520, providing a second vapor source 1000a, where the second vapor source 1000a is located on a side of the second mask 900a away from the second insulating layer 500, and the second vapor source 1000a is used to provide a material for forming the third insulating layer 600.
In step S530, the second vapor source 1000a supplies the material for forming the third insulating layer 600 to the second insulating layer 500 through the second gap 920a to form the third insulating layer 600 and the second groove 610. It is understood that, after the material for forming the third insulation layer 600 is supplied from the second vapor source 1000a through the second gap 920a, the third insulation layer 600 is formed on a portion of the second insulation layer 500 corresponding to the second gap 920a, and a portion of the surface of the second insulation layer 500, which is blocked by the second sub-mask 910a and does not receive the material for forming the third insulation layer 600, is not deposited with any material, thereby forming the second grooves 610 disposed at intervals.
In a further embodiment, the method for forming the first touch electrode 400 includes filling a conductive material for forming the first touch electrode 400 in the first groove 310 to form the first touch electrode 400. The filling method includes a chemical vapor deposition method, and compared with the method of forming the first touch electrode 400 through an etching process, the method can effectively prevent the organic electroluminescent layer 100 from being damaged.
In a further embodiment, the method for forming the second touch electrode 700 includes filling the conductive material for forming the second touch electrode 700 in the second groove 610 to form the second touch electrode 700. The filling method includes a chemical vapor deposition method, and compared with the method of forming the second touch electrode 700 through an etching process, the method can effectively prevent the organic electroluminescent layer 100 from being damaged.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (18)
- A touch display panel, comprising:an organic electroluminescent layer;the first insulating layer is arranged on one side of the organic electroluminescent layer and provided with first grooves arranged at intervals;the first touch electrode is arranged in the first groove.
- The touch display panel of claim 1, further comprising:the second insulating layer is arranged on one side, away from the organic electroluminescent layer, of the first touch electrode;the third insulating layer is arranged on one side, far away from the first insulating layer, of the second insulating layer, and second grooves are formed in the third insulating layer at intervals;and the second touch electrode is arranged in the second groove.
- The touch display panel of claim 2, further comprising:the packaging layer is arranged on one side of the organic electroluminescent layer, and the first insulating layer is arranged on the surface, far away from the organic electroluminescent layer, of the packaging layer.
- The touch display panel according to claim 3, wherein the touch display panel comprises a first organic layer disposed on a surface of the first insulating layer and the first touch electrode away from the encapsulation layer; the second insulating layer is disposed on a surface of the first organic layer remote from the first insulating layer.
- The touch display panel according to claim 3, wherein the encapsulation layer comprises a fourth insulating layer disposed on a side of the organic electroluminescent layer, and wherein the first insulating layer and the first touch electrode are disposed on a side of the fourth insulating layer away from the organic electroluminescent layer.
- The touch display panel according to claim 5, wherein the encapsulation layer further comprises a second organic layer and a fifth insulating layer, the second organic layer is disposed on a surface of the fourth insulating layer away from the organic electroluminescent layer, the fifth insulating layer is disposed on a surface of the second organic layer away from the fourth insulating layer, and the first insulating layer and the first touch electrode are disposed on a surface of the fifth insulating layer away from the organic electroluminescent layer.
- The touch display panel of claim 2, wherein the first touch electrode is a driving electrode or a sensing electrode; when the first touch electrode is a driving electrode of the touch display panel, the second touch electrode is an induction electrode; when the first touch electrode is an induction electrode of the touch display panel, the second touch electrode is a driving electrode.
- A touch display device, comprising the touch display panel according to any one of claims 1 to 7.
- A preparation method of a touch display panel is characterized by comprising the following steps:providing an organic electroluminescent layer;forming a first insulating layer on one side of the organic electroluminescent layer, and forming first grooves arranged at intervals in the first insulating layer;and forming a first touch electrode in the first groove.
- The method for manufacturing a touch display panel according to claim 9, further comprising:forming a second insulating layer on one side of the first touch electrode, which is far away from the organic electroluminescent layer;forming a third insulating layer on one side of the second insulating layer, which is far away from the first insulating layer, and forming third grooves arranged at intervals in the third insulating layer;and forming a second touch electrode in the second groove.
- The method as claimed in claim 10, wherein the step of providing an organic electroluminescent layer and the step of forming a first insulating layer on one side of the organic electroluminescent layer and forming first grooves spaced apart from each other in the first insulating layer further comprises:forming an encapsulation layer on one side of the organic electroluminescent layer;the forming of the first insulating layer on one side of the organic electroluminescent layer and the opening of the first grooves at intervals in the first insulating layer includes:and forming a first insulating layer on the surface of the packaging layer far away from the organic electroluminescent layer, and forming first grooves arranged at intervals in the first insulating layer.
- The method for manufacturing a touch display panel according to claim 11, further comprising:forming a first organic layer on the surfaces of the first insulating layer and the first touch electrode, which are far away from the packaging layer;the step of forming a second insulating layer on the side of the first touch electrode away from the organic electroluminescent layer includes:and forming a second insulating layer on the surface of the first organic layer far away from the first insulating layer.
- The method for manufacturing a touch display panel according to claim 11, wherein the method for manufacturing the encapsulation layer comprises:forming a fourth insulating layer on one side of the organic electroluminescent layer;the forming a first insulating layer on the surface of the encapsulation layer far away from the organic electroluminescent layer, and forming first grooves arranged at intervals in the first insulating layer includes:and forming a first insulating layer on one side of the fourth insulating layer, which is far away from the organic electroluminescent layer, and forming first grooves arranged at intervals in the first insulating layer.
- The method for manufacturing a touch display panel according to claim 13, wherein the method for manufacturing the encapsulation layer further comprises:forming a second organic layer on the surface of the fourth insulating layer far away from the organic electroluminescent layer;forming a fifth insulating layer on the surface of the second organic layer away from the fourth insulating layer;the step of forming a first insulating layer on a side of the fourth insulating layer away from the organic electroluminescent layer, and forming first grooves at intervals in the first insulating layer includes:and forming a first insulating layer on the surface of the fifth insulating layer, which is far away from the organic electroluminescent layer, and forming first grooves at intervals in the first insulating layer.
- The method of claim 9, wherein forming a first insulating layer on one side of the organic electroluminescent layer and forming first grooves spaced apart in the first insulating layer comprises:providing a first mask plate, wherein the first mask plate is arranged on one side of the organic electroluminescent layer, a first preset distance is reserved between the first mask plate and the organic electroluminescent layer, the first mask plate comprises a plurality of first sub-mask plates distributed in a matrix manner, and first gaps are reserved between the first sub-mask plates;providing a first gas phase source, wherein the first gas phase source is positioned on one side of the first mask plate far away from the organic electroluminescent layer and is used for providing a material for forming a first insulating layer;the first gas phase source provides a material for forming the first insulating layer to one side of the organic electroluminescent layer through the first gap to form the first insulating layer and the first groove.
- The method as claimed in claim 10, wherein forming a third insulating layer on a side of the second insulating layer away from the first insulating layer and forming third grooves at intervals in the third insulating layer comprises:providing a second mask plate, wherein the second mask plate is arranged on one side, far away from the first insulating layer, of the second insulating layer, a second preset distance is reserved between the second mask plate and the second insulating layer, the second mask plate comprises a plurality of second sub-mask plates distributed in a matrix mode, and second gaps are reserved among the second sub-mask plates;providing a second gas phase source, wherein the second gas phase source is positioned on one side, far away from the second insulating layer, of the second mask plate and is used for providing a material for forming a third insulating layer;a second vapor source provides a material forming a third insulating layer to the second insulating layer through the second void to form a third insulating layer and a second recess.
- The method for manufacturing a touch display panel according to claim 9, wherein the method for forming the first touch electrode comprises:and filling a conductive material for forming a first touch electrode in the first groove to form the first touch electrode.
- The method for manufacturing a touch display panel according to claim 10, wherein the method for forming the second touch electrode comprises:and filling a conductive material for forming a second touch electrode in the second groove to form the second touch electrode.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/095286 WO2020010545A1 (en) | 2018-07-11 | 2018-07-11 | Touch-control display panel and preparation method therefor, and touch-control display device |
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| CN112470107A true CN112470107A (en) | 2021-03-09 |
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| CN201880093832.9A Pending CN112470107A (en) | 2018-07-11 | 2018-07-11 | Touch display panel, preparation method thereof and touch display device |
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| CN (1) | CN112470107A (en) |
| WO (1) | WO2020010545A1 (en) |
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| WO2020010545A1 (en) | 2020-01-16 |
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