CN111580695B - Display panel, manufacturing method thereof and display device - Google Patents
Display panel, manufacturing method thereof and display device Download PDFInfo
- Publication number
- CN111580695B CN111580695B CN202010356931.0A CN202010356931A CN111580695B CN 111580695 B CN111580695 B CN 111580695B CN 202010356931 A CN202010356931 A CN 202010356931A CN 111580695 B CN111580695 B CN 111580695B
- Authority
- CN
- China
- Prior art keywords
- transparent electrode
- electrode layer
- substrate
- layer
- display panel
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 174
- 238000000034 method Methods 0.000 claims description 20
- 239000002131 composite material Substances 0.000 claims description 6
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000010408 film Substances 0.000 description 17
- 230000009286 beneficial effect Effects 0.000 description 12
- 239000004065 semiconductor Substances 0.000 description 11
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 238000002834 transmittance Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- -1 indium tin metal oxide Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- 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
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses a display panel, a manufacturing method thereof and a display device, which relate to the technical field of display and comprise the following steps: a substrate base; an array layer located on one side of the substrate base plate; a light emitting element located on a side of the array layer remote from the substrate; a first transparent electrode layer located on a surface of a side of the light emitting element away from the substrate base plate; the insulating layer is positioned on one side of the first transparent electrode layer away from the substrate, and comprises a plurality of first through holes, and the first through holes penetrate through the insulating layer along the direction perpendicular to the substrate and expose at least part of the first transparent electrode layer; the touch electrodes are positioned on one side of the first transparent electrode layer far away from the substrate base plate, and at least two touch electrodes are electrically connected with the same first transparent electrode layer through a first via hole. Therefore, the first transparent electrode layer positioned on the surface of the light-emitting element far away from the substrate is used as the bridging connection layer of the touch electrode, so that the film structure of the display panel is simplified, and the thickness of the display panel is reduced.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel, a manufacturing method thereof and a display device.
Background
With the development of display technology, display panels integrated with touch functions are becoming a hot spot and mainstream technology trend of research. In recent years, touch panel technology has gradually replaced key technology as a mainstream technology of mobile terminals and the like. The touch screen technology is a technology for determining inputted information by detecting a touched position when a finger, pen, or the like touches a touch screen mounted on the front end of a display and transmitting the detected position to a CPU. At present, the application range of the touch screen is very wide, and main products comprise mobile terminals such as touch mobile phones, notebook computers and the like, man-machine display interfaces of industrial automation industry and the like.
The touch screen can be divided into: an external touch screen (Add on Mode Touch Panel), a cover surface touch screen (On Cell Touch Panel), and an in-cell touch screen (In Cell Touch Panel). The embedded touch screen is characterized in that the touch electrode of the touch screen is arranged in the display panel, and compared with an externally hung touch screen and a covered surface type touch screen, the embedded touch screen can reduce the overall thickness of the module and greatly reduce the manufacturing cost of the touch screen. In the existing embedded touch screen, although the touch electrode is integrated into the display panel, the film layer structure is complex, so that the thickness of the display panel is difficult to be further reduced.
Disclosure of Invention
In view of this, the present invention provides a display panel and a display device, which uses a first transparent electrode layer on a surface of a light emitting element far from a substrate as a bridging connection layer of a touch electrode, so as to facilitate simplification of a film structure of the display panel and thickness reduction of the display panel.
In a first aspect, the present application provides a display panel, comprising:
a substrate base;
an array layer located on one side of the substrate base plate;
a light emitting element located at a side of the array layer away from the substrate base plate;
a first transparent electrode layer located on a surface of the light emitting element on a side away from the substrate;
the insulating layer is positioned on one side of the first transparent electrode layer away from the substrate base plate, and comprises a plurality of first through holes which penetrate through the insulating layer along the direction perpendicular to the substrate base plate and expose at least part of the first transparent electrode layer;
the touch electrodes are positioned on one side, far away from the substrate, of the insulating layer, and at least two touch electrodes are electrically connected with the same first transparent electrode layer through the first through holes.
In a second aspect, the present application provides a method for manufacturing a display panel, including:
Providing a substrate base plate;
forming an array layer on one side of the substrate base plate;
a light-emitting element is arranged on one side of the array layer, which is far away from the substrate base plate;
forming a first transparent electrode layer on a surface of a side of the light emitting element away from the substrate base plate;
forming an insulating layer on one side of the first transparent electrode layer away from the substrate base plate;
forming a plurality of first through holes on the insulating layer, wherein the first through holes penetrate through the insulating layer along the direction perpendicular to the substrate base plate and expose at least part of the first transparent electrode layer;
and forming a plurality of touch electrodes on one side of the first transparent electrode layer far away from the substrate base plate, so that at least two touch electrodes are electrically connected with the same first transparent electrode layer through the first via hole.
In a third aspect, the present application further provides a display device, including the display panel provided by the present application.
Compared with the prior art, the display panel, the manufacturing method and the display device provided by the invention have the advantages that at least the following beneficial effects are realized:
in the display panel, the manufacturing method thereof and the display device provided by the invention, the first transparent electrode layer is introduced into the surface of one side of the light-emitting element far away from the substrate, and a plurality of first through holes are arranged on the insulating layer arranged on one side of the first transparent electrode layer far away from the substrate, and the first through holes penetrate through the insulating layer along the direction vertical to the substrate and expose at least part of the first electrode layer. According to the method, the insulating filling layer is not arranged on the surface of the light-emitting element far away from the substrate, but the first transparent electrode layer is directly arranged, the touch electrode is isolated from the first transparent electrode layer by the insulating layer, at least two touch electrodes in the method are electrically connected with the same first transparent electrode layer through the first through hole, the first transparent electrode layer arranged on the surface of the side of the light-emitting element far away from the substrate is used as a bridging connecting layer of the touch electrode, compared with the mode that the insulating filling layer is firstly arranged on the side of the light-emitting element far away from the substrate, and then the touch layer is manufactured on the side of the insulating filling layer far away from the light-emitting element, the insulating filling layer with larger thickness is arranged between the touch layer and the light-emitting element in the prior art is omitted, and the film structure of the touch electrode is introduced into the display panel is greatly simplified, so that the thickness of the display panel is further reduced, and the thin requirement of the display panel is met.
Of course, it is not necessary for any one product embodying the invention to achieve all of the technical effects described above at the same time.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a cross-sectional view of a prior art display panel;
fig. 2 is a top view of a display panel according to an embodiment of the present disclosure;
FIG. 3 is a cross-sectional view of the display panel of FIG. 2, shown in AA';
fig. 4 is a top view of a touch electrode in a display panel according to an embodiment of the disclosure;
FIG. 5 is a cross-sectional view of an AA' of the display panel of FIG. 2;
fig. 6 is a top view of a first transparent electrode layer and a first via hole in a display panel according to an embodiment of the disclosure;
fig. 7 is a schematic structural diagram of a light emitting device in a display panel according to an embodiment of the present disclosure;
FIG. 8 is a cross-sectional view of a BB' of the display panel of FIG. 2;
FIG. 9 is a cross-sectional view of the display panel of FIG. 2;
FIG. 10 is a diagram showing a relative positional relationship between a light emitting device and an auxiliary via;
FIG. 11 is a flowchart illustrating a method for fabricating a display panel according to an embodiment of the present disclosure;
fig. 12 is a schematic diagram of a display device according to an embodiment of the present application.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Fig. 1 is a cross-sectional view of a display panel 300 in the prior art, where the display panel 300 is a touch display panel, the touch display panel includes a substrate 301, a light emitting element 303, and a touch layer 304, a first insulating filling layer 308 is disposed on a side of the light emitting element 303 away from the substrate 301, a surface of the first insulating filling layer 308 away from the light emitting element 303 forms a planarized surface, and the touch layer 304 is located on the surface of the first insulating filling layer 308 away from the substrate 301. The touch layer 304 includes a first electrode layer 305, a second electrode layer 307, and a second insulating filling layer 306 between the first electrode layer 305 and the second electrode layer 307, where the first electrode layer 305 is located on a side of the second insulating filling layer 306 away from the substrate 301. As can be seen, when the touch layer 304 is integrated in the display panel 300 in the prior art, two insulating filling layers are required to be formed between the first electrode layer 305 and the light emitting element 303, and since the first insulating filling layer 308 is required to form a planarized surface on the side of the light emitting element 303 away from the substrate 301, the thickness of the first insulating filling layer 308 is required to be greater than the thickness of the light emitting element 303 along the direction perpendicular to the substrate 301, so that it is difficult to further reduce the overall thickness of the display panel 300 after the touch layer 304 is introduced.
In view of this, the present invention provides a display panel and a display device, which uses a first transparent electrode layer on a surface of a light emitting element far from a substrate as a bridging connection layer of a touch electrode, so as to facilitate simplification of a film structure of the display panel and thickness reduction of the display panel.
The invention will be described in detail below with reference to the drawings and the specific embodiments.
Fig. 2 is a top view of a display panel according to an embodiment of the present application, fig. 3 is a cross-sectional view AA' of the display panel of fig. 2, and referring to fig. 2 and 3, a display panel 100 according to the present application includes:
a substrate base 10;
an array layer 20 located at one side of the substrate base plate 10;
a light emitting element 30 located at a side of the array layer 20 away from the substrate base plate 10;
a first transparent electrode layer 41 on a surface of the light emitting element 30 on a side away from the substrate base plate 10;
an insulating layer 50 located on a side of the first transparent electrode layer 41 away from the substrate 10, the insulating layer 50 including a plurality of first vias 61, the first vias 61 penetrating the insulating layer 50 in a direction perpendicular to the substrate 10 and exposing at least a portion of the first transparent electrode layer 41;
the plurality of touch electrodes 51 are located on a side of the first transparent electrode layer 41 away from the substrate 10, and at least two touch electrodes 51 are electrically connected to the same first transparent electrode layer 41 through the first via hole 61.
It should be noted that, fig. 2 only schematically illustrates one shape of the display panel 100, and in some other embodiments of the present application, the display panel 100 may be implemented as a circle, an ellipse, or other special-shaped structures, and the shape of the display panel 100 is not specifically limited herein. The light emitting elements 30 shown in fig. 2 on the display panel are also merely schematic, and do not represent actual sizes, numbers, and shapes. In order to clearly embody the present invention, only the light emitting element 30 and the substrate 10 are shown in the plan view of fig. 2, and other components are not shown. The cross-sectional view shown in fig. 3 is also only illustrative of the film layers relevant to the present invention and does not represent the actual structure of each film layer, for example, the array layer 20 may comprise a plurality of different layer disposed metal film layers, which are not shown in detail herein. Fig. 3 is also merely a schematic diagram of the relative positional relationship of the respective film layers, and does not represent the actual dimensions.
Specifically, referring to fig. 2 and 3, in the display panel 100 provided by the present invention, the first transparent electrode layer 41 is introduced on the surface of the side of the light emitting element 30 away from the substrate 10, and the insulating layer 50 disposed on the side of the first transparent electrode layer 41 away from the substrate 10 is provided with a plurality of first vias 61, and the first vias 61 penetrate through the insulating layer 50 in the direction perpendicular to the substrate 10 and expose at least a portion of the first transparent electrode layer 41. According to the method, the surface of the light-emitting element 30 far away from the substrate 10 is not provided with the insulating filling layer, but the first transparent electrode layer 41 is directly provided, the touch electrode 51 is isolated from the first transparent electrode layer 41 by the insulating layer 50, at least two touch electrodes 51 in the method are electrically connected with the same first transparent electrode layer 41 through the first through hole 61, the first transparent electrode layer 41 arranged on the surface of the side of the light-emitting element 30 far away from the substrate 10 is used as a bridging connecting layer of the touch electrode 51, compared with the mode that the insulating filling layer is firstly arranged on the side of the light-emitting element 30 far away from the substrate 10, and then the touch layer is manufactured on the side of the insulating filling layer far away from the light-emitting element 30, the insulating filling layer with larger thickness is arranged between the touch layer and the light-emitting element in the prior art, and the film structure of the display panel 100 after the touch electrode 51 is introduced is greatly simplified, so that the thickness of the display panel 100 is further thinned, and the requirement of the display panel 100 is met.
Fig. 4 is a top view of a touch electrode in a display panel 100 according to an embodiment of the present application, referring to fig. 4, optionally, the display panel 100 includes a plurality of first touch units 70 and a plurality of second touch units 80 disposed on the same layer, and the first touch units 70 and the second touch units 80 are insulated from each other; the first touch unit 70 includes a plurality of first touch electrodes 71, and each first touch electrode 71 in the same first touch unit 70 is arranged along a first direction; the second touch unit 80 includes a plurality of second touch electrodes 81, and each second touch electrode 81 in the same second touch unit 80 is arranged along a second direction, and the first direction and the second direction intersect;
the touch electrode 51 mentioned in the present application includes the first touch electrode 71 and the second touch electrode 81; in the same first touch unit 70, two first touch electrodes 71 adjacent along the first direction are electrically connected to the same first transparent electrode layer 41 through the first via hole 61; in the same second touch unit 80, two second touch electrodes 81 adjacent along the second direction are electrically connected through a connection portion 82, and the connection portion 82 and the second touch electrodes 81 are arranged in the same layer.
Specifically, fig. 4 shows an embodiment in which the mutual capacitive touch electrode 51 is disposed in the display panel 100, optionally, the first touch unit 70 is used as a touch driving unit, the second touch unit 80 is used as a touch sensing unit, and in the touch stage of the display panel 100, when the touch body touches the display panel 100, a coupling capacitance is formed between the touch body and the touch sensing unit and the touch driving unit, so that the coupling capacitance between the touch driving unit and the touch sensing unit is reduced, and the touch position can be known according to the variation of the coupling capacitance between the touch sensing unit and the touch driving unit. In the present invention, the first touch unit 70 and the second touch unit 80 are disposed on the same layer, and are specifically shown as a film layer where the touch electrode 51 is disposed in fig. 3. The first touch unit 70 includes a plurality of first touch electrodes 71 electrically connected to each other, and the second touch unit 80 includes a plurality of second touch electrodes 81 electrically connected to each other. In the same first touch unit 70, two first touch electrodes 71 adjacent along the first direction are electrically connected to the same first transparent electrode layer 41 through the first via hole 61 as shown in fig. 3 and 4; in the same second touch unit 80, two second touch electrodes 81 adjacent along the second direction are electrically connected through a connection portion 82, and the connection portion 82 is arranged in the same layer as the first touch electrode 71 and the second touch electrode 72. Referring to fig. 3 and 4, the front projection of the connection portion 82 on the plane of the substrate 10 intersects with the front projection of the first transparent electrode layer 41 on the plane of the substrate 10. According to the method, the first transparent electrode layer 41 is used as a bridging connection layer of the first touch electrode 71 in the first touch unit 70, so that the possibility that the touch function cannot be normally realized due to the fact that the first touch unit 70 and the second touch unit 80 are electrically connected when the first touch unit 70 and the second touch unit 80 are arranged in the same layer is effectively avoided, and moreover, the touch performance of the display panel 100 can be guaranteed, and the production yield of products is improved.
In an alternative embodiment of the present invention, fig. 5 is a cross-sectional view of AA' of the display panel 100 in fig. 2, where the display panel 100 further includes a second transparent electrode layer 42, the second transparent electrode layer 42 is located on a surface of the array layer 20 away from the substrate 10, and an orthographic projection of the second transparent electrode layer 42 on the substrate 10 is located between orthographic projections of two adjacent light emitting elements 30 on a plane of the substrate 10; the second transparent electrode layer 42 is insulated from the first transparent electrode layer 41.
Referring to fig. 5, in the surface of the side of the array substrate away from the substrate 10, the portion where the light emitting elements 30 are not disposed introduces the second transparent electrode layer 42, and the second transparent electrode layer 42 is located between the orthographic projections of two adjacent light emitting elements 30 on the plane of the substrate 10 as seen in the cross-sectional structure shown in fig. 5, and the first transparent electrode layer 41 and the second transparent electrode layer 42 are disconnected, and the introduction of the second transparent electrode layer 42 does not affect the bridging connection between the two touch electrodes 51. Furthermore, the second transparent electrode layer 42 is introduced on the surface of the array layer 20, which is far from the substrate 10, and the second transparent electrode layer 42 can also play a certain role in protecting the array layer 20.
In an alternative embodiment of the present invention, with continued reference to fig. 5, a second transparent electrode layer 42 on the surface of the array layer 20 on the side remote from the substrate 10 is connected to a fixed potential to form a shielding layer.
Generally, the array layer 20 of the display panel 100 is provided with a transistor and a signal trace structure, and during the display process of the display panel 100, electrical signals exist on the transistor and the signal trace; during the touch process of the display panel 100, an electrical signal is also present on the touch electrode 51. When the second transparent electrode layer 42 positioned on one side surface of the array layer 20 far away from the substrate 10 is connected with a fixed potential, the second transparent electrode layer 42 forms a shielding layer, and the shielding layer isolates the touch electrode 51 from the array layer 20 in the direction perpendicular to the plane of the substrate 10, so that mutual interference between the electric signal of the array layer 20 and the electric signal on the touch electrode 51 is avoided, and the touch reliability of the display panel 100 in the touch stage is improved, and the display reliability of the display panel 100 in the display stage is improved.
In an alternative embodiment of the present invention, please continue to refer to fig. 5, the second transparent electrode layer 42 and the first transparent electrode layer 41 are disposed in the same layer and material.
Specifically, the arrangement of the second transparent electrode layer 42 and the first transparent electrode layer 41 in the same layer in the present application means that the two are manufactured simultaneously in the same production process, and does not represent that the two are located at the same height, in the present application, since the surface of the side of the array layer 20 away from the substrate 10 is a planar structure, when the light emitting element 30 is arranged on the surface of the side of the array layer 20 away from the substrate 10, the surface of the light emitting element 30 away from the substrate 10 and the surface of the side of the array layer 20 away from the substrate 10 are different in height, that is, under the view angle shown in fig. 5, the surface of the light emitting element 30 away from the substrate 10 is higher than the surface of the array layer 20 away from the substrate 10, and when the first transparent electrode layer 41 and the second transparent electrode layer 42 are manufactured simultaneously in the same production process, the first transparent electrode layer 41 and the second transparent electrode layer 42 formed in the same layer will be located on the surface of the light emitting element 30 away from the array layer 20 and the surface of the array layer 20 away from the substrate 10, respectively. In the invention, when the first transparent electrode layer 41 and the second transparent electrode layer 42 are arranged in the same material, independent manufacturing procedures are not required to be respectively introduced into the first transparent electrode layer 41 and the second transparent electrode layer 42, and the first transparent electrode layer 41 and the second transparent electrode layer 42 can be manufactured and formed simultaneously in the same production procedure, so that the display reliability and the touch reliability of the display panel 100 are improved by introducing the second transparent electrode layer 42 as a shielding layer, the production procedure of the display panel 100 is simplified, and the production efficiency of the display panel 100 is improved.
It should be noted that the drawings of the present invention are only for simplicity of illustration of the array layer 20, and do not represent an actual film structure of the array layer, in fact, the array layer 20 may include a plurality of metal film layers and an insulating layer, and the metal film layers may include, for example, a first metal layer and a second metal layer disposed in an insulating manner. The array layer 20 is typically provided with a plurality of thin film transistors, optionally with gates of the thin film transistors being located on a first metal layer and sources and drains of the thin film transistors being located on a second metal layer, the second metal layer being located on a side of the first metal layer remote from the substrate. Optionally, the array layer further includes a passivation layer or a planarization layer, where the passivation layer or the planarization layer is located on a side of the second metal layer away from the substrate, and a surface of the side of the array layer 20 away from the substrate 10 referred to herein refers to a surface of the passivation layer or the planarization layer in the array layer away from the substrate.
In an alternative embodiment of the invention, the first transparent electrode layer 41 comprises indium tin oxide. Indium tin oxide is also called ITO (Indium Tin Oxides), is nano indium tin metal oxide with good conductivity and light transmittance, and optionally, in doped with Sn is used for the first transparent electrode layer 41 and the second transparent electrode layer 42 2 O 3 The film has light transmittance up to 90% and excellent conductivity. Therefore, when the first transparent electrode layer 41 with better conductivity is introduced, the reliability of electrical connection between the touch electrodes 51 is improved, and the overall transmittance of the display panel 100 in the application is improved due to the higher transmittance of the first transparent electrode layer 41 and the second transparent electrode layer 42.
In the present inventionWith continued reference to fig. 5, in a direction perpendicular to the base substrate 10, the first transparent electrode layer 41 has a thickness D0,
specifically, the present application sets the thickness of the first transparent electrode layer 41 to
When D0 is equal to or less than 0.1 μm and equal to or less than 0.2 μm. In general, the height of the light emitting element 30 in the direction perpendicular to the substrate 10 is about 10 μm, that is, the thickness of the first transparent electrode layer 41 and the second transparent electrode layer 42 in the direction perpendicular to the substrate 10 will be much smaller than the height of the light emitting element 30, and when the first transparent electrode layer 41 and the second transparent electrode layer 42 are simultaneously manufactured in the same manufacturing process, since the difference in height between the surface of the light emitting element 30 away from the substrate 10 and the surface of the array layer 20 away from the substrate 10 is much larger than the thickness of the first transparent electrode layer 41 and the second transparent electrode layer 42, the first transparent electrode layer 41 located on the surface of the light emitting element 30 away from the substrate 10 and the second transparent electrode layer 42 located on the surface of the array layer 20 away from the substrate 10 will inevitably break without forming an electrical connection, so that it is advantageous to ensure that the introduction of the second transparent electrode layer 42 will not affect the reliability of the electrical connection between the touch electrodes 51 when the first transparent electrode layer 41 is used as a bridging connection layer.
Further, the present application sets the thickness D0 of the first transparent electrode layer 41 to be equal to or greater
In this case, the thickness of the first transparent electrode layer 41 is advantageously reduced to avoid influencing the conductivity of the first transparent electrode layer 41, thereby improving the reliability of the electrical connection between the touch electrodes 51 when the first transparent electrode layer 41 is used as a bridging layer. Furthermore, the present application will apply to the first transparent electrode layer 41Thickness D0 is set to be equal to or less than +.>
In this case, it is advantageous to prevent the light transmittance of the first transparent electrode layer 41 from being reduced due to the excessive thickness of the first transparent electrode layer 41, which may affect the light transmittance of the display panel 100, thereby improving the light transmittance when the first transparent electrode layer 41 and the second transparent electrode layer 42 are introduced into the display panel 100.
In an alternative embodiment of the present invention, fig. 6 is a top view of the first transparent electrode layer 41 and the first via hole 61 in the display panel 100 provided in the embodiment of the present application, and the light emitting element is not shown, and in fact, the light emitting element overlaps the first transparent electrode layer 41 in a top view structure. Referring to fig. 6, at least two first vias 61 expose two ends of the same first transparent electrode layer 41, and two touch electrodes 51 are connected to two ends of the same first transparent electrode layer 41 through the first vias 61.
Specifically, referring to fig. 5 and 6, the front projections of the two first vias 61 on the plane of the substrate 10 are located within the range defined by the front projections of the same light emitting device 30 on the plane of the substrate 10 and located at two ends of the entire projection of the same light emitting device 30 on the plane of the substrate 10, that is, the first transparent electrode layer 41 on one light emitting device 30 corresponds to the two first vias 61. The two first vias 61 expose two ends of the same first transparent electrode layer 41, and the two touch electrodes 51 are electrically connected to two ends of the same first transparent electrode layer 41 through the first vias 61, respectively, so that electrical connection between the two touch electrodes 51 is achieved. In addition, when the two first vias 61 are disposed on both ends of the front projection of the substrate 10 on the entire projection of the same light emitting element 30 on the plane of the substrate 10, the positions of the two first vias 61 can be determined by taking the edges of both ends of the light emitting element 30 as a reference during the formation of the first vias 61 on the insulating layer 50, so that the accuracy of the position setting of the first vias 61 is improved.
In an alternative embodiment of the present invention, fig. 7 is a schematic structural diagram of a light emitting element 30 in a display panel 100 provided in the embodiment of the present application, referring to fig. 7, the light emitting element 30 includes a light emitting body 33 and a first electrode 31 and a second electrode 32 electrically connected to the light emitting body 33, where the first electrode 31 and the second electrode 32 are located on a side of the light emitting body 33 facing a substrate; referring to fig. 6, the front projections of the first vias 61 corresponding to the same light emitting element 30 on the substrate 10 are arranged along the length direction of the light emitting element 30.
Specifically, referring to fig. 7, the light emitting element 30 includes a light emitting body 33 and a first electrode 31 and a second electrode 32 electrically connected to the light emitting body 33, and optionally, the light emitting body 33 includes a P-type semiconductor layer, an N-type semiconductor layer, and a light emitting layer (not shown) located between the P-type semiconductor layer and the N-type semiconductor layer, wherein the P-type semiconductor layer is electrically connected to the first electrode 31, the N-type semiconductor layer is electrically connected to the N-type semiconductor layer, a voltage signal is provided to the P-type semiconductor layer and the N-type semiconductor layer of the light emitting body 33 through the first electrode 31 and the second electrode 32, and the P-type semiconductor layer and the N-type semiconductor layer are driven by the voltage signal to cause the light emitting layer to emit light, thereby realizing the light emission of the light emitting element 30. Referring to fig. 6 and 7, alternatively, the orthographic projection of the light emitting element 30 on the plane of the substrate 10 is a rectangular structure, and the first electrode 31 and the second electrode 32 in the light emitting element 30 are arranged along the length direction of the rectangular structure. In particular, when the first via hole 61 corresponding to the light emitting element 30 of the first electrode and the second electrode is arranged in the length direction of the light emitting element 30 by the orthographic projection of the substrate 10, the space in the length direction of the light emitting element 30 is larger than the space in the width direction, so when the first via hole 61 is arranged in the length direction of the light emitting element 30, the first via hole 61 corresponding to the same light emitting element 30 has more arrangement space in the arrangement direction, and the influence on the reliability of the electrical connection between the touch electrode 51 and the first transparent electrode layer 41 due to the smaller size of the first via hole 61 caused by the smaller arrangement space is avoided. Therefore, the arrangement manner can provide a larger space for the arrangement of the first via hole 61, thereby being beneficial to increasing the size of the first via hole 61, improving the reliability of the electrical connection between the touch electrode 51 and the first transparent electrode layer 41, and further improving the touch reliability of the touch electrode 51.
In an alternative embodiment of the present invention, please refer to fig. 6, the minimum aperture of the first via 61 is D1, D1 is not less than 5 μm. Considering that the aperture of the first via hole 61 may not be fixed, for example, the aperture of the first via hole 61 is gradually changed from the side close to the first transparent electrode layer 41 to the side far from the first transparent electrode layer 41 in fig. 5, the aperture of the first via hole 61 is gradually increased, and a portion corresponding to the minimum aperture of the first via hole 61 is in contact with the first transparent electrode layer 41, and thus, the size of the minimum aperture is closely related to the reliability of the electrical connection between the electrode layer and the first transparent electrode layer 41.
Specifically, the present application sets the minimum aperture of the first via hole 61 corresponding to the light emitting element 30 to be 5 μm or more, which is advantageous in avoiding that the aperture of the first via hole 61 is too small to reduce the reliability of the electrical connection between the touch electrode 51 and the first transparent electrode layer 41. In addition, when the orthographic projection of the light emitting element 30 to the substrate base 10 is square, the individual light emitting element 30 is set to 25 μm and more in length and 10 μm and more in width. When the minimum aperture of the first via holes 61 is set to 5 μm or more, the arrangement space of the two first via holes 61 in the width direction of the light emitting element 30 will be insufficient, and only the aperture of the first via holes can be compressed; however, the two first vias 61 have enough arrangement space along the length direction of the light emitting element, so that the first vias are arranged along the length direction of the light emitting element, which not only meets the arrangement requirement of the at least two first vias 61 on the same first transparent electrode layer 41, but also facilitates the reliable electrical connection between the touch electrode 51 and the first transparent electrode layer 41, thereby improving the touch reliability of the display panel 100.
In an alternative embodiment of the present invention, fig. 8 is a cross-sectional view of a BB' of the display panel 100 in fig. 2, please refer to fig. 8, the insulating layer 50 further includes a plurality of second vias 62, the second vias 62 penetrate the insulating layer 50 along a direction perpendicular to the substrate 10 and expose at least a portion of the first transparent electrode layer 41; the orthographic projection of each second via hole 62 corresponding to the same transparent electrode layer on the substrate 10 is located in the orthographic projection range of the same touch electrode 51 on the substrate 10.
Specifically, fig. 8 shows a case where the insulating layer 50 is provided with the second via hole 62, where the second via hole 62 is different from the first via hole 61 in that the front projection of the second via hole 62 on the substrate 10 is located within the front projection range of the same touch electrode 51 on the substrate 10, and the front projections of the two first via holes 61 corresponding to the same light emitting element 30 on the substrate 10 are respectively located within the front projection range of different touch electrodes 51 on the substrate 10 (see fig. 5), that is, the first via holes 61 are used to electrically connect the same first transparent electrode layer 41 between the two different touch electrodes 51, and the second via holes 62 are only used to connect the same touch electrode 51. Assuming that only the first via hole 61 is provided on the insulating layer 50, the first via hole 61 is used to electrically connect the two touch electrodes 51 and the first transparent electrode layer 41, and there is a case where a portion of the light emitting element 30 does not include a via hole at a corresponding position. When the first via hole 61 is correspondingly disposed above the part of the light emitting elements 30 (on the side far from the substrate 10), and the first via hole 61 is not disposed above the part of the light emitting elements 30, the light transmittance between the light emitting elements 30 disposed with the first via hole 61 and the light emitting elements 30 not disposed with the via hole will be different when the display panel 100 emits light, and thus a phenomenon of uneven brightness may occur on the display panel 100. In this application, when the second via hole 62 is introduced above a portion of the light emitting elements 30, it is beneficial to improve the uneven brightness of the display panel 100 when the light emitting elements 30 emit light, so as to improve the display effect of the display panel 100. In addition, the second via hole 62 is introduced above the partial light emitting element 30, so that when the partial touch electrode 51 and the first transparent electrode layer 41 are electrically connected through the second via hole 62, the parallel connection of the touch electrode 51 and the first transparent electrode layer 41 is equivalent, thereby being beneficial to reducing the impedance of the touch electrode 51 and improving the touch sensitivity of the touch electrode 51.
In an alternative embodiment of the present invention, the insulating layer 50 further includes a plurality of third vias 63, the third vias 63 penetrating the insulating layer 50 in a direction perpendicular to the substrate base plate 10 and exposing at least a portion of the first transparent electrode layer 41; the orthographic projection of each third via 63 on the substrate 10 and the orthographic projection of the touch electrode 51 on the substrate 10 do not overlap.
Specifically, fig. 9 is a cross-sectional view of a CC' of the display panel 100 in fig. 2, in which a third via 63 is introduced into the insulating layer 50, and the third via 63 is different from the first via 61 and the second via 62 in that the front projection of the third via 63 on the substrate 10 is not overlapped with the front projection of the touch electrode 51, and the front projections of the first via 61 and the second via 62 on the substrate 10 are overlapped. Considering that when the touch electrode 51 is introduced on the display panel 100, the front projection of the touch electrode 51 on the substrate 10 does not necessarily cover the front projection of all the light emitting elements 30 on the substrate 10, that is, a portion of the light emitting elements 30 may not be provided with the touch electrode 51, for example, the light emitting elements 30 shown in fig. 9 are not provided with the touch electrode, when the portion of the light emitting elements 30 is not provided with the via hole, the brightness displayed on the display panel 100 is different when the portion of the light emitting elements 30 emits light and the light emitting elements 30 provided with the via hole emit light, so that the display panel 100 may also be caused to have a phenomenon of uneven display brightness, and therefore, when the third via hole 63 is also introduced above the portion of the light emitting elements 30, the present application is also beneficial to improve the phenomenon of uneven brightness of the display panel 100 when the light emitting elements 30 are also introduced above the portion of the light emitting elements 30, and is beneficial to improve the display effect of the display panel 100.
In an alternative embodiment of the present invention, please refer to fig. 5, 8, 9 and 10, wherein fig. 10 is a diagram showing a relative positional relationship between the light emitting element 30 and the auxiliary via 60, and it should be noted that, for clearly showing the relationship between the light emitting element 30 and the auxiliary via 60, the first transparent electrode layer on the light emitting element 30 is not shown in fig. 10. The insulating layer 50 includes a plurality of auxiliary vias 60, and the auxiliary vias 60 include the first via 61, the second via 62, and the third via 63, and auxiliary vias are provided on the surface of the first transparent electrode layer 41 corresponding to each light emitting element 30, which is away from the substrate 10.
Specifically, the first via hole 61, the second via hole 62 and the third via hole 63 are collectively referred to as auxiliary via holes, and when the auxiliary via holes 60 are disposed on the side of the first transparent electrode layer 41 corresponding to each light emitting element 30, which is far away from the substrate 10, the light emitted by each light emitting element 30 will pass through the auxiliary via holes 60 when the light emitting element 30 emits light, so that the brightness of the display panel 100 in the area corresponding to each light emitting element 30 is balanced, and the uniformity of the display brightness of the display panel 100 is improved.
In an alternative embodiment of the present invention, please continue to refer to fig. 10, the number of auxiliary vias 60 corresponding to each light emitting element 30 is the same. Specifically, when the same number of auxiliary vias 60 are disposed above each light emitting element 30, two auxiliary vias corresponding to each light emitting element 30 are shown in fig. 10, and light emitted by each light emitting element 30 is emitted after passing through the same number of auxiliary vias, so that brightness of the display panel 100 in the area corresponding to each light emitting element 30 is further balanced, uniformity of display brightness of the display panel 100 is further improved, and display effect of the display panel 100 is improved.
It should be noted that, in the embodiment shown in fig. 10, two auxiliary vias corresponding to each light emitting element 30 are shown, and two auxiliary vias corresponding to the same light emitting element 30 are respectively disposed at two ends of the light emitting element 30 along the length direction thereof, and in some other embodiments of the present application, the number of auxiliary vias corresponding to the same light emitting element 30 may be 3 or more, which is not particularly limited in this application. When more than two first vias 61 are disposed above the same light emitting element 30, it is beneficial to improve the reliability of the electrical connection between the touch electrode 51 and the same first transparent electrode layer; when more than two second vias 62 are disposed above the same light emitting device 30, it is beneficial to further reduce the impedance of the touch photo-electrode and improve the touch sensitivity of the touch electrode.
In an alternative embodiment of the present invention, please continue to refer to fig. 10, the shape and area of the orthographic projection of the auxiliary via 60 on the substrate base 10 are the same. When the number, shape and area of the auxiliary vias 60 arranged above the light emitting elements 30 are all set to be the same, the film layer structures above the light emitting elements 30 are the same, so that the phenomenon that the display brightness of the display panel is uneven in the corresponding areas of different light emitting elements 30 due to the differential design of the film layers above the light emitting elements 30 is avoided, the uniformity of the display brightness of the display panel is further improved, and the display effect of the display panel is improved.
In an alternative embodiment of the present invention, the light emitting element 30 is a Micro LED, mini LED or a compound LED. The composite LED in the present application refers to a combined structure of at least two LEDs, where the LEDs may be Micro LEDs or Mini LEDs, for example. When the composite LEDs are disposed on the array layer 20, the sides of the LEDs located in the same composite LED away from the array layer 20 are coplanar, so that the area of the composite LED away from the surface of the array layer 20 is larger than that of a single LED, and thus, there is enough space above the composite LED to dispose the auxiliary via holes, which is beneficial to improving the reliability of the electrical connection between the two touch electrodes 51 and the first transparent electrode layer 41, reducing the impedance of the touch electrodes 51, and improving the touch sensitivity of the touch electrodes 51. In addition, since the Micro LED and the Mini LED have the characteristics of high display brightness, good luminous efficiency and low power consumption, when the Micro LED and the Mini LED are applied to the display panel 100, the Micro LED and the Mini LED are beneficial to improving the display brightness and the luminous efficiency of the display panel 100 and reducing the power consumption of the display panel 100.
Based on the same inventive concept, the present application further provides a method for manufacturing the display panel 100 according to any of the foregoing embodiments, please refer to fig. 11 and fig. 3, wherein fig. 11 is a flowchart of the method for manufacturing the display panel 100 according to the embodiment of the present application, and the method includes:
S1, providing a substrate base plate 10;
s2, forming an array layer 20 on one side of the substrate 10;
s3, arranging a light-emitting element 30 on one side of the array layer 20 away from the substrate 10;
s4, forming a first transparent electrode layer 41 on the surface of the side of the light-emitting element 30 away from the substrate 10;
s5, forming an insulating layer 50 on the side of the first transparent electrode layer 41 away from the substrate base plate 10;
s6, forming a plurality of first through holes 61 on the insulating layer 50, wherein the first through holes 61 penetrate through the insulating layer 50 along the direction perpendicular to the substrate 10 and expose at least part of the first transparent electrode layer 41;
s7, forming a plurality of touch electrodes 51 on a side of the first transparent electrode layer 41 away from the substrate 10, and electrically connecting at least two touch electrodes 51 with the same first transparent electrode layer 41 through the first via hole 61.
Specifically, referring to fig. 3 and 11, in the manufacturing method of the display panel 100 provided in the present application, after the light emitting element 30 is disposed on the side of the array layer 20 away from the substrate 10, the first transparent electrode layer 41 is not disposed on the surface of the light emitting element 30 away from the array layer 20, but the first transparent electrode layer 41 is directly disposed, and the touch electrode 51 and the first transparent electrode layer 41 are isolated by the insulating layer 50, at least two touch electrodes 51 are electrically connected with the same first transparent electrode layer 41 through the first via hole 61, which is equivalent to using the first transparent electrode layer 41 disposed on the side of the light emitting element 30 away from the substrate 10 as a bridge connection layer of the touch electrode 51.
Alternatively, in the step S3, referring to fig. 3, when the light emitting element 30 is disposed on the side of the array layer 20 away from the substrate 10, a height difference is formed between the surface of the light emitting element 30 away from the substrate 10 and the surface of the array layer 20 away from the substrate 10 in a direction perpendicular to the substrate 10;
in the above step S4, the first transparent electrode layer 41 is formed on the surface of the light emitting element 30 on the side away from the substrate 10, specifically:
a transparent electrode layer is formed on the surface of the light emitting element 30 and the array layer 20 away from the substrate 10, and the difference in height divides the transparent electrode layer into a first transparent electrode layer 41 and a second transparent electrode layer 42 insulated from each other, wherein the first transparent electrode layer 41 is located on the surface of the light emitting element 30 on the side away from the substrate 10, and the second transparent electrode layer 42 is located on the surface of the array layer 20 away from the substrate 10.
Specifically, since the surface of the side of the array layer 20 away from the substrate 10 is a planar structure, when the light emitting element 30 is disposed on the surface of the side of the array layer 20 away from the substrate 10, the surface of the light emitting element 30 away from the array substrate and the surface of the side of the array layer 20 away from the substrate 10 are provided with a height difference, and when the transparent electrode layer is formed on the surfaces of the light emitting element 30 and the array layer 20 away from the substrate 10, the height difference between the light emitting element 30 and the array layer 20 divides the transparent electrode layer into two parts insulated from each other, a part of which is located on the surface of the side of the light emitting element 30 away from the substrate 10, forming the first transparent electrode layer 41; the other part is located on the surface of the array layer 20 away from the substrate 10 to form the second transparent electrode layer 42, so that the first transparent electrode layer 41 and the second transparent electrode layer 42 are manufactured simultaneously in the same process, and the first transparent electrode layer 41 and the second transparent electrode layer 42 can be manufactured and formed in the same production process without introducing the first transparent electrode layer 41 and the second transparent electrode layer 42 into the manufacturing process respectively, thereby being beneficial to simplifying the production process of the display panel 100 and improving the production efficiency of the display panel 100.
Based on the same inventive concept, the present application further provides a display device 200, and fig. 12 is a schematic diagram of the display device 200 provided in the embodiment of the present application, where the display device 200 includes the display panel 100 provided in any of the embodiments described above. It should be noted that, in the embodiment of the display device 200 provided in the embodiment of the present application, reference may be made to the embodiment of the display panel 100 described above, and the repetition is omitted. The display device 200 provided in the present application may be: any product or component with realistic functions such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
In summary, the display panel, the manufacturing method thereof and the display device provided by the invention at least realize the following beneficial effects:
in the display panel, the manufacturing method thereof and the display device provided by the invention, the first transparent electrode layer is introduced into the surface of one side of the light-emitting element far away from the substrate, and a plurality of first through holes are arranged on the insulating layer arranged on one side of the first transparent electrode layer far away from the substrate, and the first through holes penetrate through the insulating layer along the direction vertical to the substrate and expose at least part of the first electrode layer. According to the method, the insulating filling layer is not arranged on the surface of the light-emitting element far away from the substrate, but the first transparent electrode layer is directly arranged, the touch electrode is isolated from the first transparent electrode layer by the insulating layer, at least two touch electrodes in the method are electrically connected with the same first transparent electrode layer through the first through hole, the first transparent electrode layer arranged on the surface of the side of the light-emitting element far away from the substrate is used as a bridging connecting layer of the touch electrode, compared with the mode that the insulating filling layer is firstly arranged on the side of the light-emitting element far away from the substrate, and then the touch layer is manufactured on the side of the insulating filling layer far away from the light-emitting element, the insulating filling layer with larger thickness is arranged between the touch layer and the light-emitting element in the prior art is omitted, and the film structure of the touch electrode is introduced into the display panel is greatly simplified, so that the thickness of the display panel is further reduced, and the thin requirement of the display panel is met.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (19)
1. A display panel, comprising:
a substrate base;
an array layer located on one side of the substrate base plate;
a light emitting element located at a side of the array layer away from the substrate base plate;
a first transparent electrode layer located on a surface of the light emitting element on a side away from the substrate;
the insulating layer is positioned on one side of the first transparent electrode layer away from the substrate base plate, and comprises a plurality of first through holes which penetrate through the insulating layer along the direction perpendicular to the substrate base plate and expose at least part of the first transparent electrode layer;
the touch electrodes are positioned on one side, far away from the substrate, of the insulating layer, and at least two touch electrodes are electrically connected with the same first transparent electrode layer through the first through holes.
2. The display panel of claim 1, further comprising a second transparent electrode layer, the second transparent electrode layer being located on a surface of the array layer remote from the substrate, and an orthographic projection of the second transparent electrode layer on the substrate being located between orthographic projections of two adjacent light emitting elements on a plane of the substrate;
the second transparent electrode layer is insulated from the first transparent electrode layer.
3. The display panel according to claim 2, wherein the second transparent electrode layer is connected to a fixed potential to form a shielding layer.
4. The display panel according to claim 2, wherein the second transparent electrode layer and the first transparent electrode layer are provided in the same material.
5. The display panel of claim 1, wherein the first transparent electrode layer comprises indium tin oxide.
6. The display panel of claim 1, wherein the first transparent electrode layer has a thickness D0 in a direction perpendicular to the substrate base plate,
7. the display panel according to claim 1, wherein at least two first vias expose both ends of the same first transparent electrode layer, respectively, and two touch electrodes are connected to both ends of the same first transparent electrode layer through the first vias, respectively.
8. The display panel according to claim 7, wherein the light-emitting element includes a light-emitting body and first and second poles electrically connected to the light-emitting body, the first and second poles being located on a side of the light-emitting body facing the substrate;
the orthographic projections of the first through holes corresponding to the same light-emitting element on the substrate base plate are arranged along the length direction of the light-emitting element.
9. The display panel according to claim 1, wherein the minimum aperture of the first via hole is D1, and D1 is not less than 5 μm.
10. The display panel of claim 1, wherein the insulating layer further comprises a plurality of second vias penetrating the insulating layer in a direction perpendicular to the substrate base plate and exposing at least a portion of the first transparent electrode layer; and the orthographic projection of each second via corresponding to the same transparent electrode layer on the substrate is positioned in the orthographic projection range of the same touch electrode on the substrate.
11. The display panel of claim 10, wherein the insulating layer further comprises a plurality of third vias penetrating the insulating layer in a direction perpendicular to the substrate base plate and exposing at least a portion of the first transparent electrode layer; the orthographic projection of each third via hole on the substrate is not overlapped with the orthographic projection of the touch electrode on the substrate.
12. The display panel according to claim 11, wherein the insulating layer includes a plurality of auxiliary vias including the first via, the second via, and the third via, the auxiliary vias being provided at a surface of the first transparent electrode layer corresponding to each of the light emitting elements, which surface is remote from the substrate base plate.
13. The display panel of claim 12, wherein the display panel comprises,
the number of the auxiliary vias corresponding to each light emitting element is the same.
14. The display panel of claim 12, wherein the shape and area of the orthographic projection of the auxiliary via on the substrate are the same.
15. The display panel of claim 1, wherein the light emitting element is a MicroLED, miniLED or a composite LED.
16. The display panel according to claim 1, wherein the display panel includes a plurality of first touch units and a plurality of second touch units disposed in a same layer, the first touch units and the second touch units being insulated from each other; the first touch unit comprises a plurality of first touch electrodes, and the first touch electrodes in the same first touch unit are arranged along a first direction; the second touch unit comprises a plurality of second touch electrodes, each second touch electrode in the same second touch unit is arranged along a second direction, and the first direction and the second direction are crossed;
The touch electrode comprises the first touch electrode and the second touch electrode; in the same first touch unit, two adjacent first touch electrodes along a first direction are electrically connected with the same first transparent electrode layer through the first via hole; in the same second touch unit, two adjacent second touch electrodes along the second direction are electrically connected through a connecting part, and the connecting part and the second touch electrodes are arranged on the same layer.
17. A method of manufacturing the display panel according to any one of claims 1 to 16, comprising:
providing a substrate base plate;
forming an array layer on one side of the substrate base plate;
a light-emitting element is arranged on one side of the array layer, which is far away from the substrate base plate;
forming a first transparent electrode layer on a surface of a side of the light emitting element away from the substrate base plate;
forming an insulating layer on one side of the first transparent electrode layer away from the substrate base plate;
forming a plurality of first through holes on the insulating layer, wherein the first through holes penetrate through the insulating layer along the direction perpendicular to the substrate base plate and expose at least part of the first transparent electrode layer;
and forming a plurality of touch electrodes on one side of the first transparent electrode layer far away from the substrate base plate, so that at least two touch electrodes are electrically connected with the same first transparent electrode layer through the first via hole.
18. The method of claim 17, wherein the step of forming the display panel,
when a light emitting element is arranged on one side of the array layer, which is far away from the substrate, a height difference is formed between the surface of the light emitting element, which is far away from the substrate, and the surface of the array layer, which is far away from the substrate, along the direction perpendicular to the substrate;
forming a first transparent electrode layer on the surface of one side of the light-emitting element far away from the substrate base plate, specifically:
and forming a transparent electrode layer on the surfaces of the light-emitting element and the array layer, which are far away from the substrate, wherein the transparent electrode layer is divided into a first transparent electrode layer and a second transparent electrode layer which are insulated from each other by the height difference, the first transparent electrode layer is positioned on the surface of one side of the light-emitting element, which is far away from the substrate, and the second transparent electrode layer is positioned on the surface of the array layer, which is far away from the substrate.
19. A display device comprising the display panel of any one of claims 1 to 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010356931.0A CN111580695B (en) | 2020-04-29 | 2020-04-29 | Display panel, manufacturing method thereof and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010356931.0A CN111580695B (en) | 2020-04-29 | 2020-04-29 | Display panel, manufacturing method thereof and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111580695A CN111580695A (en) | 2020-08-25 |
| CN111580695B true CN111580695B (en) | 2023-07-04 |
Family
ID=72111843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010356931.0A Active CN111580695B (en) | 2020-04-29 | 2020-04-29 | Display panel, manufacturing method thereof and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111580695B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114115571A (en) * | 2020-08-26 | 2022-03-01 | 深圳市柔宇科技股份有限公司 | Touch display panel and electronic equipment |
| CN114035699B (en) * | 2021-03-10 | 2023-03-28 | 重庆康佳光电技术研究院有限公司 | LED touch chip, preparation method thereof and display device |
| TWI792215B (en) * | 2021-03-11 | 2023-02-11 | 開曼群島商Ｖ 福尼提國際 | Display panel having through-hole via structure and manufacturing method thereof |
| CN114185190B (en) * | 2021-12-06 | 2023-11-24 | 厦门天马微电子有限公司 | Array substrate, display panel and display device |
| CN115117093B (en) * | 2022-06-14 | 2024-09-27 | 厦门天马微电子有限公司 | Display panel, manufacturing method thereof and display device |
| CN115513363B (en) * | 2022-10-09 | 2024-07-23 | 上海天马微电子有限公司 | Display module and display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106547405A (en) * | 2016-11-04 | 2017-03-29 | 上海天马微电子有限公司 | Organic light-emitting display panel, device and manufacturing method |
| CN106569633A (en) * | 2016-10-31 | 2017-04-19 | 上海天马微电子有限公司 | Touch control structure and manufacturing method thereof |
| CN107505793A (en) * | 2017-09-27 | 2017-12-22 | 上海天马微电子有限公司 | Array substrate and display device |
| CN110034168A (en) * | 2019-03-29 | 2019-07-19 | 上海天马微电子有限公司 | Display panel and display device |
| CN110968218A (en) * | 2019-11-12 | 2020-04-07 | 合肥维信诺科技有限公司 | Touch display panel and preparation method thereof |
| CN110989862A (en) * | 2019-11-27 | 2020-04-10 | 合肥维信诺科技有限公司 | Display panel and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742330A (en) * | 2016-03-16 | 2016-07-06 | 京东方科技集团股份有限公司 | Organic light emitting display panel, fabrication method thereof and display device |
-
2020
- 2020-04-29 CN CN202010356931.0A patent/CN111580695B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569633A (en) * | 2016-10-31 | 2017-04-19 | 上海天马微电子有限公司 | Touch control structure and manufacturing method thereof |
| CN106547405A (en) * | 2016-11-04 | 2017-03-29 | 上海天马微电子有限公司 | Organic light-emitting display panel, device and manufacturing method |
| CN107505793A (en) * | 2017-09-27 | 2017-12-22 | 上海天马微电子有限公司 | Array substrate and display device |
| CN110034168A (en) * | 2019-03-29 | 2019-07-19 | 上海天马微电子有限公司 | Display panel and display device |
| CN110968218A (en) * | 2019-11-12 | 2020-04-07 | 合肥维信诺科技有限公司 | Touch display panel and preparation method thereof |
| CN110989862A (en) * | 2019-11-27 | 2020-04-10 | 合肥维信诺科技有限公司 | Display panel and manufacturing method thereof |
Non-Patent Citations (2)
| Title |
|---|
| Chunming Cheng et al.."Virtual Display and Interactive Experience Platform of Farming Culture Based on Unity3D ".IFAC-PapersOnLine.2018,第51卷(第17期),637-642. * |
| 李会丽 ; 魏崇喜 ; 李喜峰 ; .投影曝光技术在柔性折叠屏触控电路制作中的应用与发展.电子元器件与信息技术.2020,(04),全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111580695A (en) | 2020-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111580695B (en) | Display panel, manufacturing method thereof and display device | |
| CN107342370B (en) | Display panel and display device | |
| US10705367B2 (en) | Touch display panel having touch line formed on the same layer as the gate line | |
| US10672566B2 (en) | Touch window having improved electrode pattern structure | |
| CN102760010B (en) | Touch display panel and touch liquid crystal display panel | |
| CN204028859U (en) | Touch panel | |
| CN109857279B (en) | Display panel and display device | |
| CN106293258A (en) | Organic light-emitting display panel | |
| CN111625119B (en) | Touch screen and display device | |
| TW201416941A (en) | Touch panel | |
| US11842019B2 (en) | Touch substrate and display panel | |
| CN111384136B (en) | Display panel and display device | |
| US10768753B2 (en) | Touch display panel, display device and touch panel | |
| CN113010042B (en) | Touch display panel | |
| WO2024032593A1 (en) | Display device and touch structure | |
| CN103631413A (en) | Touch screen and touch-controlled display device | |
| CN111158533B (en) | Detection substrate and display device | |
| US20240029629A1 (en) | Display panel and mobile terminal | |
| US11561634B2 (en) | Display module, fabrication method thereof and display device | |
| CN107003767A (en) | Location input device and the display device with position input function | |
| CN104699290A (en) | Touch panel | |
| US20140320441A1 (en) | Touch panel and electric device | |
| TWI416924B (en) | Touch-control display panel, display device and mobile phone using same | |
| CN111580702A (en) | Display panel and display device | |
| US20210200353A1 (en) | Display screen and electronic device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |