CN113157140A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN113157140A CN113157140A CN202110562936.3A CN202110562936A CN113157140A CN 113157140 A CN113157140 A CN 113157140A CN 202110562936 A CN202110562936 A CN 202110562936A CN 113157140 A CN113157140 A CN 113157140A
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- 239000000758 substrate Substances 0.000 claims abstract description 69
- 238000005538 encapsulation Methods 0.000 claims description 40
- 238000004806 packaging method and process Methods 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 11
- 239000010410 layer Substances 0.000 description 280
- 239000000463 material Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 239000004642 Polyimide Substances 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 239000011368 organic material Substances 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 229920001721 polyimide Polymers 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 229910004205 SiNX Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 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
- G06F3/0412—Digitisers structurally integrated in a display
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
An embodiment of the present invention provides a display panel and a display device, where the display panel includes: display area and the setting are in the non-display area of display area periphery, and the non-display area includes: a substrate; the common electrode layer and the flat layer are arranged on one side of the substrate; the flat layer is arranged close to the display area; the common electrode layer is arranged on one side, far away from the display area, of the flat layer; the touch wiring layer is arranged on one side, away from the substrate, of the flat layer; and the orthographic projection of the touch wiring layer on the substrate is positioned in the orthographic projection of the flat layer on the substrate. According to the embodiment of the invention, the touch wiring layer is arranged at the corresponding position of the flat layer, so that the problem that the touch wiring layer is short-circuited by metal residues at the fault position of the contact position of the flat layer and the common electrode layer when the touch wiring layer crosses the whole flat layer and the common electrode layer is avoided, and the quality of the display panel is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
An OLED Display panel manufactured by an Organic Light-Emitting diode (OLED) Display technology has the advantages of self-luminescence, high brightness, good picture quality, low energy consumption and the like.
At present, a touch Layer of an OLED display panel adopts an FMLOC (Flexible Multiple Layer on Cell) process design structure. The FMLOC process is to fabricate a metal mesh electrode layer on a package substrate of a display panel to perform touch control. When the touch layer is prepared, a touch wiring layer connected with the touch layer is prepared in a non-display area of the display panel.
At present, the problem of short circuit caused by metal residue at the fault position of the back plate of the touch wiring layer due to the fault of the back plate of the display panel in a non-display area is caused.
Disclosure of Invention
The invention provides a display panel and a display device, which are used for solving the problem that an electrode of the existing display panel with a touch layer is short-circuited.
A first aspect of the present invention provides a display panel comprising: the display panel comprises a display area and a non-display area arranged on the periphery of the display area, wherein the non-display area comprises:
a substrate;
the common electrode layer and the flat layer are arranged on one side of the substrate; the flat layer is arranged close to the display area; the common electrode layer is arranged on one side, far away from the display area, of the flat layer;
the touch wiring layer is arranged on one side, away from the substrate, of the flat layer; and the orthographic projection of the touch wiring layer on the substrate is positioned in the orthographic projection of the flat layer on the substrate.
Optionally, the non-display area further includes:
the first electrode layer is arranged on one side, far away from the substrate, of the common electrode layer;
the second electrode layer is arranged on one side, away from the substrate, of the flat layer;
and the packaging layer is arranged on one side of the second electrode layer, which is far away from the substrate.
Optionally, the encapsulation layer includes at least: the organic light-emitting device comprises a first inorganic packaging layer, a second inorganic packaging layer and an organic packaging layer arranged between the first inorganic packaging layer and the second inorganic packaging layer.
Optionally, a groove is arranged on the flat layer; the groove extends from one side of the flat layer far away from the substrate and towards the substrate; arranging a dummy support column on one side of the flat layer far away from the substrate;
an orthographic projection of the dummy support posts on the planarization layer is between the grooves and the display area.
Optionally, the second electrode layer covers the dummy support pillar; the thickness of the organic encapsulation layer between the first inorganic encapsulation layer and the second inorganic encapsulation layer at the position corresponding to the dummy support column is greater than 5 stress.
Optionally, the non-display area further includes: grounding and routing; the grounding wire is arranged on one side, far away from the substrate, of the first inorganic packaging layer; and the orthographic projection of the grounding wire on the substrate is positioned in the orthographic projection of the common electrode layer on the substrate.
Optionally, a distance between the ground trace and the touch trace layer is greater than 40 μm.
Optionally, a blocking dam is arranged on one side of the first electrode layer away from the substrate; the second electrode layer is arranged on the first electrode layer between the blocking dam and the flat layer; the ground trace is disposed on the first inorganic encapsulation layer between the dam and the planarization layer.
Optionally, the touch routing layer includes: the touch control device comprises a first sub-touch control wiring layer, an insulating layer and a second sub-touch control wiring layer; the first sub-touch routing layer is arranged on the packaging layer; the insulating layer is arranged between the first sub-touch wiring layer and the second sub-touch wiring layer; the second sub-touch wiring layer is arranged on one side, away from the first sub-touch wiring layer, of the insulating layer; the first sub-touch wiring layer comprises a plurality of first wirings arranged in parallel, and the second sub-touch wiring layer comprises a plurality of second wirings arranged in parallel; the first wires and the second wires are in one-to-one correspondence.
A second aspect of the invention provides a display device comprising the display panel described in any one of the above.
An embodiment of the present invention provides a display panel, including: the display panel comprises a display area and a non-display area arranged on the periphery of the display area, wherein the non-display area comprises: a substrate; the common electrode layer and the flat layer are arranged on one side of the substrate; the flat layer is arranged close to the display area; the common electrode layer is arranged on one side, far away from the display area, of the flat layer; the touch wiring layer is arranged on one side, away from the substrate, of the flat layer; and the orthographic projection of the touch wiring layer on the substrate is positioned in the orthographic projection of the flat layer on the substrate. According to the embodiment of the invention, the touch wiring layer is arranged at the corresponding position of the flat layer, so that the problem that the touch wiring layer is short-circuited by metal residues at the fault position of the contact position of the flat layer and the common electrode layer when the touch wiring layer crosses the whole flat layer and the common electrode layer is avoided, and the quality of the display panel is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced 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 diagram of a prior art display panel;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structure diagram of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of another display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a touch routing layer according to an embodiment of the present invention.
Detailed Description
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 some, not all, embodiments of the present invention. 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.
Referring to fig. 1, a schematic structural diagram of a display panel provided in the prior art is shown, where the display panel includes a display area a-a and a non-display area B-B, and the non-display area includes: the back plate 01 and the touch wiring layer 02 on the back plate 01, wherein, each electrode 021 of the touch wiring layer 02 is distributed on the back plate 01, it can be seen that, due to the existence of the offset a, there is metal residue between two adjacent electrodes 021 at the offset, and then the problem of electrode 021 short circuit is caused, and because the distance d1 is smaller between the adjacent electrodes 021 at the position corresponding to the common electrode VSS, and is smaller than the distance between the adjacent electrodes 021 at the position corresponding to the flat layer PLN, and then the problem of electrode short circuit can also occur.
Referring to fig. 2, a schematic structural diagram of a display panel according to an embodiment of the present invention is shown; wherein, this display panel includes: a display area A-A and a non-display area B-B arranged around the display area A-A.
Specifically, in fig. 2, the non-display area is divided into three areas, which include: touch wiring area B1, groove area B2 and dam area B3.
In addition, a display panel boundary region C-C is further arranged at the periphery of the non-display region B-B, and components for controlling the display panel are placed in the boundary region C-C.
Referring to fig. 3, a cross-sectional view of the non-display area B-B in fig. 2 in a direction D-D includes:
a substrate 10;
a common electrode layer 20 and a flat layer 30, both the common electrode layer 20 and the flat layer 30 being disposed on one side of the substrate 10; the flat layer 30 is disposed adjacent to the display area a-a; the common electrode layer 20 is arranged on one side of the flat layer 30 far away from the display area A-A;
the touch wiring layer 40 is arranged on one side, away from the substrate 10, of the flat layer 30; the orthographic projection of the touch wiring layer 40 on the substrate 10 is positioned in the orthographic projection of the flat layer 30 on the substrate 10.
Further, referring to fig. 2 and 3, the touch routing layer 40 is disposed in the touch routing area B1.
Referring to the display area a-a of fig. 2, a schematic diagram of a touch layer pattern is shown, wherein the touch layer 200 includes a first touch layer 210 and a second touch layer 220, wherein the first touch layer 210 is a bridge, and the second touch layer 220 includes: a receiving electrode Rx and a transmitting electrode Tx; the two adjacent receiving electrodes Rx are connected by a bridge of the first touch layer 210. The touch layer 200 is connected to the touch routing layer 40 at the touch routing area B1, and the touch routing layer 40 is connected to the microelectronic devices (ICs) at the border area C-C of the display panel. Specifically, the touch layer 200 is for realizing a touch function of the display panel, the touch routing layer 40 is used for connecting the touch layer 200 and an IC of the display panel, and the IC sends or receives an electrical signal to or from the touch layer 40 through the touch routing layer 40.
Further, the touch routing layer 40 and the first touch layer 210 or the second touch layer 220 are disposed on the same layer.
In the embodiment of the present invention, the thickness of the planarization layer 30 is higher than that of the common electrode layer 20, and thus, a junction of the planarization layer 30 and the common electrode layer 20 has a step. The orthographic projection of the touch wiring layer 40 on the substrate 10 is located in the orthographic projection of the flat layer 30 on the substrate 10, no metal residue exists at the offset, and the problem of short circuit between two adjacent touch wirings is avoided.
In the embodiment of the invention, the display area A-A of the display panel comprises: the touch control device comprises a substrate 10, a flat layer 30, a second electrode layer 60, an encapsulation layer 70 and a touch control layer 200, wherein the touch control layer 200 is arranged on one side of the encapsulation layer 70, which is far away from the substrate 10, and is arranged on the same layer with the touch control wiring layer 40. The substrate 10 of the display area and the substrate 10 of the non-display area are of an integral structure, the planarization layer 30 of the display area and the planarization layer 30 of the non-display area are of an integral structure, the second electrode layer 60 of the display area and the second electrode layer of the non-display area are of an integral structure, and the encapsulation layer 70 of the display area and the encapsulation layer 70 of the non-display area are of an integral structure. In addition, the display area further includes other functional layers, which are not limited herein.
In the embodiment of the present invention, the offset is caused by the unevenness of each film layer, mainly because in the preparation process of the display panel, the substrate 10 is provided first, then the common electrode layer 20 is formed, and finally the planarization layer 30 is formed, the planarization layer covers the common electrode layer 20, and after the planarization layer 30 on the common electrode layer 20 is removed, the offset is formed between the planarization layer 30 and the common electrode layer 20 in fig. 3.
In the embodiment of the present invention, referring to fig. 3, the non-display area B-B further includes:
a first electrode layer 50, wherein the first electrode layer 50 is arranged on one side of the common electrode layer 20 far away from the substrate 10;
a second electrode layer 60, wherein the second electrode layer 60 is arranged on one side of the flat layer 30 far away from the substrate 10;
and the packaging layer 70 is arranged on the side, away from the substrate 10, of the second electrode layer 60.
The first electrode layer 50 is disposed on the edge of the touch routing area B1 near the groove area B2, the groove area B2, and the dam area B3.
Further, the encapsulation layer 70 includes at least: a first inorganic encapsulation layer 71, a second inorganic encapsulation layer 72, and an organic encapsulation layer 73 disposed between the first inorganic encapsulation layer 71 and the second inorganic encapsulation layer 72.
In addition, referring to fig. 3, the touch wire layer 40 is disposed parallel to the second inorganic encapsulation layer 18, so that the space where the touch wire layer 40 can be disposed can be more effectively utilized.
Wherein, the material of the substrate 10 is a glass material; the materials of the common electrode layer 20, the first electrode layer 50 and the second electrode layer 60 are all conductive materials, such as: copper, aluminum, ITO, or the like; the material of the planarization layer 30 includes: PI (polyimide); the materials of the first inorganic encapsulation layer 71 and the second inorganic encapsulation layer 72 include: silicon nitride, silicon oxide, and the like; the materials of the organic encapsulation layer 73 include: an organic ink.
In the embodiment of the present invention, the planarization layer 30 only covers the edge region of the common electrode layer 20, and the first electrode layer 50 is mainly disposed on the common electrode layer 20, so that the contact area between the first electrode layer 50 and the common electrode layer 20 can be increased, wherein the common electrode layer 20 is used for grounding, to lead out the excess charges in the display panel, and to prevent the display panel from being damaged, therefore, increasing the contact area between the first electrode layer 50 and the common electrode layer 20 can accelerate the lead-out of the excess charges in the display panel, and further prevent the damage of the display panel.
Referring to fig. 3 and 4, a groove 31 is provided on the planarization layer 30; the groove 31 extends from the side of the flat layer 30 away from the substrate 10 toward the substrate 10; dummy support posts 80 are arranged on one side of the flat layer 30 away from the substrate 10; the orthographic projection of the dummy support posts 80 on the planarization layer 30 is between the groove 31 and the display area a-a.
In addition, the second electrode layer 60 covers the dummy support pillars 80; the thickness d2 of the organic encapsulation layer 73 between the first inorganic encapsulation layer 71 and the second inorganic encapsulation layer 72 at the corresponding position of the dummy support pillar 80 is greater than 5 degrees.
Referring to fig. 1, the dummy support post X1 in the prior art is disposed on the flat layer PLN, but due to the protrusion of the dummy support post X1, when the organic encapsulation layer IJP is prepared, the liquid IJP is solidified, and the organic encapsulation layer IJP above the dummy support post X1 is thin or not completely covered, so the electrode line 021 at the position corresponding to the dummy support post X1 in the prior art is easily broken when being etched, and the problem of disconnection occurs. The thickness d2 of the organic encapsulation layer 73 at the position corresponding to the dummy support pillar 80 of the display panel provided by the embodiment of the invention is larger than 5, and the organic encapsulation layer 73 can completely cover the dummy support pillar 80, so that the problem of disconnection caused by easy breaking during etching of the touch wiring layer 02 is reduced.
Specifically, in the preparation of the encapsulation layer 70, the first inorganic encapsulation layer 71 is prepared by a vapor deposition method, and then the liquid organic ink is printed on the first inorganic encapsulation layer 71, referring to fig. 3, due to the discontinuity at the junction of the planarization layer 30 and the common electrode layer 20, the thickness of the liquid organic ink becomes thinner in the direction toward the discontinuity, if the dummy support posts 80 are positioned toward the discontinuity, the organic ink at the corresponding locations of the dummy support posts 80 is thinner or absent, then, when etching the touch wiring layer 40, a liquid photoresist PR is formed on the touch wiring layer 40, and due to the protrusion of the dummy support pillars 80, the photoresist at the corresponding locations of the dummy support posts 80 will also be relatively thin, and after curing, the touch routing layer 40 is etched, and the touch routing layer 40 at the position corresponding to the dummy support pillar 80 is easily cut. Based on this, the dummy support pillars 80 are arranged between the groove 31 and the display area a-a, and the dummy support pillars 80 are prevented from being arranged in the direction of the step, so that the organic ink at the positions corresponding to the dummy support pillars 80 can be ensured to have a certain thickness after being cured, such as the thickness d2 in fig. 2, and the organic ink at the positions corresponding to the dummy support pillars 80 is ensured to have a certain flatness after being cured, so that when a liquid photoresist is formed subsequently, the photoresist at the positions corresponding to the dummy support pillars 80 is not too thin, and the touch routing layer 40 is not broken.
In the embodiment of the present invention, the first thickness value d2 may also be set to other values as needed, and is not limited herein.
Wherein, referring to fig. 4, the non-display area further includes: a ground trace 90; the ground trace 90 is disposed on a side of the first inorganic encapsulation layer 71 away from the substrate 10; the orthographic projection of the ground trace 90 on the substrate 10 is located in the orthographic projection of the common electrode layer 20 on the substrate 10.
Furthermore, the distance d3 between the ground trace 90 and the touch trace layer 40 is greater than 40 μm.
In the embodiment of the present invention, the ground trace 90 and the touch trace layer 40 are prepared by the same process, and in addition, the ground trace 90 may be disposed in the groove region B2 or the touch trace region B1, wherein, since the distance between the ground trace 90 and the touch trace layer 40 is usually large (greater than 40 μm), even if a part of metal remains at the fault position when the ground trace 90 and the touch trace layer 40 are prepared, the short circuit problem is not caused.
Wherein, a blocking dam 100 is arranged on one side of the first electrode layer 50 far away from the substrate 10; the second electrode layer 60 is provided on the first electrode layer 50 between the barrier dam 100 and the planarization layer 30; the ground trace 90 is disposed on the first inorganic encapsulation layer 71 between the blocking dam 100 and the planarization layer 30.
Specifically, the dam 100 is disposed in the dam region B3.
In the preparation process of the organic encapsulation layer 73, the blocking dam 100 is arranged to block the liquid organic encapsulation layer from overflowing the display panel because the organic encapsulation layer 73 is in a liquid state, thereby affecting the quality of the display panel.
Referring to fig. 5, wherein the touch routing layer 40 includes: a first sub-touch wiring layer 41, an insulating layer 42, and a second sub-touch wiring layer 43; the first sub-touch routing layer 41 is disposed on the packaging layer 70; the insulating layer 42 is disposed between the first sub-touch routing layer 41 and the second sub-touch routing layer 43; the second sub-touch routing layer 43 is disposed on a side of the insulating layer 42 away from the first sub-touch routing layer 41; the first sub-touch routing layer 41 includes a plurality of first routing lines 411 arranged in parallel, and the second sub-touch routing layer 43 includes a plurality of second routing lines 431 arranged in parallel; the first traces 411 and the second traces 431 are in one-to-one correspondence.
In an embodiment of the present invention, referring to fig. 2 and 5, the non-display area B-B further includes: a buffer layer 44 and an organic material layer 45; wherein the buffer layer 44 is disposed between the first sub-touch routing layer 41 and the insulating layer 42; the organic material layer 45 is disposed on a side of the second sub-touch routing layer 41 facing away from the encapsulation layer 70.
Further, the display area a-a includes: a touch layer 200; the touch layer 200 includes: the buffer layer 44, the first touch layer 210, the insulating layer 42, the second touch layer 220, and the organic material layer 45 are sequentially stacked. The first sub-touch wiring layer 41 and the first touch layer 210 are made of the same material and are arranged on the same layer, and the patterns are different; the second sub-touch routing layer 43 and the second metal layer 220 are made of the same material and are disposed on the same layer, and have different patterns.
Furthermore, FMLOC is manufactured on the backplane through deposition, exposure, development, etching and other industries, and the setting mode of the touch routing layer 40 provided by the embodiment of the invention can avoid the problem that the touch routing layer 40 is short-circuited and open-circuited after the touch routing layer 40 is etched.
Further, the buffer layer 44 is made of SiNx(ii) a The materials of the first sub-touch routing layer 41 and the first touch layer 210 are three layers of Ti/Al/Ti or ITO/Ag/ITO. The material of the insulating layer 42 is SiNx(ii) a The material of the second sub-touch routing layer 43 and the second metal layer 220 is three layers of Ti/Al/Ti, or ITO/Ag/ITO; the material of the organic material layer 45 is Polyimide (PI).
In the embodiment of the invention, by carrying out structural design on the relative positions of the touch wiring layer and the flat layer, the problem of short circuit or open circuit between channels caused by metal residue or over etching after the touch wiring layer is exposed and etched can be avoided, the production yield is improved, and the production cost is reduced.
A second aspect of the invention provides a display device comprising the display panel described in any one of the above.
An embodiment of the present invention provides a display panel, including: the display panel comprises a display area and a non-display area arranged on the periphery of the display area, wherein the non-display area comprises: a substrate; the common electrode layer and the flat layer are arranged on one side of the substrate; the flat layer is arranged close to the display area; the common electrode layer is arranged on one side, far away from the display area, of the flat layer; the touch wiring layer is arranged on one side, away from the substrate, of the flat layer; and the orthographic projection of the touch wiring layer on the substrate is positioned in the orthographic projection of the flat layer on the substrate. According to the embodiment of the invention, the touch wiring layer is arranged at the corresponding position of the flat layer, so that the problem that the touch wiring layer is short-circuited by metal residues at the fault position of the contact position of the flat layer and the common electrode layer when the touch wiring layer crosses the whole flat layer and the common electrode layer is avoided, and the quality of the display panel is improved.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the apparatus and the structure described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A display panel, the display panel comprising: display area and setting are in non-display area around the display area, its characterized in that, non-display area includes:
a substrate;
the common electrode layer and the flat layer are arranged on one side of the substrate; the flat layer is arranged close to the display area; the common electrode layer is arranged on one side, far away from the display area, of the flat layer;
the touch wiring layer is arranged on one side, away from the substrate, of the flat layer; and the orthographic projection of the touch wiring layer on the substrate is positioned in the orthographic projection of the flat layer on the substrate.
2. The display panel according to claim 1, wherein the non-display region further comprises:
the first electrode layer is arranged on one side, far away from the substrate, of the common electrode layer;
the second electrode layer is arranged on one side, away from the substrate, of the flat layer;
and the packaging layer is arranged on one side of the second electrode layer, which is far away from the substrate.
3. The display panel according to claim 2, wherein the encapsulation layer comprises at least: the organic light-emitting device comprises a first inorganic packaging layer, a second inorganic packaging layer and an organic packaging layer arranged between the first inorganic packaging layer and the second inorganic packaging layer.
4. The display panel according to claim 3, wherein a groove is provided on the planarization layer; the groove extends from one side of the flat layer far away from the substrate and towards the substrate; arranging a dummy support column on one side of the flat layer far away from the substrate;
an orthographic projection of the dummy support posts on the planarization layer is between the grooves and the display area.
5. The display panel according to claim 4, wherein the second electrode layer covers the dummy support posts; the thickness of the organic encapsulation layer between the first inorganic encapsulation layer and the second inorganic encapsulation layer at the position corresponding to the dummy support column is more than 5 degrees.
6. The display panel according to claim 3, wherein the non-display region further comprises: grounding and routing; the grounding wire is arranged on one side, far away from the substrate, of the first inorganic packaging layer; and the orthographic projection of the grounding wire on the substrate is positioned in the orthographic projection of the common electrode layer on the substrate.
7. The display panel of claim 6, wherein a distance between the ground trace and the touch trace layer is greater than 40 μm.
8. The display panel according to claim 6, wherein a side of the first electrode layer away from the substrate is provided with a barrier dam; the second electrode layer is arranged on the first electrode layer between the blocking dam and the flat layer; the ground trace is disposed on the first inorganic encapsulation layer between the dam and the planarization layer.
9. The display panel of claim 2, wherein the touch routing layer comprises: the touch control device comprises a first sub-touch control wiring layer, an insulating layer and a second sub-touch control wiring layer; the first sub-touch routing layer is arranged on the packaging layer; the insulating layer is arranged between the first sub-touch wiring layer and the second sub-touch wiring layer; the second sub-touch wiring layer is arranged on one side, away from the first sub-touch wiring layer, of the insulating layer; the first sub-touch wiring layer comprises a plurality of first wirings arranged in parallel, and the second sub-touch wiring layer comprises a plurality of second wirings arranged in parallel; the first wires and the second wires are in one-to-one correspondence.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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CN202110562936.3A CN113157140A (en) | 2021-05-21 | 2021-05-21 | Display panel and display device |
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