CN107342370B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN107342370B CN107342370B CN201710546482.4A CN201710546482A CN107342370B CN 107342370 B CN107342370 B CN 107342370B CN 201710546482 A CN201710546482 A CN 201710546482A CN 107342370 B CN107342370 B CN 107342370B
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- 239000010410 layer Substances 0.000 claims abstract description 215
- 239000000758 substrate Substances 0.000 claims abstract description 99
- 125000006850 spacer group Chemical group 0.000 claims abstract description 46
- 239000002346 layers by function Substances 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 20
- 238000004210 cathodic protection Methods 0.000 claims description 12
- 238000004020 luminiscence type Methods 0.000 claims description 11
- 239000011810 insulating material Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 16
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000010409 thin film Substances 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000027756 respiratory electron transport chain Effects 0.000 description 2
- 229910004205 SiNX Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
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- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
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- 239000012945 sealing adhesive Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
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- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/82—Cathodes
- H10K50/824—Cathodes combined with auxiliary electrodes
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention provides a display panel, which comprises an array substrate and a packaging substrate, wherein the packaging substrate comprises a touch electrode layer and an auxiliary cathode layer, and the auxiliary cathode layer and the touch electrode layer are arranged at intervals in an insulating way through an insulating spacing layer; the array substrate comprises an organic light-emitting functional layer, wherein the organic light-emitting functional layer comprises: the light-emitting layer is positioned on the anode and the cathode at the upper side and the lower side of the light-emitting layer; the array substrate further comprises a plurality of first conductive structures, each first conductive structure comprises a first spacer and a first conductive layer located on the surface of the first spacer, and the auxiliary cathode layer is electrically connected with the cathode through the first conductive structure. The touch control function can be realized, the cathode voltage drop of the display panel is reduced through the auxiliary cathode layer, the brightness uniformity of the display panel is improved, and the connection problem of the touch control electrode layer and the auxiliary cathode layer is solved.
Description
Technical field
The present invention relates to field of display technology, and in particular to a kind of display panel and display device.
Background technique
Currently, using organic compound as fluorophor with the organic light emitting display face with excellent brightness and excitation purity
Plate receives much attention, since organic light emitting display panel is light and thin, and can be with low-power drive, so in addition to flat in larger size
Except application in plate display device, organic light emitting display applies also for portable display apparatus.With the hair of display device
Exhibition, have the function of it is more and more diversified, wherein especially prominent is that display device is made to have touch function.Wherein, it will touch
Control electrode is integrated in organic light emitting display panel, makes it have touch function, is conducive to the lightening of display device, and make
Difficulty is low, and detection accuracy is high, is increasingly becoming the mainstream of display device.
In general, organic light emitting display panel is divided into top emitting organic light emitting display panel or bottom hair according to light emission direction
Penetrate organic light emitting display panel.Wherein, in top emitting organic light emitting display panel, due to the hair by organic light emitting display panel
The light for penetrating layer generation is gone out across emission of cathode, so cathode needs to be transparent.Therefore, cathode by transparent conductive material for example
Thickness is sufficiently small to be made with becoming transparent MgAg or ITO.However, since the resistance of the transparent conductive material of ITO is higher, and
MgAg can only also have limited thickness, cause the resistance of cathode higher, increase the voltage drop of cathode, the size of display panel
Bigger, the voltage drop of cathode is bigger, so that picture quality and display characteristic can be uneven.
Summary of the invention
The present invention provides a kind of display panel and its display device, to solve the voltage drop of cathode in the prior art compared with
Big and touch control electrode contacts difficult problem with touch chip.
Firstly, the present invention provides a kind of display panel, the peripheral region including viewing area and the circular viewing area,
It is characterized in that: the display panel further include: upper underlay substrate；Lower underlay substrate is oppositely arranged with the upper underlay substrate；
Touch control electrode layer, is set to side of the upper underlay substrate towards the lower underlay substrate, and the touch control electrode layer includes more
A touch control electrode；Auxiliary cathode layer is set to side of the upper underlay substrate towards the lower underlay substrate, the auxiliary yin
Pole layer is arranged with the touch control electrode layer by dielectric spacer layer insulation gap；Organic luminescence function layer is set to the lower lining
Side of the substrate towards the upper underlay substrate, the organic luminescence function layer includes: luminescent layer, is located on the luminescent layer
The anode and cathode of lower two sides；And first conductive structure, each first conductive structure include: the first spacer and be located at
First conductive layer on first spacer surface；The auxiliary cathode layer passes through first conductive structure and cathode electricity
Connection.
In an embodiment of the invention, above-mentioned dielectric spacer layer is made of organic insulating material.
In an embodiment of the invention, the thickness of above-mentioned dielectric spacer layer is greater than 1 micron.
In an embodiment of the invention, above-mentioned display panel further includes the cathode on the lower underlay substrate
Protective layer, the cathodic protection layer are located at the side towards the upper underlay substrate of the cathode.
In an embodiment of the invention, above-mentioned first conductive structure is located at viewing area, and is set to display panel
Non-open areas, the first conductive structure by be located at cathodic protection layer on opening be electrically connected with auxiliary cathode layer.
In an embodiment of the invention, above-mentioned auxiliary cathode layer is fenestral fabric, and above-mentioned auxiliary cathode layer
It is set to the non-open areas of display panel.
In an embodiment of the invention, above-mentioned auxiliary cathode layer is made of metal material.
In an embodiment of the invention, above-mentioned lower underlay substrate face upward underlay substrate side on be additionally provided with
Multiple second conductive structures positioned at peripheral region, each second conductive structure include: the second spacer and be located at the second spacer
Second conductive layer on surface；Touch control electrode is electrically connected by the second conductive structure with the touch chip being located on lower underlay substrate.
In an embodiment of the invention, above-mentioned dielectric spacer layer covers touch control electrode layer, and touch control electrode passes through company
Bridge is connect to be electrically connected with the second conductive structure；The connecting bridge is formed with the auxiliary cathode layer same layer.
In an embodiment of the invention, above-mentioned display panel further include: touch-control lead, the touch-control lead setting
In the peripheral region of the lower underlay substrate；The one or both ends of touch control electrode are electrically connected with the second conductive structure, the second conductive knot
Structure is electrically connected by touch-control lead with touch chip.
In an embodiment of the invention, above-mentioned touch-control lead and anode same layer are arranged.
In an embodiment of the invention, above-mentioned display panel further include: a plurality of touching signals line, the touch-control letter
Number line is set to side of the upper underlay substrate towards the lower underlay substrate；The touch control electrode passes through the touching signals
Line is electrically connected with second conductive structure；Second conductive structure is located at the peripheral region and sets close to the touch chip
It sets, second conductive structure is electrically connected with the touch chip.
In an embodiment of the invention, above-mentioned first conductive layer, the second conductive layer and cathode same layer are arranged.
In addition, the display device includes display panel described in any of the above item the present invention also provides a kind of display device.
Compared with prior art, the technical scheme provided by the invention has the following advantages: display surface provided by the invention
In the package substrate of display panel, while touch control electrode layer and auxiliary cathode layer is arranged, and the two passes through dielectric spacer layer in plate
It separates, touch function both may be implemented, the cathode fall of display panel is reduced further through auxiliary cathode layer, improve display
The brightness uniformity of panel, and the method by the way that conductive layer is arranged on spacer divides touch control electrode layer and auxiliary cathode layer
It is not electrically connected in the touch chip and cathode of array substrate, in the case where not increasing product processing procedure, while solving touch-control
The connectivity problem of electrode layer and auxiliary cathode layer.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is the schematic diagram of the display panel in one embodiment of the invention；
Fig. 2 is the top view of display panel shown in Fig. 1；
Fig. 3 a is a kind of connected mode schematic diagram of touch control electrode layer in display panel shown in Fig. 1；
Fig. 3 b is another connected mode schematic diagram of touch control electrode layer in display panel shown in Fig. 1；
Fig. 3 c is another connected mode schematic diagram of touch control electrode layer in display panel shown in Fig. 1；
Fig. 4 is the schematic diagram of the display panel in another embodiment of the present invention；
Fig. 5 is the top view of display panel shown in Fig. 4；
Fig. 6 is the schematic diagram of the display panel in further embodiment of this invention；
Fig. 7 is the schematic diagram of the display panel in yet another embodiment of the invention；
Fig. 8 is the schematic diagram of the display device in one embodiment of the invention.
Specific embodiment
For a better understanding of the technical solution of the present invention, making with reference to the accompanying drawings and examples to the present invention further
It is described in detail.It is understood that specific embodiment described herein is used only for explaining the present invention, rather than to of the invention
It limits.It also should be noted that only the parts related to the present invention are shown for ease of description, in attached drawing and it is not all
Structure.
Firstly, the present invention provides a kind of display panel, specifically please refer to shown in Fig. 1 and Fig. 2, Fig. 1 is that the present invention one is implemented
The schematic diagram of display panel in example, Fig. 2 is the top view of display panel shown in Fig. 1, which includes viewing area
101 and around the viewing area peripheral region 102.Further, display panel 100 includes the array substrate 10 being oppositely arranged and envelope
Substrate 20 is filled, array substrate 10 is sealing adhesive with package substrate 20 by being located at a sealant 25 around viewing area of peripheral region
Together.
Specifically, array substrate 10 includes: lower underlay substrate 11, it is formed in the underlay substrate upwardly of lower underlay substrate 11
21 sides and the pixel defining layer 12 with multiple openings, and the first spacer 161 above pixel defining layer 12.
For pixel defining layer 12 for limiting non-open areas and multiple open areas, the first spacer 161 is located at pixel defining layer 12
Open area namely the first spacer 161 are located at the non-open areas of display panel, and the first spacer 161 is for maintaining array
Stablize in gap between substrate 10 and package substrate 20.The material of pixel defining layer 12 and the first spacer 161 is insulation material
Material, any insulating materials appropriate known in the art are used equally for the pixel defining layer 12 and the first spacer 161, may be used also
To be organic insulating material.In other embodiments, pixel defining layer can also be arranged with the first spacer with same layer, while shape
At.
Array substrate 10 further includes that organic luminescence function layer 30 is correspondingly arranged positioned at the viewing area of display panel 100 101
In the light emitting region of viewing area 101.Organic luminescence function layer 30 includes the anode 13 being set in turn on lower underlay substrate 11, hair
Photosphere 14 and cathode 15.In the present embodiment, cathode 15 is a whole face-type structural, i.e., is shared by all organic luminescence function layers
Common electrode, when using whole face formula cathode, due to no longer needing to individually drive to each organic luminescence function layer 30 setting cathode
The incoming line of dynamic signal, therefore can simplify the manufacturing step of display panel, save cost.Luminescent layer 14 for example may include
Organic light emitting material and the electron transfer layer and firm cave transport layer that the organic light emitting material two sides are set.In this base
On plinth, in order to improve the efficiency of electrons and holes injection luminescent layer, which can also include that setting exists
Electron injecting layer between cathode and electron transfer layer, and the hole injection layer asked in anode and hole transmission layer.
Further, above-mentioned display panel further includes the thin film transistor (TFT) in array substrate.Wherein, thin film transistor (TFT)
Including grid, gate insulation layer, semiconductor active layer, source electrode and drain electrode, wherein drain electrode is electrically connected with anode 13.It needs to illustrate
It is that the embodiment of the present invention is not defined the type of thin film transistor (TFT), can be amorphous silicon film transistor, low-temperature polysilicon
Silicon thin film transistor, metal oxide thin-film transistor, Organic Thin Film Transistors etc., specifically it is not limited here.In addition, film
Product body pipe can also be bottom gate type or top gate type.
Further, display panel 100 is top emitting formula display panel, and the material of anode 13 is opaque conductive material,
Such as metal material；The material of cathode 15 is transparent conductive material, such as tin indium oxide transparent conductive material, and light is from array substrate
It is emitted towards the side of package substrate.
Package substrate 20 includes: upper underlay substrate 21, the touch control electrode layer 22 and auxiliary being formed on underlay substrate 21
Cathode layer 24, touch control electrode layer 22 and auxiliary cathode layer 24 are set to the side of the underlay substrate 11 downwards of underlay substrate 21,
And auxiliary cathode layer 24 and touch control electrode layer 22 are arranged by one layer of 23 insulation gap of dielectric spacer layer, to reduce auxiliary cathode layer
With the parasitic capacitance of touch control electrode interlayer.In the present embodiment, auxiliary cathode layer 24 is the transparent electricity made of tin indium oxide
Pole.Dielectric spacer layer 23, can also be by organic insulation such as that can be formed as SiNx, SiO2, Al2O3 as inorganic insulating material
The formation such as material such as photosensitive polyimide resin, when dielectric spacer layer is formed by organic insulating material, the thickness that can make
It is bigger, for example, the thickness of dielectric spacer layer can be set to be greater than 1 micron, to preferably reduce auxiliary cathode layer and touching
Control the parasitic capacitance of electrode interlayer.
Further, display panel further includes the first conductive structure 181, and the first conductive structure 181 is located at lower underlay substrate
On 11 side of underlay substrate 21 upwardly, each first conductive structure 181 includes: the first spacer 161 and be located at first
First conductive layer 151 on 161 surface of spacer, auxiliary cathode layer 24 pass through in the first conductive structure 181 and array substrate 10
Cathode 15 is electrically connected, and reduces cathode impedance, reduces the voltage drop as caused by cathode impedance.Wherein, the first conductive layer 151 covering the
The top of one spacer 161 connect with cathode and is formed with cathode same layer.So that the first conductive structure is in support package substrate
Meanwhile being electrically connected for auxiliary cathode layer and cathode is realized by conductive layer, and not will increase the manufacture craft of display panel.
Further, display panel 100 further includes touch control electrode layer 22 and the second conductive structure in array substrate
182, the second conductive structure 182 is located on the side of underlay substrate 21 upwardly of lower underlay substrate 11, each second conductive knot
Structure 182 includes: the second spacer 162 with positioned at second conductive layer 152 on 162 surface of the second spacer, and touch control electrode layer 22 is logical
It crosses the second conductive structure 182 to be electrically connected with the touch chip 26 in array substrate 10, touch chip 26 can be with flexible circuit board
Electrical connection, to obtain touching signals.Wherein, the second conductive layer 152 covers the top of the second spacer 162, such as can be with yin
Pole same layer is formed, and not will increase the manufacture craft of display panel in this way.Second spacer 162 simultaneously for maintain array substrate with
Gap between package substrate is stablized, and the second spacer 162 is formed with the same material of the first spacer 161, same layer.
In one embodiment of the invention, as shown in Fig. 2, the first conductive structure 181 is set to the display of display panel
Area 101, the second conductive structure 182 are set to the peripheral region 102 of display panel.Display panel further includes touch-control lead 132, touch-control
Lead 132 is located in array substrate and is arranged with anode same layer, not will increase the manufacture craft of display panel in this way.Further
, in the present embodiment, touch-control lead and anode same layer are arranged, and the second conductive layer is formed with cathode same layer, touch-control lead and the
Two conductive layers can for example be connected by the via hole through pixel defining layer.
Specifically, please also refer to shown in Fig. 1-3c, in embodiments of the present invention, the control mode touch mode of the display panel
It can be self-capacitance or mutual capacitance type, be also possible to pressure sensitive touch-control.Embodiment of the present invention is by taking self-capacitance as an example, touching
Electrode layer 22 is controlled all including multiple touch control electrodes 221 of array arrangement, and each touch control electrode 221 passes through the second conductive structure respectively
182 are electrically connected to port and touch chip port to export scanning signal of the touch chip to receive detection signal,
When user touches, the capacitor between the touch control electrode 221 and ground of touch location can change, so that the touching of touch location
Detection signal can change on control electrode 221, so that touch chip can determine touch-control by the detection signal received
Position makes display panel execute corresponding operation.
Fig. 3 a is a kind of connected mode schematic diagram of touch control electrode layer in display panel shown in Fig. 1, in this embodiment, is shown
Show that panel further includes the touching signals line 222 on package substrate, touch control electrode 221 passes through at least one corresponding touch-control letter
Number line 222 is electrically connected with the second conductive structure 182, and the second conductive structure 182 is connected by touch-control lead 132 and touch chip 26
It connects, and then realizes being electrically connected for touch control electrode 221 and touch chip 26；Fig. 3 b is touch control electrode layer in display panel shown in Fig. 1
Another connected mode schematic diagram, in the present embodiment, with connection type shown in Fig. 3 a the difference lies in that touch control electrode
221 both ends pass through touching signals line 222 respectively and are electrically connected with the second conductive structure 182, when using connection side shown in Fig. 3 b
When formula, every touch-control lead 132 introduces signal from 221 both ends of touch control electrode simultaneously, the signal that both ends introduce be it is synchronous, so
Being arranged can make the signal at both ends be required to effectively reduce letter by the i.e. reachable touch control electrode 221 of shorter transmission range
Voltage drop number in transmission process, and then the load on touch-control lead 132 can be effectively reduced.Connect when using shown in Fig. 3 a
When connecing mode, every touch-control lead 132 only introduces signal from one end of touch control electrode 221, can effectively reduce positioned at array base
The quantity of the touch-control lead of the peripheral region of plate is more conducive to realizing display device so that the width that touch-control lead occupies is smaller
Narrow frame.
Fig. 3 c is another connected mode schematic diagram of touch control electrode layer in display panel shown in Fig. 1, in the present embodiment,
Second conductive structure 182 is located at the position of the close touch chip 26 of peripheral region, and the second conductive structure 182 passes through touch-control lead
132 are electrically connected with touch chip.Since the second conductive structure 182 is located at the position of the close touch chip 26 of peripheral region, accordingly
, touch-control lead 132 is also only positioned at the position of the close touch chip of array substrate.Touch control electrode 221, which passes through, is located at encapsulation base
Touching signals line 222 on plate is connect with the second conductive structure 182, since the peripheral circuit on display panel is generally all located at battle array
In the peripheral region of column substrate, and touching signals line is located on package substrate, it is possible to prevente effectively from the periphery electricity of driving display panel
Road conflicts with the position of touching signals line, so that the width of the peripheral region of array substrate can suitably reduce, and then can rise
To the effect for reducing frame.
The display panel that embodiment of the present invention provides, is provided with simultaneously in the side of the close array substrate of package substrate
Touch control electrode layer and auxiliary cathode layer, auxiliary cathode layer are directly connect with cathode by the first conductive structure, can be in realization
While embedded touch function, the voltage drop of cathode is effectively prevent or reduced.Further, touch control electrode layer is connected to touch-control
Second conductive structure of chip is similar with the structure of the first conductive structure, and the first conductive layer and the second conductive layer are all same with cathode
Layer is formed, and while not increasing the manufacture craft of display panel, while solving the company of touch control electrode layer Yu auxiliary cathode layer
Connect problem.
Fig. 4 is the schematic diagram of the display panel in another embodiment of the present invention, and Fig. 5 is the vertical view of display panel shown in Fig. 4
Figure, in this example it is shown that panel 100 includes the array substrate 10 being oppositely arranged and package substrate 20.Array substrate 10 is wrapped
It includes: pixel defining layer 12, for limiting the non-open areas 101a and multiple open area 101b of viewing area 101；Organic light emission
Functional layer 30 is correspondingly arranged in each open area 101b.Organic luminescence function layer 30 includes anode 13, luminescent layer 14 and cathode
15.Package substrate 20 includes touch control electrode layer 22 and auxiliary cathode layer 24, wherein auxiliary cathode layer 24 passes through the first conductive structure
181 are electrically connected with cathode 15, and auxiliary cathode layer 24 is reticular structure, and the auxiliary cathode layer 24 of reticular structure is correspondingly arranged in aobvious
Show panel non-open areas 101a namely reticular structure auxiliary cathode layer 24 lower underlay substrate 11 throwing in the plane
Shadow is fallen in pixel defining layer 12, and the open area for being provided with organic luminescence function layer 30 corresponds to the net of auxiliary cathode layer 24
Bore region, therefore, auxiliary cathode layer 24 will not block organic luminescence function layer 30 sending light, it is ensured that display device it is saturating
Cross rate.
In the present embodiment, since the auxiliary cathode layer 24 of reticular structure will not block the sending of organic luminescence function layer 30
Therefore light can reduce resistance by increasing the method for its thickness, alternatively, auxiliary cathode layer 24 can also be by lighttight
Metal material is formed, such as is formed by Al, Cr, Pt, W, Cu, Ag, Au etc., so that the resistance of the resistance ratio cathode of auxiliary cathode layer
It is low, when connecting with cathode, it can be effectively prevented or reduce the voltage drop of cathode.
Fig. 6 is the schematic diagram of the display panel in further embodiment of this invention, and display panel 100 includes the battle array being oppositely arranged
Column substrate 10 and package substrate 20, package substrate 20 include touch control electrode layer 22 and auxiliary cathode layer 24, auxiliary cathode layer 24 with
Touch control electrode layer 22 is by one layer of 23 insulation gap of dielectric spacer layer setting, and dielectric spacer layer 23 covers touch control electrode layer 22,
Effectively reduce the parasitic capacitance between auxiliary cathode layer 24 and touch control electrode layer 22.Auxiliary cathode layer 24 passes through the first conductive structure
It is electrically connected with the cathode in array substrate, touch control electrode layer 22 passes through the second conductive structure 182 and the touch-control core in array substrate
Piece electrical connection.
In the present embodiment, the second conductive structure 182 is located at the peripheral region of display panel, and the covering of dielectric spacer layer 23 extends
To peripheral region and covering touch control electrode layer 22, package substrate further includes the connecting bridge 241 positioned at display panel periphery area, connecting bridge
The via hole 231 that dielectric spacer layer 23 is run through by one in 241 one end is electrically connected with touch control electrode layer 22, the other end and the second conduction
Structure 182 is electrically connected, and then realizes being electrically connected for touch control electrode layer and the second conductive structure 182.Wherein, connecting bridge 241 is for example
It can be formed with 24 same layer of auxiliary cathode layer, not increase the manufacture craft of display panel.Further, in the present embodiment, auxiliary
The reticular structure for helping cathode layer that can for example be formed for metal material, so that the resistance of the resistance ratio cathode of auxiliary cathode layer is low,
It can be effectively prevented or reduce the voltage drop of cathode, while reducing the resistance value of the connecting bridge formed with auxiliary cathode layer same layer,
The resistance between touch control electrode layer and the second conductive structure is reduced, the touch-control sensitivity of touch control electrode layer is increased.
Fig. 7 is the schematic diagram of the display panel in yet another embodiment of the invention, and display panel 100 includes the battle array being oppositely arranged
Column substrate 10 and package substrate 20, array substrate 10 further includes the cathodic protection layer 17 of covered cathode 15, due to the material of cathode
It is usually silver-colored, it is easy to be oxidized, cathodic protection layer 17 is covered on the surface of cathode, can be effectively prevented positioned at light emitting region
Cathode is oxidized, and can also be played the role of fixed negative pole and be improved light-out effect.Further, the material of cathodic protection layer 17
Matter can be for example transparent organic or LiF etc..In the present embodiment, cathodic protection layer 17 extends to the periphery of display panel
Area, and cover the second conductive structure 182.
In the plane where array substrate 10, the orthographic projection of cathodic protection layer 17 is led with the first conductive structure 181, second
The orthographic projection on the top of electric structure 182 is not overlapped, and in other words, is corresponding to the first conductive structure 181, the on cathodic protection layer 17
The position on the top of two conductive structures 182, is provided with opening, and the first conductive structure 181, the top of the second conductive structure 182 are logical
The opening crossed through cathodic protection layer 17 is electrically connected with auxiliary cathode layer, touch control electrode layer respectively.It is arranged so that first leads
The first conductive layer 151, the second conductive layer 152 in electric structure 181, the second conductive structure 182 can respectively with auxiliary cathode layer,
Touch control electrode layer comes into full contact with, and conductive effect is good.Above-mentioned first conductive structure 181, the second conductive structure 182 are located at display
The viewing area and peripheral region of panel, while for maintaining the gap between underlay substrate and package substrate to stablize.
The compatible existing panel process of display panel that the above embodiments of the present application provide, not will increase additional process and covers
Film version quantity, thus there is advantage at low cost, it is conducive to industrial application.
In the package substrate of display panel, while touch control electrode layer and auxiliary is arranged in display panel provided by the invention
Cathode layer, and the two is separated by dielectric spacer layer, and touch function both may be implemented, and reduces display further through auxiliary cathode layer
The cathode fall of panel improves the brightness uniformity of display panel, and the side by the way that conductive layer is arranged on spacer
Touch control electrode layer and auxiliary cathode layer are electrically connected respectively in the touch chip and cathode of array substrate by method, are not increasing product
In the case where processing procedure, while solving the connectivity problem of touch control electrode layer and auxiliary cathode layer.
Fig. 8 is the schematic diagram of the display device in one embodiment of the invention, as shown in figure 8, the display device 200 include with
Upper described in any item display panels.Display device provided by the embodiments of the present application can be such as smart phone, wearable
Smartwatch, intelligent glasses, tablet computer, television set, display, laptop, Digital Frame, navigator, car-mounted display
Any products or components having a display function such as device, electrophoretic display device (EPD), e-book.Display panel provided by the embodiments of the present application
It can be flexibility with display device, or non-flexible, the application does not limit this.
The display device can also include other structures, such as shell, pedestal etc., and other structures are referred to existing set
Meter, herein without repeating.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (13)
1. a kind of display panel, including viewing area and around the peripheral region of the viewing area, it is characterised in that: the display panel
Further include:
Upper underlay substrate；
Lower underlay substrate is oppositely arranged with the upper underlay substrate；
Touch control electrode layer is set to side of the upper underlay substrate towards the lower underlay substrate, the touch control electrode layer packet
Include multiple touch control electrodes；
Auxiliary cathode layer, is set to side of the upper underlay substrate towards the lower underlay substrate, the auxiliary cathode layer with
The touch control electrode layer is arranged by dielectric spacer layer insulation gap；
Organic luminescence function layer is set to side of the lower underlay substrate towards the upper underlay substrate, the organic light emission
Functional layer includes: luminescent layer, the anode and cathode of two sides above and below the luminescent layer；
First conductive structure, each first conductive structure include: the first spacer and be located at first spacer surface
The first conductive layer；
The auxiliary cathode layer is electrically connected by first conductive structure with the cathode；
The lower underlay substrate is additionally provided with multiple second positioned at the peripheral region on the side towards the upper underlay substrate
Conductive structure, each second conductive structure include: that the second spacer is led with positioned at the second of second spacer surface
Electric layer；
The touch control electrode is electrically connected by second conductive structure with the touch chip being located on the lower underlay substrate.
2. display panel according to claim 1, which is characterized in that the dielectric spacer layer is by organic insulating material system
At.
3. display panel according to claim 2, which is characterized in that the thickness of the dielectric spacer layer is greater than 1 micron.
4. display panel according to claim 1, which is characterized in that the display panel further includes being located at the lower substrate
Cathodic protection layer on substrate, the cathodic protection layer are located at the side towards the upper underlay substrate of the cathode.
5. display panel according to claim 4, which is characterized in that first conductive structure is located at the viewing area,
And it is set to the non-open areas of the display panel, first conductive structure is by being located at opening on the cathodic protection layer
Mouth is electrically connected with the auxiliary cathode layer.
6. display panel according to claim 1, which is characterized in that the auxiliary cathode layer is fenestral fabric, described
Auxiliary cathode layer is correspondingly arranged in the non-open areas of the display panel.
7. display panel according to claim 6, which is characterized in that the auxiliary cathode layer is made of metal material.
8. display panel according to claim 1, which is characterized in that the dielectric spacer layer covers the touch control electrode
Layer, the touch control electrode are electrically connected by connecting bridge with second conductive structure；The connecting bridge and the auxiliary cathode layer
Same layer is formed.
9. display panel according to claim 1, which is characterized in that the display panel further include: touch-control lead, it is described
Touch-control lead is set to the peripheral region of the lower underlay substrate；
The one or both ends of the touch control electrode are electrically connected with the second conductive structure, and second conductive structure passes through the touch-control
Lead is electrically connected with the touch chip.
10. display panel according to claim 9, which is characterized in that the touch-control lead and the anode same layer are arranged.
11. display panel according to claim 9, which is characterized in that the display panel further include: a plurality of touching signals
Line, the touching signals line are set to side of the upper underlay substrate towards the lower underlay substrate, and the touch control electrode is logical
The touching signals line is crossed to be electrically connected with second conductive structure；
Second conductive structure is located at the peripheral region and is arranged close to the touch chip, second conductive structure and institute
State touch chip electrical connection.
12. display panel according to claim 1, which is characterized in that first conductive layer, the second conductive layer with it is described
The setting of cathode same layer.
13. a kind of display device, which is characterized in that the display device includes: as claim 1 to 12 is described in any item aobvious
Show panel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710546482.4A CN107342370B (en) | 2017-07-06 | 2017-07-06 | Display panel and display device |
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| CN201710546482.4A CN107342370B (en) | 2017-07-06 | 2017-07-06 | Display panel and display device |
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| CN107342370B true CN107342370B (en) | 2019-05-07 |
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| CN108615825B (en) * | 2018-04-26 | 2020-03-10 | 京东方科技集团股份有限公司 | Organic light-emitting display panel and manufacturing method thereof |
| CN108920002B (en) | 2018-06-29 | 2021-01-26 | 京东方科技集团股份有限公司 | Touch display panel and manufacturing method thereof |
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| CN109065751A (en) | 2018-07-25 | 2018-12-21 | 武汉华星光电技术有限公司 | Display module and electronic device |
| CN109037465B (en) * | 2018-07-26 | 2021-02-02 | 京东方科技集团股份有限公司 | OLED substrate, preparation method thereof and display panel |
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| CN109300959B (en) * | 2018-10-09 | 2021-09-03 | 合肥鑫晟光电科技有限公司 | Display panel, preparation method thereof and display device |
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| CN109785756B (en) * | 2019-03-15 | 2022-07-05 | 昆山国显光电有限公司 | Display panel and display device |
| KR102783662B1 (en) * | 2019-06-20 | 2025-03-20 | 삼성디스플레이 주식회사 | Display device |
| CN110212007A (en) * | 2019-06-21 | 2019-09-06 | 京东方科技集团股份有限公司 | Display base plate, display device and the method for making display base plate |
| CN110286802B (en) * | 2019-06-28 | 2023-09-26 | 京东方科技集团股份有限公司 | Touch display panel, manufacturing method thereof and display device |
| CN110658951B (en) * | 2019-09-25 | 2023-09-26 | 京东方科技集团股份有限公司 | Touch substrate, manufacturing method thereof and touch display device |
| CN111142714B (en) * | 2020-01-21 | 2021-12-28 | 昆山国显光电有限公司 | Display panel and display device |
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| CN111403463B (en) * | 2020-03-30 | 2023-04-28 | 京东方科技集团股份有限公司 | Touch display panel, manufacturing method thereof and display device |
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