CN108231853A - A kind of cover board and preparation method thereof, display panel and display device - Google Patents
A kind of cover board and preparation method thereof, display panel and display device Download PDFInfo
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- CN108231853A CN108231853A CN201810005387.8A CN201810005387A CN108231853A CN 108231853 A CN108231853 A CN 108231853A CN 201810005387 A CN201810005387 A CN 201810005387A CN 108231853 A CN108231853 A CN 108231853A
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- auxiliary electrode
- spacer material
- cover board
- substrate
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- 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
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- 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
- H10K59/1201—Manufacture or treatment
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- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a kind of cover board and preparation method thereof, display panel and display devices.The cover board includes substrate, the latticed auxiliary electrode being formed on substrate and the spacer material being formed on the auxiliary electrode；Wherein, multiple protrusions are formed in bottom end of the spacer material far from the auxiliary electrode；The surface of the spacer material and the surface of the corresponding auxiliary electrode of the spacer material are coated with conductive layer.The embodiment of the present invention makes auxiliary electrode on the cover board, can save space, reduces short-circuit risks；And the bottom end of spacer material is formed with multiple protrusions, reduces contact resistance, increases frictional force, improves the reliability of contact.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of cover board and preparation method thereof, display panel and display
Device.
Background technology
At present, in order to make the OLED of larger size higher resolution, (Organic Light-Emitting Diode, have
Machine light emitting diode) display panel, top emitting technology is gradually instead of bottom emitting technology.But for using top emitting
For large scale display panel prepared by technology, the resistance of transparent cathode such as IZO (indium zinc oxygen) etc. is bigger, it is necessary to use electricity
Smaller auxiliary electrode is hindered to reduce voltage drop.
Auxiliary electrode can be produced on backboard, but auxiliary electrode and its connect wire through substrate need occupy pixel space；And
And in case of the situation of auxiliary electrode and anode in short circuit, then whole display panel will be unable to light.Auxiliary electrode can also be made
Make on the cover board, but easily because the bottom surface of spacer material is uneven or has foreign matter and causes auxiliary electrode and cathode contacts bad,
It is ineffective so as to cause Display panel.
Invention content
The present invention provides a kind of cover board and preparation method thereof, display panel and display device, auxiliary in the prior art to solve
Electrode fabrication is helped in cover board, since the bottom surface unevenness of spacer material leads to loose contact, and then cause Display panel ineffective.
To solve the above-mentioned problems, the invention discloses a kind of cover board, the cover board includes substrate, is formed on substrate
Latticed auxiliary electrode and the spacer material being formed on the auxiliary electrode；
Wherein, multiple protrusions are formed in bottom end of the spacer material far from the auxiliary electrode；
The surface of the spacer material and the surface of the corresponding auxiliary electrode of the spacer material are coated with conductive layer.
Optionally, the protrusion is in cuboid or cylinder.
Optionally, the protrusion is 2~9.
Optionally, the material of the auxiliary electrode is at least one of aluminium, aluminium alloy, copper.
Optionally, the material of the conductive layer be ITO, IZO, nano silver, Al, Al alloy, in Mo, Cu, Ag alloy extremely
Few one kind.
Optionally, the substrate includes substrate, black matrix, color filter film and flatness layer.
To solve the above-mentioned problems, the invention also discloses a kind of production method of cover board, the method includes：
Latticed auxiliary electrode is formed on substrate；
Spacer material is formed on the auxiliary electrode；
By patterning processes multiple protrusions are formed in bottom end of the spacer material far from the auxiliary electrode；
Conductive layer is respectively formed on the surface on the surface of the spacer material and the corresponding auxiliary electrode of the spacer material.
Optionally, the protrusion is cuboid or cylinder.
To solve the above-mentioned problems, the invention also discloses a kind of display panels, and the display panel is including backboard and such as
Above-mentioned cover board；
Wherein, conductive layer and the cathode coupling of the auxiliary electrode on the cover board by the spacer material convex surfaces
It connects.
To solve the above-mentioned problems, the invention also discloses a kind of display devices, which is characterized in that the display device packet
Include display panel as described above
Compared with prior art, the present invention includes advantages below：
Cover board include substrate, the latticed auxiliary electrode that is formed on substrate and be formed on auxiliary electrode every
Underbed；Auxiliary electrode is made on the cover board, space can be saved, reduces short-circuit risks.In spacer material far from auxiliary electrode
Bottom end is formed with multiple protrusions；Conductive layer is coated on the surface on the surface of spacer material and the corresponding auxiliary electrode of spacer material.
Since the bottom end of spacer material is formed with multiple protrusions, a contact point of the prior art is become into multiple contact points, is avoided
Since the bottom surface of spacer material is uneven or foreign matter causes conductive layer bad with cathode contacts, so as to avoid because being led during loose contact
The display panel poor display effect of cause.
Description of the drawings
Fig. 1 shows a kind of one of structure diagram of cover board of the embodiment of the present invention one；
Fig. 2 shows the plan views of the spacer material bottom end of the embodiment of the present invention one；
Fig. 3 shows a kind of one of structure diagram of cover board of the embodiment of the present invention one
Fig. 4 shows a kind of step flow chart of the preparation method of cover board of the embodiment of the present invention two；
Fig. 5 shows a kind of structure diagram of display panel of the embodiment of the present invention three.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Embodiment one
With reference to Fig. 1, a kind of cover board of the embodiment of the present invention is shown.The cover board includes substrate 101, is formed in substrate
Latticed auxiliary electrode 102 on 101 and the spacer material 103 being formed on the auxiliary electrode 102；
Wherein, multiple protrusions are formed in bottom end of the spacer material 103 far from the auxiliary electrode 102；
The surface of the 103 corresponding auxiliary electrode 102 of surface and the spacer material of the spacer material 103 is coated with conduction
Layer 104.
In the present embodiment, cover board includes substrate 101, latticed auxiliary electrode 102 and spacer material 103.Auxiliary electrode 102
It is formed on the substrate 101, spacer material 103 is formed on auxiliary electrode 102.Position and quantity of the embodiment of the present invention to spacer material
It does not limit, can be configured according to actual conditions in detail.It is formed in bottom end of the spacer material 103 far from auxiliary electrode 102
Multiple protrusions.Conductive layer 104 envelopes the surface of spacer material 103, includes the surface of multiple protrusions, while conductive layer 104 also wraps
Cover the surface of 103 corresponding auxiliary electrode 102 of spacer material.Conductive layer 104 and the contact point of cathode are one in the prior art,
After the bottom end of spacer material 103 forms multiple protrusions, the contact point of conductive layer 104 and cathode becomes multiple.The embodiment of the present invention will
Auxiliary electrode makes on the cover board, and auxiliary electrode need not occupy pixel space, therefore can save space；And avoid auxiliary
Electrode and anode in short circuit, reduce short-circuit risks.The bottom end of spacer material is formed with multiple protrusions, and contact point is become more from one
It is a, contact resistance is reduced, increases frictional force, improves the reliability of contact.
Optionally, the protrusion is in cuboid or cylinder.
In the present embodiment, the protrusion that is formed in 103 bottom end of spacer material can be cuboid or cylinder, this hair
Bright embodiment does not limit this in detail, can be configured according to actual conditions.It puts down spacer material bottom end shown in Figure 2
Face figure, raised contact surface are rectangular or round.
Optionally, the protrusion is 2~9.
In the present embodiment, raised quantity can determine, such as 5 shown in Fig. 2 according to the size of 103 bottom surface of spacer material
Or 7, the embodiment of the present invention does not limit this in detail, can be configured according to actual conditions.
Optionally, the material of the auxiliary electrode 102 is at least one of aluminium, aluminium alloy, copper.
In the present embodiment, auxiliary electrode 103 can be aluminium or aluminium alloy, can also be copper, the embodiment of the present invention
This is not limited in detail, can be configured according to actual conditions.
Optionally, the material of the conductive layer 104 is ITO, IZO, in nano silver, Al, Al alloy, Mo, Cu, Ag alloy
It is at least one.
In this implementation, conductive layer 104 can be one kind in transparent ITO, IZO, nano silver or opaque
It is a kind of in Al, Al alloy, Mo, Cu, Ag alloy.The embodiment of the present invention does not limit this in detail, can according to actual conditions into
Row is chosen.
Optionally, with reference to the structure diagram of cover board shown in Fig. 3, the substrate 101 includes substrate 1011, black matrix
1012nd, color filter film 1013 and flatness layer 1014.
In the present embodiment, substrate can include substrate 1011, and the material of substrate can be glass, and the embodiment of the present invention is to this
It does not limit, can be configured according to actual conditions in detail.Latticed black matrix 1012 is formed on substrate 1011, it is color
Color filter coating 1013 is filled in the grid of black matrix 1012, and color filter film 1013 can be with covering part black matrix 1012.
Flatness layer 1014 is formed on the surface of black matrix 1012 and color filter film 1013.
In conclusion in the embodiment of the present invention, cover board includes substrate, the latticed auxiliary electrode being formed on substrate,
And it is formed in the spacer material on auxiliary electrode；Multiple protrusions are formed in bottom end of the spacer material far from auxiliary electrode；Spacer material
Surface and the surface of the corresponding auxiliary electrode of spacer material be coated with conductive layer.Auxiliary electrode is produced on by the embodiment of the present invention
On cover board, space can be saved, reduces short-circuit risks；And the bottom end of spacer material is formed with multiple protrusions, reduces contact electricity
Resistance, increases frictional force, improves the reliability of contact.
Embodiment two
With reference to Fig. 4, the production method for showing a kind of cover board of the embodiment of the present invention.The method includes：
Step 201, latticed auxiliary electrode is formed on substrate.
In the present embodiment, the mode that printing or vapor deposition may be used on the substrate 101 forms auxiliary electrode 102, this
Inventive embodiments do not limit this in detail, can be chosen according to actual conditions.Substrate 101 can include substrate 1011,
Black matrix 1012, color filter film 1013 and flatness layer 1014, as shown in Figure 3.
Step 202, spacer material is formed on the auxiliary electrode.
In the present embodiment, after forming auxiliary electrode 102, spacer material 103 is formed on a part of auxiliary electrode, it specifically can be with
The position of spacer material formation is determined according to the density of spacer material.The embodiment of the present invention does not limit this in detail, can be according to reality
Border situation is chosen.
Step 203, multiple protrusions are formed in bottom end of the spacer material far from the auxiliary electrode by patterning processes.
In the present embodiment, after forming spacer material 103, by patterning processes at bottom of the spacer material 103 far from auxiliary electrode 102
End forms multiple protrusions.Specifically, gluing, exposure, development are carried out to the bottom surface of spacer material, forms etched features, see Fig. 2 institutes
Show.The bottom end of spacer material 103 is performed etching by etching technics again, forms multiple protrusions.Optionally, the protrusion is rectangular
Body or cylinder.Protrusion can be 2~9.
Step 204, it is respectively formed conduction on the surface on the surface of the spacer material and the corresponding auxiliary electrode of the spacer material
Layer.
In the present embodiment, after multiple protrusions are formed in the bottom end of spacer material 103, conduction is formed on the surface of spacer material 103
Layer 104, conductive layer 104 envelope the protrusion of spacer material 103, while also to envelope the spacer material 103 corresponding auxiliary for conductive layer 104
Help the surface of electrode 102.The embodiment of the present invention does not limit the generation type of conductive layer in detail, can according to actual conditions into
Row is chosen.Conductive layer 104 can also coat the auxiliary electrode 102 that spacer material 103 is not formed, and the embodiment of the present invention does not make this
It limits, can be configured according to actual conditions in detail.
In conclusion in the embodiment of the present invention, latticed auxiliary electrode is formed on substrate, is formed on auxiliary electrode
Spacer material forms multiple protrusions by patterning processes in bottom end of the spacer material far from auxiliary electrode, the surface of spacer material and every
The surface of the corresponding auxiliary electrode of underbed is respectively formed conductive layer.The embodiment of the present invention makes auxiliary electrode on the cover board, can be with
Space is saved, reduces short-circuit risks；And the bottom end of spacer material is formed with multiple protrusions, reduces contact resistance, increases and rubs
Power is wiped, improves the reliability of contact.
Embodiment three
With reference to Fig. 5, show that an embodiment of the present invention provides a kind of display panels.The display panel is including backboard and such as
Cover board described in embodiment one；
Wherein, conductive layer 104 and institute of the auxiliary electrode 102 on the cover board by 103 convex surfaces of spacer material
Cathode 201 is stated to couple.
In the present embodiment, cover board and backboard form box display panel, and cover board includes auxiliary electrode 102,103 and of spacer material
Conductive layer 104, conductive layer 104 are coated on the surface of spacer material 103, including surface raised on spacer material 103, also envelope this
The surface of 103 corresponding auxiliary electrode 102 of spacer material；Backboard includes cathode 201.Auxiliary electrode 102 can by be coated on every
The conductive layer 104 on 103 surface of underbed is coupled with cathode 201.Protrusion on spacer material 103 causes conductive layer 104 and 201 coupling of cathode
The contact point connect is multiple, reduces contact resistance, increases frictional force, improves the reliability of contact.
In conclusion in the embodiment of the present invention, display panel includes backboard and cover board, and auxiliary electrode is prepared on cover board can be with
Space is saved, reduces short-circuit risks；The bottom end of spacer material is formed with multiple protrusions, reduces contact resistance, increases frictional force,
Improve the reliability of contact.
Example IV
An embodiment of the present invention provides a kind of display devices.The display device includes the display surface described in embodiment three
Plate.
The display panel includes backboard and the cover board as described in embodiment one；
Wherein, conductive layer 104 and institute of the auxiliary electrode 102 on the cover board by 103 convex surfaces of spacer material
Cathode 201 is stated to couple.
In the present embodiment, display device includes display panel, and display panel includes backboard and cover board, the spacer material on cover board
103 are formed with multiple protrusions in the bottom end far from auxiliary electrode 102, leading in the protrusion that auxiliary electrode 102 passes through spacer material 103
Electric layer 104 is coupled with the cathode 201 on backboard.Protrusion on spacer material 103 causes conductive layer 104 to be connect with what cathode 201 coupled
Contact is multiple, reduces contact resistance, increases frictional force, improves the reliability of contact.
In conclusion in the embodiment of the present invention, display device includes display panel, and display panel includes backboard and cover board,
Auxiliary electrode is prepared on cover board can save space, reduce short-circuit risks；The bottom end of spacer material is formed with multiple protrusions, reduces
Contact resistance increases frictional force, improves the reliability of contact.
Each embodiment in this specification is described by the way of progressive, the highlights of each of the examples are with
The difference of other embodiment, just to refer each other for identical similar part between each embodiment.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, commodity or equipment including a series of elements not only include that
A little elements, but also including other elements that are not explicitly listed or further include for this process, method, commodity or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except also there are other identical elements in the process including the element, method, commodity or equipment.
Above to a kind of cover board provided by the present invention and preparation method thereof, display panel and display device, carry out in detail
Thin to introduce, specific case used herein is expounded the principle of the present invention and embodiment, and above example is said
The bright method and its core concept for being merely used to help understand the present invention；Meanwhile for those of ordinary skill in the art, foundation
The thought of the present invention, there will be changes in specific embodiments and applications, in conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of cover board, which is characterized in that the cover board includes substrate, the latticed auxiliary electrode being formed on substrate, with
And it is formed in the spacer material on the auxiliary electrode；
Wherein, multiple protrusions are formed in bottom end of the spacer material far from the auxiliary electrode；
The surface of the spacer material and the surface of the corresponding auxiliary electrode of the spacer material are coated with conductive layer.
2. cover board according to claim 1, which is characterized in that the protrusion is in cuboid or cylinder.
3. cover board according to claim 1, which is characterized in that the protrusion is 2~9.
4. cover board according to claim 1, which is characterized in that the material of the auxiliary electrode is aluminium, in aluminium alloy, copper
It is at least one.
5. cover board according to claim 1, which is characterized in that the material of the conductive layer for ITO, IZO, nano silver, Al,
At least one of Al alloys, Mo, Cu, Ag alloy.
6. cover board according to claim 1, which is characterized in that the substrate include substrate, black matrix, color filter film and
Flatness layer.
7. a kind of production method of cover board, which is characterized in that the method includes：
Latticed auxiliary electrode is formed on substrate；
Spacer material is formed on the auxiliary electrode；
By patterning processes multiple protrusions are formed in bottom end of the spacer material far from the auxiliary electrode；
Conductive layer is respectively formed on the surface on the surface of the spacer material and the corresponding auxiliary electrode of the spacer material.
8. the method according to the description of claim 7 is characterized in that the protrusion is cuboid or cylinder.
9. a kind of display panel, which is characterized in that the display panel includes backboard and such as claim 1-6 any one of them
Cover board；
Wherein, the auxiliary electrode on the cover board is coupled by the conductive layer of the spacer material convex surfaces with the cathode.
10. a kind of display device, which is characterized in that the display device includes display panel as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005387.8A CN108231853A (en) | 2018-01-03 | 2018-01-03 | A kind of cover board and preparation method thereof, display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005387.8A CN108231853A (en) | 2018-01-03 | 2018-01-03 | A kind of cover board and preparation method thereof, display panel and display device |
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| Publication Number | Publication Date |
|---|---|
| CN108231853A true CN108231853A (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810005387.8A Pending CN108231853A (en) | 2018-01-03 | 2018-01-03 | A kind of cover board and preparation method thereof, display panel and display device |
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| CN (1) | CN108231853A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715231A (en) * | 2013-12-31 | 2014-04-09 | 京东方科技集团股份有限公司 | Organic light emitting display panel and display device |
| US20140110674A1 (en) * | 2012-10-19 | 2014-04-24 | Samsung Display Co., Ltd. | Organic light emitting display device and manufacturing method thereof |
| CN203812883U (en) * | 2014-05-09 | 2014-09-03 | 京东方科技集团股份有限公司 | OLED display panel and OLED display device applying same |
| CN107394052A (en) * | 2017-08-31 | 2017-11-24 | 京东方科技集团股份有限公司 | A kind of organic light emitting diode device and preparation method thereof, display device |
-
2018
- 2018-01-03 CN CN201810005387.8A patent/CN108231853A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140110674A1 (en) * | 2012-10-19 | 2014-04-24 | Samsung Display Co., Ltd. | Organic light emitting display device and manufacturing method thereof |
| CN103715231A (en) * | 2013-12-31 | 2014-04-09 | 京东方科技集团股份有限公司 | Organic light emitting display panel and display device |
| CN203812883U (en) * | 2014-05-09 | 2014-09-03 | 京东方科技集团股份有限公司 | OLED display panel and OLED display device applying same |
| CN107394052A (en) * | 2017-08-31 | 2017-11-24 | 京东方科技集团股份有限公司 | A kind of organic light emitting diode device and preparation method thereof, display device |
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Application publication date: 20180629 |
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