CN108475683A - Cathode composite layer, display screen and manufacturing method - Google Patents
Cathode composite layer, display screen and manufacturing method Download PDFInfo
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- CN108475683A CN108475683A CN201780004661.3A CN201780004661A CN108475683A CN 108475683 A CN108475683 A CN 108475683A CN 201780004661 A CN201780004661 A CN 201780004661A CN 108475683 A CN108475683 A CN 108475683A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
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- 239000010410 layer Substances 0.000 claims description 264
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- 229910021389 graphene Inorganic materials 0.000 claims description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 2
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1259—Multistep manufacturing methods
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
A kind of cathode composite layer (10).Cathode composite layer (10) is used for display screen (100).Cathode composite layer (10) includes the first cathode layer (12), the second cathode layer (14) and third cathode layer (16).First cathode layer (12) is formed by the metal of low work function.Second cathode layer (14) is arranged on the first cathode layer (12), and the second cathode layer (14) is made by having malleable first conductive film.Third cathode layer (16) is arranged on the second cathode layer (14), and third cathode layer (16) is made of the second transparent conductive film.First cathode layer (12), the second cathode layer (14) and third cathode layer (16) form saw wheel occlusion structure.Also disclose a kind of display screen (100) and manufacturing method.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of cathode composite layer, display screen and manufacturing method.
Background technology
The buckle resistance of flexible display substrates directly determines the service life of flexible display screen.The cathode of flexible display substrates exists
Configuration on flexible display screen is generally large stretch of Metal Distribution, when flexible display substrates are bent, is very easy to occur cloudy
The case where pole metal fracture, causes cathode potential to be unevenly distributed in the whole face of flexible display screen and generates showing for uneven color
As to influence the yield of product.
Invention content
A kind of cathode composite layer of embodiment of the present invention offer, display screen and manufacturing method.
The cathode composite layer of embodiment of the present invention, is used for display screen, and the cathode composite layer includes：
The first cathode layer formed by the metal of low work function；
The second cathode layer on first cathode layer is set, and second cathode layer is led by tool malleable first
Conductive film is made；
Third cathode layer on second cathode layer is set, and the third cathode layer is by the second transparent conductive film
It is made, first cathode layer, second cathode layer and the third cathode layer form saw wheel occlusion structure.
In the cathode composite layer of embodiment of the present invention, the first cathode layer, the second cathode layer and third cathode layer form saw
Therefore wheel occlusion structure when display screen is bent, can disperse cathode composite layer stress distribution from stereoscopic three-dimensional structure, from
And farthest play the role of bend resistance.
In some embodiments, second cathode layer is in cellular, it is described it is cellular include multiple mesh, described the
Three cathode layers include the negative pole part for filling the mesh.
In some embodiments, the negative pole part connects first cathode layer.
In some embodiments, first conductive film includes graphene.
In some embodiments, the area of the third cathode layer is more than the area of second cathode layer, and described the
The area of two cathode layers is more than the area of first cathode layer.
In some embodiments, the area of the third cathode layer is less than the area of second cathode layer, and described the
The area of two cathode layers is less than the area of first cathode layer.
The display screen of embodiment of the present invention includes the cathode composite layer of embodiment of the present invention.
In the display screen of embodiment of the present invention, the first cathode layer, the second cathode layer and third cathode layer form saw wheel and sting
Therefore close structure when display screen is bent, can disperse cathode composite layer stress distribution from stereoscopic three-dimensional structure, to most
Play the role of bend resistance to big degree.
In some embodiments, the display screen includes：
Anode layer；With
Luminescent layer on the anode layer is set, and the cathode composite layer setting is on the light-emitting layer.
In some embodiments, second cathode layer is in cellular, it is described it is cellular include multiple mesh, described the
Three cathode layers include the negative pole part for filling the mesh.
In some embodiments, the negative pole part connects first cathode layer.
In some embodiments, first conductive film includes graphene.
In some embodiments, the area of the third cathode layer is more than the area of second cathode layer, and described the
The area of two cathode layers is more than the area of first cathode layer.
In some embodiments, the area of the third cathode layer is less than the area of second cathode layer, and described the
The area of two cathode layers is less than the area of first cathode layer.
In some embodiments, the display screen includes display area, and the area of first cathode layer is more than described
The area of display area.
The manufacturing method of embodiment of the present invention, for manufacturing cathode composite layer, the manufacturing method includes：
The first cathode layer is provided, first cathode layer is the metal of low work function；
The second cathode layer is formed on first cathode layer, second cathode layer is conductive by having malleable first
Film is made；With
Third cathode layer is formed on second cathode layer, the third cathode layer is by the second transparent conductive film system
At first cathode layer, second cathode layer and the third cathode layer form saw wheel occlusion structure.
In the manufacturing method of embodiment of the present invention, the first cathode layer, the second cathode layer and third cathode layer form saw wheel
Therefore occlusion structure when display screen is bent, can disperse cathode composite layer stress distribution from stereoscopic three-dimensional structure, to
Farthest play the role of bend resistance.
In some embodiments, described to form the second cathode layer on first cathode layer and include：
Second cathode layer is formed on latticed supporter；
Gap location gluing on second cathode layer, between the gap and above support of the second cathode interlayer；
Removal above support carries second cathode layer of colloid to be formed；
Second cathode layer with the colloid is arranged on first cathode layer；With
Remove the colloid.
In some embodiments, second cathode layer is in cellular, it is described it is cellular include multiple mesh, described the
Three cathode layers include the negative pole part for filling the mesh.
In some embodiments, the negative pole part connects first cathode layer.
In some embodiments, first conductive film includes graphene.
In some embodiments, the area of the third cathode layer is more than the area of second cathode layer, and described the
The area of two cathode layers is more than the area of first cathode layer.
In some embodiments, the area of the third cathode layer is less than the area of second cathode layer, and described the
The area of two cathode layers is less than the area of first cathode layer.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention can be from the description in conjunction with following accompanying drawings to embodiment
It will be apparent and be readily appreciated that, wherein：
Fig. 1 is the schematic cross-section of the cathode composite layer of embodiment of the present invention；
Schematic cross-section when Fig. 2 is the cathode composite layer stress bending of embodiment of the present invention；
Fig. 3 is the flow diagram of the manufacturing method of embodiment of the present invention；
Fig. 4 is the schematic cross-section of the display screen of embodiment of the present invention；
Fig. 5 is the flow diagram of the manufacturing method of another embodiment of the present invention；
Fig. 6 is the process flow diagram of the manufacturing method of embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the second cathode layer of embodiment of the present invention；
Fig. 8 is the floor map of the display screen of embodiment of the present invention；
Main element and symbol description：
Cathode composite layer 10, the first cathode layer 12, the second cathode layer 14, mesh 142, third cathode layer 16, negative pole part
162, anode layer 20, luminescent layer 30, outline border 40, display area 50, display screen 100.
Specific implementation mode
Embodiments of the present invention are described below in detail, the example of embodiment is shown in the accompanying drawings, wherein identical or class
As label indicate same or similar element or element with the same or similar functions from beginning to end.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of embodiments of the present invention, it is to be understood that term "center", " longitudinal direction ", " transverse direction ", " length
Degree ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner",
The orientation or positional relationship of the instructions such as "outside", " clockwise ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, only
It is embodiments of the present invention and simplified description for ease of description, does not indicate or imply the indicated device or element is necessary
With specific orientation, with specific azimuth configuration and operation, therefore should not be understood as the limitation to embodiments of the present invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance or implicit
Indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or impliedly wrap
Include one or more feature.In the description of embodiments of the present invention, the meaning of " plurality " is two or two
More than, unless otherwise specifically defined.
In the description of embodiments of the present invention, it should be noted that unless otherwise clearly defined and limited, term
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, can also be to be electrically connected or can mutually communicate；It can be directly connected, can also lead to
It crosses intermediary to be indirectly connected, can be the interaction relationship of the connection or two elements inside two elements.For ability
For the those of ordinary skill in domain, it can understand that above-mentioned term in embodiments of the present invention specific contains as the case may be
Justice.
In embodiments of the present invention unless specifically defined or limited otherwise, fisrt feature second feature it
"upper" or "lower" may include that the first and second features are in direct contact, can also include the first and second features not be directly to connect
It touches but passes through the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " on
Face " includes fisrt feature right over second feature and oblique upper, or to be merely representative of fisrt feature level height special higher than second
Sign.Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward
Side, or be merely representative of fisrt feature level height and be less than second feature.
Following disclosure provides many different embodiments or example is used for realizing embodiments of the present invention not
Same structure.In order to simplify the disclosure of embodiments of the present invention, hereinafter the component of specific examples and setting are described.When
So, they are merely examples, and is not intended to limit the present invention.In addition, embodiments of the present invention can be in different examples
Repeat reference numerals and/or reference letter in son, this repetition are for purposes of simplicity and clarity, itself not indicate to be begged for
By the relationship between various embodiments and/or setting.In addition, the various specific techniques that embodiments of the present invention provide
With the example of material, but make those of ordinary skill in the art may realize that the application of other techniques and/or other materials
With.
It please refers to Fig.1 and Fig. 2, the cathode composite layer 10 of embodiment of the present invention is used for display screen 100.Cathode composite layer 10
Including the first cathode layer 12, the second cathode layer 14 and third cathode layer 16.First cathode layer 12 is formed by the metal of low work function.
Second cathode layer 14 is arranged on the first cathode layer 12, and the second cathode layer 14 is made by having malleable first conductive film.
Third cathode layer 16 is arranged on the second cathode layer 14, and third cathode layer 16 is made of the second transparent conductive film.First is cloudy
Pole the 12, second cathode layer 14 of layer and third cathode layer 16 form saw wheel occlusion structure.
Referring to Fig. 3, the manufacturing method of embodiment of the present invention is for manufacturing cathode composite layer 10.Manufacturing method includes：
Step S12：The first cathode layer 12 is provided, the first cathode layer 12 is the metal by low work function；
Step S14：Form the second cathode layer 14 on the first cathode layer 12, the second cathode layer 14 is by having malleable the
One conductive film is made；
Step S16：Third cathode layer 16 is formed on the second cathode layer 14, third cathode layer 16 is conductive by transparent second
Film is made, and the first cathode layer 12, the second cathode layer 14 and third cathode layer 16 form saw wheel occlusion structure.
The manufacturing method of embodiment of the present invention can be used for manufacturing the cathode composite layer 10 of embodiment of the present invention.For example,
Step S12 may be used to provide the first cathode layer 12, and step S14 can be used for that the second cathode layer 14 is arranged, and step S16 can be used
In setting third cathode layer 16.
In the cathode composite layer 10 and manufacturing method of embodiment of the present invention, the first cathode layer 12,14 and of the second cathode layer
Therefore third cathode layer 16 forms saw wheel occlusion structure when display screen 100 is bent, can disperse from stereoscopic three-dimensional structure
10 stress distribution of cathode composite layer, to farthest play the role of bend resistance.
In one example, the first cathode layer 12 can be by being deposited OLED (Organic Light-
Emitting Diode, Organic Light Emitting Diode) material display substrate on vapor deposition one layer of low work function metal formed.Specifically
Ground, the metal of low work function can be the one of which in magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminium, silver, tin, lead etc.,
Or can be the alloy of above-mentioned metal.Second cathode layer 14 can be deposited by preferable first conductive film of ductility and be formed.
Third cathode layer 16 can be deposited by the second transparent conductive film and be formed.The method of vapor deposition can be thermal evaporation deposition or electron beam
Vapour deposition method etc..The method of deposition can be physical vaporous deposition etc..Wherein, the first conductive film can deposit to form some figures
Shape (for example, zigzag pattern or cellular figure etc.), so that the first cathode layer 12, the second cathode layer 14 and third cathode
Layer 16 forms saw wheel occlusion structure.
It should be pointed out that the forming method of the first cathode layer 12, the second cathode layer 14 and third cathode layer 16 is not limited to
For the method for the method and deposition of vapor deposition, can also be formed using other conventional methods.
In some embodiments, display screen 100 includes the cathode composite layer 10 of the above embodiment.In this way, display screen
The bending resistance of 100 cathode composite layer 10 is preferable.
Referring to Fig. 4, in some embodiments, display screen 100 includes anode layer 20 and luminescent layer 30,30 shape of luminescent layer
At on anode layer 20.Cathode composite layer 10 is formed on luminescent layer 30.
Specifically, display screen 100 can be that LCD (Liquid Crystal Display, liquid crystal display) or flexible is aobvious
Display screen, flexible display screen can be AMOLED (Active-matrix organic light emitting diode, active matrix
Organic light emitting diode) etc. display screens.
Fig. 5 and Fig. 6 are please referred to, in some embodiments, step S14 includes：
Step S141：The second cathode layer 14 is formed on latticed supporter；
Step S142：Gap on the second cathode layer 14, between the second cathode layer 14 and the gap location between supporter apply
Glue；
Step S143：Removal supporter carries the second cathode layer 14 of colloid to be formed；
Step S144：The second cathode layer 14 with colloid is arranged on the first cathode layer 12；
Step S145：Remove colloid.
In this way, manufacture easy to process, and be conducive to the stabilization of 14 structure of the second cathode layer.
In some embodiments, step S145 passes through orthogonal photoetching (orthogonal photolithography)
Method removes colloid.In this way, the process of removal colloid will not impact organic matter and metal, because without destroying above-mentioned tool
There are the display substrate and the first cathode layer 12 of display material.Display material is, for example, OLED material.
In some embodiments, latticed supporter can be latticed copper foil.
It please refers to Fig.1 and Fig. 7, in some embodiments, the second cathode layer 14 is in cellular.Cellular includes multiple nets
Hole 142.Third cathode layer 16 includes the negative pole part 162 of filling mesh 142.
In this way, the first cathode layer 12 and third cathode layer 16 form saw wheel occlusion knot by cellular second cathode layer 14
Structure, preferably to cope with stress impact when display screen 100 is bent.Negative pole part 162 fills mesh 142 so that cathode composite layer 10
Stable structure.
In one example, mesh 142 is in regular polygon, such as regular hexagon.Multiple mesh 142 are neatly arranged.
In some embodiments, negative pole part 162 connects the first cathode layer 12.
In this way, negative pole part 162 can protect 12 surface of the first cathode layer, play the role of that water oxygen is isolated.
In some embodiments, the first conductive film includes graphene.
Specifically, grapheme material has that intensity is big, flexibility is good, conduct electricity very well, thickness is small, stable structure etc. is excellent
Point.When the second cathode layer 14 is formed by grapheme material, the thickness of the entirety of cathode composite layer 10 can be made smaller, bend resistance
Performance is good.Moreover, when display screen 100 is bent, even if the first cathode layer 12 or third cathode layer 16 are broken, can also lead to
It crosses the preferable graphene of electric conductivity to be bridged, the electrical of display screen 100 remains good, into without answering due to cathode
The Potential distribution for closing layer 10 it is uneven and the phenomenon that lead to uneven color.
Referring to Fig. 8, in some embodiments, the area of third cathode layer 16 is more than the area of the second cathode layer 14,
The area of second cathode layer 14 is more than the area of the first cathode layer 12.
It is appreciated that in order to expand the usable floor area of display screen 100, user-friendly, display screen 100 is general inwardly curved
Folding is bent along third cathode layer 16 to the direction of the first cathode layer 12, third cathode layer 16, the second cathode layer 14 and first are cloudy
The area of pole layer 12, which is sequentially reduced, can ensure that the stress of the every bit of cathode composite layer 10 all divides when display screen 100 is bent
It is scattered to from all directions, into without the uneven phenomenon in edge color pool.
Certainly, in other embodiments, the area of third cathode layer 16 is smaller than the area of the second cathode layer 14, and second
The area of cathode layer 14 is smaller than the area of the first cathode layer 12.In this way, being convenient for 100 outward bending of display screen, i.e., along first the moon
Pole layer 12 is bent to the direction of third cathode layer 16.
Please continue to refer to Fig. 8, in some embodiments, display screen 100 includes display area 50, the first cathode layer 12
Area is more than the area of display area 50.
So, it is ensured that each point in display area 50 can effectively be shown.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means the tool described in conjunction with the embodiment or example
Body characteristics, structure, material or feature are contained at least one embodiment or example of the present invention.In the present specification,
Schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific features of description, knot
Structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, include according to involved function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (system of such as computer based system including processing module or other can be from instruction
Execute system, device or equipment instruction fetch and the system that executes instruction) use, or combine these instruction execution systems, device or
Equipment and use.For the purpose of this specification, " computer-readable medium " can be it is any can include, store, communicating, propagating or
Transmission program uses for instruction execution system, device or equipment or in conjunction with these instruction execution systems, device or equipment
Device.The more specific example (non-exhaustive list) of computer-readable medium includes following：With one or more wiring
Electrical connection section (control method), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or when necessary with it
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of embodiments of the present invention can be with hardware, software, firmware or combination thereof come real
It is existing.In the above-described embodiment, multiple steps or method can use storage in memory and by suitable instruction execution system
The software or firmware of execution is realized.For example, if realized with hardware, in another embodiment, ability can be used
Any one of following technology or their combination well known to domain are realized：With for realizing logic function to data-signal
The discrete logic of logic gates, the application-specific integrated circuit with suitable combinational logic gate circuit, programmable gate array
(PGA), field programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that realize all or part of step that above-described embodiment method carries
Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium
In matter, which includes the steps that one or a combination set of embodiment of the method when being executed.
In addition, each functional unit in various embodiments of the present invention can be integrated in a processing module, also may be used
To be that each unit physically exists alone, can also two or more units be integrated in a module.It is above-mentioned integrated
The form that hardware had both may be used in module is realized, can also be realized in the form of software function module.The integrated module
If being realized in the form of software function module and when sold or used as an independent product, a calculating can also be stored in
In machine read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
Although embodiments of the present invention have been shown and described above, it is to be understood that the above embodiment is
Illustratively, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be right
Above-mentioned implementation implementation is changed, changes, replacing and modification.
Claims (21)
1. a kind of cathode composite layer, it to be used for display screen, which is characterized in that the cathode composite layer includes：
The first cathode layer formed by the metal of low work function；
The second cathode layer on first cathode layer is set, and second cathode layer is by having malleable first conductive thin
Film is made；
Third cathode layer on second cathode layer is set, and the third cathode layer is by the second transparent conductive film system
At first cathode layer, second cathode layer and the third cathode layer form saw wheel occlusion structure.
2. cathode composite layer as described in claim 1, which is characterized in that second cathode layer is in cellular, the honeycomb
Shape includes multiple mesh, and the third cathode layer includes the negative pole part for filling the mesh.
3. cathode composite layer as claimed in claim 2, which is characterized in that the negative pole part connects first cathode layer.
4. cathode composite layer as described in claim 1, which is characterized in that first conductive film includes graphene.
5. cathode composite layer as described in claim 1, which is characterized in that the area of the third cathode layer is more than described second
The area of cathode layer, the area of second cathode layer are more than the area of first cathode layer.
6. cathode composite layer as described in claim 1, which is characterized in that the area of the third cathode layer is less than described second
The area of cathode layer, the area of second cathode layer are less than the area of first cathode layer.
7. a kind of display screen, which is characterized in that including cathode composite layer described in claim 1.
8. display screen as claimed in claim 7, which is characterized in that the display screen includes：
Anode layer；With
Luminescent layer on the anode layer is set, and the cathode composite layer setting is on the light-emitting layer.
9. display screen as claimed in claim 7, which is characterized in that second cathode layer is in cellular, the cellular packet
Multiple mesh are included, the third cathode layer includes the negative pole part for filling the mesh.
10. display screen as claimed in claim 9, which is characterized in that the negative pole part connects first cathode layer.
11. display screen as claimed in claim 7, which is characterized in that first conductive film includes graphene.
12. display screen as claimed in claim 7, which is characterized in that it is cloudy that the area of the third cathode layer is more than described second
The area of pole layer, the area of second cathode layer are more than the area of first cathode layer.
13. display screen as claimed in claim 7, which is characterized in that it is cloudy that the area of the third cathode layer is less than described second
The area of pole layer, the area of second cathode layer are less than the area of first cathode layer.
14. display screen as claimed in claim 12, which is characterized in that the display screen includes display area, and described first is cloudy
The area of pole layer is more than the area of the display area.
15. a kind of manufacturing method, for manufacturing cathode composite layer, which is characterized in that the manufacturing method includes：
The first cathode layer is provided, first cathode layer is the metal of low work function；
The second cathode layer is formed on first cathode layer, second cathode layer is by having malleable first conductive film
It is made；With
Third cathode layer is formed on second cathode layer, the third cathode layer is made of the second transparent conductive film,
First cathode layer, second cathode layer and the third cathode layer form saw wheel occlusion structure.
16. manufacturing method as claimed in claim 15, which is characterized in that described to form second the moon on first cathode layer
Pole layer includes：
Second cathode layer is formed on latticed supporter；
Gap location gluing on second cathode layer, between the gap and above support of the second cathode interlayer；
Removal above support carries second cathode layer of colloid to be formed；
Second cathode layer with the colloid is arranged on first cathode layer；With
Remove the colloid.
17. manufacturing method as claimed in claim 15, which is characterized in that second cathode layer is in cellular, the honeycomb
Shape includes multiple mesh, and the third cathode layer includes the negative pole part for filling the mesh.
18. manufacturing method as claimed in claim 17, which is characterized in that the negative pole part connects first cathode layer.
19. the manufacturing method as described in claim 15 or 16, which is characterized in that first conductive film includes graphene.
20. manufacturing method as claimed in claim 15, which is characterized in that the area of the third cathode layer is more than described second
The area of cathode layer, the area of second cathode layer are more than the area of first cathode layer.
21. manufacturing method as claimed in claim 15, which is characterized in that the area of the third cathode layer is less than described second
The area of cathode layer, the area of second cathode layer are less than the area of first cathode layer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/086890 WO2018218626A1 (en) | 2017-06-01 | 2017-06-01 | Cathode composite layer, display screen and manufacturing method |
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| CN108475683A true CN108475683A (en) | 2018-08-31 |
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| Publication number | Publication date |
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| WO2018218626A1 (en) | 2018-12-06 |
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