CN108428724A - Display base plate mother matrix, display base plate and preparation method thereof and application - Google Patents
Display base plate mother matrix, display base plate and preparation method thereof and application Download PDFInfo
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- CN108428724A CN108428724A CN201810272225.0A CN201810272225A CN108428724A CN 108428724 A CN108428724 A CN 108428724A CN 201810272225 A CN201810272225 A CN 201810272225A CN 108428724 A CN108428724 A CN 108428724A
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- base plate
- display base
- heat
- conducting layer
- 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
- H10K59/80—Constructional details
- H10K59/88—Dummy elements, i.e. elements having non-functional features
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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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- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present invention proposes display base plate mother matrix, display base plate and preparation method thereof, display panel and display device.The display base plate mother matrix includes：Substrate limits multiple effective coverages on the substrate, and constitutes cutting region between two neighboring effective coverage；Heat-conducting layer is arranged on a surface of substrate and in cutting region.Display base plate mother matrix proposed by the invention, heat-conducting layer is designed in cutting region on its substrate, so as to quickly conduct and remove the heat near cutting path, and then the heat affecting of the energy conduction generated when laser cutting and radiation to the functional film layer in effective coverage can be reduced, the yields higher of display base plate is obtained after so that the display base plate mother matrix is cut.
Description
Technical field
The present invention relates to display panel manufacturing technology fields, specifically, the present invention relates to display base plate mother matrix, display base plates
And preparation method thereof and application.More specifically, the present invention relates to display base plate mother matrix, display base plate and preparation method thereof, displays
Panel and display device.
Background technology
Currently, when Organic Light Emitting Diode (OLED) flexible panel carries out integral cutting, the laser of high-energy density is being cut
While cutting separation panel film layer, also has a large amount of energy conduction and radiate into viewing area, to be easy to cause the film of part
Layer is heated to be generated separation and generates defect, even fails.Specifically for example, with reference to figure 1, since radium-shine laser is in cutting area (areas C)
The heat affecting of generation, heat r can be conducted, to be easy to cause the cathode 500 and organic light emission at encapsulation region (areas A) edge
400 layer separations, and then will produce the technical problems such as package failure.
Therefore, laser cutting means at this stage still have much room for improvement.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.
The present invention is the following discovery based on inventor and completes：
The present inventor has found in the course of the research, can introduce heat conduction in the cutting region on the substrate of display base plate mother matrix
Layer so as to quickly conduct and remove the heat near cutting path, and then reduces the conduction and radiation generated when laser cutting
Heat affecting to the functional film layer in effective coverage.
In view of this, an object of the present invention is to provide a kind of energy conductions reducing laser cutting and radiation to work(
The heat affecting of energy film layer, cutting efficiency do not reduce or show the higher display base plate mother matrix of quality.
In the first aspect of the present invention, the present invention proposes a kind of display base plate mother matrix.
According to an embodiment of the invention, the display base plate mother matrix includes：Substrate, limit on the substrate it is multiple effectively
Region, and constitute cutting region between the two neighboring effective coverage；Heat-conducting layer, the heat-conducting layer are arranged in the substrate
On one surface and in the cutting region.
Inventor has found, the display base plate mother matrix of the embodiment of the present invention, and heat-conducting layer is designed in the cutting region on substrate,
So as to quickly conduct and remove the heat near cutting path, and then the energy conduction generated when laser cutting and spoke can be reduced
The heat affecting to the functional film layer in effective coverage is penetrated, the non-defective unit of display base plate is obtained after so that the display base plate mother matrix is cut
Rate higher.
In addition, display base plate mother matrix according to the above embodiment of the present invention, can also have following additional technical characteristic：
According to an embodiment of the invention, the heat-conducting layer is formed by metal.
According to an embodiment of the invention, the heat-conducting layer is provided with void region, and the void region is over the substrate
Orthographic projection and cutting path it is least partially overlapped.
According to an embodiment of the invention, the void region includes the hollow out that at least one row are distributed along the cutting path
Graphical set, a row hollow out figure group includes multiple spaced hollow out figure.
According to an embodiment of the invention, hollow out figure group described in multiple row is arranged in honeycomb.
In the second aspect of the present invention, the present invention proposes a kind of method making display base plate.
According to an embodiment of the invention, the method includes：Substrate is provided, multiple effective districts are limited on the substrate
Domain, and form cutting region between the two neighboring effective coverage；Heat-conducting layer is formed on a surface of the substrate, and
The heat-conducting layer is within the cutting region；The heat-conducting layer is cut by laser along cutting path, to obtain
State display base plate.
Inventor has found, using the production method of the embodiment of the present invention, is cut carrying out laser to the cutting region on substrate
When cutting, since heat-conducting layer can quickly conduct and remove the heat near cutting path, and then energy conduction and radiation pair can be reduced
The heat affecting of functional film layer in effective coverage makes the yields higher of acquisition display base plate after cutting.
In addition, production method according to the above embodiment of the present invention, can also have following additional technical characteristic：
According to an embodiment of the invention, after the formation heat-conducting layer, further comprise：It is formed on the heat-conducting layer
Void region, and the orthographic projection of the void region over the substrate and cutting path are least partially overlapped.
In the third aspect of the present invention, the present invention proposes a kind of display base plate.
According to an embodiment of the invention, the display base plate is obtained by above-mentioned method.
Inventor has found that the display base plate of the embodiment of the present invention, the heat affecting of functional film layer structure stimulated light cutting is more
It is small, to make the yields higher of the display base plate.It will be appreciated to those of skill in the art that showing base above for making
Feature and advantage described in the method for plate are still applied to the display base plate, and details are not described herein.
In the fourth aspect of the present invention, the present invention proposes a kind of display panel.
According to an embodiment of the invention, the display panel includes above-mentioned display base plate.
Inventor it was unexpectedly observed that the embodiment of the present invention display panel, the making yields higher of display base plate, from
And make the stability in use higher of the display panel.It will be appreciated to those of skill in the art that above for display base plate institute
The feature and advantage of description are still applied to the display panel, and details are not described herein.
In the fifth aspect of the present invention, the present invention proposes a kind of display device.
According to an embodiment of the invention, the display device includes above-mentioned display panel.
Inventor it was unexpectedly observed that the embodiment of the present invention display device, the stability in use higher of display panel, from
And the display device can be made the service life is longer.It will be appreciated to those of skill in the art that above for display base plate, showing
Show feature and advantage described in panel, is still applied to the display device, details are not described herein.
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 will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the schematic diagram that the energy conduction when prior art is cut by laser influences functional film layer structure；
Fig. 2 is the overlooking structure diagram of the display base plate mother matrix of one embodiment of the invention；
Fig. 3 is the cross-sectional structure schematic diagram of the display base plate mother matrix of one embodiment of the invention；
Fig. 4 is the overlooking structure figure of void region on the heat-conducting layer of one embodiment of the invention；
Fig. 5 is the overlooking structure figure of void region on the heat-conducting layer of another embodiment of the present invention；
Fig. 6 is the method flow schematic diagram of the making display base plate of one embodiment of the invention.
Reference numeral
100 substrates
C cutting regions
A packaging areas
The effective coverages B
L laser
200 buffer layers
300 metal carbonyl conducting layers
400 organic luminous layers
500 cathodes
600 column obstacles
710 the first inorganic layers of thin-film package
720 thin-film package organic layers
730 the second inorganic layers of thin-film package
800 heat-conducting layers
810 void regions
811 hollow out figure
DD cutting paths
Specific implementation mode
The embodiment of the present invention is described below in detail, those skilled in the art is it will be appreciated that following example is intended for solving
The present invention is released, and is not construed as limitation of the present invention.Unless stated otherwise, it is not expressly recited in embodiment below specific
Technology or condition, those skilled in the art can be according to common technology in the art or condition or according to product description
It carries out.
In one aspect of the invention, the present invention proposes a kind of display base plate mother matrix.With reference to Fig. 2~5, to the present invention's
Display base plate mother matrix is described in detail.
According to an embodiment of the invention, with reference to Fig. 2~3, which includes substrate 100 and heat-conducting layer 800；Its
In, multiple effective coverage B are limited on substrate 100, and cutting region C is constituted between two neighboring effective coverage B；And heat-conducting layer
800 are arranged on a surface of substrate 100 and in cutting region C.It should be noted that " effective coverage " tool herein
Body refers to the region of reservation after laser cutting.
It was found by the inventors of the present invention that the laser of high-energy density has a large amount of energy when cutting detaches panel film layer
Viewing area is conducted and be radiated to amount, and the film layer to be easy to cause part is heated to be generated separation and generate defect, even fails.Institute
With, heat-conducting layer is arranged in the cutting region of inventor on substrate, quickly to conduct and remove the heat near cutting path, to
The heat affecting of the energy conduction and radiation that are generated when laser cutting to the functional film layer in effective coverage can be reduced, and then keeps this aobvious
Show the yields higher that display base plate is obtained after substrate mother matrix is cut.
According to an embodiment of the invention, which is not particularly limited, as long as the material is led
The height of hot coefficient and specific heat ratio substrate material, those skilled in the art can according to the specific energy density of laser cutting into
Row correspondingly selects.In some embodiments of the invention, heat-conducting layer 800 can be formed by metal, in this way, using heat absorption
Soon, the heat-conducting layer 800 that the metal material of rapid heat dissipation is formed, more effectively can quickly conduct and remove the heat near cutting path
Amount to which fully assurance function film layer is from the heat affecting of laser cutting, and then can further promote the non-defective unit of display base plate
Rate.According to an embodiment of the invention, the specific type of metal is not particularly limited, specifically such as silver, copper, aluminium or molybdenum, this
Field technology personnel can select according to the specific production method of heat-conducting layer 800.
According to an embodiment of the invention, which is also provided with void region 810, and void region 810 is serving as a contrast
Orthographic projection and cutting path DD on bottom 100 is least partially overlapped.It should be noted that " cutting path " specifically refers to herein
The inswept region of laser facula in cutting process, and " partially overlapping " specifically refers to the inswept void regions cutting path DD 810.Such as
This, the void region 810 being arranged on heat-conducting layer 800 does not interfere with the efficiency of laser cutting in laser cutting process.
According to an embodiment of the invention, the concrete shape of void region 810 is not particularly limited, as long as void region
810 is least partially overlapped with cutting path DD, and those skilled in the art can carry out corresponding according to specific cutting path DD
It designs on ground.In some embodiments of the invention, with reference to Fig. 4 and Fig. 5, void region 810 (not marked in figure) may include at least
The hollow out figure group that one row are distributed along cutting path DD, a row hollow out figure group may also include multiple spaced hollow out figures
Shape 811 does not interfere with the efficiency of laser cutting script also in this way, while can fully ensuring that quickly conduction laser cutting heat.
According to an embodiment of the invention, the specific columns of hollow out figure group is not particularly limited in void region 810, this
Field technology personnel can correspondingly be set according to the actual width of cutting path DD and 811 specific size of hollow out figure
Meter.According to an embodiment of the invention, specific between the specific size of hollow out figure 811 and two neighboring hollow out figure 811
Gap size is not particularly limited, and those skilled in the art can carry out phase according to 800 specific material of heat-conducting layer and thickness
It designs and adjusts with answering, details are not described herein.
In some specific examples, with reference to Fig. 4, void region 810 (not marked in figure) may include a row hollow out figure group,
It includes multiple spaced hollow out figure 811, in this way, the row hollow out figure 811 passed through by cutting path DD, is being realized
While heat conduction function, the efficiency of laser cutting script is not interfered with also.In other specific examples, with reference to Fig. 5, vacancy section
Domain 810 (not marked in figure) may include multiple row hollow out figure group comprising multiple spaced hollow out figure 811, also, it is more
Row hollow out figure group is arranged in honeycomb, in this way, the multiple row hollow out figure 811 passed through by cutting path DD, fully real
While now quickly conduction is cut by laser heat, the efficiency of laser cutting script is not interfered with more.
According to an embodiment of the invention, 811 specific shape of hollow out figure is not particularly limited, it is specifically for example round or
Hexagon etc., the complexity that those skilled in the art can form pierced pattern according to heat-conducting layer 800 are correspondingly designed.
In some embodiments of the present invention, with reference to Fig. 4 and Fig. 5, hollow out figure 811 can be hexagon, in this way, at least one row of composition
The space availability ratio highest of hollow out figure group, so as to ensure quickly conduction laser cutting heat simultaneously and do not reduce laser cutting
Efficiency.
It should be noted that the display base plate mother matrix other than substrate 100 and heat-conducting layer 800, is gone back in the B of effective coverage
The functional film layer structure that may be provided with multilayer, by taking the display base plate mother matrix of OLED as an example, specifically for example anode, luminescent layer, cathode,
Metal carbonyl conducting layer, column obstacle, thin-film package inorganic layer and thin-film package organic layer etc., those skilled in the art can be according to this
The particular use of display base plate carries out correspondingly supplement and perfect, and details are not described herein.
According to an embodiment of the invention, 800 specific thickness of heat-conducting layer is not particularly limited, and those skilled in the art can
It is correspondingly adjusted according to the specific energy density of the specific material of heat-conducting layer 800 and laser cutting.In some of the present invention
In embodiment, heat-conducting layer 800 can be arranged with metal carbonyl conducting layer, cathode or anode same layer, in this way, increasing without additional
Cost of manufacture of the new mask plate of heat-conducting layer 800 without excessively increasing display base plate, also, the material and thickness of heat-conducting layer 800
Degree is all identical as metal carbonyl conducting layer, cathode or anode.
In conclusion according to an embodiment of the invention, the present invention proposes a kind of display base plate mother matrix, cutting on substrate
Design heat-conducting layer in region is cut, so as to quickly conduct and remove the heat near cutting path, and then laser cutting can be reduced
When the heat affecting to the functional film layer in effective coverage of the energy conduction that generates and radiation, so that the display base plate mother matrix is cut
The yields higher of display base plate is obtained afterwards.
In another aspect of the present invention, the present invention proposes a kind of method making display base plate.It is according to the present invention
Embodiment, with reference to Fig. 6, which includes：
S100：Substrate is provided.
In this step, substrate 100 is provided, multiple effective coverage B are limited on the substrate 100, and two neighboring effective
Cutting region C is formed between the B of region.In this way, effective coverage B is reserved as the display base plate after cutting.
According to an embodiment of the invention, the specific sizes of effective coverage B and the specific width of cutting region C, not by spy
Other limitation, those skilled in the art can carry out phase according to the actual size of display base plate and the specific technological parameter of laser cutting
It designs with answering, details are not described herein.
S200：Heat-conducting layer is formed on a surface of substrate.
In this step, heat-conducting layer 800 is formed on a surface of substrate 100, and heat-conducting layer 800 is in cutting region C
Within.It, can be quick in follow-up be cut by laser in this way, in the heat-conducting layer 800 that the cutting region C of substrate 100 is formed
The heat near cutting path is conducted and removes, the energy conduction generated when so as to reduce laser cutting and radiation are to effective
The heat affecting of functional film layer in region.Also, the product that the step obtains can refer to Fig. 2~3.
Functional film layer is formed in the effective coverage B of substrate 100 it should be noted that may additionally include after step sloo
Structure is specifically for example respectively formed anode, luminescent layer, cathode, metal carbonyl conducting layer, envelope by taking the display base plate mother matrix of OLED as an example
The step of cap rock, organic film, pixel defining layer, column obstacle, thin-film package inorganic layer and thin-film package organic layer etc., this
Field technology personnel can correspondingly be designed according to the concrete structure of the display base plate mother matrix.
According to an embodiment of the invention, the specific method for forming heat-conducting layer 800 is not particularly limited, people in the art
Member can correspondingly be selected according to 800 specific material of heat-conducting layer.In some embodiments of the invention, heat-conducting layer 800 can
Being formed by a composition method with metal carbonyl conducting layer, cathode or anode, in this way, forming heat-conducting layer without additional increase
800 new mask plate, the manufacturing cost without dramatically increasing the production method.
According to an embodiment of the invention, which is also provided with void region 810, in this way, heat-conducting layer 800 exists
Quickly while conduction laser cutting heat, the efficiency of laser cutting is not interfered with also.In some embodiments of the invention, it engraves
Empty region 810 may include that hollow out figure group of at least one row along cutting path DD distributions, a row hollow out figure group may also include
Multiple spaced hollow out figure 811 will not also drop in this way, while can fully ensuring that quickly conduction laser cutting heat
The efficiency of low laser cutting script.In some specific examples, with reference to Fig. 4, void region 810 (not marked in figure) may include one
Row hollow out figure group comprising multiple spaced hollow out figure 811, and hollow out figure 811 can be hexagon, in this way,
The space availability ratio higher of one row hollow out figure group of composition.In other specific examples, with reference to Fig. 5, void region 810
(not marked in figure) may include multiple row hollow out figure group comprising multiple spaced hollow out figure 811, also, multiple row is engraved
Empty graphic group is arranged in honeycomb, and hollow out figure 811 can be hexagon, in this way, an at least row hollow out figure for composition
The space availability ratio highest of group.
S300：Heat-conducting layer is cut by laser along cutting path, to obtain display base plate.
In this step, heat-conducting layer 800 is cut by laser along cutting path DD, to obtain display base plate.
According to an embodiment of the invention, the specific process parameter of laser cutting, such as energy density, spot size and cutting
Speed etc., is not particularly limited, and those skilled in the art can be according to 100 specific material of substrate and thickness and heat-conducting layer
800 specific thickness, 810 specific shape of void region are correspondingly adjusted, and details are not described herein.
In conclusion according to an embodiment of the invention, the present invention proposes a kind of production method, to the cutting on substrate
When region is cut by laser, since heat-conducting layer can quickly conduct and remove the heat near cutting path, and then energy can be reduced
The heat affecting of amount conduction and radiation to the functional film layer in effective coverage, makes the yields higher of acquisition display base plate after cutting.
In another aspect of the present invention, the present invention proposes a kind of display base plate.According to an embodiment of the invention, this is aobvious
Show that substrate is obtained by above-mentioned method.
According to an embodiment of the invention, the concrete type of display base plate is not particularly limited, and specifically for example OLED is shown
Substrate etc., those skilled in the art can correspondingly be selected according to the particular use of the display base plate, and details are not described herein.
In conclusion according to an embodiment of the invention, the present invention proposes a kind of display base plate, functional film layer structure by
The heat affecting smaller of laser cutting, to make the yields higher of the display base plate.It will be appreciated to those of skill in the art that
Above for feature and advantage described in the method for making display base plate, it is still applied to the display base plate, details are not described herein.
In another aspect of the present invention, the present invention proposes a kind of display panel.According to an embodiment of the invention, this is aobvious
Show the display base plate that panel includes above-mentioned.
According to an embodiment of the invention, the concrete type of the display panel is not particularly limited, such as OLED display surfaces
Plate etc., those skilled in the art can correspondingly be selected according to the particular use of the display panel, and details are not described herein.It needs
Illustrate, which further includes other necessary the Nomenclature Composition and Structure of Complexes other than above-mentioned display base plate, aobvious with OLED
For showing panel, specifically such as encapsulated layer, protective layer, those skilled in the art can according to the practical use of the display panel into
Row is correspondingly designed and is supplemented, and details are not described herein.
In conclusion according to an embodiment of the invention, the present invention proposes a kind of display panel, the making of display base plate
Yields higher, to make the stability in use higher of the display panel.It will be appreciated to those of skill in the art that front needle
To feature and advantage described in display base plate, it is still applied to the display panel, details are not described herein.
In another aspect of the present invention, the present invention proposes a kind of display device.According to an embodiment of the invention, this is aobvious
Showing device includes above-mentioned display panel.
According to an embodiment of the invention, the concrete type of the display device is not particularly limited, such as TV, display
Device, computer screen, mobile phone screen, tablet computer, wearable device, game machine and the life with display panel, household electrical appliance
Deng those skilled in the art can correspondingly be selected according to the practical use of the display device, and details are not described herein.
It should be noted that the display device other than above-mentioned display panel, further include other it is necessary composition and
Structure, by taking OLED display as an example, specifically such as control assembly, circuit board, power cord and shell, etc., people in the art
Member can correspondingly be supplemented according to the concrete type and requirement of the display device, and details are not described herein.
In conclusion according to an embodiment of the invention, the present invention proposes a kind of display device, the use of display panel
Stability higher, so as to make the display device, the service life is longer.It will be appreciated to those of skill in the art that front needle
To feature and advantage described in display base plate, display panel, it is still applied to the display device, details are not described herein.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of display base plate mother matrix, which is characterized in that including：
Substrate limits multiple effective coverages on the substrate, and constitutes cutting region between the two neighboring effective coverage；
Heat-conducting layer, the heat-conducting layer are arranged on a surface of the substrate and in the cutting regions.
2. display base plate mother matrix according to claim 1, which is characterized in that the heat-conducting layer is formed by metal.
3. display base plate mother matrix according to claim 1, which is characterized in that the heat-conducting layer is provided with void region, institute
It states the orthographic projection of void region over the substrate and cutting path is least partially overlapped.
4. display base plate mother matrix according to claim 3, which is characterized in that the void region include at least one row along
The hollow out figure group of the cutting path distribution, a row hollow out figure group includes multiple spaced hollow out figure.
5. display base plate mother matrix according to claim 4, which is characterized in that hollow out figure group described in multiple row is in honeycomb
Arrangement.
6. a kind of method making display base plate, which is characterized in that including：
Substrate is provided, multiple effective coverages are limited on the substrate, and form cutting between the two neighboring effective coverage
Region；
Heat-conducting layer is formed on a surface of the substrate, and the heat-conducting layer is within the cutting region；
The heat-conducting layer is cut by laser along cutting path, to obtain the display base plate.
7. according to the method described in claim 6, it is characterized in that, after the formation heat-conducting layer, further comprise：
Void region is formed on the heat-conducting layer, and the orthographic projection of the void region over the substrate and cutting path are extremely
Small part is overlapped.
8. a kind of display base plate, which is characterized in that obtain claim 7 the method.
9. a kind of display panel, which is characterized in that including display base plate according to any one of claims 8.
10. a kind of display device, which is characterized in that including the display panel described in claim 9.
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| CN108817700A (en) * | 2018-09-04 | 2018-11-16 | 京东方科技集团股份有限公司 | protective film and laser cutting method |
| CN109830518A (en) * | 2019-02-28 | 2019-05-31 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
| CN110048014A (en) * | 2019-03-15 | 2019-07-23 | 云谷（固安）科技有限公司 | Display panel and preparation method thereof, display device |
| CN113130617A (en) * | 2021-04-21 | 2021-07-16 | 京东方科技集团股份有限公司 | Display substrate, display mother board and display device |
| CN114131182A (en) * | 2021-12-21 | 2022-03-04 | 苏州沃特维自动化***有限公司 | Heat dissipation film-assisted laser cutting battery piece structure and process thereof |
| CN115691327A (en) * | 2022-09-29 | 2023-02-03 | 惠科股份有限公司 | Support film, flexible mother board, flexible display panel and manufacturing method thereof |
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