CN108258145A - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
- Publication number
- CN108258145A CN108258145A CN201810039512.7A CN201810039512A CN108258145A CN 108258145 A CN108258145 A CN 108258145A CN 201810039512 A CN201810039512 A CN 201810039512A CN 108258145 A CN108258145 A CN 108258145A
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- Prior art keywords
- groove
- cofferdam
- display
- substrate
- base plate
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
-
- 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
- H10K59/124—Insulating layers formed between TFT elements and OLED elements
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present invention discloses a kind of display panel and display device, and the display panel includes display base plate and the thin-film encapsulation layer being encapsulated on the display base plate；The display base plate is divided into viewing area and non-display area, and cofferdam area is provided in the non-display area, has the first groove on the display base plate in the cofferdam area, the edge seal of the thin-film encapsulation layer is in first groove.The display panel of the embodiment of the present invention, including display base plate and the thin-film encapsulation layer being encapsulated on display base plate, the first groove is set in the cofferdam area of the non-display area of display base plate, by the edge seal of thin-film encapsulation layer in first groove, surface of the edge of thin-film encapsulation layer directly with the display base plate is avoided to be in contact, and then prevents display panel thin-film encapsulation layer in cutting or bending process from being detached with display base plate.While encapsulation success rate is improved, it is also beneficial to improve product yield.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of display panel and display device.
Background technology
Preparing quantum dot light emitting (Quantum Dot Light Emitting Diodes, QLED) device or Organic Electricity
In the technical process of photoluminescence (Organic Light Emitting Diode, OLED) device, shown during cutting process
Equipment it is upper easily cracked, some crackles can further to the side diffusion close to viewing area, cause the edge of encapsulated layer with
The separation of display base plate causes the failure of encapsulation, and it is bad in turn result in display.
In the prior art to prevent the crackle that cutting generates from being spread to viewing area, encapsulation is caused to fail, usually in display surface
The neighboring area of plate prepares groove 1', as shown in Figure 1, however, these grooves can not entirely prevent crackle to viewing area spread,
And then encapsulation is caused to fail.When display panel is by cutting stress or bending, due to the edge seal of thin-film encapsulation layer
On the surface of display base plate, cutting or bending process can cause the separation at the edge and display base plate of encapsulated layer, and encapsulation is caused to be lost
It loses, it is bad in turn result in display.
Invention content
The present invention provides a kind of display panel and display device, to solve the edge of encapsulated layer and display in the prior art
Substrate detaches, and causes the problem of encapsulating failure.
In a first aspect, the present invention provides a kind of display panel, including display base plate and it is encapsulated on the display base plate
Thin-film encapsulation layer；
The display base plate is divided into viewing area and non-display area, and cofferdam area is provided in the non-display area, described to enclose
There is the first groove, the edge seal of the thin-film encapsulation layer is in first groove on the display base plate in weir area.
Optionally, the display base plate includes enclosing positioned at at least one of the surface in substrate and the cofferdam area
Weir, first groove are located on substrate of the cofferdam far from the viewing area side, and the depth of first groove is less than
The thickness of the substrate.
Optionally, the display base plate includes enclosing positioned at at least one of the surface in substrate and the cofferdam area
Weir, first groove are located remotely from the top in the cofferdam of the viewing area, and the depth of first groove is less than the cofferdam
Thickness.
Optionally, package parts are additionally provided in first groove, the package parts cover the thin-film encapsulation layer
Edge.
Optionally, the package parts are inorganic encapsulated component.
Optionally, the cofferdam is two, and one of following location is at least provided with the second groove：
On substrate between the cofferdam, the cofferdam is on the substrate of the viewing area side and close to described aobvious
At the top of the cofferdam for showing area；
Wherein, the thin-film encapsulation layer covers second groove.
Optionally, in the orthographic projection region of the cofferdam on the substrate, it is provided with third groove on the substrate,
The third inside grooves are filled with organic material.
Optionally, there is pixel defining layer on the substrate of the viewing area；
In the orthographic projection region of the pixel defining layer on the substrate, it is provided with the 4th groove on the substrate,
The material of the pixel defining layer is filled in 4th groove.
Optionally, the thin-film encapsulation layer includes at least two layers of inorganic thin film encapsulated layer.
Second aspect is the present invention also provides a kind of display device, including above-mentioned display panel.
Compared with prior art, the embodiment of the present invention has the following advantages：
The display panel of the embodiment of the present invention, including display base plate and the thin-film encapsulation layer that is encapsulated on display base plate,
First groove is set in the cofferdam area of the non-display area of display base plate, by the edge seal of thin-film encapsulation layer in first groove
It is interior, surface of the edge of thin-film encapsulation layer directly with the display base plate is avoided to be in contact, and then prevent display panel from cutting
Or thin-film encapsulation layer is detached with display base plate in bending process.While encapsulation success rate is improved, it is also beneficial to improve
Product yield.
Description of the drawings
Fig. 1 show the structure diagram of the display panel of the prior art；
Fig. 2 show a kind of structure diagram of display panel of the embodiment of the present invention；
Fig. 3 show the structure diagram of another display panel of the embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, those of ordinary skill in the art's acquired every other implementation without making creative work
Example, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a kind of display panels, including display base plate and are encapsulated in thin on the display base plate
Film encapsulated layer, display base plate are divided into viewing area and non-display area, it is to be understood that usual non-display area around viewing area into
Row setting, is provided with cofferdam area in non-display area, has the first groove on the display base plate in cofferdam area, thin-film encapsulation layer
Edge seal is in the first groove.
It is understood that in cofferdam area, display base plate can include substrate and one or more on the substrate
A cofferdam, the first groove can be located on substrate, can also be located on cofferdam, certainly, if being additionally provided on the substrate in cofferdam area
Other structures, first groove can also be located in other structures, and for the specific location of the first groove, the present invention does not limit
System.
The display panel of the embodiment of the present invention, including display base plate and the thin-film package being encapsulated on the display base plate
Layer, the first groove is set in the cofferdam area of the non-display area of display base plate, by the edge seal of thin-film encapsulation layer this first
In groove, surface of the edge of thin-film encapsulation layer directly with the display base plate is avoided to be in contact, and then prevent display panel from existing
Thin-film encapsulation layer is detached with display base plate in cutting or bending process.While encapsulation success rate is improved, it is also beneficial to
Improve product yield.
In one particular embodiment of the present invention, as shown in Fig. 2, the display panel includes display base plate and is encapsulated in institute
State the thin-film encapsulation layer 4 on display base plate.Display base plate is divided into viewing area 1 and non-display area 2, is set in non-display area 2
There is cofferdam area 21.
Display base plate includes being located at least one cofferdam 211 of surface, the first groove in substrate 51 and cofferdam area 21
31 are located on substrate of the cofferdam 211 far from viewing area side.It is understood that the depth of the first groove 31 is less than the thickness of substrate
Degree, specifically, substrate 51 can include underlay substrate 511, barrier layer 512, gate insulating layer 513, interlayer insulating film 514, the
One passivation layer, 515 grade multilayered structures, for the concrete structure of substrate 51, the present invention is not limited, and above-mentioned first groove 31 can be with
It extends in any structure layer by layer of substrate 51.It, can be in this way, by the edge seal of thin-film encapsulation layer 4 in the inside of substrate 51
Effectivelying prevent the diffusion of cutting stress causes the edge of thin-film encapsulation layer 4 to be removed with substrate 51 or can effectively prevent film
It is shelled between the multilayer encapsulation film interface (such as the first inorganic encapsulated layer 41 and second inorganic encapsulated layer 42) of encapsulated layer 4
From.
Further, package parts 311 are additionally provided in the first groove 31, the package parts 311 covering thin-film package
The edge of layer 4, is sealed with the edge to thin-film encapsulation layer 4, water oxygen can be effectively prevent to enter inside display panel, caused
Encapsulation failure, especially when being bent, stress interface easily makes the edge of thin-film encapsulation layer 4 be detached with display base plate, and
Interface between multilayer encapsulation film easily detaches, and the edge of thin-film encapsulation layer 4 is carried out using above-mentioned package parts 5 close
Envelope, it is possible to prevente effectively from extraneous water oxygen invasion, and influence the service life of display panel.The package parts can be organic packages portion
Part, inorganic encapsulated component or inorganic and organic hybrid package component, but usually inorganic encapsulated component can more be effectively prevented water
Oxygen is invaded.
Further, setting is there are two cofferdam 211 on the substrate 51 in cofferdam area 21, at least in the setting of one of following location
There is the second groove 32：On substrate 51 between cofferdam 211, cofferdam 211 is on the substrate 51 of 1 side of viewing area and cofferdam
211 tops, and thin-film encapsulation layer 4 covers the second groove 32, and is encapsulated in the first groove 31.The setting of second groove 32, can
To increase the length of thin-film encapsulation layer, increase thin-film encapsulation layer 4 and the contact area of display base plate, it effectively prevent cutting crackle pair
Packaging film impacts, and can further increase water oxygen traveling path, prevents water oxygen from being impacted to display device.And
And the second groove 32 of between cofferdam 211 or both sides can disperse to cut stress, prevent cutting crackle from being spread to viewing area 1；Position
The second groove 32 in 211 top of cofferdam can enhance the flexibility of display base plate, when display panel is bent, be not easy
Thin-film encapsulation layer is made to be detached with display base plate.
It is understood that the depth of the second groove 32 on substrate 51 is less than the thickness of the substrate 51 of its corresponding position
Degree；It is less than the thickness in cofferdam 211 positioned at the depth of second groove 32 at 211 top of cofferdam.
Further, in the orthographic projection region of cofferdam 211 on the substrate 51, it is provided with third groove 33 on the substrate 51,
Filled with organic material in third groove 33, the organic material of filling specifically can be with the material identical in cofferdam 211, You Jicai
Material has the function of absorption stress, and cutting crackle can be further prevented to be spread to viewing area.It is understood that third groove
33 depth should be less than the thickness of the substrate 51 of 33 corresponding position of third groove.
Further, also there is pixel defining layer 11 on the substrate 51 of viewing area 1.Pixel defining layer 11 is on the substrate 51
Orthographic projection region in, be provided with the 4th groove 34 on the substrate 51, the material of pixel defining layer 11 be filled in the 4th groove 34
Material.Increase by the 4th groove 34 in viewing area, can further dispersive stress, enhance the flexibility of display panel, meanwhile, pixel
The material for defining layer 11 is usually organic material, it may have absorbs the effect of stress, further prevents cutting stress to viewing area
It impacts.It is understood that the depth of above-mentioned 4th groove 34 is less than the thickness of the substrate 51 of 34 corresponding position of the 4th groove
Degree.
In another specific embodiment of the present invention, as shown in figure 3, the display panel includes display base plate and is encapsulated in
Thin-film encapsulation layer 4 on the display base plate.Display base plate is divided into viewing area 1 and non-display area 2, is set in non-display area 2
It is equipped with cofferdam area 21.
Display base plate is included positioned at least one cofferdam 211 of 51 top of substrate in substrate 51 and cofferdam area 21, and first is recessed
Slot 31 is located remotely from the top in the cofferdam 211 of viewing area 1, and the depth of the first groove 31 is less than the thickness in cofferdam 211.By film
Inside grooves of the edge seal of encapsulated layer 4 at the top of cofferdam 21, can effectively prevent the diffusion of cutting stress causes film to seal
It is removed with substrate 51 at the edge of dress layer 4.
Further, package parts 311 are additionally provided in the first groove 31, the package parts 311 covering thin-film package
The edge of layer 4, is sealed with the edge to thin-film encapsulation layer 4, water oxygen can be effectively prevent to enter inside display panel, caused
Encapsulation failure, especially when being bent, stress interface easily makes the edge of thin-film encapsulation layer 4 be detached with display base plate, and
Multilayer encapsulation film interface is easily separated, and the edge of thin-film encapsulation layer 4 is sealed using above-mentioned package parts 5, can be effective
Extraneous water oxygen is avoided to invade, and influences the service life of display panel.The package parts can be organic packages component, inorganic encapsulated
Component or inorganic and organic hybrid package component, but usually inorganic encapsulated component can more be effectively prevented water oxygen invasion.
Further, setting is there are two cofferdam 211 on the substrate 51 in cofferdam area 21, at least in the setting of one of following location
There is the second groove 32：On substrate 51 between cofferdam 211, cofferdam 211 close to 1 side of viewing area substrate 51 and close to display
211 top of cofferdam in area 1, and thin-film encapsulation layer 4 covers the second groove 32, and is encapsulated in the first groove 31.Second groove 32
Setting, the length of thin-film encapsulation layer 4, increase thin-film encapsulation layer 4 and the contact area of display base plate can be increased, effectively prevent
Cutting crackle impacts packaging film, and can further increase water oxygen traveling path, prevents water oxygen from being made to display device
Into influence.Also, between cofferdam 211 or the second groove 32 of both sides can disperse cut stress, prevent cutting crackle to
It spreads viewing area 1；The second groove 32 positioned at 211 top of cofferdam can enhance the flexibility of display base plate, in display panel
When bending, it is not easy that thin-film encapsulation layer is made to detach with display base plate.
It is understood that the depth of the second groove 32 on substrate 51 is less than the thickness of the substrate 51 of its corresponding position
Degree；It is less than the thickness in cofferdam 211 positioned at the depth of second groove 32 at 211 top of cofferdam.
Further, in the orthographic projection region of cofferdam 211 on the substrate 51, it is provided with third groove 33 on the substrate 51,
Filled with organic material in third groove 33, the organic material of filling specifically can be with the material identical in cofferdam 211, You Jicai
Material has the function of absorption stress, and cutting crackle can be further prevented to be spread to viewing area 1.It is understood that third is recessed
The depth of slot 33 should be less than the thickness of the substrate 51 of 33 corresponding position of third groove.
Further, also there is pixel defining layer 11 on the substrate 51 of viewing area 1, pixel defining layer 11 is on the substrate 51
Orthographic projection region in, be provided with the 4th groove 34 on the substrate 51, the material of pixel defining layer 11 be filled in the 4th groove 34
Material.Increase by the 4th groove 34 in viewing area, can further dispersive stress, enhance the flexibility of display panel, meanwhile, pixel
The material for defining layer 11 is usually organic material, it may have absorbs the effect of stress, further prevents cutting stress to viewing area
It impacts.It is understood that the depth of above-mentioned 4th groove 34 is less than the thickness of the substrate 51 of 34 corresponding position of the 4th groove
Degree.
The thin-film encapsulation layer 4 of above-described embodiment include at least two layers of inorganic thin film encapsulated layer, as shown in Figure 2 and Figure 3 first
41 and second inorganic encapsulated layer 42 of inorganic encapsulated layer, can also set one layer of organic encapsulation layer between two layers of inorganic encapsulated layer
43, the interface joining place of the first inorganic encapsulated layer 41 and the second inorganic encapsulated layer 42 is located in the first groove 31, and use encapsulation part
Part 311 is packaged.Above-mentioned thin-film encapsulation layer 4 can be not limited to above-mentioned three-decker, can be that multilayer is organic and/or inorganic thin
The thin-film encapsulation layer of film composition.
The display panel of above-described embodiment can be the display base plane of OLED, or the display panel of QLED, it is right
This present invention is not limited, and equally can also be flexible display panels or non-flexible display panel, to this present invention
It is not limited.
The embodiment of the present invention additionally provides a kind of display device, and the display panel including above-described embodiment, display device can
Think that mobile phone, tablet computer, television set, display, laptop, Digital Frame, navigator, Electronic Paper etc. are any with aobvious
Show the product or component of function.
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.For system embodiment
For, since it is basicly similar to embodiment of the method, so description is fairly simple, referring to the portion of embodiment of the method in place of correlation
It defends oneself bright.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make these embodiments other change and modification.So appended claims be intended to be construed to include it is excellent
It selects embodiment and falls into all change and modification of range of embodiment of the invention.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of display panel, which is characterized in that including display base plate and the thin-film encapsulation layer being encapsulated on the display base plate；
The display base plate is divided into viewing area and non-display area, and cofferdam area, the cofferdam area are provided in the non-display area
Display base plate on have the first groove, the edge seal of the thin-film encapsulation layer is in first groove.
2. display panel according to claim 1, which is characterized in that the display base plate includes substrate and the cofferdam area
It is interior positioned at least one cofferdam of the surface, first groove is located at the cofferdam far from the viewing area side
On substrate, the depth of first groove is less than the thickness of the substrate.
3. display panel according to claim 1, which is characterized in that the display base plate includes substrate and the cofferdam area
It is interior that positioned at least one cofferdam of the surface, first groove is located remotely from the top in the cofferdam of the viewing area,
The depth of first groove is less than the thickness in the cofferdam.
4. the display panel according to Claims 2 or 3, which is characterized in that be additionally provided with encapsulation part in first groove
Part, the package parts cover the edge of the thin-film encapsulation layer.
5. display panel according to claim 4, which is characterized in that the package parts are inorganic encapsulated component.
6. display panel according to claim 4, which is characterized in that the cofferdam be two, at least following location it
One is provided with the second groove：
On substrate between the cofferdam, the cofferdam is on the substrate of the viewing area side and close to the viewing area
Cofferdam at the top of；
Wherein, the thin-film encapsulation layer covers second groove.
7. display panel according to claim 6, which is characterized in that the orthographic projection region of the cofferdam on the substrate
It is interior, it is provided with third groove on the substrate, the third inside grooves are filled with organic material.
8. display panel according to claim 7, which is characterized in that defined on the substrate of the viewing area with pixel
Layer；
In the orthographic projection region of the pixel defining layer on the substrate, it is provided with the 4th groove on the substrate, it is described
The material of the pixel defining layer is filled in 4th groove.
9. display panel according to claim 1, which is characterized in that the thin-film encapsulation layer includes at least two layers inorganic thin
Film encapsulated layer.
10. a kind of display device, which is characterized in that including claim 1-9 any one of them display panels.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810039512.7A CN108258145B (en) | 2018-01-16 | 2018-01-16 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810039512.7A CN108258145B (en) | 2018-01-16 | 2018-01-16 | Display panel and display device |
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| CN108258145A true CN108258145A (en) | 2018-07-06 |
| CN108258145B CN108258145B (en) | 2020-04-10 |
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| CN201810039512.7A Active CN108258145B (en) | 2018-01-16 | 2018-01-16 | Display panel and display device |
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| CN109585680A (en) * | 2018-12-03 | 2019-04-05 | 武汉华星光电半导体显示技术有限公司 | Flexible OLED panel |
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| CN110391350A (en) * | 2019-07-29 | 2019-10-29 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN110416266A (en) * | 2019-07-29 | 2019-11-05 | 京东方科技集团股份有限公司 | Display base plate and display panel comprising it |
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| CN110635064A (en) * | 2019-09-24 | 2019-12-31 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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| WO2022111074A1 (en) * | 2020-11-30 | 2022-06-02 | 京东方科技集团股份有限公司 | Display panel, display device, and manufacturing method |
| GB2611201A (en) * | 2020-11-30 | 2023-03-29 | Boe Technology Group Co Ltd | Display panel, display device, and manufacturing method |
| CN113517328A (en) * | 2021-07-12 | 2021-10-19 | 京东方科技集团股份有限公司 | Display panel and display device |
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