CN110165078A - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
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- CN110165078A CN110165078A CN201910458064.9A CN201910458064A CN110165078A CN 110165078 A CN110165078 A CN 110165078A CN 201910458064 A CN201910458064 A CN 201910458064A CN 110165078 A CN110165078 A CN 110165078A
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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
- H10K50/805—Electrodes
- H10K50/81—Anodes
- H10K50/813—Anodes characterised by their shape
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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
- H10K50/841—Self-supporting sealing arrangements
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- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a kind of display panel and display device, display panel includes substrate, which includes viewing area, and positioned at the non-display area of non-display area；Planarization layer is located on substrate, and in the non-display area on corresponding planarization layer around one circle groove of viewing area setting；Anode is covered in the upper surface of planarization layer, through-hole is arranged on anode, which penetrates the upper and lower surface of anode.Display panel provided by the invention and display device guarantee that screen body does not occur blackspot problem in subsequent high temperature high humidity reliability test, improve the reliability of panel, extend the service life of display panel while realization prevents organic layer overflow.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of display panel and display devices.
Background technique
Organic Light Emitting Diode (Organic Light Emitting Diode, OLED) display device is due to having response
Speed is fast, colour gamut is wide, many merits such as flexible, and application in the field of display is also more and more extensive.Currently, over there plate into
When row high temperature and humidity reliability detects, it is easy to appear the problem of shielding body edge blackspot, the reason is that: by the flat of organic material production
For smoothization layer when carrying out high temperature process, the gas that residual solvent gasification or decomposition in material generate is easy bursting periphery film layer,
So that extraneous water oxygen invades panel itself, cause to shield body failure, and then blackspot phenomenon occur at screen body edge.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of display panel and display device, can guarantee to shield body edge
Do not occur blackspot problem in subsequent high temperature high humidity reliability test.
In a first aspect, the embodiment of the present invention provides a kind of display panel, which includes substrate, which includes aobvious
Show area, and the non-display area positioned at non-display area；Planarization layer is located on substrate, and corresponding flat in the non-display area
Around one circle groove of viewing area setting on smoothization layer；Anode is covered in the upper surface of planarization layer, and through-hole is arranged in anode, this is logical
Hole penetrates the upper and lower surface of anode.
Optionally, the anode setting through-hole of groove side or the anode of groove two sides are respectively provided with through-hole, and through-hole is located at groove
The top of the planarization layer of surrounding.
Optionally, through-hole is in one or more interval settings.
Optionally, organic filled layer is covered in through-hole.
Optionally, display panel includes pixel confining layer, which is covered in the upper surface of anode, is covered in through-hole
The organic filled layer and pixel confining layer same layer of lid are arranged.
Optionally, the organic filled layer covered in through-hole is a part of pixel confining layer, and integrated with pixel confining layer
Molding.
Optionally, display panel includes thin-film encapsulation layer, is set in pixel confining layer, which includes at least
One layer of organic layer and one layer of inorganic layer.
Optionally, the shape of groove include trapezoidal, rectangle, it is arc-shaped.
Optionally, display panel includes heteromorphic regions and non-profiled area, and groove and through-hole are respectively positioned on the heteromorphic regions of display panel
In corresponding non-display area.
Second aspect, the embodiment of the invention provides a kind of display device, which includes above-mentioned display panel.
The present invention provides a kind of display panel and display device, display panel includes substrate, which includes viewing area,
And the non-display area positioned at non-display area；Planarization layer is located on substrate, and corresponding planarization layer in the non-display area
It is upper to enclose groove around viewing area setting one；Anode is covered in the upper surface of planarization layer, and through-hole is arranged in anode, which penetrates
The upper and lower surface of anode.Display panel provided by the invention and display device, the circle groove around viewing area setting can be real
The overflow of organic layer in thin-film encapsulation layer is now prevented, at the same time, only one circle groove of setting is matched with setting through-hole on anode,
It can guarantee that shielding body does not occur blackspot problem in subsequent high temperature high humidity reliability test, extension is shown under hot and humid environment
The service life of panel.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 9 is a kind of top view of display device provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.For a clearer understanding of the present invention, under
Face will in conjunction with specific embodiments be described in detail the present invention, it is emphasized that, following specific embodiments only help pair
Understanding of the invention, substantive content of the invention include but is not limited to content documented by following embodiment.
Fig. 1 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention, as shown in Figure 1, the display panel
Including the substrate 100, planarization layer 102 and anode 104 being stacked from bottom to top, substrate 100 includes viewing area 1001 and position
A circle groove is arranged in non-display area 1002 in 1001 periphery of viewing area on the corresponding planarization layer 102 of non-display area 1002
114, and anode 104 is provided with through-hole 1041, this through-hole 1041 penetrates the upper and lower surface of anode 104.It should be noted that Fig. 1
It only schematically illustrates only the case where through-hole is set on the anode of groove side, but groove can be set in groove side
It sets, can also be respectively provided in groove two sides, herein with no restrictions, the following examples will be described in more detail.
Specifically, display panel of the invention, it is aobvious by being surrounded on planarization layer 102 corresponding in non-display area 1002
Show 1001, area setting, one circle groove 114, so that planarization layer 102 is not completely encapsulated in a narrow space by anode,
Guarantee gas 114 two sides of groove have biggish activity space, so as to avoid planarization layer 102 carry out high temperature and humidity can
When by property detection, the air accumulation pressure that residual solvent gasification or decomposition in organic material generate is excessive, causes to shield body edge
The risk of blackspot can guarantee the reliability of encapsulation and promote service life of screen body under the conditions of hot and humid environment.In order into one
Step enhancing screen body resists the ability of high temperature and humidity, and through-hole 1041 is arranged in the present invention also on anode 104, so that anode 104 surrounds
The part of planarization layer 102 is in non-confined space, can preferably buffer the gas pressure in planarization layer 102.
The technical solution of the present embodiment, by surrounding setting one circle in viewing area on corresponding planarization layer in the non-display area
Groove, and through-hole is set on anode, so that through-hole is penetrated the upper and lower surface of anode, buffers planarization layer in high temperature process
The internal pressure of generation avoids gas pressure of the screen body in high temperature and humidity reliability test in planarization layer excessive bursting week
Side film layer, caused screen body edge blackspot problem, ensure that the display quality of display panel.
Based on the above technical solution, as shown in Figs 1-4, the through-hole 1041 of anode 104 can be set in groove 114
Side, through-hole 1041 can also be respectively provided in the anode 104 of 114 two sides of groove, through-hole 1041 is located at flat around groove 114
102 top of smoothization layer.Preferred embodiment is to be respectively provided with through-hole 1041 on the anode 104 of 114 two sides of groove.
Specifically, the through-hole of 114 two sides of groove can be set to one, may be set to be multiple；Multiple through-holes 1041
It is set in distance, the gap at interval can be equidistant, or unequal spacing；The size of through-hole 1041 can it is identical can also
With not identical, the shape of through-hole 1041 is not specifically limited；Certainly, the through-hole 1041 of 114 two sides of groove can be in and symmetrically set
It sets, can also be disposed asymmetrically, it can be selected according to actual needs with process conditions.
Specifically, Fig. 1 is only the case where through-hole 1041 are arranged on the anode 104 of 114 side of groove, and Fig. 2 is in groove
Through-hole 1041 is respectively provided on the anode 104 of 114 two sides, and the case where a through-hole is respectively arranged in two sides, Fig. 3 is at 114 liang of groove
Through-hole 1041 is respectively provided on the anode 104 of side, but one end is a through-hole 1041, the other end is the setting of multiple through-holes 1041 interval
The case where, Fig. 4 is multiple through-holes 1041 to be respectively provided on the anode 104 of 114 two sides of groove, and the quantity of two side through hole 114 is not
Together, i.e. the through-hole 114 of two sides situation disposed asymmetrically, specific set-up mode can be according to planarization layers in practical application
The pressure condition of material and groove two sides is selected.
Above-described embodiment can be single recessed by the way that an appropriate number of through-hole is arranged on the anode of groove one or both sides
The pressure that the generation of planarization layer internal gas is further buffered on the basis of slot, avoids gas from breaking through periphery film layer, effectively solves
The problem of screen body edge blackspot.
In another embodiment, as shown in figure 5, being covered with organic filled layer 1042 in the through-hole 1041 of aforesaid anode 104.
Specifically, the organic filled layer 1042 of covering in through-hole, can play a supporting role, keep subsequent film more firm, it is prior
It is that, since the material of anode 104 is generally inorganic conductive material, flexibility is poor, and stress is easily broken off, and under comparing,
Organic material good toughness, when air accumulation pressure is larger in planarization layer 102, organic filled layer 1042 can play certain
Buffer function is easily broken off not as inorganic material film layer.
Therefore, the through-hole cooperation circle groove above-mentioned on anode can be very along with the buffer function of organic filled layer
Be effectively prevented from screen body in high temperature and humidity reliability test, due to the gas pressure in planarization layer it is excessive caused by shield body
Edge blackspot problem.
Fig. 6 is another display panel that the present invention provides on the basis of previous embodiment, this display panel further includes
Pixel confining layer 106 is covered in the upper surface of anode 104, for separating the pixel region (not showing in Fig. 6) of viewing area 1001,
Its material is organic material.Aforementioned organic filled layer (here labeled as 2042) can be arranged with this 106 same layer of pixel confining layer,
And it is covered in through-hole 1041.
Preferably, as shown in fig. 7, organic filled layer be pixel confining layer 106 a part, and with pixel confining layer 106
It is integrally formed.When making pixel confining layer 106 on a display panel, so that also covering production pixel confining layer in through-hole 1041
106 material.In this way, picture can be met simultaneously by a step production process without being additionally provided with machine filled layer covering through-hole
The dual function of plain confining layers and organic filled layer.
It should be noted that it is real to pass through metal mask version with the deformation of upper groove, through-hole and pixel confining layer 106
It is existing, when making corresponding film layer, as needed using different openings, the mask plate of different light transmittances, can make to obtain above-mentioned
The structure of display panel, specific implementation is same as the prior art, and details are not described herein.
Further, display panel of the invention further includes thin-film encapsulation layer, is set to the top of anode, film envelope
It fills layer and includes at least one layer of organic layer and one layer of inorganic layer, for realizing the sealing of organic luminous layer, to obstruct water oxygen.Due to
The luminescent layer of OLED display panel is generally luminous organic material, it is easy to caused to fail by the water oxygen erosion in air, so
Encapsulated layer is particularly significant for organic light emitting display panel.In general, organic polymer has good film forming, uniformity
And surface smoothness, but it is not good enough to the barriering effect of steam and oxygen, and inorganic film has barrier very well to steam and oxygen
Effect, but its film forming and flatness be not good enough, so stacking by the way of allowing the two alternately to form a film and forming a complementary water
Vapour and oxygen isolated location, and the overall thickness of thin-film encapsulation layer is very thin, can satisfy the requirement of device ultra-thin and ultra-light completely, it is right
In realization flexible bendable or narrow frame display screen, this thin-film package very advantageous.And it is proved by measurement, the thin-film package
Layer is about 10 to the permeability of steam-6g/m2/ day, the permeability to oxygen are about 10-5cm3/m2/ day, meets OLED device
Requirement to steam and oxygen permeability.
More specifically, as shown in figure 8, display panel of the invention includes substrate 100, planarization layer 102, anode 104, as
Plain confining layers 106, and the thin-film encapsulation layer being set in pixel confining layer 106, the stepped construction of the thin-film encapsulation layer is by leaning on
Nearly pixel confining layer side, which is risen, is followed successively by the first inorganic layer 108, organic layer 110 and the second inorganic layer 112.Due to organic layer 110
It is generally made by the way of inkjet printing, drop is easy on the surface of the first inorganic layer 108 to both sides extension overflow.For
The overflow avoided droplets from, display panel of the invention are recessed in region setting one circle of the non-display area 1002 close to viewing area 1001
Slot 114, the depth of groove 114 go deep into the bottom end of planarization layer 102, it is possible to when forming planarization layer 102, i.e., non-aobvious
Show one circle groove 114 of setting on the planarization layer in area 1002, subsequent anode 104 and close luminescent layer in this groove 114
First inorganic layer 108 of side is covered each along 114 surface of groove, and it is recessed that such first inorganic layer, 108 surface also will form a circle
Slot 114, this method effectively prevent 110 overflow of organic layer.Certainly, groove 114 can not also be in production planarization layer 102
When it is reserved, but performed etching again when making the first inorganic layer 108, etching depth is deep into 102 bottom end of planarization layer.It is worth
One is mentioned that, 102 bottom end of planarization layer is goed deep into 114 bottom end of groove can separate planarization layer 102, can be effectively prevented so outer
This paths enters inside the viewing area 1001 of display panel along planarization layer 102 for boundary's steam and oxygen, shines to inside
Material plays a very good protection.
The technical program encloses groove, and the anode in groove two sides by setting one on planarization layer in the non-display area
Upper setting through-hole, and thin-film encapsulation layer is covered above anode, it avoids when carrying out the detection of high temperature and humidity reliability, planarization layer
The gas that residual solvent evaporates in 102 by thereon anode and thin-film encapsulation layer bursting, guarantee under the condition of high temperature and high humidity
The good packaging effect of display panel and display quality.
In another embodiment, display panel includes substrate, is surrounded on corresponding planarization layer in the non-display area of substrate
One circle groove of viewing area setting；Anode is covered in the upper surface of planarization layer, is provided with through-hole on anode.
Specifically, as shown in figure 9, the display panel can also be divided into heteromorphic regions 116 and non-profiled area 118, heteromorphic regions 116
For the non-regular shape region, such as arcuate segments, chamfered region etc. of display screen, non-profiled area 118 is the area of display screen regular shape
Domain.In the non-display area 1002 of the heteromorphic regions 116 of display panel, the groove on planarization layer is arranged in a circle, while recessed
Through-hole is set on the anode of slot two sides.In practical applications, since heteromorphic regions 116 are compared to regular domain, non-display area
1002 space is smaller, and when display panel carries out high temperature, the detection of high humidity reliability, residual solvent gasifies or divides in planarization layer
The gas that solution generates is easier to be limited in the space of very little, causes corresponding region pressure larger, constantly assembles nothing in gas
When method discharges, it is easy to break through film layer thereon, cause screen body edge the blackspot problem that can not be made up occur, so in heteromorphic regions
116 use above-mentioned setting, can largely reduce and a possibility that shielding body edge blackspot problem occur.Certainly, panel
Non-profiled area equally can enclose groove around the setting of viewing area 1,001 one on corresponding planarization layer in non-display area 1002, and
Through-hole 1041 is set on anode, but if the area of the non-display area 1002 in non-profiled area is bigger, can not also be used
Above structure, but multi-turn groove 114 is set, also can choose setting on the anode 104 of 114 two sides of groove or is not provided with through-hole
114.In a word in practical applications, the structure setting in non-profiled area can specifically need to select according to screen body, and the present invention is without limitation.
In the technical solution of the present embodiment, on the planarization layer 102 in the non-display area of the irregular shaped region of display panel
One circle groove 114 of setting, while through-hole 1041 is set on the anode of groove two sides 104, it avoids and carries out height in display panel
When temperature, the detection of high humidity reliability, in the relatively narrow non-display area of heteromorphic regions, residual solvent gasification or decomposition in planarization layer 102
The gas of generation is limited in the space of very little, the blackspot problem for causing display panel abnormity area edge to occur not making up,
Improve the display reliability of the heteromorphic regions of display panel.
It should be noted that the present invention to the shape of groove 114 without limitation, rectangle, arc, trapezoidal etc..
In addition, the display device includes the display in any of the above-described embodiment the present invention also provides a kind of display device
Panel, the display panel include substrate, planarization layer and anode, organic light-emitting units are arranged on anode, organic light-emitting units are logical
Thin-film encapsulation layer is crossed to be packaged.
To sum up, the present invention provides a kind of display panel and display device, which includes substrate, which includes
Viewing area, and the non-display area positioned at non-display area；Planarization layer is located on substrate, and corresponding in the non-display area
Around one circle groove of viewing area setting on planarization layer；Anode is covered in the upper surface of planarization layer, through-hole is arranged on anode.
Display panel provided by the invention and display device not only can be to prevent through one circle groove of setting in conjunction with the through-hole on anode
Only organic layer overflow, while in subsequent high temperature high humidity reliability test, the gas volatilized by solvent remaining in planarization layer
Body will not be not only enclosed in narrow space, and the through-hole on anode also has further release to gas pressure and makees
With so that anode and its film layer above guarantee that screen body edge does not generate blackspot phenomenon, the display for promoting panel can not by bursting
By property.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of display panel characterized by comprising
Substrate, including viewing area, and the non-display area positioned at the non-display area；
Planarization layer is located on the substrate, and in the non-display area on the corresponding planarization layer around described aobvious
Show one circle groove of area's setting；
Anode is covered in the upper surface of the planarization layer, and through-hole is arranged in the anode, and the through-hole penetrates the upper following table of anode
Face.
2. display panel as described in claim 1, which is characterized in that the anode setting of the groove side is described logical
The anode of hole or the groove two sides is respectively provided with the through-hole, and the through-hole is located at the described flat of the groove vicinity
Change the top of layer.
3. display panel as claimed in claim 2, which is characterized in that the through-hole is in one or more interval settings.
4. display panel as described in claim 1, which is characterized in that be covered with organic filled layer in the through-hole.
5. display panel as claimed in claim 4, which is characterized in that the display panel includes pixel confining layer, the picture
Plain confining layers are covered in the upper surface of the anode, and organic filled layer and the pixel confining layer same layer are arranged.
6. display panel as claimed in claim 5, which is characterized in that organic filled layer is one of the pixel confining layer
Point, and be integrally formed with the pixel confining layer.
7. display panel as claimed in claim 5, which is characterized in that the display panel includes thin-film encapsulation layer, is set to
In the pixel confining layer, the thin-film encapsulation layer includes at least one layer of organic layer and one layer of inorganic layer.
8. display panel as described in claim 1, which is characterized in that the shape of the groove includes at least trapezoidal, rectangle, circle
One of arc.
9. display panel as described in claim 1, which is characterized in that the display panel includes heteromorphic regions and non-profiled area,
The groove and the through-hole are respectively positioned in the corresponding non-display area of the heteromorphic regions of the display panel.
10. a kind of display device, which is characterized in that including such as described in any item display panels of claim 1-9.
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| CN201910458064.9A CN110165078B (en) | 2019-05-29 | 2019-05-29 | Display panel and display device |
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|---|---|---|---|
| CN201910458064.9A CN110165078B (en) | 2019-05-29 | 2019-05-29 | Display panel and display device |
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| CN110165078B CN110165078B (en) | 2023-01-20 |
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| CN113299857A (en) * | 2021-05-21 | 2021-08-24 | 京东方科技集团股份有限公司 | Display substrate and display panel |
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| Publication number | Publication date |
|---|---|
| CN110165078B (en) | 2023-01-20 |
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