CN207637803U - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
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- CN207637803U CN207637803U CN201721847643.5U CN201721847643U CN207637803U CN 207637803 U CN207637803 U CN 207637803U CN 201721847643 U CN201721847643 U CN 201721847643U CN 207637803 U CN207637803 U CN 207637803U
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Abstract
The utility model embodiment discloses a kind of display panel and display device.Wherein display panel includes：Viewing area and non-display area around viewing area；Non-display area includes around the slit area of viewing area, the part that display panel is located at slit area is provided at least one groove, a slit or a plurality of slit arranged from non-display area to viewing area are formed, slit is extended with curve shape along slit area, and blocking dam is formed between two neighboring slit.The display panel that the utility model embodiment provides can effectively obstruct non-display area crackle and be extended to viewing area, prevent crackle from forming water oxygen invasion channel, to improve the reliability at display panel edge, improve edge and lack color problem.
Description
Technical field
The utility model embodiment is related to display technology field more particularly to a kind of display panel and display device.
Background technology
In the production process of display panel, encapsulation is an essential process, the purpose of encapsulation be avoid steam and
Lead to the aging and failure of device inside oxygen intrusion component.Thin-film package (Thin Film Encapsulation, TFE)
Technology is to realize that the oxygen that blocks water, the deposition of inorganic layer are main using one or more layers inorganic material or inorganic/organic material superposition
Using plasma enhances chemical vapor deposition (Plasma Enhanced Chemical Vapor Deposition, PECVD)
With atomic layer deposition (Atomic Layer Deposition, ALD), so as to reach the efficient oxygen requirement that blocks water.And have
The depositional mode of machine layer mainly has：Vitex high polymer monomers sedimentation and PECVD modes realize hydridization organic layer and ink-jet
Print modes such as (IJP).Since thin-film package can effectively reduce the thickness and weight of display device, in portable consumer
Electronic product is widely applied.
Using the display panel of TFE, need to carry out cutting technique after encapsulation, due to non-display area in cutting process
The inorganic encapsulated layer internal stress and edge at edge are influenced by applied external force, and display panel edge easy tos produce crackle,
When crack propagation to viewing area, will produce water oxygen invasion channel leads to viewing area defect, causes edge of display area to lack color etc. and asks
Topic.
Utility model content
The purpose of this utility model is to provide a kind of display panel and display device, effectively can obstruct and decompose non-display area
Crack propagation path prevents crackle from forming water oxygen invasion channel, and to improve the reliability at display panel edge, less edge lacks
The generation of color problem.
To reach this purpose, the utility model provides a kind of display panel, including：Viewing area and around the viewing area
Non-display area；
The non-display area includes around the slit area of the viewing area, and the display panel is located at the portion of the slit area
Set up separately and be equipped at least one groove, forms a slit or a plurality of slit arranged from the non-display area to the viewing area,
The slit is extended with curve shape along the slit area, and blocking dam is formed between the two neighboring slit.
Optionally, the curve shape is waveform or zigzag.
Optionally, the display panel includes array substrate, and the array substrate includes at least one layer of first inorganic layer, institute
It states slit and is located at the part of the slit by first inorganic layer and be removed and formed.
Optionally, further include the thin-film encapsulation layer for covering the array substrate, the thin-film encapsulation layer includes at least one layer
Second inorganic layer, second inorganic layer at most extend to the blocking dam farthest apart from the viewing area.
Optionally, the thickness of at least one layer of second inorganic layer is 0.2 μm~40 μm.
Optionally, the depth of the slit is 0.5 μm~10 μm.
Optionally, the spacing on the two neighboring blocking dam is 0.5 μm~10 μm.
Optionally, the upright projection of the slit on the first plane is triangle, at least one of trapezoidal and rectangle,
Extending direction of first plane perpendicular to the slit.
Optionally, the viewing area includes organic electroluminescence structure.
The utility model also provides a kind of display device, including display panel as described above.
The beneficial effects of the utility model：At least one of viewing area is surrounded by the non-display area setting in display panel
Groove, forms a slit or a plurality of slit arranged from non-display area to viewing area, and slit with curve shape along slit area
Extend so that the extensions path of non-display area crackle is resolved into along direction of a curve and perpendicular to direction of a curve, and then is extended and split
The path that line is extended to viewing area；Meanwhile blocking dam is formed between two neighboring slit, it can effectively obstruct non-display area crackle
Further extended to viewing area.The technical solution of the utility model can prevent crackle from forming water oxygen invasion channel as a result, to carry
The reliability at high display panel edge improves edge and lacks color problem.
Description of the drawings
Fig. 1 is a kind of structure top view for the display panel that the utility model embodiment provides；
Fig. 2 is the cross-sectional view in the utility model embodiment directions A1-A2 along Fig. 1；
Fig. 3 is the vertical view of another structure for the display panel that the utility model embodiment provides；
Fig. 4 is another cross-sectional view along Fig. 1 along A1-A2 that the utility model embodiment provides；
Fig. 5 is another cross-sectional view along Fig. 1 along A1-A2 that the utility model embodiment provides；
Fig. 6 is a kind of schematic diagram for organic electroluminescence structure that the utility model embodiment provides；
Fig. 7 is a kind of flexible OLED display panel structural schematic diagram that the utility model embodiment provides；
Fig. 8 is the flexible OLED display panel structural schematic diagram of another kind that the utility model embodiment provides；
Fig. 9 is the flexible OLED display panel structural schematic diagram of another kind that the utility model embodiment provides；
Figure 10 is the flexible OLED display panel structural schematic diagram of another kind that the utility model embodiment provides.
Specific implementation mode
The embodiments of the present invention are described below in detail, the example of embodiment is shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the utility model, and should not be understood as the limit to the utility model
System.Upper and lower, left and right etc. described in specific embodiment are merely for convenience of understanding carried out description, are not considered as having
The restriction in body orientation.
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Fig. 1 show a kind of vertical view of structure of display panel of the utility model embodiment offer, and Fig. 2 show this reality
With the cross-sectional view in new embodiment directions A1-A2 along Fig. 1.With reference to figure 1 and Fig. 2, display provided in this embodiment
Panel includes viewing area 10 and the non-display area 20 around viewing area 10；Non-display area 20 includes around the slit area of viewing area 10
21, the part that display panel is located at slit area 21 is provided at least one groove, forms a slit 211 or a plurality of by non-display
The slit 211 that area arranges to viewing area, slit 211 are extended with curve shape along slit area 21, shape between two neighboring slit 211
Stop dam 212 at having.
With reference to figure 2, the display panel that the utility model embodiment provides includes stratified film, such as stratified film may include
Substrate, buffer layer and multilayer organic layer and inorganic layer.Stratified film can be extended to non-display area 20 by viewing area 10, optional
, the part that above-mentioned blocking dam 212 is located at slit area 21 by the stratified film is formed.In addition, display panel is located at viewing area 10
Part further include light emitting structure 104, such as can be organic electroluminescence structure OLED.Aforesaid substrate can select arbitrary conjunction
Suitable insulating materials is formed, such as to flexible display panels, substrate can by such as polyimides (PI), makrolon (PC),
Polyether sulfone (PES), polyethylene terephthalate vinegar (PET), polymethyl methacrylate (PMMA), poly- naphthalenedicarboxylic acid ethylene glycol
The polymer materials such as ester (PEN), polyarylate (PAR) or fiberglass reinforced plastics (FRP) are formed, and thickness can be
It 1 μm~20 μm, is not limited thereto.Buffer layer can be organic or inorganic material, can be used for prevent water oxygen through substrate and
Corrode display panel internal element.The film quality of inorganic layer and organic layer is not construed as limiting, and inorganic layer can be from such as silica
(SiOx), in the inorganic material of silicon nitride (SiNx), silicon oxynitride (SiOxNy), aluminium oxide (AlOx) or aluminium nitride (A1Nx) etc.
The material of selection is formed, and organic layer can be by acryl (acryl), polyimides (PI), polyester, glue, ink etc.
Organic material is formed.
In the specific implementation, inorganic layer can pass through chemical vapour deposition technique (Plasma Enhanced Chemical
Vapor Deposition, PECVD), atomic layer deposition (Atomic Layer Deposition, ALD) formation, and organic layer
It can be formed by Vitex high polymer monomers sedimentation, inkjet printing (Ink Jet Printing, IJP), slit 211 can be with
It is formed by Open mask techniques, i.e., the place for needing to form slit 211 is blocked using mask and deposited elsewhere
Material can also be formed by photoresist technique, that is, formed stratified film and later etched away the place for needing to form slit 211,
The present embodiment is not construed as limiting the technique for forming slit 211.
The display panel that the utility model embodiment provides surrounds viewing area by the non-display area setting in display panel
Slit area, the part of slit area is provided at least one groove, forms a slit or a plurality of from non-display area to display
The slit of area's arrangement, and slit is extended with curve shape along slit area so that the extensions path of non-display area crackle resolves into edge
Direction of a curve and perpendicular to direction of a curve, and then extend the path that crackle is extended to viewing area；Meanwhile two neighboring slit it
Between be formed with blocking dam, can effectively obstruct non-display area crackle further to viewing area extend.The technology of the utility model as a result,
Scheme can prevent crackle from forming water oxygen invasion channel, to improve the reliability at display panel edge, improve edge and lack color problem.
Optionally, slit area curve shape is waveform (with reference to figure 1) or zigzag.
Illustratively, Fig. 3 show the vertical view of display panel another kind structure provided by the utility model.The song of slit
Wire shaped can be fold-line-shaped (such as zigzag).It should be noted that the deformation of other curve shapes, all in the utility model
In the range of protection.By the way that slit is arranged to curve shape, the crackle generated when display panel cutting processing can be made sternly narrow
It stitches bending direction and vertical direction is decomposed, running crack prevents crackle from being extended to viewing area in the extending direction of slit area.
Optionally, display panel includes array substrate, and array substrate includes at least one layer of first inorganic layer, and slit is by first
The part that inorganic layer is located at slit is removed to be formed.
Illustratively, Fig. 2 show array substrate, and array substrate includes buffer layer, is set to buffer layer far from substrate one
The first inorganic layer of at least one layer of side, the first inorganic layer can be from such as silica (SiOx), silicon nitride (SiNx), silicon oxynitrides
(SiOxNy), it selects, can be formed using PECVD or ALD in the inorganic material of aluminium oxide (AlOx) or aluminium nitride (A1Nx) etc..
Buffer layer and at least one layer of first inorganic layer extend to slit area 21 by viewing area 10, when wherein buffer layer is inorganic material,
When forming buffer layer and at least one layer of first inorganic layer, Open mask techniques or photoresist etching technics can be utilized buffer layer
The partial etching being located at slit 211 with the first inorganic layer of at least one layer falls, further to stop the extension in crack, two slits
Remainder forms blocking dam 212 between 211.
Optionally, display panel further includes the thin-film encapsulation layer for covering array substrate, and thin-film encapsulation layer includes at least one layer
Second inorganic layer, the second inorganic layer at most extend to the blocking dam farthest apart from viewing area.The thickness of at least one layer of second inorganic layer
It is 0.2 μm~40 μm.
Illustratively, display panel further includes the thin-film encapsulation layer for covering array substrate, and thin-film encapsulation layer includes at least one
Layer the second inorganic layer, the second inorganic layer can from such as silica (SiOx), silicon nitride (SiNx), silicon oxynitride (SiOxNy),
It selects, can be formed using PECVD or ALD, and the second nothing in the inorganic material of aluminium oxide (AlOx) or aluminium nitride (A1Nx) etc.
Machine layer at most extends to the blocking dam farthest apart from viewing area, and blocking dam is made to have multiple stepped constructions.The thickness of second inorganic layer can
Think 0.2 μm~40 μm, can flexibly be selected according to plate thickness size and technique is particularly shown.
Optionally, the depth of slit can be 0.5 μm~10 μm.It is two neighboring blocking dam spacing can be 0.5 μm~
It 10 μm, can flexibly be selected according to the thickness and technique of encapsulated layer.
Optionally, the upright projection of slit on the first plane is triangle, at least one of trapezoidal and rectangle, first
Extending direction of the plane perpendicular to slit.
Illustratively, Fig. 4 is another cross-section structure signal along Fig. 1 along A1-A2 that the utility model embodiment provides
Figure, the section along the directions A1-A2 are the first plane, as shown in figure 4, slit 211 is triangle in the upright projection of the first plane；
Fig. 5 is another cross-sectional view along Fig. 1 along A1-A2 that the utility model embodiment provides, as shown in figure 5, slit
211 upright projection on the first plane is trapezoidal.The vertical throwing of slit on the first plane in the utility model embodiment
Shadow is triangle, one kind in trapezoidal and rectangle, the upright projection of different slits on the first plane may be it is above-mentioned not
Similar shape, in addition, the upright projection of slit on the first plane may be other shapes, in this regard, the present embodiment is not construed as limiting.
Optionally, in said program, viewing area includes organic electroluminescence structure.
Illustratively, Fig. 6 show a kind of schematic diagram of organic electroluminescence structure of the utility model embodiment offer,
The organic electroluminescence structure includes the cathode 1041 stacked gradually, electron transfer layer 1042, organic luminous layer 1043, hole biography
Defeated layer 1044 and anode 1045.Wherein, cathode 1041 can select with compared with low work function metal material, such as Ag, Al,
Li, Mg, Ca etc.；Electron transfer layer 1042 has electron transport ability appropriate, and aromatic compound may be used；Organic light emission
Layer 1043 includes the material of transmitting feux rouges, green light, blue light or white light, can be formed by phosphorescence or fluorescent material；Hole transmission layer
1044 have high thermal stability, form small potential barrier with anode 1045, can use triarylamine derivative；Anode 1045 can be with
Using the high transparent material tin indium oxide (ITO) of work function.
Illustratively, it is based on said program, the display panel that the utility model embodiment provides can be that flexibility OLED is aobvious
Show panel.Specifically, Fig. 7 show a kind of flexible OLED display panel structural schematic diagram provided in this embodiment, such as Fig. 7 institutes
Showing, viewing area 10 includes intersecting the multiple pixel units limited by a plurality of grid line and multiple data lines (not shown),
Pixel unit includes thin film transistor (TFT) 105 and anode 1045 and cathode 1041 positioned at 105 side of thin film transistor (TFT), anode
1045, the organic luminous layer between cathode 1041 and anode 1045 and cathode 1041 constitutes organic electroluminescence structure；Film
Transistor 105 includes polysilicon active layer 1051, grid 1052, source electrode 1053 and drain electrode 1054, source electrode 1053 and drain electrode 1054
It is electrically connected with polysilicon active layer 1051 by via, grid 1052 is electrically connected with grid line, and source electrode 1053 is electrically connected with data line
It connects, drain electrode 1054 is electrically connected with anode 1045 by via；Wherein, same technique system may be used in grid line and grid 1052
Standby, data line and source electrode 1053 or drain electrode 1054 may be used same technique and prepare.In addition, the flexibility OLED display panel is also wrapped
Include substrate 101, buffer layer 102, gate insulating layer 1031, interlayer insulating film 1032, protective layer 1033,13 peace of pixel confining layer
Smoothization layer 12.Wherein, buffer layer 102 is located at the surface of 101 side of substrate, and grid 1052 is located at buffer layer 102 far from substrate 101
The surface of side, gate insulating layer 1031 cover polysilicon active layer 1051 and are located at grid 1052 and polysilicon active layer 1051
Between, interlayer insulating film 1032 covers grid 1052 and between 1053 place film layer of source electrode and gate insulating layer 1031, protects
Sheath 1033 covers source electrode 1053, drain electrode 1054 and interlayer insulating film 1032, organic electroluminescence structure and is located at protective layer
1033 sides far from substrate 101, pixel confining layer 13 is between two neighboring organic electroluminescence structure, for defining
The position of organic electro luminescent structure, planarization layer 12 cover pixel confining layer 13 and organic electroluminescence structure.
In the present embodiment, buffer layer 102 uses organic material, can be by such as acryl (acryl), polyimides
(PI), the organic material of polyester, glue, ink etc. is formed.Buffer layer 102 can prevent steam from entering OLED from 101 bottom of substrate
Device inside causes corrosion and damage to avoid steam to OLED device；Meanwhile flexible organic material shape may be used in substrate 101
At buffer layer 102 can also prevent the precipitation of the organic material in substrate 101 from entering inside display panel, avoid organic material
Display function in display area 10 is had an impact.Gate insulating layer 1031, interlayer insulating film 1032 and protective layer 1033
Including nothings such as silica (SiOx), silicon nitride (SiNx), silicon oxynitride (SiOxNy), aluminium oxide (AlOx) or aluminium nitride (A1Nx)
Machine material can be formed using PECVD or ALD；Pixel confining layer 13 and planarization layer 12 can be by organic material or inorganic materials
It is prepared by material.Buffer layer 102, gate insulating layer 1031, interlayer insulating film 1032, protective layer 1033, pixel confining layer 13 and flat
Change in layer 12, at least partly film layer may extend to slit area, Openmask techniques or photoresist etching technics can be utilized in slit
It etches away the inorganic film in above-mentioned film layer at 211, forms slit 211, the shape of slit 211 can be rectangle, trapezoidal or three
Angular is any.
In the specific implementation, due to the edge of the close flexible display panels in blocking dam 212 positioned at non-display area itself, because
This, when flexible display panels bend, blocking dam 212 itself is also easy to crack, these crackles may also can be to
Viewing area extends.And in view of every side on blocking dam 212 is answered when being mutually perpendicular to flexible display panels bending axis direction
Stress-strain is maximum, therefore, can all etch away the inorganic film of slit area, blocking dam is independently formed using fibrous material
212, and when extending direction of fibrous material is consistent with the extending direction of slit 211 be most avoided that the generation of its own crackle.
Optionally, Fig. 8 is the flexible OLED display panel structural schematic diagram of another kind that the utility model embodiment provides.Such as
Shown in Fig. 8, in the display panel that the utility model embodiment provides, resistance can also be formed by stopping in the slit 211 between dam 212
Stopper 30, the bottom interval certain distance of the bottom and blocking dam 212 of blocking portion 30, can further block crackle from slit 211
The extension of bottom.Optionally, the material of blocking portion 30 can be one kind or more in carbon fiber, glass fibre and carbon nanotube
Kind, and the extending direction of blocking portion 30 is consistent with the extending direction of slit 211.Wherein, the height of blocking portion 30 can be less than resistance
The height of dam 212, can also be greater than or equal to the height on blocking dam 212, and the present embodiment is not construed as limiting.
Fig. 9 is the flexible OLED display panel structural schematic diagram of another kind that the utility model embodiment provides；Figure 10 is this
The flexible OLED display panel structural schematic diagram of another kind that utility model embodiment provides.In the present embodiment, flexible OLED is shown
Panel further includes the thin-film encapsulation layer for covering viewing area, which can be the folded of inorganic layer, organic layer and inorganic layer
Layer structure, so can form good protection to the OLED device of display area 10, be made to OLED device with water oxygen resistant invasion
At corrosion and damage.Optionally, as shown in figure 9, the inorganic layer in thin-film encapsulation layer 11 can extend to slit area by viewing area 10, but
At most extend to the blocking dam 212 farthest apart from viewing area.Inorganic layer of the avoidable crack propagation to thin-film encapsulation layer 11 as a result,
In, to prevent water oxygen from being penetrated into OLED device by thin-film encapsulation layer.Optionally, as shown in Figure 10, in thin-film encapsulation layer 11
Inorganic layer can also only extend in the slit 211 nearest apart from viewing area 10, not only can to viewing area carry out it is fully enclosed, but also
It can further avoid in crack propagation to the inorganic layer of thin-film encapsulation layer 11, to prevent water oxygen from being penetrated by thin-film encapsulation layer
In OLED device.
The utility model additionally provides a kind of display device, including the display panel described in any embodiment as above.This is aobvious
Showing device can be the product with display function such as mobile phone, smartwatch, computer and tablet computer.
Obviously, above-described embodiment of the utility model is used for the purpose of clearly illustrating the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (10)
1. a kind of display panel, which is characterized in that including：Viewing area and non-display area around the viewing area；
The non-display area includes around the slit area of the viewing area, and the part that the display panel is located at the slit area is set
It is equipped at least one groove, forms a slit or a plurality of slit arranged from the non-display area to the viewing area, it is described
Slit is extended with curve shape along the slit area, and blocking dam is formed between the two neighboring slit.
2. display panel according to claim 1, which is characterized in that the curve shape is waveform or zigzag.
3. display panel according to claim 1, which is characterized in that the display panel includes array substrate, the battle array
Row substrate includes at least one layer of first inorganic layer, and the part that the slit is located at the slit by first inorganic layer is gone
Except formation.
4. display panel according to claim 3, which is characterized in that further include the thin-film package for covering the array substrate
Layer, the thin-film encapsulation layer include at least one layer of second inorganic layer, and second inorganic layer is at most extended to apart from the viewing area
The farthest blocking dam.
5. display panel according to claim 4, which is characterized in that the thickness of at least one layer of second inorganic layer is
0.2μm~40μm。
6. display panel according to claim 3, which is characterized in that the depth of the slit is 0.5 μm ~ 10 μm.
7. display panel according to claim 1, which is characterized in that it is two neighboring it is described blocking dam spacing be 0.5 μm ~
10μm。
8. display panel according to claim 1, which is characterized in that the upright projection of the slit on the first plane is
At least one of triangle, trapezoidal and rectangle, extending direction of first plane perpendicular to the slit.
9. display panel according to claim 1, which is characterized in that the viewing area includes organic electroluminescence structure.
10. a kind of display device, which is characterized in that include the display panel as described in claim 1 ~ 9 is any.
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