CN108766983A - Organic light emitting display panel and display device - Google Patents
Organic light emitting display panel and display device Download PDFInfo
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- CN108766983A CN108766983A CN201810531139.7A CN201810531139A CN108766983A CN 108766983 A CN108766983 A CN 108766983A CN 201810531139 A CN201810531139 A CN 201810531139A CN 108766983 A CN108766983 A CN 108766983A
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- support column
- light emitting
- organic light
- display panel
- dam
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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
Abstract
The invention discloses a kind of organic light emitting display panel and display device, which includes substrate, has viewing area and the non-display area positioned at non-display area；Organic luminescence function layer is located at viewing area, and organic luminescence function layer has multiple open regions and the non-open region outside open region, and organic luminescence function layer includes common cathode layer；Several support columns, support column are located at non-open region, and common cathode layer is covered on support column；And blocking dam, it is located at non-display area, and be arranged around viewing area；Wherein, stop that the maximum height on dam is more than the minimum constructive height of support column.By means of the invention it is possible to reduce due to the probability that support column falls off and organic light emitting display panel is caused blackening occur.
Description
Technical field
The present invention relates to organic light emitting display technical fields, more particularly, to a kind of organic light emitting display panel and show
Showing device.
Background technology
With the development of the technologies such as big data, cloud computing and mobile Internet, when the mankind enter intelligent comprehensively
The smart machines such as generation, including intelligent mobile communication terminal, the wearable and smart home of intelligence, have become in work and life
Indispensable part.As the important window of intellectualization times human-computer interaction, also major transformation is occurring for display panel.Its
In, organic light emitting display panel because its thickness it is thin, it is lighter, actively shine, picture is bright-coloured, low in energy consumption, flexibility is good and color
The advantages such as domain is wide, have become the display technology of new generation after Thin Film Transistor-LCD technology.In the prior art,
Organic light emitting display panel usually will appear blackening, influence the quality of organic light emitting display panel.
Therefore it provides a kind of organic light emitting display panel and display device, reduce in organic light emitting display panel and occur secretly
The probability of spot is this field urgent problem to be solved.
Invention content
In view of this, the present invention provides a kind of organic light emitting display panel and display device, solve in the prior art
Organic light emitting display panel is susceptible to the technical issues of blackening.
In order to solve the above-mentioned technical problem, the present invention proposes a kind of organic light emitting display panel.
The organic light emitting display panel includes：Substrate has viewing area and the non-display area positioned at the non-display area；
Organic luminescence function layer, is located at the viewing area, and the organic luminescence function layer has multiple open regions and is located at the opening
Non- open region outside area, the organic luminescence function layer include common cathode layer；Several support columns, the support column are located at described
Non- open region, the common cathode layer are covered on the support column；And blocking dam, it is located at the non-display area, and surround
The viewing area setting；Wherein, the maximum height on the blocking dam is more than the minimum constructive height of the support column.
In order to solve the above-mentioned technical problem, the present invention proposes a kind of display device.
Display device provided by the invention includes any one organic light emitting display panel provided by the invention.
Compared with prior art, organic light emitting display panel and display device of the invention realize following beneficial effect
Fruit：
Due in the organic light emitting display panel of the present invention, stopping that the maximum height on dam is more than the minimum constructive height of support column,
When carrying out film layer vapor deposition using common metal mask plate so that blocking dam can form common metal mask plate and support,
The contraposition of common metal mask plate pushes or when misplacing, at least the support column of guarantee section support column namely minimum constructive height,
It will not be damaged by common metal mask plate, reduce the impaired probability of organic light emitting display panel upper support column, in turn, reduce branch
The influence that dagger normally encapsulates encapsulated layer after falling off reduces the damage to common cathode layer during support column falls off, to
It reduces organic light emitting display panel and the probability of blackening occurs, be finally reached the technology effect for promoting organic light emitting display panel quality
Fruit.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Description of the drawings
It is combined in the description and the attached drawing of a part for constitution instruction shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is a kind of film layer structure figure of the organic light emitting display panel provided in the prior art；
Fig. 2 is a kind of schematic diagram of the high-precision metal mask plate provided in the prior art；
Fig. 3 is a kind of schematic diagram of the common metal mask plate provided in the prior art；
Fig. 4 is a kind of organic light emitting display panel vertical view provided in an embodiment of the present invention；
Fig. 5 is a kind of film layer structure figure of organic light emitting display panel provided in an embodiment of the present invention；
Fig. 6 is another organic light emitting display panel vertical view provided in an embodiment of the present invention；
Fig. 7 is another organic light emitting display panel vertical view provided in an embodiment of the present invention；
Fig. 8 is another organic light emitting display panel vertical view provided in an embodiment of the present invention；
Fig. 9 is another organic light emitting display panel vertical view provided in an embodiment of the present invention.
Figure 10 is a kind of sectional view on the blocking dam of organic light emitting display panel provided in an embodiment of the present invention；
Figure 11 is another organic light emitting display panel sectional view provided in an embodiment of the present invention；
Figure 12 is another organic light emitting display panel sectional view provided in an embodiment of the present invention；
Figure 13 is the schematic diagram of display device provided in an embodiment of the present invention.
Specific implementation mode
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should be noted that：Unless in addition having
Body illustrates that the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to the present invention
And its application or any restrictions that use.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
The reason of the application is susceptible to blackening to organic light emitting display panel carries out the following studies：
Fig. 1 is a kind of film layer structure figure of the organic light emitting display panel provided in the prior art, as shown in Figure 1, existing
The organic luminescence function layer 20 ' that organic light emitting display panel in technology generally includes substrate 10 ', is arranged on substrate 10 ' with
And to the encapsulated layer 30 ' that organic luminescence function layer 20 ' is packaged, substrate 10 ' includes the line constructions such as thin film transistor (TFT) T ',
Organic luminescence function layer 20 ' includes anode, cathode and the luminous organic material being set between anode and cathode, meanwhile, also
Auxiliary light emission functional layer including being set between anode and luminous organic material, between cathode and luminous organic material is (in figure
It is not shown), wherein organic luminescence function layer 20 ' has multiple open regions and the non-open region outside open region, each to be open
It is correspondingly arranged organic luminescent material in area, forms a light emitting sub-pixel.
Substrate 10 ' is formed using flexible material, and encapsulated layer 30 ' uses the organic light emitting display face that thin film encapsulation technology is realized
Plate is flexible organic light emitting display panel.Wherein, it when encapsulated layer 30 ' is realized using thin film encapsulation technology, generally includes several to have
The stacked structure that machine layer and inorganic layer are formed shows the encapsulated layer that the sandwiched one layer of organic layer of two layers of inorganic layer is formed in Fig. 1
30'.In addition, being additionally provided with blocking dam 40 ' in organic light emitting display panel, it can stop organic layer material in the encapsulated layer 30 '
Spilling to realize encapsulation, meanwhile, organic light emitting display panel further includes support column 50 ', in organic light emitting display panel
Processing procedure in, high-precision metal mask plate (FMM) is supported, to realize that, to the vapor deposition of luminous organic material, Fig. 2 is in the prior art
A kind of schematic diagram of the high-precision metal mask plate provided, in high-precision metal mask plate shown in Fig. 2, be each open H1 '
A corresponding light emitting sub-pixel, position corresponding to light emitting sub-pixel is deposited by luminous organic material.It should be noted that Fig. 2
The opening number of middle high-precision metal mask plate and arrangement are only used for schematically describing the structure of high-precision metal mask plate, and
The restriction to high-precision metal mask plate is not constituted.
Inventor has found the above-mentioned organic light emitting display panel research for generating blackening：In the position for generating blackening, a side
Face, the cathode near blackening have damaged appearance, influence whether the display of organic luminescence function layer 20 ' at the position, on the other hand,
There is bezel locations close to blackening foreign matter, the normal encapsulation of the foreign materials away to encapsulated layer 30 ' to cause encapsulated layer 30 ' at this
Failure at foreign matter position, and then influence the display of the organic luminescence function layer 20 ' at the 30 ' position of encapsulated layer of near failure.
To this phenomenon, inventor further study show that：Foreign matter at this is shape after certain 50 ' phenomenon partial exfoliation of support column
At, also, damaged cathode is formed in the region between former support column 50 ' and foreign matter, actually by former support column 50 ' de-
It scratches and is formed during falling.
About the falling-away cause of former support column 50 ', inventor continues to study：When making organic light emitting display panel, lead to
It is often to make polylith panel simultaneously, is then cut again, wherein the auxiliary light emission functional layer of different panels is mutual indepedent, together
The auxiliary light emission functional layer of one panel is public film layer, thus, when auxiliary light emission functional layer is deposited, using common metal mask
Plate, Fig. 3 are a kind of schematic diagram of the common metal mask plate provided in the prior art, and common metal shown in Fig. 3 is covered
In template, the H2 ' that is each open corresponds to an organic light emitting display panel, and position corresponding to panel is deposited in auxiliary light emission functional layer
It sets.It should be noted that the opening number of common metal mask plate and arrangement are only used for schematically describing common metal in Fig. 3
The structure of mask plate does not constitute the restriction to common metal mask plate.
For the common metal mask plate, supported by blocking dam 40 ' when auxiliary light emission functional layer is deposited, wherein general
During logical metal mask plate pushes, it is easy to damage support column 50 ', and then the phenomenon that support column 50 ' falls off occur.
Based on the above research, a kind of organic light emitting display panel of the application proposition and display device are de- to reduce support column
There is the problem of blackening in organic light emitting display panel caused by falling, and the quality of organic light emitting display panel is improved, about the application
The organic light emitting display panel and display device of offer, will will be more fully described by the following example.
In one embodiment, Fig. 4 is a kind of organic light emitting display panel vertical view provided in an embodiment of the present invention, Fig. 5
For a kind of film layer structure figure of organic light emitting display panel provided in an embodiment of the present invention, wherein Fig. 5 is the cutting line along Fig. 4
The sectional view that A-A is obtained, as shown in Figure 4 and Figure 5, organic light emitting display panel include substrate 10, organic luminescence function layer 20, resistance
Dam 40 and several support columns 50.
Wherein, substrate 10 has the viewing area AA and non-display area BA positioned at the peripheries viewing area AA.Wherein, substrate 10 includes
Substrate 11, buffer layer 12, thin film transistor (TFT) T, gate insulation layer 13, interlayer insulating film 14, passivation layer 15 and planarization layer 16.
For flexible organic light emitting display panel, substrate 11 is flexible substrates, specifically can be by with arbitrary conjunction flexible
Suitable insulating materials is formed.For example, flexible substrates can be by such as polyimides (PI), makrolon (PC), polyether sulfone
(PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyarylate (PAR) or glass
The polymer materials such as glass fibre reinforced plastics (FRP) are formed.
Buffer layer 12 is provided in substrate 11, buffer layer 12 covers the entire upper surface of substrate 11.For example, buffer layer 12 wraps
Include inorganic layer or organic layer.For example, buffer layer 12 can be by from such as silica (SiOx), silicon nitride (SiNx), silicon oxynitride
(SiOxNy), the inorganic material or such as acryl (acryl), polyimides of aluminium oxide (AlOx) or aluminium nitride (AlNx) etc.
(PI) or in the organic material of polyester etc. the material selected is formed.Buffer layer 12 may include single layer or multiple layers.Buffer layer 12
Stop oxygen and moisture, prevents moisture or impurity from being spread by substrate 11, and provide flat table on the upper surface of substrate 11
Face.
Thin film transistor (TFT) T is located on buffer layer 12, including semiconductor active layer A, gate electrode G, source electrode S and drain electrode D.
By taking the thin film transistor (TFT) T of top gate type as an example, thin film transistor (TFT) T includes the semiconductor active layer A being located on buffer layer 12, semiconductor
Active layer A includes the source region and drain region formed by doped N-type foreign ion or p type impurity ion.In source electrode
Region between region and drain region is the channel region of impurity of wherein undoping.Semiconductor active layer A can pass through amorphous
The crystallization of silicon makes non-crystalline silicon change into polysilicon and be formed.In order to make recrystallized amorphous silicon, such as rapid thermal annealing can be utilized
(RTA) method, solid-phase crystallization (SPC) method, quasi-molecule laser annealing (ELA) method, crystallization inducing metal (MIC) method, metal inducement are horizontal
To the various methods such as crystallization (MILC) method or continuously transverse solidifying (SLS) method.
Gate insulation layer 13 includes such as inorganic layer of silica, silicon nitride or metal oxide, and may include single layer
Or multiple layers.
Gate electrode G is located in the specific region on gate insulation layer 13.Gate electrode G may include golden (Au), silver-colored (Ag), copper
(Cu), the single-layer or multi-layer of nickel (Ni), platinum (Pt), palladium (Pd), aluminium (Al), molybdenum (Mo) or chromium (Cr), or such as aluminium (Al), neodymium
(Nd) alloy of alloy, molybdenum (Mo) and tungsten (W) alloy.
Interlayer insulating film 14 is located on gate electrode G.Interlayer insulating film 14 can be by the insulation nothing of silicon oxide or silicon nitride etc.
Machine layer is formed.Selectively, interlayer insulating film 14 can be formed by insulative organic layer.
Source electrode S and drain electrode G is located on interlayer insulating film 14.Source electrode S and drain electrode D are electrically connected by contact hole respectively
(or combination) is connect to source region and drain region, contact hole is by being optionally removed gate insulation layer 13 and interlayer insulating film
14 and formed.
Passivation layer 15 is located on source electrode S and drain electrode D.Passivation layer 15 can be by the inorganic layer of silicon oxide or silicon nitride etc.
It is formed or is formed by organic layer.
Planarization layer 16 is located on passivation layer 15.Planarization layer 16 includes acryl, polyimides (PI) or benzocyclobutane
The organic layer of alkene (BCB) etc..
Organic luminescence function layer 20 is located at viewing area AA, has multiple open region O and the non-open region outside the O of open region
NO, specifically, organic luminescence function layer 20 include anode metal layer 21, pixel defining layer 22, luminescent layer 23 and common cathode layer
24。
Wherein, anode metal layer 21 includes multiple anodes, respectively by contact hole electrical connection (or combine) to source electrode S or
Drain electrode D.Anode metal layer 21 can be formed by various conductive materials.For example, anode may include tin indium oxide (ITO), oxygen
Change indium zinc (IZO), zinc oxide (ZnO) or indium oxide (In2O3) etc..
Pixel confining layer 22 is located on planarization layer 16, to cover the edge of anode.For example, the picture around the edge of anode
Plain confining layers 22 limit the emitting area of each sub-pixel.Pixel confining layer 22 can by such as polyimides (PI), polyamide,
The organic material of benzocyclobutene (BCB), acryl resin or phenolic resin etc. is formed.
Luminescent layer 23 is located on anode, this part that luminescent layer 23 is provided on anode is not covered by pixel confining layer 22
And it is exposed.Luminescent layer 23 can be formed by evaporation process, luminescent layer 23 be patterned as it is corresponding with each sub-pixel,
That is, corresponding with patterned anode.Luminescent layer 23 can be formed by low molecular weight organic material or high molecular weight organic materials, hair
Photosphere 23 includes organic emission layer, and can also include hole injection layer (HIL), hole transmission layer (HTL), electron transfer layer
(ETL) and at least one of electron injecting layer (EIL).
Common cathode layer 24 is located on luminescent layer 23.Anode and common cathode layer 24 are insulated from each other by luminescent layer 23.Such as
Fruit applies voltage between anode and common cathode layer 24, then luminescent layer 23 emits visible light, can be known by user to realize
Other image.
Support column 50 is located at non-open region NO, and common cathode layer 24 is covered on support column 50, and support column 50 is used to support
Used high-precision metal mask mask plate when luminescent layer 23 is deposited.
For example, organic light emitting display panel further includes encapsulated layer 30, it is located on organic luminescence function layer 20, protects luminescent layer
23 and other thin layers from the influence of outside moisture and oxygen etc., for flexible organic light emitting display panel, encapsulated layer 30 is
Flexible package layer, encapsulated layer 30 include inorganic layer and organic layer.Inorganic layer and organic layer are staggeredly stacked.
Blocking dam 40 is located at non-display area BA, and is arranged around viewing area AA, for organic layer in barrier encapsulation layer 30
It overflows, meanwhile, it is also used for supporting the common metal mask plate for public film layer (such as auxiliary light emission functional layer) to be deposited.Its
In, the maximum height on blocking dam 40 is more than the minimum constructive height of support column 50.
About stopping that the height on dam 40 and support column 50 carries out following definition in conjunction with shown in Fig. 5 in the application, if base
Surface of the plate 10 far from 20 side of organic luminescence function layer be the first plane S0, blocking dam 40 far from 10 1 side end face S1 of substrate with
The distance between first plane S0 is the height h40 for stopping dam 40, when the end face S1 of blocking 40 various pieces of dam is in same plane
When on (ignoring fabrication error), stop that the height h40 of 40 various pieces of dam is consistent；Be set as with lug boss when blocking dam 40 and
When the convex-concave structure of recessed portion, stop that the height h40 of 40 various pieces of dam is inconsistent, the maximum height on blocking dam 40 can be located at
Stop the arbitrary portion on dam 40.For any support column 50, support column 50 is far from substrate 10 1 side end face S2 and the first plane S0
The distance between be support column 50 height h50, wherein the height of each support column 50 can be identical in organic light emitting display panel
It (ignoring fabrication error), can also be different, the support column of minimum constructive height can be located in the AA of organic light emitting display panel viewing area
Any position.
It should be noted that number and arrangement of the support column 50 being presented in Fig. 4 in the AA of viewing area, and hereinafter
Number and arrangement of the support column 50 of appearance in the AA of viewing area are only used for schematically describing several supports in viewing area
Column does not constitute the restriction to actual product.
The organic light emitting display panel provided using the embodiment is carrying out film layer vapor deposition using common metal mask plate
When, since the maximum height on blocking dam is more than the minimum constructive height of support column so that blocking dam can be to common metal mask plate shape
At support, the contraposition of common metal mask plate, push or misplace when, at least guarantee section support column namely minimum constructive height
Support column, will not be damaged by common metal mask plate, reduce the impaired probability of organic light emitting display panel upper support column, into
And reduce the influence normally dispensed to encapsulated layer after support column falls off, it reduces during support column falls off to common cathode layer
, there is the probability of blackening to reduce organic light emitting display panel in damage, is finally reached and promotes organic light emitting display panel quality
Technique effect.
In one embodiment, with continued reference to FIG. 5, to stop that the height h40 on dam 40 is blocking dam 40 shown in Fig. 5
Maximum height stop height h40 and the support on dam 40 for the height h50 of support column 50 is the minimum constructive height of support column 50
Difference between the height h50 of column 50 is 0.2 micron to 0.6 micron, optionally, for stopping top and the support column 50 on dam 40
The case where being made of identical organic material is ± 0.2um in view of usual organic material uniformity fluctuations, then the difference of the two is
0.4 micron.
In organic light emitting display panel, stop that dam and support column generally use organic material are made, using the embodiment
The organic light emitting display panel of offer limits the difference range between the maximum height and the minimum constructive height of support column on blocking dam,
On the one hand, ensure that the difference in height of the two can compensate for the uniformity fluctuations of material filming, under identical compression ratio, hinder
Dam can form support column and protect, and on the other hand, avoid the negative effect of the too big generation of difference in height of the two, for example,
It when the minimum constructive height of support column is too small, is easy to influence support of the support column to high-precision metal mask plate, stops that the maximum on dam is high
When Du Taigao, the increase of organic light emitting display panel thickness is caused.
In one embodiment, please continue to refer to Fig. 4 and Fig. 5, organic light emitting display panel is using the double-deck knot for stopping dam
Structure, specifically, blocking dam 40 include that the first blocking dam 41 and second stops dam 42, are being directed toward non-display area BA's by viewing area AA
On direction, the second blocking dam 42 is set to the first side of the blocking dam 41 far from the areas display AA, and the structure on dam is stopped by bilayer,
The reliability for further promoting encapsulation, for the structure on the double-deck blocking dam, the maximum height on the first blocking of setting dam 41 is more than branch
The minimum constructive height of dagger 41, and the height of first blocking 41 each position of dam is all higher than or equal to second blocking 42 each position of dam
Height, will to the primary force of common metal mask plate be more closely to support column 50 first blocking dam 41, general
During logical metal mask plate pushes, the probability of damage to support column is further decreased.
Fig. 6 is another organic light emitting display panel vertical view provided in an embodiment of the present invention, and Fig. 7 is the embodiment of the present invention
Another the organic light emitting display panel vertical view provided, Fig. 8 are another organic light emitting display provided in an embodiment of the present invention
Panel vertical view, Fig. 9 are another organic light emitting display panel vertical view provided in an embodiment of the present invention.
In one embodiment, as shown in Figures 6 to 9, the substrate of organic light emitting display panel has viewing area AA and non-
Viewing area BA, viewing area AA include the first area AA1 adjacent with non-display area BA, and second in addition to the AA1 of first area
Region AA2.First area AA1 includes at least the first support column 51, and second area AA2 includes at least the second support column 52, blocking
Dam 40 has with the first support column 51 apart from nearest first part 40a, and stops that the height of the first part 40a on dam 40 is more than
The height of first support column 51.
Wherein, during common metal mask plate aligns, the impaired probability of support column close to blocking dam is larger,
In the organic light emitting display panel that the embodiment provides, in the display area in a region adjacent with non-display area, at least
First support column is set, and the height on the part blocking dam nearest with first support column distance is made to be more than first support column
Height, that is, close to blocking dam the first support column be less than the blocking dam part adjacent with the support column, this part stop dam
Higher than close to its first support column, during contraposition, the impaired probability of the first support column is reduced, to being easier to be damaged
The first support column form protection, can significantly reduce the probability of damage to support column in organic light emitting display panel.
Optionally, first area AA1 includes at least the first support column 51, can be with all first support columns 51, can also
Part is the first support column 51.In one embodiment, as shown in fig. 6, the first support column is all arranged in the AA1 of first area
All support columns are below the first part on the blocking dam 40 adjacent with first area AA1 in 51 namely first area AA1
40a.In another embodiment, as shown in figure 8, can in the AA1 of first area the first support column of setting unit 51, that is,
For part support column in one region AA1 less than blocking 40 first part 40a of dam, part support column is equal to blocking 40 first part of dam
40a。
Optionally, second area AA2 includes at least the second support column 52, can be with all second support columns 52, can also
Part is the second support column 52.In one embodiment, as shown in fig. 6, being respectively provided with the second support column in second area AA2
52, that is, the height of support column all in second area AA2 is identical.It in another embodiment, as shown in figure 8, can be
The second support column of setting unit 52 in two region AA2, that is, the height of support column all in second area AA2 differs.
Optionally, the height of the second support column 52 can be identical as the height of the first support column 51, can also be more than first
The height of support column 51.In one embodiment, as shown in fig. 6, the height of the first support column 51 is less than the second support column 52
Highly；In another embodiment, as shown in fig. 7, the first support column 51 is identical as the height of the second support column 52.
Optionally, blocking dam 40 can have uniform height, the height that may be set to be various pieces to differ.?
In a kind of embodiment, as shown in Figure 6 and Figure 8, blocking dam 40 has uniform height, thus, stop the height of 40 various pieces of dam
Degree is all higher than the height of the first support column 51.In one embodiment, Figure 10 is a kind of organic hair provided in an embodiment of the present invention
The sectional view on the blocking dam of light display panel, and Figure 10 is the sectional view that tangent line B-B is obtained along Fig. 7 or Fig. 9, such as Fig. 7, Fig. 9
Shown in Figure 10, stop that the highly non-uniform of dam 40, the height of blocking 40 first part 40a of dam are more than the height of the first support column 51
Degree, the height of other positions can be identical as the height of the first support column 51.
For stop dam it is highly non-uniform in the case of, optionally, with continued reference to Fig. 7, Fig. 9 and Figure 10, blocking dam 40 is set
It is set to the convex-concave structure with lug boss 401 and recessed portion 402, wherein the first part 40a on blocking dam 40 includes lug boss
401, realize that the height of the first part 40a on blocking dam 40 is more than the height of the first support column 51 by the way that lug boss 401 is arranged.
In a kind of specific embodiment, as shown in Figure 9 and Figure 10, blocking dam 40 is set as with lug boss 401 and recessed
The height of the convex-concave structure of concave portion 402, the second support column 52 is more than the height of the first support column 51 and is equal to the convex of blocking dam 40
The height in portion 401 is played, that is, the lug boss of the second support column 52 and blocking dam 40 in the middle part of organic light emitting display panel
401 height is identical, is located at the height of first support column 51 and the recessed portion 402 on blocking dam 40 at organic light emitting display panel edge
It spends identical.
In a kind of specific embodiment, as illustrated in fig. 7 and fig. 10, blocking dam 40 is set as with lug boss 401 and recessed
The convex-concave structure of concave portion 402, the height of the second support column 52 are equal to the height of the first support column 51, that is, being located at organic light emission
The height of the support column of each position of display panel is identical, and is equal to the height of the recessed portion 402 on blocking dam 40.
In a kind of specific embodiment, as shown in fig. 6, blocking dam 40 is whole to have uniform height, the first support column
51 height is less than the height on blocking dam 40, and the height of the second support column 52 is equal to the height on blocking dam 40, and in first area
First support column 51 is all set in AA1, the second support column 52 is all set in second area AA2, that is, being located at organic hair
The second support column 52 in the middle part of light display panel is identical as blocking 40 height of dam, is located at the first of organic light emitting display panel edge
Support column 51 is less than the height on blocking dam 40, the preferable support column being easily damaged realized to organic light emitting display panel edge
Protection reduces the complexity of blocking 40 technique of dam simultaneously as the height of blocking 40 various pieces of dam is identical.
In one embodiment, Figure 11 is another organic light emitting display panel vertical view provided in an embodiment of the present invention,
Figure 12 is another organic light emitting display panel vertical view provided in an embodiment of the present invention, as is illustrated by figs. 11 and 12, substrate 10
Including planarization layer 16, organic luminescence function layer includes pixel defining layer 22, and blocking dam includes with planarization layer 16 positioned at same
First dam portion 4a of film layer, it is located at the second dam portion 4b of same film layer with pixel defining layer 22 and is located at same film with support column 50
The third dam portion 4c of layer.
The first dam is formed while the organic light emitting display panel that the embodiment provides, the processing procedure for making planarization layer 16
Portion 4a is making pixel defining layer 22, in the processing procedure for etching the open region for forming organic light emitting functional layer, can be formed simultaneously second
Dam portion 4b in the processing procedure for making support column 50, while making third dam portion 4c, need not be fabricated separately, make to blocking dam 40
Journey is simple for process.
Wherein, the organic light emitting display panel that embodiment shown in Figure 11 provides is double-deck dam structure, has the first blocking
Dam 41 and second stops dam 42, and two blocking dams are accordingly set as contour, and two blocking dams respectively include the first dam portion 4a, the
Two dam portion 4b and third dam portion 4c.The organic light emitting display panel that embodiment shown in Figure 12 provides has single layer dam structure.
Specifically, as shown in figure 11, the thickness d 1 of setting third dam portion 4c is more than the thickness d 2 of support column 50, while third
The bottom surface of dam portion 4c is equal to the bottom surface of support column 50 at a distance from the first plane S0 at a distance from the first plane S0, is in figure
d3.Using the embodiment, when realizing that the maximum height on blocking dam 40 is more than the minimum constructive height of support column 50, pixel defining layer 22
It can be set as uniform on entire display panel with each thicknesses of layers in substrate 10, only be existed by the film layer where support column 50
The thickness of each position is different, to realize the difference in height between blocking dam 40 and support column 50.
Specifically, as shown in figure 12, the thickness d 1 of setting third dam portion 4c is equal to the thickness d 2 of support column 50, meanwhile, the
The bottom surface of one dam portion 4a is with the first plane S0 distances d4 more than planarization layer 16 at 50 position of support column close to 11 side of substrate
Surface and the first plane S0 distances d5.Using the embodiment, realizing the maximum height on blocking dam 40 more than support column 50
When minimum constructive height, the thickness of the film layer where support column 50 and the thickness of pixel defining layer 22 can be on entire display panels
It is set as uniform, during making substrate 10, the thickness of one or several film layers at 40 position of dam can be stopped by setting
Degree, it is different from the thickness of corresponding film layer at 50 position of support column, to realize the difference in height between blocking dam 40 and support column 50
It is different.
It is the embodiment of organic light emitting display panel provided in an embodiment of the present invention above, it is aobvious that the present invention also provides one kind
Showing device, Figure 13 are the structural schematic diagram of display device provided in an embodiment of the present invention, and as shown in figure 13, which includes
Shell 01 and the organic light emitting display panel 02 being wrapped within shell 01, the organic light emitting display panel 02 are above-mentioned any one
The organic light emitting display panel that kind embodiment provides, has corresponding technical characteristic and technique effect, details are not described herein.
By above-described embodiment it is found that the organic light emitting display panel and display device of the present invention, having reached following has
Beneficial effect：Since the maximum height on blocking dam is more than the minimum constructive height of support column, film layer is being carried out using common metal mask plate
When vapor deposition so that blocking dam can form common metal mask plate and support, and in the contraposition of common metal mask plate, push or occur
When dislocation, at least support column of guarantee section support column namely minimum constructive height will not be damaged by common metal mask plate, be reduced
The impaired probability of organic light emitting display panel upper support column, in turn, what reduction support column normally dispensed encapsulated layer after falling off
It influences, reduces the damage to common cathode layer during support column falls off, blackening occur to reduce organic light emitting display panel
Probability, be finally reached promoted organic light emitting display panel quality technique effect.
Although some specific embodiments of the present invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to illustrating, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above example.This hair
Bright range is defined by the following claims.
Claims (12)
1. a kind of organic light emitting display panel, which is characterized in that including：
Substrate has viewing area and the non-display area positioned at the non-display area；
Organic luminescence function layer, is located at the viewing area, and the organic luminescence function layer has multiple open regions and positioned at described
Non- open region outside open region, the organic luminescence function layer include common cathode layer；
Several support columns, the support column are located at the non-open region, and the common cathode layer is covered on the support column；With
And
Stop dam, is located at the non-display area, and be arranged around the viewing area；
Wherein, the maximum height on the blocking dam is more than the minimum constructive height of the support column.
2. organic light emitting display panel according to claim 1, which is characterized in that
The blocking dam includes the first blocking dam and the second blocking dam, in the direction for being directed toward the non-display area by the viewing area
On, second blocking dam is set to first blocking side of the dam far from the viewing area；
The maximum height on first blocking dam is more than the minimum constructive height of the support column, and the first blocking each position in dam
Height be all higher than or equal to it is described second blocking each position in dam height.
3. organic light emitting display panel according to claim 1, which is characterized in that
The viewing area includes the first area adjacent with the non-display area, and the secondth area in addition to the first area
Domain；
The first area includes at least the first support column, and the second area includes at least the second support column, the blocking dam
With with first support column apart from nearest first part；
The height of the first part on the blocking dam is more than the height of first support column.
4. organic light emitting display panel according to claim 3, which is characterized in that
The blocking dam is set as the convex-concave structure with lug boss and recessed portion, wherein first part's packet on the blocking dam
Include the lug boss.
5. organic light emitting display panel according to claim 4, which is characterized in that
The height of second support column is more than the height of first support column and equal to the first part on the blocking dam
Highly.
6. organic light emitting display panel according to claim 4, which is characterized in that
The height of second support column is equal to the height of first support column.
7. organic light emitting display panel according to claim 3, which is characterized in that
The blocking dam has uniform height；
The height of second support column is equal to the height on the blocking dam.
8. organic light emitting display panel according to claim 1, which is characterized in that
The substrate further includes planarization layer；
The organic luminescence function layer further includes pixel defining layer；
The blocking dam includes being located at the first dam portion of same film layer with the planarization layer, being located at together with the pixel defining layer
Second dam portion of one film layer and the third dam portion for being located at same film layer with the support column.
9. organic light emitting display panel according to claim 1, which is characterized in that
The organic light emitting display panel is flexible display panels.
10. organic light emitting display panel according to claim 9, which is characterized in that
The organic light emitting display panel further includes flexible package layer, is set to one of the common cathode layer far from the substrate
Side.
11. organic light emitting display panel according to claim 1, which is characterized in that
Difference between the maximum height and the minimum constructive height of the support column on the blocking dam is 0.2 micron to 0.6 micron.
12. a kind of display device, which is characterized in that including the organic light emitting display face described in any one of claim 1 to 11
Plate.
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| CN201810531139.7A CN108766983A (en) | 2018-05-29 | 2018-05-29 | Organic light emitting display panel and display device |
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| CN201810531139.7A CN108766983A (en) | 2018-05-29 | 2018-05-29 | Organic light emitting display panel and display device |
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| CN201810531139.7A Pending CN108766983A (en) | 2018-05-29 | 2018-05-29 | Organic light emitting display panel and display device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285967A (en) * | 2018-12-11 | 2019-01-29 | 云谷（固安）科技有限公司 | Flexible display panels and preparation method thereof, flexible display apparatus |
| CN109671860A (en) * | 2018-12-13 | 2019-04-23 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN109713023A (en) * | 2019-01-29 | 2019-05-03 | 昆山国显光电有限公司 | The preparation method of display panel, display device and display panel |
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| CN112435581A (en) * | 2020-11-30 | 2021-03-02 | 京东方科技集团股份有限公司 | Flexible display structure, flexible display screen and electronic equipment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900681A (en) * | 2015-06-09 | 2015-09-09 | 上海天马有机发光显示技术有限公司 | Organic light-emitting display panel and forming method thereof |
| US9207499B2 (en) * | 2010-08-10 | 2015-12-08 | Samsung Display Co., Ltd. | Display substrate, display device including the same, and method of manufacturing the display substrate comprising first and second column spacers that protrude from a black matrix pattern |
| CN107479260A (en) * | 2017-09-08 | 2017-12-15 | 深圳市华星光电技术有限公司 | COA substrates and preparation method thereof, display panel |
| CN206758472U (en) * | 2016-12-27 | 2017-12-15 | 霸州市云谷电子科技有限公司 | A kind of organic electroluminescence device |
| CN107785402A (en) * | 2017-10-27 | 2018-03-09 | 京东方科技集团股份有限公司 | A kind of OLED display panel and preparation method thereof, display device |
-
2018
- 2018-05-29 CN CN201810531139.7A patent/CN108766983A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9207499B2 (en) * | 2010-08-10 | 2015-12-08 | Samsung Display Co., Ltd. | Display substrate, display device including the same, and method of manufacturing the display substrate comprising first and second column spacers that protrude from a black matrix pattern |
| CN104900681A (en) * | 2015-06-09 | 2015-09-09 | 上海天马有机发光显示技术有限公司 | Organic light-emitting display panel and forming method thereof |
| CN206758472U (en) * | 2016-12-27 | 2017-12-15 | 霸州市云谷电子科技有限公司 | A kind of organic electroluminescence device |
| CN107479260A (en) * | 2017-09-08 | 2017-12-15 | 深圳市华星光电技术有限公司 | COA substrates and preparation method thereof, display panel |
| CN107785402A (en) * | 2017-10-27 | 2018-03-09 | 京东方科技集团股份有限公司 | A kind of OLED display panel and preparation method thereof, display device |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285967B (en) * | 2018-12-11 | 2021-07-06 | 广州国显科技有限公司 | Flexible display panel, preparation method thereof and flexible display device |
| CN109285967A (en) * | 2018-12-11 | 2019-01-29 | 云谷（固安）科技有限公司 | Flexible display panels and preparation method thereof, flexible display apparatus |
| CN109671860A (en) * | 2018-12-13 | 2019-04-23 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN109713023A (en) * | 2019-01-29 | 2019-05-03 | 昆山国显光电有限公司 | The preparation method of display panel, display device and display panel |
| WO2020253396A1 (en) * | 2019-06-21 | 2020-12-24 | 京东方科技集团股份有限公司 | Oled display substrate and manufacturing method therefor, and display device |
| CN113424333A (en) * | 2019-07-30 | 2021-09-21 | 深圳市柔宇科技股份有限公司 | Display panel, display device and manufacturing method of display panel |
| CN112086577A (en) * | 2020-09-08 | 2020-12-15 | 武汉华星光电半导体显示技术有限公司 | Display device and method for manufacturing the same |
| WO2022052216A1 (en) * | 2020-09-08 | 2022-03-17 | 武汉华星光电半导体显示技术有限公司 | Display device and manufacturing method therefor |
| CN112435581A (en) * | 2020-11-30 | 2021-03-02 | 京东方科技集团股份有限公司 | Flexible display structure, flexible display screen and electronic equipment |
| CN112435581B (en) * | 2020-11-30 | 2023-01-13 | 京东方科技集团股份有限公司 | Flexible display structure, flexible display screen and electronic equipment |
| CN113193138A (en) * | 2021-04-12 | 2021-07-30 | Tcl华星光电技术有限公司 | Display panel and manufacturing method thereof |
| CN113764496A (en) * | 2021-09-09 | 2021-12-07 | 京东方科技集团股份有限公司 | Display module and display device |
| CN113764496B (en) * | 2021-09-09 | 2024-05-10 | 京东方科技集团股份有限公司 | Display module and display device |
| CN114430014A (en) * | 2022-01-28 | 2022-05-03 | 京东方科技集团股份有限公司 | Display substrate, preparation method thereof and display device |
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