CN208862029U - Display panel and display device equipped with it - Google Patents
Display panel and display device equipped with it Download PDFInfo
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- CN208862029U CN208862029U CN201821233366.3U CN201821233366U CN208862029U CN 208862029 U CN208862029 U CN 208862029U CN 201821233366 U CN201821233366 U CN 201821233366U CN 208862029 U CN208862029 U CN 208862029U
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Abstract
The utility model relates to a kind of display panel and equipped with its display device, display panel includes: display base plate；Thin-film packing structure encapsulates display base plate side, and thin-film packing structure includes package main body and buffer cell, and buffer cell is set in package main body；Wherein, on the stacking direction of display base plate and thin-film packing structure, the elasticity modulus of buffer cell is less than the elasticity modulus of package main body.Above-mentioned display panel, when external force in thin-film packing structure far from one side surface of display base plate when, since the elasticity modulus of buffer cell is less than the elasticity modulus of package main body, therefore buffer cell can produce bigger deformation under external force to absorb more external force, to effectively reduce the display base plate being disposed below, the especially external force that is subject to of support column, avoids the cathode layer on support column from separating with luminescent layer.
Description
Technical field
The utility model relates to field of display devices, more particularly to a kind of display panel and equipped with its display device.
Background technique
In recent years, with the development of society and the progress of science and technology, the technology development of intelligent terminal and wearable device
Make rapid progress, the requirement for FPD is also gradually increased, and demand is also more and more diversified.OLED(Organic Light-
Emitting Diode, Organic Light Emitting Diode) display device due to compared with liquid crystal display have more low-power consumption, have simultaneously
Have higher brightness and a response speed, and it is flexible, there is good flexibility, therefore be applied to hand more and more widely
In the smart terminal products such as machine, tablet computer even TV, become the main flow display of display field.
But it is preferably flexible simultaneously as material and structure limitation, the shock resistance of OLED display device having
Weaker, when there is weight to hit OLED display device, the region hit, which is easy to appear, shows bad situation, thus serious shadow
The service life and stability in use of OLED display device are rung.
Utility model content
Based on this, it is necessary to which for the weaker problem of OLED display device impact resistance, providing a kind of improves above-mentioned ask
The display panel of topic and display device equipped with it.
A kind of display panel, the display panel include:
Display base plate；
Thin-film packing structure, encapsulates the display base plate side, and the thin-film packing structure includes package main body and buffering
Unit, the buffer cell are set in the package main body；
Wherein, on the stacking direction of the display base plate and the thin-film packing structure, the elasticity of the buffer cell
Modulus is less than the elasticity modulus of the package main body.
Above-mentioned display panel, when external force in thin-film packing structure far from one side surface of display base plate when, due to buffering
The elasticity modulus of unit is less than the elasticity modulus of package main body, therefore buffer cell can produce bigger deformation under external force
To absorb more external force, to effectively reduce the display base plate being disposed below, the especially external force that is subject to of support column is kept away
The cathode layer exempted from support column is separated with luminescent layer.
The buffer cell is multiple in one of the embodiments, and multiple buffer cells are arranged at intervals at described
In package main body, the display base plate includes output optical zone domain and non-outgoing area, and the buffer cell is on the display base plate
Orthographic projection be located in the non-outgoing area.
The display base plate includes the multiple support columns for being spaced projection, multiple supports in one of the embodiments,
Column is respectively positioned on the non-outgoing area, and each support column is in the stacking side of the display base plate and the thin-film packing structure
At least one described buffer cell is corresponded respectively to upwards；
Or multiple support columns are jointly corresponding on the stacking direction of the thin-film packing structure in the display base plate
One buffer cell.
Offer at least one cushion chamber in the buffer cell in one of the embodiments, described at least one is slow
The outer surface for rushing chamber and the buffer cell is mutually isolated.
Layer of each cushion chamber in the display base plate and the thin-film packing structure in one of the embodiments,
Size on folded direction is greater than its size on the stacking direction perpendicular to the display base plate and the thin-film packing structure.
The buffer cell includes at least one set of buffering group in one of the embodiments, is wrapped in buffering group described in every group
The cushion chamber is included, each cushion chamber is laterally away from from the buffer cell close to the display base plate one described aobvious
Show that substrate side extends.
The buffer cell includes at least one set of buffering group in one of the embodiments, is wrapped in buffering group described in every group
Multiple cushion chambers are included, multiple cushion chambers are laterally away from from the buffer cell close to the display base plate one described aobvious
Show substrate side intermittent arrangement.
The buffer cell further includes auxiliary bolster in one of the embodiments, and the auxiliary bolster is filled in
In the cushion chamber, on the stacking direction of the display base plate and the thin-film packing structure, the bullet of the auxiliary bolster
Property modulus be less than the buffer cell main body elasticity modulus.
In one of the embodiments, the thin-film packing structure include the first inorganic layer being stacked, organic layer and
Second inorganic layer, first inorganic layer cover the display base plate, the organic layer be located at first inorganic layer with it is described
Between second inorganic layer；
The buffer cell is located in the organic layer, and the elasticity modulus of the buffer cell is less than the bullet of the organic layer
Property modulus.
A kind of display device, including above-mentioned display panel.
Buffering is arranged in display panel provided by the utility model and display device in the thin-film packing structure of display panel
Unit effectively increases the mechanical property of the display panel, have stronger impact resistance, thus reduce weight fall in it is aobvious
Show a possibility that panel surface causes display base plate to damage, improves the reliability of the display device equipped with the display panel.
Detailed description of the invention
Fig. 1 is the schematic diagram of the display panel of an embodiment；
Fig. 2 is the schematic diagram of the buffer cell of display panel shown in FIG. 1；
Fig. 3 is the sectional view along A-A of buffer cell shown in Fig. 2；
Fig. 4 is the sectional view along A-A of the buffer cell shown in Fig. 2 of another embodiment.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms in fact
It is existing, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes public affairs to the utility model
The understanding for opening content is more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
As shown in Figure 1, a kind of display panel 100 of this preferred embodiment, including display base plate 20 and thin-film packing structure
40.Wherein, display base plate 20 is organic electroluminescent display substrate, and thin-film packing structure 40 encapsulates 20 side of display base plate, with
Sealing and protective effect are played to display base plate 20.
Display base plate 20 includes substrate, tft layer and organic electro luminescent layer, and organic electro luminescent layer includes
Anode layer, pixel confining layer, luminescent layer and cathode layer.
Wherein, substrate has multiple pixel regions, and each pixel region includes the first sub-pixel area domain, the second sub-pixel area
Domain and third subpixel area.In one embodiment, the first sub-pixel area domain is the subpixel area for emitting feux rouges, the second son
Pixel region is the subpixel area for emitting green light, and third subpixel area is to emit the subpixel area of blue light.
Tft layer is set on substrate and shines for controlling pixel region, and tft layer includes that multiple films are brilliant
Body pipe.Each thin film transistor (TFT) include the gate electrode being formed on substrate, cover on gate electrode gate insulating layer, be formed in
Active layer on gate insulating layer and the source electrode and drain electrode being formed on active layer.It should be noted that above-mentioned film
Transistor is by taking bottom gate type as an example, but the utility model is without being limited thereto, and thin film transistor (TFT) can also be top gate type.
Since tft layer has the layer structure of above-mentioned complexity, top surface may be uneven, therefore planarization layer
Covering tft layer forms sufficiently flat surface far from substrate side.After forming planarization layer, planarizing
Through-hole is offered in layer, with the source electrode or drain electrode of exposed film transistor.
Anode layer is formed on planarization layer, including the first pixel electrode, the second pixel electrode and third sub- picture
Plain electrode, wherein the first pixel electrode is formed in the first sub-pixel area domain, and the second pixel electrode is formed in the second sub-pixel
Region, third pixel electrode are formed in third subpixel area.First pixel electrode, the second pixel electrode or third
Pixel electrode can be electrically connected to tft layer by the through-hole of planarization layer.
Pixel confining layer is covered on anode layer, and offers the opening corresponding to each sub-pixel to expose sub-pixel
Central part, to form the output optical zone domain of multiple exposed sub-pixels and the non-outgoing area of multiple covering sub-pixels.Pixel limit
Multiple support columns 21 are convexly equipped in given layer, and multiple support columns 21 are respectively positioned in non-outgoing area to play guiding material deposition
Effect, and it is used to support the cover board for being covered in display base plate 20.
Luminescent layer is formed by being deposited in the luminous organic material in pixel confining layer, and luminescent layer covers the first pixel electrode
Not by the part of pixel confining layer covering, the second pixel electrode not by the part of pixel confining layer covering, third sub-pixel electricity
The upper surface of part and pixel confining layer that pole is not covered by pixel confining layer.
Cathode layer be covered in the first sub-pixel area domain, the second subpixel area and third subpixel area luminescent layer,
The surface of pixel confining layer and support column 21 far from pixel confining layer side.
In this way, electronics and hole are infused from cathode layer and anode layer to luminescent layer respectively under the driving of tft layer
Enter, meet compound generation exciton in luminescent layer for injected electrons and hole.By the above-mentioned compound generation exciton that meets, exciton will
Energy transmission is activated to luminescent organic molecule, luminescent organic molecule energy, and electronic state turns from stable state (ground state)
To the state (excitation state) of high-energy, and then because of excitation state and its unstable and original ground state can be returned to, energy at this time
It is released and shows as the form of " light ".
Inventor has found under study for action, due in display base plate 20,21 projection of support column for pixel confining layer surface and
With certain altitude, when weight hits display panel 100, support column 21 more first receives impact and the impact force being subject to is bigger,
Therefore support column 21 is to be easier in display base plate 20 by the position destroyed, and then be easy to cause and be covered on support column 21
Cathode layer separates with structures such as luminescent layers and causes the display failure of display base plate 20.Therefore, inventors have found that how to improve display
The mechanics reliability of panel 100 is one of the allowed important technical challenges of the current field face, to propose a kind of equipped with film
The display panel 100 of encapsulating structure 40.
As shown in Figure 1, thin-film packing structure 40 encapsulates 20 side of display base plate, including package main body 41 and buffer cell
43.Buffer cell 43 is set in package main body 41, stacking of the buffer cell 43 in display base plate 20 and thin-film packing structure 40
Elasticity modulus on direction (i.e. vertical direction in Fig. 1) is less than package main body 41 in display base plate 20 and thin-film packing structure 40
Stacking direction on elasticity modulus.In this way, working as external force in thin-film packing structure 40 far from 20 1 side surface of display base plate
When, since the elasticity modulus of buffer cell 43 in the vertical direction is less than the elasticity modulus of package main body 41 in the vertical direction,
Therefore buffer cell 43 can generate bigger deformation to absorb more external force, to have in the vertical direction under external force
Effect reduces the external force that the display base plate 20 being disposed below, especially support column 21 are subject to, and avoids the cathode on support column 21
Layer separation.
The above-mentioned elasticity modulus referred to refers to that material generates stress required for unit elasticity deforms under external force,
It is the scale measured object and resist elastic deformability's size.Elastic mould value is bigger, and under certain stress, material occurs
Flexible deformation is then smaller.Since the elasticity modulus of buffer cell 43 in the vertical direction is less than package main body 41 in the vertical direction
Elasticity modulus, therefore under certain stress, the flexible deformation that buffer cell 43 occurs in the vertical direction is greater than encapsulation
The elastic deformation of main body 41 in the vertical direction, therefore more external force are can absorb, play good buffer function.
Specifically in some embodiments, thin-film packing structure 40 includes multilayer encapsulation film layer, specifically includes layer from the bottom to top
The first inorganic layer 412, organic layer 414 and the second inorganic layer 416 of folded setting, the first inorganic layer 412 cover display base plate 20,
Between the first inorganic layer 412 and the second inorganic layer 416, buffer cell 43 is set in organic layer 414 organic layer 414.It can be with
Understand, the specific configuration of thin-film packing structure 40 is without being limited thereto, may include one layer, two or more layers encapsulation film layer.Buffer cell
43 are also not necessarily limited to be only arranged in organic layer 414, may be alternatively located at according to the difference of the specific configuration of thin-film packing structure 40 thin
In the different encapsulation film layers of film encapsulating structure 40.
Specifically in some embodiments, the first inorganic layer 412 and the second inorganic layer 416 are by silicon nitride (SiNX), silica
(SiOX) or silicon oxynitride (SiOXN) pass through the method shape of chemical vapor deposition (CVD, Chemical Vapor Deposition)
At organic layer 414 is formed in first using the mode of inkjet printing (IJP, Ink-Jet Printing) by propenyl polymer
On inorganic layer 412.In this way, the first inorganic layer 412 and the second inorganic layer 416 have good resistance to water oxygen performance, to avoid water oxygen
Invade display base plate 20.Organic layer 414 then has certain cushion performance, and damage can be avoided to show base to a certain extent
Plate 20.
Above-mentioned chemical vapor deposition refers to the steam containing the gaseous reactant or liquid reactants for constituting film element
And other gases needed for reaction introduce reaction chamber, and the process that chemical reaction generates film occurs in substrate surface, has deposit temperature
Spend low, thin film composition and thickness are easily-controllable, and film thickness is directly proportional to deposition time, uniformity with it is reproducible, Step Coverage is good,
The advantages that easy to operate.
Please continue to refer to Fig. 1, buffer cell 43 be it is multiple, multiple buffer cells 43 are arranged at intervals in organic layer 414, and
Buffer cell 43 is located in non-outgoing area in the orthographic projection on display base plate 20, to avoid stopping output optical zone domain and influencing to show
Show the light-out effect of substrate 20.
Further in some embodiments, stacking of each support column 21 in display base plate 20 and thin-film packing structure 40
It corresponds respectively at least one buffer cell 43 on direction, is i.e. can be correspondingly provided on support column 21 one or more slow
Rush unit 43.And in another embodiment, stacking direction of multiple support columns 21 in display base plate 20 and thin-film packing structure 40
A upper jointly corresponding buffer cell 43, i.e. the lower of buffer cell 43 can be correspondingly provided with multiple support columns 21.In this way, slow
It rushes unit 43 to can absorb part external force and effectively reduce the external force acted on support column 21, to avoid the yin on support column 21
Pole generates film layer fold or separation, and then display panel 100 is avoided the situations such as display failure occur.
Further in some embodiments, buffer cell 43 is cylindrical (as shown in Figure 2), in display base plate 20 and film
The size of cross section on 40 stacking direction of encapsulating structure is equal everywhere, and the upper surface so as to uniform pickup and support column 21 is each
The external force of a position corresponding region, therefore support column 21 is played a good cushioning role everywhere.It is appreciated that buffering
The concrete shape of unit 43 is without being limited thereto, and buffer cell 43 can also be ellipsoid, spherical shape, round table-like, coniform, cuboid etc.
Shape.
As shown in Figures 1 and 3, in some embodiments, at least one cushion chamber 432 is offered in buffer cell 43, until
The outer surface of few a cushion chamber 432 and buffer cell 43 is mutually isolated.That is, cushion chamber 432 and buffer cell 43
Outer surface is not connected to, so that it is slow to avoid the organic material for being used to form organic layer 414 from entering during forming organic layer 414
It rushes in chamber 432, influences the buffering effect of buffer cell 43.
Further in some embodiments, stacking of each cushion chamber 432 in display base plate 20 and thin-film packing structure 40
Size on direction is greater than its size on the stacking direction perpendicular to display base plate 20 and thin-film packing structure 40.In this way,
What buffer cell 43 was subject to, which is parallel to display base plate 20 and the pressure on 40 stacking direction of thin-film packing structure, can pass through cushion chamber
432 carry out lateral release, further reduce the pressure being parallel on display base plate 20 and 40 stacking direction of thin-film packing structure
To display base plate 20, the especially influence of support column 21.
Specifically in some embodiments, as shown in Figures 1 and 3, buffer cell 43 includes at least one set of buffering group, and every group slow
Rushing includes a cushion chamber 432 in group, and each cushion chamber 432 is laterally away from display close to display base plate 20 from buffer cell 43
20 side of substrate extends, to form multiple strip empty slots being parallel to each other in buffer cell 43, and the length of empty slot is omited
Less than height (i.e. ruler of the buffer cell 43 on display base plate 20 and 40 stacking direction of thin-film packing structure of buffer cell 43
It is very little).
It in further embodiments, include multiple cushion chambers 432, Duo Gehuan in every group of buffering group as shown in Fig. 1 and Fig. 4
It rushes chamber 432 and is laterally away from 20 side intermittent arrangement of display base plate close to display base plate 20 from buffer cell 43, thus buffering
Multiple groups strip empty slot is formed in unit 43, every group of strip empty slot is in the stacking side of display base plate 20 and thin-film packing structure 40
It upwards include multiple spaced strip empty slots, the length of every group of empty slot is slightly less than the height of buffer cell 43.
It is appreciated that the shape of cushion chamber 432 is without being limited thereto, the strip that the shape of cushion chamber 432 can be different for size
Shape can also be also possible to one or more for shapes, the quantity of cushion chamber 432 such as elliposoidal, spheroidals, a buffer cell
The cushion chamber 432 of multiple and different shapes can be formed in 43.
In one embodiment, buffer cell 43 further includes auxiliary bolster (not shown), and auxiliary bolster is filled in buffering
In chamber 432, the elasticity modulus of bolster is assisted to be less than the elasticity modulus of 43 main body of buffer cell, so that it is single to be further conducive to buffering
The lateral release for the pressure that member 43 is subject to, and can play a supporting role to buffer cell 43, extend buffer cell 43 uses the longevity
Life.
Above-mentioned display panel 100, the buffer cell 43 being arranged in thin-film packing structure 40 can play buffer function, to avoid
The support column 21 of display base plate 20 makes cathode that separation occur due to by external force and display is caused to be failed.Simultaneously as slow
Rush in the organic layer 414 that unit 43 is fully located in thin-film packing structure 40 and and have not been changed the whole knot of thin-film packing structure 40
The material property of structure and organic layer 414, therefore will not influence organic layer 414 and the first inorganic layer 412, the second inorganic layer 416
Combination degree.
Based on above-mentioned display panel 100, the embodiment of the present invention also provides a kind of display device, in some embodiments,
The display device can be display terminal, such as tablet computer, and in further embodiments, which also can be mobile communication
Terminal, such as mobile phone terminal.
In some embodiments, which includes display panel 100 and control unit, which is used for aobvious
Show 100 transmitting display signal therefor of panel.
In conclusion the display panel 100 and display device that are provided in the embodiment of the present invention, in the thin of display panel 100
Buffer cell 43 is set in film encapsulating structure 40, effectively increases the mechanical property of the display panel 100, there is stronger anti-impact
Ability is hit, so that reducing weight falls in a possibility that 100 surface of display panel causes display base plate 20 to damage, improves and is equipped with
The reliability of the display device of the display panel 100.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of display panel, which is characterized in that the display panel includes:
Display base plate；
Thin-film packing structure, encapsulates the display base plate side, and the thin-film packing structure includes package main body and buffer cell,
The buffer cell is set in the package main body；
Wherein, on the stacking direction of the display base plate and the thin-film packing structure, the elasticity modulus of the buffer cell
Less than the elasticity modulus of the package main body.
2. display panel according to claim 1, which is characterized in that the buffer cell is multiple, multiple bufferings
Unit interval is set in the package main body, and the display base plate includes output optical zone domain and non-outgoing area, and the buffering is single
Member is located in the non-outgoing area in the orthographic projection on the display base plate.
3. display panel according to claim 2, which is characterized in that the display base plate includes multiple for being spaced projection
Dagger, multiple support columns are respectively positioned on the non-outgoing area, each support column the display base plate with it is described thin
At least one described buffer cell is corresponded respectively on the stacking direction of film encapsulating structure；
Or multiple support columns are in the display base plate and corresponding one jointly on the stacking direction of the thin-film packing structure
The buffer cell.
4. display panel according to claim 1, which is characterized in that offer at least one buffering in the buffer cell
The outer surface of chamber, at least one described cushion chamber and the buffer cell is mutually isolated.
5. display panel according to claim 4, which is characterized in that each cushion chamber is in the display base plate and institute
It states the size on the stacking direction of thin-film packing structure and is greater than it perpendicular to the display base plate and the thin-film packing structure
Stacking direction on size.
6. display panel according to claim 4 or 5, which is characterized in that the buffer cell includes at least one set of buffering
Group includes a cushion chamber in buffering group described in every group, and each cushion chamber is from the buffer cell close to described aobvious
Show that substrate one is laterally away from the display base plate side and extends.
7. display panel according to claim 4 or 5, which is characterized in that the buffer cell includes at least one set of buffering
Group includes multiple cushion chambers in buffering group described in every group, and multiple cushion chambers are from the buffer cell close to described aobvious
Show that substrate one is laterally away from display base plate side intermittent arrangement.
8. display panel according to claim 4, which is characterized in that the buffer cell further includes auxiliary bolster, institute
Auxiliary bolster is stated to be filled in the cushion chamber, on the stacking direction of the display base plate and the thin-film packing structure,
The elasticity modulus of the auxiliary bolster is less than the elasticity modulus of the buffer cell main body.
9. display panel according to claim 1, which is characterized in that the thin-film packing structure includes be stacked
One inorganic layer, organic layer and the second inorganic layer, first inorganic layer cover the display base plate, and the organic layer is located at described
Between first inorganic layer and second inorganic layer；
The buffer cell is located in the organic layer, and the elasticity modulus of the buffer cell is less than the springform of the organic layer
Amount.
10. a kind of display device, which is characterized in that including display panel as described in any one of claims 1-9.
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| CN201821233366.3U CN208862029U (en) | 2018-08-01 | 2018-08-01 | Display panel and display device equipped with it |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821233366.3U CN208862029U (en) | 2018-08-01 | 2018-08-01 | Display panel and display device equipped with it |
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| CN208862029U true CN208862029U (en) | 2019-05-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111017864A (en) * | 2019-09-27 | 2020-04-17 | 株洲国创轨道科技有限公司 | MEMS packaging part based on 3D printing and packaging method |
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2018
- 2018-08-01 CN CN201821233366.3U patent/CN208862029U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111017864A (en) * | 2019-09-27 | 2020-04-17 | 株洲国创轨道科技有限公司 | MEMS packaging part based on 3D printing and packaging method |
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