CN110112309A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN110112309A CN110112309A CN201910355939.2A CN201910355939A CN110112309A CN 110112309 A CN110112309 A CN 110112309A CN 201910355939 A CN201910355939 A CN 201910355939A CN 110112309 A CN110112309 A CN 110112309A
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- layer
- display panel
- inorganic encapsulated
- water absorption
- encapsulated layer
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/846—Passivation; Containers; Encapsulations comprising getter material or desiccants
-
- 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
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present invention provides a kind of display panel and display device.The display panel includes: substrate；Luminescent layer, setting is on the substrate；Encapsulated layer, comprising: the first inorganic encapsulated layer, setting is on the light-emitting layer；Organic encapsulation layer is arranged on the first inorganic encapsulated layer；Second inorganic encapsulated layer is arranged on the first inorganic encapsulated layer and the organic encapsulation layer；An at least water absorption layer is arranged between the first inorganic encapsulated layer and the second inorganic encapsulated layer, and the water absorption layer prevents destruction of the outside moisture to the organic encapsulation layer for absorbing outside moisture.The program can be absorbed outside moisture, prevent outside moisture from improving the yields of display panel to the destruction of organic encapsulation layer by the way that water absorption layer is arranged between two layers of inorganic encapsulated layer.
Description
Technical field
The present invention relates to field of display technology, more particularly to a kind of display panel and display device.
Background technique
With popularizing for intelligent mobile terminal, display panel technology is used widely, and is developed more and more rapider.Its
In, OLED (Organic light-emitting diode, Organic Light Emitting Diode) panel have self-luminous, can be bent etc. it is excellent
Point becomes the display panel technology of mainstream.
As shown in Figure 1, OLED display device includes substrate 11, luminescent layer 12, support column 13 and encapsulated layer 14.Specifically
, encapsulated layer 14 include be arranged on substrate 11, luminescent layer 12 and support column 13 the first inorganic encapsulated layer 141, setting exist
Organic encapsulation layer 142 on first inorganic encapsulated layer, and organic encapsulation layer 142 is set, on the first inorganic encapsulated layer 141
Second inorganic encapsulated layer 143.
Wherein, exist between the first inorganic encapsulated layer 141 and the second inorganic encapsulated layer 143 due to the limitation of processing technology
It is bonded untight situation, causes extraneous water oxygen to easily infiltrate into and causes OLED display device impaired.
Summary of the invention
The purpose of the present invention is to provide a kind of display panel and display devices, and the yields of display panel can be improved.
The embodiment of the invention provides a kind of display panels comprising:
Substrate；
Luminescent layer, setting is on the substrate；
Encapsulated layer, comprising:
First inorganic encapsulated layer, setting is on the light-emitting layer；
Organic encapsulation layer is arranged on the first inorganic encapsulated layer；
Second inorganic encapsulated layer is arranged on the first inorganic encapsulated layer and the organic encapsulation layer；
An at least water absorption layer is arranged between the first inorganic encapsulated layer and the second inorganic encapsulated layer, the suction
Water layer prevents destruction of the outside moisture to the organic encapsulation layer for absorbing outside moisture.
In one embodiment, the composition material of the water absorption layer includes in calcium oxide, sodium hydroxide and phosphorus pentoxide
At least one.
In one embodiment, the display panel includes non-display area and viewing area, and the water absorption layer is arranged described non-
Viewing area, the water absorption layer are arranged in one embodiment around the viewing area, and the water absorption layer includes the first water suction block and the
Two water suction blocks；
The thickness of the first water suction block is greater than the thickness of the second water suction block, wherein the first water suction block is located at
The binding area of the display panel or the quadrangle of the display panel, the second water suction block, which is located in the water absorption layer, removes institute
State other regions outside the first water suction block.
In one embodiment, the thickness of the water absorption layer is less than 90 the percent of the second inorganic encapsulated thickness degree.
The embodiment of the invention also provides a kind of display devices comprising display panel, the display panel include:
Substrate；
Luminescent layer, setting is on the substrate；
Encapsulated layer, comprising:
First inorganic encapsulated layer, setting is on the light-emitting layer；
Organic encapsulation layer is arranged on the first inorganic encapsulated layer；
Second inorganic encapsulated layer is arranged on the first inorganic encapsulated layer and the organic encapsulation layer；
An at least water absorption layer is arranged between the first inorganic encapsulated layer and the second inorganic encapsulated layer, the suction
Water layer prevents destruction of the outside moisture to the organic encapsulation layer for absorbing outside moisture.
In one embodiment, the composition material of the water absorption layer includes in calcium oxide, sodium hydroxide and phosphorus pentoxide
At least one.
In one embodiment, the display panel includes non-display area, and the water absorption layer is arranged in the non-display area.
In one embodiment, the water absorption layer includes the first water suction block and the second water suction block；
The thickness of the first water suction block is greater than the thickness of the second water suction block, wherein the first water suction block is located at
The binding area of the display panel or the quadrangle of the display panel, the second water suction block, which is located in the water absorption layer, removes institute
State other regions outside the first water suction block.
In one embodiment, the thickness of the water absorption layer is less than 90 the percent of the second inorganic encapsulated thickness degree.
The display panel and display device of the embodiment of the present invention, by the first inorganic encapsulated layer and the second inorganic encapsulated layer
Between water absorption layer is set, can destruction to avoid outside moisture to organic encapsulation layer, improve the yields of display panel.
For above content of the invention can be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate institute's accompanying drawings, makees
Detailed description are as follows:
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing display panel.
Fig. 2 is the structural schematic diagram of display panel provided in an embodiment of the present invention.
Fig. 3 is another structural schematic diagram of display panel provided in an embodiment of the present invention.
Fig. 4 is the flow diagram of the production method of display panel provided in an embodiment of the present invention.
Specific embodiment
The explanation of following embodiment is to can be used to the particular implementation of implementation to illustrate the present invention with reference to additional schema
Example.The direction term that the present invention is previously mentioned, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outside", " side "
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the present invention, rather than to
The limitation present invention.
The similar unit of structure is to be given the same reference numerals in the figure.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
Containing at least one embodiment of the present invention.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
The embodiment of the invention provides a kind of display device, which includes display panel.As described in Figure 2, Fig. 2 is
The structural schematic diagram of display panel provided in an embodiment of the present invention.Display panel 2 includes substrate 21, luminescent layer 22, encapsulated layer 23
An and at least water absorption layer 24.
Substrate 21 may include substrate and tft layer.Wherein, tft layer is for controlling the display panel 2
The display of middle picture.Substrate can be by polyimides, polycarbonate, polyether sulfone, polyethylene terephthalate, poly- naphthalene diformazan
The flexible materials such as sour glycol ester, polyarylate composition, to improve the bending performance of display panel 2.
Luminescent layer 22 is arranged on the base plate (21.Luminescent layer 22 may include the anode layer being cascading, organic light emission
Layer and cathode layer etc..Wherein, cathode layer is for providing electronics, and anode layer is for providing hole.The composition material of organic luminous layer
It may include luminous organic material.Under the action of extra electric field, electrons and holes are respectively from cathode layer and anode layer, to being clipped in
Organic luminous layer injection between the two.The compound generation exciton of electrons and holes, exciton migrates under the action of electric field, by energy
The luminescent material in organic luminous layer is passed to, the luminescent material in organic luminous layer is made to shine.
Encapsulated layer 23 is encapsulated using plural layers.As shown in Fig. 2, encapsulated layer 23 include the first inorganic encapsulated layer 231,
Organic encapsulation layer 232 and the second inorganic encapsulated layer 233.
First inorganic encapsulated layer 231 is arranged on luminescent layer 22.The composition material of first inorganic encapsulated layer 231 may include
Silica SiO2, silicon nitride Si3N4Equal materials.
Organic encapsulation layer 232 is arranged on the first inorganic encapsulated layer 231, is located between two layers of inorganic encapsulated layer.Its
In, the composition material of organic encapsulation layer 232 may include polypropylene alcohol ester.Since the composition material of organic encapsulation layer 232 has
Mobility, therefore as shown in Fig. 2, it is additionally provided with barricade 25 in 232 two sides of organic encapsulation layer, to prevent organic encapsulation layer 232 from overflowing.
Specifically, 22 two sides of luminescent layer are arranged in barricade 25, and it is arranged between substrate 21 and the first inorganic encapsulated layer 231.
Second inorganic encapsulated layer 233 is arranged on the first inorganic encapsulated layer 231 and the organic encapsulation layer 232.The
The composition material of two inorganic encapsulated layers 233 may include silica SiO2, silicon nitride Si3N4Equal materials.Second inorganic encapsulated layer
233 and first inorganic encapsulated layer 231 organic encapsulation layer 232 is wrapped jointly, to prevent outside water oxygen to organic encapsulation layer 232
Destruction.However, due to being limited by technique between two layers of inorganic encapsulated layer, can there is fitting defective tightness, have pin hole or
The problem of person grain boundary.
In embodiments of the present invention, it is also provided with an at least water absorption layer 24.The water absorption layer 24 setting is inorganic described first
Between encapsulated layer 231 and the second inorganic encapsulated layer 233.The water absorption layer 24 can be used for absorbing outside moisture, prevent outer
Destruction of boundary's moisture to the organic encapsulation layer 232.
The composition material of water absorption layer 24 may include water suction epoxy resin, active carbon, calcium oxide, sodium hydroxide and five oxygen
Change at least one of two phosphorus.Wherein, the water-absorbent materials such as calcium oxide, sodium hydroxide and phosphorus pentoxide are after absorbing moisture,
Both will not generating body product become larger, will not generate to the hurtful substance of other devices in display panel 2, thus one implement
In example, the composition material of water absorption layer may include at least one of calcium oxide, sodium hydroxide and phosphorus pentoxide.
In one embodiment, as shown in figure 3, display panel 2 includes viewing area 28 and non-display area 29.Water absorption layer 24 is arranged
In the non-display area 29 of display panel 2, it is arranged around the viewing area 28 of display panel 2.It in this way can be to avoid water absorption layer 24 to aobvious
Show that the image of panel 2 is shown to interfere.Wherein viewing area 28 is the region that display panel 2 performs image display, non-display area
29 regions shown for display panel 2 without image.
In one embodiment, the thickness of water absorption layer 24 is less than 90 the percent of 233 thickness of the second inorganic encapsulated layer,
It may insure that water absorption layer 24 is clipped between two layers of inorganic encapsulated layer in this way, and the second inorganic encapsulated layer 233 made to form flat table
Face.
As shown in figure 3, water absorption layer 24 includes the first water suction block 241 and the second water suction block 242.Wherein, first water suction
Block 241 is located at the binding area 26 or the quadrangle 27 of the display panel 2 of the display panel 2, and the second water suction block 242 is located at
Other regions outside the first water suction block 241 are removed in the water absorption layer 24.Binding area 26 and display due to display panel 2
The quadrangle 27 of panel 2 contacts relatively more with external mechanical, it is possible to have more moisture and invade from above-mentioned zone, therefore can
The thickness that the thickness of the first water suction block 241 is greater than the second water suction block 242 is arranged, to absorb more moisture.
The display panel and display device of the embodiment of the present invention, by the first inorganic encapsulated layer and the second inorganic encapsulated layer
Between water absorption layer is set, can destruction to avoid outside moisture to organic encapsulation layer, improve the yields of display panel.
The embodiment of the invention also provides a kind of production methods of display panel.Referring to figure 4., Fig. 4 is that the present invention is implemented
The structural schematic diagram for the display panel that example provides.As shown in figure 4, the production method of the display panel of the embodiment of the present invention includes:
Step S101 provides a substrate.
As shown in Fig. 2, substrate 21 may include substrate and tft layer.Wherein, tft layer is for controlling
The display of picture in display panel 2 processed.Substrate can be by polyimides, polycarbonate, polyether sulfone, polyethylene terephthalate
The flexible materials such as ester, polyethylene naphthalate, polyarylate composition, to improve the bending performance of display panel 2.
Step S102, forms luminescent layer on substrate.
Luminescent layer 22 can be formed on the base plate (21 by the way of vacuum evaporation.Luminescent layer 22 may include successively layer
Anode layer, organic luminous layer and the cathode layer etc. of folded setting.Wherein, cathode layer is for providing electronics, and anode layer is for providing sky
Cave.The composition material of organic luminous layer may include luminous organic material.Under the action of extra electric field, electrons and holes difference
From cathode layer and anode layer, injected to organic luminous layer between the two is clipped in.The compound generation exciton of electrons and holes, exciton exist
It is migrated under the action of electric field, transfers energy to the luminescent material in organic luminous layer, make the luminescent material in organic luminous layer
It shines.
Step S103 forms the first inorganic encapsulated layer on the light-emitting layer.
The composition material of first inorganic encapsulated layer 231 may include silica SiO2, silicon nitride Si3N4Equal materials.
Step S104 forms organic encapsulation layer and an at least water absorption layer, wherein water absorption layer is set on the first inorganic encapsulated layer
It sets in the two sides of organic encapsulation layer.
Organic encapsulation layer 232 is arranged on the first inorganic encapsulated layer 231.The composition material of organic encapsulation layer 232 can
To include polypropylene alcohol ester.Since the composition material of organic encapsulation layer 232 has mobility, as shown in Fig. 2, in organic envelope
Dress 232 two sides of layer are additionally provided with barricade 25, to prevent organic encapsulation layer 232 from overflowing.Specifically, can be inorganic in substrate 21 and first
Barricade 25 is set between encapsulated layer 231, and barricade 25 is made to be located at 22 two sides of luminescent layer.
The composition material of water absorption layer 24 may include water suction epoxy resin, active carbon, calcium oxide, sodium hydroxide and five oxygen
Change at least one of two phosphorus.Wherein, the water-absorbent materials such as calcium oxide, sodium hydroxide and phosphorus pentoxide are after absorbing moisture,
Both will not generating body product become larger, will not generate to the hurtful substance of other devices in display panel 2, thus one implement
In example, the composition material of water absorption layer may include at least one of calcium oxide, sodium hydroxide and phosphorus pentoxide.
In one embodiment, as shown in figure 3, display panel 2 includes viewing area 28 and non-display area 29.Water absorption layer 24 is arranged
In the non-display area 29 of display panel 2, it is arranged around the viewing area 28 of display panel 2.Wherein viewing area 28 be display panel 2 into
The region that row image is shown, non-display area 29 are the region that display panel 2 is shown without image.It in this way can be to avoid water absorption layer
The image of 24 pairs of display panels 2, which is shown, to be interfered.
In one embodiment, the thickness of water absorption layer 24 is less than 90 the percent of 233 thickness of the second inorganic encapsulated layer,
It may insure that water absorption layer 24 is clipped between two layers of inorganic encapsulated layer in this way, and the second inorganic encapsulated layer 233 made to form flat table
Face.In one embodiment, groove can also be formed on the first inorganic encapsulated layer 231, water absorption layer 24 is arranged in groove, and
Part protrudes from groove.
As shown in figure 3, water absorption layer 24 includes the first water suction block 241 and the second water suction block 242.Wherein, first water suction
Block 241 is located at the binding area 26 or the quadrangle 27 of the display panel 2 of the display panel 2, and the second water suction block 242 is institute
State other regions removed outside the first water suction block 241 in water absorption layer 24.Due to the binding area 26 of display panel 2 and display surface
The quadrangle 27 of plate 2 contacts relatively more with external mechanical, it is possible to have more moisture and invade from above-mentioned zone, therefore can be with
The thickness that the first water suction block 241 is arranged is greater than the thickness of the second water suction block 242, to absorb more moisture.
Step S105 forms the second inorganic encapsulated layer on the first inorganic encapsulated layer, organic encapsulation layer and water absorption layer.
The setting of second inorganic encapsulated layer 233 is in the first inorganic encapsulated layer 231, the organic encapsulation layer 232 and inhales
On water layer 24.The composition material of second inorganic encapsulated layer 233 may include silica SiO2, silicon nitride Si3N4Equal materials.The
Two inorganic encapsulated layers 233 and the first inorganic encapsulated layer 231 jointly wrap organic encapsulation layer 232, to prevent outside water oxygen pair
The destruction of organic encapsulation layer 232.Again due to being limited by technique between two layers of inorganic encapsulated layer, there can be fitting defective tightness,
There is the problem of pin hole or grain boundary, then water absorption layer 24 can be with assist absorption outside moisture.
Wherein, the first inorganic encapsulated layer 231, organic encapsulation layer 232 and the second inorganic encapsulated layer 233 have collectively constituted envelope
Fill layer 23.
The production method of the display panel of the embodiment of the present invention, by the first inorganic encapsulated layer and the second inorganic encapsulated layer
Between water absorption layer is set, can destruction to avoid outside moisture to organic encapsulation layer, improve the yields of display panel.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention subjects to the scope of the claims.
Claims (10)
1. a kind of display panel characterized by comprising
Substrate；
Luminescent layer, setting is on the substrate；
Encapsulated layer, comprising:
First inorganic encapsulated layer, setting is on the light-emitting layer；
Organic encapsulation layer is arranged on the first inorganic encapsulated layer；
Second inorganic encapsulated layer is arranged on the first inorganic encapsulated layer and the organic encapsulation layer；
An at least water absorption layer is arranged between the first inorganic encapsulated layer and the second inorganic encapsulated layer, the water absorption layer
For absorbing outside moisture, destruction of the outside moisture to the organic encapsulation layer is prevented.
2. display panel according to claim 1, which is characterized in that the composition material of the water absorption layer include calcium oxide,
At least one of sodium hydroxide and phosphorus pentoxide.
3. display panel according to claim 1, which is characterized in that the display panel includes non-display area, the suction
Water layer is arranged in the non-display area.
4. display panel according to claim 1 to 3, which is characterized in that the water absorption layer includes the first water suction
Block and the second water suction block；
The thickness of the first water suction block is greater than the thickness of the second water suction block, wherein the first water suction block is located at described
The binding area of display panel or the quadrangle of the display panel, the second water suction block, which is located in the water absorption layer, removes described the
Other regions outside one water suction block.
5. display panel according to claim 1, which is characterized in that it is inorganic that the thickness of the water absorption layer is less than described second
90 the percent of encapsulated layer thickness.
6. a kind of display device, which is characterized in that including display panel, the display panel includes:
Substrate；
Luminescent layer, setting is on the substrate；
Encapsulated layer, comprising:
First inorganic encapsulated layer, setting is on the light-emitting layer；
Organic encapsulation layer is arranged on the first inorganic encapsulated layer；
Second inorganic encapsulated layer is arranged on the first inorganic encapsulated layer and the organic encapsulation layer；
An at least water absorption layer is arranged between the first inorganic encapsulated layer and the second inorganic encapsulated layer, the water absorption layer
For absorbing outside moisture, destruction of the outside moisture to the organic encapsulation layer is prevented.
7. display device according to claim 6, which is characterized in that the composition material of the water absorption layer include calcium oxide,
At least one of sodium hydroxide and phosphorus pentoxide.
8. display device according to claim 6, which is characterized in that the display panel includes non-display area and display
Area, in the non-display area, the water absorption layer is arranged around the viewing area for the water absorption layer setting.
9. according to display device described in claim 6-8 any one, which is characterized in that the water absorption layer includes the first water suction
Block and the second water suction block；
The thickness of the first water suction block is greater than the thickness of the second water suction block, wherein the first water suction block is located at described
The binding area of display panel or the quadrangle of the display panel, the second water suction block, which is located in the water absorption layer, removes described the
Other regions outside one water suction block.
10. display device according to claim 6, which is characterized in that the thickness of the water absorption layer is less than second nothing
90 the percent of machine encapsulated layer thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355939.2A CN110112309A (en) | 2019-04-29 | 2019-04-29 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355939.2A CN110112309A (en) | 2019-04-29 | 2019-04-29 | Display panel and display device |
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| Publication Number | Publication Date |
|---|---|
| CN110112309A true CN110112309A (en) | 2019-08-09 |
Family
ID=67487549
Family Applications (1)
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| CN201910355939.2A Pending CN110112309A (en) | 2019-04-29 | 2019-04-29 | Display panel and display device |
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| WO2023108730A1 (en) * | 2021-12-17 | 2023-06-22 | 深圳市华星光电半导体显示技术有限公司 | Oled display panel and electronic device |
| WO2023197346A1 (en) * | 2022-04-11 | 2023-10-19 | 深圳市华星光电半导体显示技术有限公司 | Display panel and preparation method for display apparatus |
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Application publication date: 20190809 |