CN110197877A - A kind of AMOLED display panel - Google Patents
A kind of AMOLED display panel Download PDFInfo
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- CN110197877A CN110197877A CN201810159439.7A CN201810159439A CN110197877A CN 110197877 A CN110197877 A CN 110197877A CN 201810159439 A CN201810159439 A CN 201810159439A CN 110197877 A CN110197877 A CN 110197877A
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- layer
- display panel
- organic
- amoled display
- tfe
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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
- H10K50/844—Encapsulations
- H10K50/8445—Encapsulations multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
-
- 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
Abstract
The present invention relates to field of display technology, disclose a kind of AMOLED display panel, the display panel is provided with anode layer, organic luminous layer, cathode layer, coating and encapsulated layer TFE along bottom to top layer direction, it further include set on the buffer layer between TFE and organic luminous layer, the material for preparing of buffer layer includes water-absorbent material.In above-mentioned AMOLED display panel; including being provided with anode layer, organic luminous layer, cathode layer, coating and encapsulated layer TFE along bottom to top layer direction; it further include set on the buffer layer between TFE and organic luminous layer; when steam is permeated through TFE to organic luminous layer; since buffer layer is set between TFE and organic luminous layer and the material for preparing of the buffer layer includes water-absorbent material, then the absorbable steam for reaching buffer layer of buffer layer forms the second protection to organic luminous layer.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of AMOLED display panel.
Background technique
Compared with LCD display, active matrix organic light-emitting diode (Active-matrix organic light
Emitting diode, abbreviation AMOLED) display has many advantages, such as flexible, low energy consumption, ultra-thin and healthy eyeshield,
Be known as by industry be next-generation FPD mainstream technology, the flexibility for being based especially on the AMOLED of thin film encapsulation processes is aobvious
Show technology, has become the trend of next-generation flat panel display development.
The structure of flexible AMOLED device traditional at present is " 1/ organic luminous layer of anode layer, 2/ cathode layer, 3/ coating 4/
The sandwich type sandwich (as shown in Figure 1) that encapsulated layer TFE5 " is formed, wherein organic luminous layer 2, cathode layer 3 and coating
4 mainly by the method preparation of vapor deposition, and TFE5 is mainly the vapour deposition process (Plasma by plasma enhanced chemical
Enhanced Chemical Vapor Deposition, abbreviation PECVD) equipment preparation, and the major function of TFE5 is resistance
Water proof vapour prevents steam invasion from leading to the failure of AMOLED luminescent device.
But there are many urgent problems for this structure: since TFE5 is that inorganic film 51 and organic film 52 are handed over
The laminated construction of mistake accumulation, obstructs the ability of steam mainly by inorganic film 51, organic film 52 only serves stress-buffer layer
Effect, and inorganic film 51 easily leads to the invasion of steam due to the excessive easy cracking of stress, once the cracking of inorganic layer occurs,
The failure of luminous organic material will be directly resulted in.
Summary of the invention
The present invention provides a kind of AMOLED display panel, above-mentioned AMOLED display panel increases additional buffer layer,
Conducive to organic luminous layer is protected after TFE is broken, the second protection to organic luminous layer is formed.
In order to achieve the above objectives, the present invention the following technical schemes are provided:
A kind of AMOLED display panel is provided with anode layer along bottom to top layer direction, organic luminous layer, cathode layer, covers
Cap rock and encapsulated layer TFE further include the buffer layer being set between the TFE and the organic luminous layer, the buffer layer
Preparing material includes water-absorbent material.
In above-mentioned AMOLED display panel, including bottom to top layer direction is provided with anode layer, organic luminous layer, cathode
Layer, coating and encapsulated layer TFE, further include set on the buffer layer between TFE and organic luminous layer, when steam through TFE to
Organic luminous layer permeate when, due to buffer layer be set between TFE and organic luminous layer and the buffer layer prepare material include inhale
Water material, then buffer layer can absorb the steam for reaching buffer layer, to form the second protection to organic luminous layer.
AMOLED display panel provided by the invention forms the dual guarantor to organic luminous layer using TFE and buffer layer
Shield, can extend the service life of organic luminous layer, to extend the service life of entire AMOLED display panel.
Therefore, above-mentioned AMOLED display panel increases additional buffer layer, organic conducive to protecting after TFE is broken
Luminescent layer forms the second protection to organic luminous layer.
Preferably, the buffering is placed between the organic luminous layer and the cathode layer；Alternatively,
The buffering is placed between the cathode layer and the coating；Alternatively,
The buffering is placed between the coating and the TFE.
Preferably, the buffer layer is by the organic high molecular compound material of tool water sorption and with water sorption
The single layer structure prepared after inorganic material mixing.
Preferably, the buffer layer includes the organic layer formed by organic high molecular compound material and by inorganic material shape
At inorganic layer, and be stacked along organic layer and the inorganic layer described in the bottom to top layer direction.
Preferably, the organic high molecular compound material is the organic compound with water sorption group, the nothing
Machine material is the inorganic salts with water sorption.
Preferably, the material for preparing of the buffer layer further includes the material for having both water sorption and stopping plasma effect.
Preferably, the material for having both water sorption and stopping plasma effect includes lithium fluoride, lithium chloride, bromination
One or more of lithium, calcium chloride, calcirm-fluoride and magnesium chloride.
Preferably, the TFE includes that at least one is folded by organic film and inorganic film along the bottom to top layer direction
Set the stacked structure to be formed.
Preferably, the TFE includes two layers of inorganic film and one layer of organic film, and the organic film is placed in two layers of institute
It states between inorganic film.
Preferably, the side of the organic film is provided with the inorganic film.
Detailed description of the invention
Fig. 1 is AMOLED display panel structure figure in the prior art；
Fig. 2 is a kind of structure chart of AMOLED display panel provided in an embodiment of the present invention；
Fig. 3 is another structure chart of AMOLED display panel provided in an embodiment of the present invention；
Fig. 4 is another structure chart of AMOLED display panel provided in an embodiment of the present invention；
Fig. 5 is another structure chart of AMOLED display panel provided in an embodiment of the present invention.
Icon: 1- anode layer；2- organic luminous layer；3- cathode layer；4- coating；5-TFE；51- inorganic film；52- has
Machine film layer；6- buffer layer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to FIG. 2, the present invention provides a kind of AMOLED display panel, along bottom to top layer direction be provided with anode layer 1,
Organic luminous layer 2, cathode layer 3, coating 4 and encapsulated layer TFE5 further include set on slow between TFE5 and organic luminous layer 2
Layer 6 is rushed, the material for preparing of buffer layer 6 includes water-absorbent material.
In above-mentioned AMOLED display panel, including along bottom to top layer direction be provided with anode layer 1, organic luminous layer 2, yin
Pole layer 3, coating 4 and encapsulated layer TFE5 further include set on the buffer layer 6 between TFE5 and organic luminous layer 2, when steam is saturating
When crossing TFE5 and being permeated to organic luminous layer 2, since buffer layer 6 is set between TFE5 and organic luminous layer 2 and the buffer layer 6
Preparing material includes water-absorbent material, then the absorbable steam for reaching buffer layer 6 of buffer layer 6, to be formed to organic luminous layer 2
Second protection.
AMOLED display panel provided by the invention is formd using TFE5 and buffer layer 6 to the dual of organic luminous layer 2
Protection, can extend the service life of organic luminous layer 2, to extend the service life of entire AMOLED display panel.
Therefore, above-mentioned AMOLED display panel increases additional buffer layer 6, has conducive to protecting after TFE5 is broken
Machine luminescent layer 2 forms the second protection to organic luminous layer 2.
Based on the above technical solution, it should be noted that buffer layer 6 is between organic luminous layer 2 and TFE5
There are a variety of possibility for specific location, specific to be at least one of following several structures:
Structure one: with continued reference to FIG. 2, buffer layer 6 is placed between organic luminous layer 2 and cathode layer 3.
Structure two: referring to FIG. 3, buffer layer 6 is placed between cathode layer 3 and coating 4.
Structure three: referring to FIG. 4, buffer layer 6 is placed between coating 4 and TFE5.
Based on the above technical solution, it should be noted that there are diversified forms for the structure formation of buffer layer 6, until
It is less one of following several forms:
Form one: buffer layer 6 is by the organic high molecular compound material of tool water sorption and with the nothing of water sorption
The single layer structure prepared after the mixing of machine material.
Form two: buffer layer 6 includes the organic layer formed by organic high molecular compound material and is formed by inorganic material
Inorganic layer, and be stacked along bottom to top layer direction organic layer and inorganic layer.
It should be noted that the nothing that organic high molecular compound is formed in stacked structure organic layer and inorganic material are formed
The specific number of machine layer can be configured according to use demand.
Based on the above technical solution, organic high molecular compound material is organising with water sorption group
Object is closed, inorganic material is the inorganic salts with water sorption.
Specifically, machine high-molecular compound material can be the organising with water sorption group containing hydroxyl, carboxyl etc.
Close object.
Based on the above technical solution, the material for preparing of buffer layer 6 further includes simultaneous as a preferred implementation manner,
Have water sorption and stops the material of plasma effect.
It should be noted that the buffer layer 6 in AMOLED display panel provided by the invention is while adsorbing steam, it can
Vapour deposition process (the Plasma Enhanced Chemical Vapor of plasma enhanced chemical when stopping to form TFE5
Deposition, abbreviation PECVD) the ion pair organic luminous layer 2 in processing procedure causes the phenomenon that damaging, to avoid organic
2 luminous efficiency of luminescent layer reduces the appearance for the problem of even failing.
Specifically, having both water sorption and the material of plasma effect being stopped to include lithium fluoride, lithium chloride, lithium bromide, chlorine
Change one or more of calcium, calcirm-fluoride and magnesium chloride.
It should be noted that the lithium salts such as lithium fluoride, lithium chloride, lithium bromide, the calcium salts such as calcium chloride, calcirm-fluoride, magnesium chloride etc.
Magnesium salts has both water sorption and stops plasma effect.
Based on the above technical solution, TFE5 include at least one by organic film 52 and inorganic film 51 along bottom
To the stacked stacked structure formed in top layer direction.
Preferably, TFE5 includes two layers of inorganic film 51 and one layer of organic film 52, and organic film 52 is placed in two layers of nothing
Between machine film layer 51.
Based on the above technical solution, in order to enhance the waterproof effectiveness of TFE5, have as a preferred implementation manner,
The side of machine film layer 52 is provided with inorganic film 51, such as shown in Fig. 5.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
Bright spirit and scope.In this way, if these modifications and changes of the present invention belongs to the claims in the present invention and its equivalent technologies
Within the scope of, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of AMOLED display panel is provided with anode layer, organic luminous layer, cathode layer, covering along bottom to top layer direction
Layer and encapsulated layer TFE, which is characterized in that it further include the buffer layer being set between the TFE and the organic luminous layer, it is described
The material for preparing of buffer layer includes water-absorbent material.
2. AMOLED display panel according to claim 1, which is characterized in that the buffering is placed on the organic light emission
Between layer and the cathode layer；Alternatively,
The buffering is placed between the cathode layer and the coating；Alternatively,
The buffering is placed between the coating and the TFE.
3. AMOLED display panel according to claim 2, which is characterized in that the buffer layer is by tool water sorption
The single layer structure for preparing after organic high molecular compound material and inorganic material mixing with water sorption.
4. AMOLED display panel according to claim 2, which is characterized in that the buffer layer includes by organic polymer
The organic layer and inorganic layer formed by inorganic material that compound-material is formed, and along organic described in the bottom to top layer direction
Layer and the inorganic layer are stacked.
5. AMOLED display panel according to claim 3 or 4, which is characterized in that the organic high molecular compound material
Material is the organic compound with water sorption group, and the inorganic material is the inorganic salts with water sorption.
6. AMOLED display panel according to claim 5, which is characterized in that the material for preparing of the buffer layer further includes
It has both water sorption and stops the material of plasma effect.
7. AMOLED display panel according to claim 6, which is characterized in that it is described have both water sorption and stop etc. from
The material of son effect includes one or more of lithium fluoride, lithium chloride, lithium bromide, calcium chloride, calcirm-fluoride and magnesium chloride.
8. AMOLED display panel according to claim 7, which is characterized in that the TFE includes at least one by organic
Film layer and inorganic film are along the bottom to the stacked stacked structure formed in top layer direction.
9. AMOLED display panel according to claim 8, which is characterized in that the TFE include two layers inorganic film and
One layer of organic film, and the organic film is placed between two layers of inorganic film.
10. AMOLED display panel according to claim 9, which is characterized in that the side of the organic film is provided with
The inorganic film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810159439.7A CN110197877B (en) | 2018-02-26 | 2018-02-26 | AMOLED display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810159439.7A CN110197877B (en) | 2018-02-26 | 2018-02-26 | AMOLED display panel |
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| CN110197877A true CN110197877A (en) | 2019-09-03 |
| CN110197877B CN110197877B (en) | 2021-05-14 |
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| CN201810159439.7A Active CN110197877B (en) | 2018-02-26 | 2018-02-26 | AMOLED display panel |
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Cited By (1)
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| WO2021072858A1 (en) * | 2019-10-16 | 2021-04-22 | Tcl华星光电技术有限公司 | Display panel and manufacturing method and detection method therefor |
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| CN110197877B (en) | 2021-05-14 |
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