CN107565032A - A kind of organic light-emitting display device - Google Patents
A kind of organic light-emitting display device Download PDFInfo
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- CN107565032A CN107565032A CN201610504956.4A CN201610504956A CN107565032A CN 107565032 A CN107565032 A CN 107565032A CN 201610504956 A CN201610504956 A CN 201610504956A CN 107565032 A CN107565032 A CN 107565032A
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- inoranic membrane
- organic light
- display device
- emitting display
- display unit
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Abstract
The invention discloses a kind of organic light-emitting display device, including：Substrate, display unit, the display unit limits active area on the substrate, encapsulated layer, the encapsulated layer is sealing display unit, and have and be at least sequentially stacked with the first inoranic membrane, the stacked structure of first organic film and the second inoranic membrane, the organic light-emitting display device also includes protective layer, the protective layer is between the display unit and the encapsulated layer, point of second inoranic membrane outside the substrate active area at least partly contacts the substrate, the display unit includes cushion, gate insulating film, to electrode and interlayer dielectric, the interlayer dielectric is covered by first inoranic membrane and second inoranic membrane.OLED display in the present invention not only can be released the stress in encapsulating structure, and by setting protective layer and interlayer dielectric to substantially reduce or prevent outside moisture or oxygen from penetrating into the active area of display unit.
Description
Technical field
The present invention relates to a kind of organic light-emitting display device, more particularly to a kind of encapsulation with high water resistant, oxygen resistance
The organic light-emitting display device of structure.
Background technology
Organic light emitting display system includes organic light emitting apparatus or diode (OLED), and the OLED includes hole injection electricity
Pole, electron injection electrode and the organic luminous layer formed between hole injecting electrode and electron injection electrode.It is such aobvious
It is to launch the spontaneous emission system of light when exciton drops to ground state from excitation state to show system, wherein, noted when from hole injecting electrode
The hole that enters and the exciton is produced when being bonded to each other from electron injection electrode injected electrons in organic luminous layer.
Because OLED display systems do not need single light source, OLED display systems can work simultaneously at lower voltages
And there is frivolous design.This display system of new generation has the additional excellent of such as wide viewing angle, high-contrast and quick response
Point.However, because organic system material is easily influenceed and deteriorated by outside moisture or oxygen, light-emitting zone must be by effectively
Sealing.
In order that OLED display systems are in light weight and/or soft, it is a kind of including by laying nothing that exploitation is had been attempt to recently
The thin film encapsulation component of machine film or multiple layers of the stack laid organic film and inoranic membrane and formed.Because inoranic membrane is usual
By with larger thickness, so compared with organic film, inoranic membrane can be more effectively prevented from the infiltration of outside moisture or oxygen.
However, due to the thickness increase of inoranic membrane, so stress also increases, so that inoranic membrane peels off.Once encapsulating component is damaged
Bad or removal, the life-span of display system are just shortened.
For this reason, it is necessary in view of the above-mentioned problems, proposition is a kind of can to discharge stress, with high water resistant, the envelope of oxygen resistance
The organic light-emitting display device of assembling structure.
The content of the invention
It is an object of the invention to provide a kind of organic light-emitting display device.
To achieve the above object, the present invention provides following technical scheme：
A kind of organic light-emitting display device, including：Substrate, display unit, the display unit limit on the substrate
Active area, encapsulated layer, the encapsulated layer to seal display unit, and be at least sequentially stacked with the first inoranic membrane,
The stacked structure of first organic film and the second inoranic membrane, the organic light-emitting display device also include protective layer, the protective layer
Between the display unit and the encapsulated layer, point at least portion of second inoranic membrane outside the substrate active area
Tap touches the substrate, and the display unit includes cushion, gate insulating film, to electrode and interlayer dielectric, the layer
Between dielectric film covered by first inoranic membrane and second inoranic membrane.
Preferably, the protective layer positioned at it is described to electrode between first inoranic membrane.
Preferably, the protective layer includes covering the coating to electrode and formed in the supratectal shielding
Layer.
Preferably, second inoranic membrane and the interlayer dielectric are formed from the same material, and the material is nitridation
Silicon.
Preferably, first inoranic membrane is formed by aluminum oxide or silicon nitride.
Preferably, encapsulated layer also includes the second organic film formed on second inoranic membrane and formed described second
The 3rd inoranic membrane on organic film.
Preferably, the 3rd inoranic membrane contacts the top table of the second inoranic membrane at the point outside the substrate active area
Face, the 3rd inoranic membrane are formed by aluminum oxide or silicon nitride.
Preferably, it is first inorganic described in each overlay area ratio in second inoranic membrane and the 3rd inoranic membrane
The overlay area of film is big.
Compared with prior art, the advantage of the invention is that：OLED display in the present invention can not only make encapsulation
Stress in structure is released, and by setting protective layer and interlayer dielectric to substantially reduce or prevent outside
Moisture or oxygen are penetrated into the active area of display unit.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in invention, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 show the structural representation of the organic light-emitting display device of the embodiment of the present invention；
Fig. 2 show partial structurtes enlarged drawing in the organic light-emitting display device of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, detailed retouch is carried out to the technical scheme in the embodiment of the present invention
State, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained on the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
For a further understanding of the present invention, with reference to embodiment, the present invention is described in detail.
In the prior art, it is excessive and cause packaging effect often to there is stress in the encapsulating structure in organic light-emitting display device
The problem of poor.To solve problem of the prior art, the present invention proposes that a kind of encapsulating structure with high water resistant, oxygen resistance has
Machine luminous display unit, including：Substrate, display unit, the display unit limit active area on the substrate, encapsulated layer,
The encapsulated layer is to seal display unit, and with being at least sequentially stacked with the first inoranic membrane, the first organic film and the
The stacked structure of two inoranic membranes, the organic light-emitting display device also include protective layer, and the protective layer is single positioned at the display
Between first and described encapsulated layer, point of second inoranic membrane outside the substrate active area at least partly contacts the base
Plate, the display unit include cushion, gate insulating film, to electrode and interlayer dielectric, and the interlayer dielectric is by institute
State the first inoranic membrane and second inoranic membrane covering.
Compared with prior art, the advantage of the invention is that：Organic light-emitting display device in the present invention can not only make
Stress in encapsulating structure is released, and by setting protective layer and interlayer dielectric to substantially reduce or prevent
Outside moisture or oxygen are penetrated into the active area of display unit.
Referring to Fig. 1, Fig. 1 is the structural representation of the organic light-emitting display device of inventive embodiments.The invention provides
A kind of organic light-emitting display device, the organic light-emitting display device 10 include substrate 101, limit active area AA on the substrate 101
Display unit 200 and seal display unit 200 encapsulated layer 300.
Substrate 101 can be rigid or flexible, and can be by such as polyimides, poly terephthalic acid second two
Ester (PET), makrolon, PEN, polyarylate (PAR) and PEI have high thermal resistance and the height durable
The plastics of property are formed.However, the present embodiment not limited to this, substrate 101 can be by any other various of such as metal and glass
Material is formed.
Display unit 200 limits active area AA and including multiple pixel on the substrate 101, in a plurality of pixels, each
Pixel has thin film transistor (TFT) (TFT) (not shown) being electrically connected to each other and organic light-emitting display device.
Referring to Fig. 2, Fig. 2 show partial structurtes enlarged drawing in the organic light-emitting display device of the embodiment of the present invention.Its
In, display unit 200 is formed on the substrate 101, including cushion 201, gate insulating film 203, interlayer dielectric 205 and right
Electrode 215.Cushion 201 is formed on the active area AA of substrate 101, for preventing impurity from penetrating into substrate 101 and making base
Plate 101 planarizes.Gate insulating film 203 is formed to be formed on gate insulating film 203 in cushion 201, interlayer dielectric 205.
Wherein, interlayer dielectric 205 forms the active area AA in substrate 101.
Please continue to refer to Fig. 2, OLED display also includes encapsulated layer 300, and encapsulated layer 300 is sealing display unit
200, and with the stacking for being at least sequentially stacked with the first inoranic membrane 301, the first organic film 302 and the second inoranic membrane 303
Structure.Wherein, the first inoranic membrane 301 is arranged on interlayer dielectric 205 in the part beyond active area AA, the second inoranic membrane
303 point outside the active area AA of substrate 101 at least partly contact substrate, i.e. the second inoranic membrane 303 can be by display unit 200
It is completely covered, i.e. the second inoranic membrane 303 can be by cushion 201, gate insulating film 203, interlayer dielectric 205 and to electrode
The structures such as 215 are completely covered.Be arranged such can make encapsulating structure have it is excellent block water, oxygen resistance.
In OLED display, the first inoranic membrane 301 is formed by aluminum oxide or silicon nitride, the second inoranic membrane 303 and layer
Between dielectric film 205 be formed from the same material, the material can be silicon nitride material.That is, because the second inoranic membrane 303 is by SiNx
Formed, and interlayer dielectric 205 is by SiNxFormed, so by between the second inoranic membrane 303 of enhancing and interlayer dielectric 205
Bonding force.
Please continue to refer to Fig. 2, the encapsulated layer 300 also includes forming the He of the second organic film 304 on the second inoranic membrane 303
Form the 3rd inoranic membrane 305 on the second organic film 304.Wherein, the 3rd inoranic membrane 305 is outside the active area AA of substrate 101
Point at contact the top surface of the second inoranic membrane 303, and the 3rd inoranic membrane 305 is formed by aluminum oxide or silicon nitride.When the 3rd
When the inoranic membrane 303 of inoranic membrane 305 and second is formed from the same material, for example, being SiNxMaterial, the 3rd inoranic membrane can be made
305 and the second bonding force increase between inoranic membrane 303, so as to effectively further prevent the infiltration of outside moisture or oxygen.And
And second each overlay area in inoranic membrane 303 and the 3rd inoranic membrane 305 is bigger than the overlay area of the first inoranic membrane 301,
It can so make to block water, oxygen resistance is further lifted.
Please continue to refer to Fig. 2, the organic light-emitting display device also includes protective layer 220, and protective layer 220 is located at display unit
Between 200 and encapsulated layer 300, specifically, protective layer 220 is located between the inoranic membrane 301 of electrode 215 and first.Wherein, protect
Layer 220 includes covering to the coating 222 of electrode 215 and forms the screen layer 224 on coating 222.By single in display
Protective layer is set between member and encapsulated layer, can further lift the blocking water of organic light-emitting display device, oxygen resistance.
What the embodiments of the present invention described shown in accompanying drawing and with reference to the accompanying drawings were merely exemplary, and the present invention is simultaneously
It is not limited to these embodiments.Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details,
It illustrate only and according to the solution of the present invention closely related structure and/or processing step, and eliminate and this hair in accompanying drawing
The little other details of bright relation.Described above is only the embodiment of the application, it is noted that for the art
Those of ordinary skill for, on the premise of the application principle is not departed from, some improvements and modifications can also be made, these change
Enter and retouch the protection domain that also should be regarded as the application.
Claims (8)
1. a kind of organic light-emitting display device, including：Substrate, display unit, the display unit define on the substrate
Source region, encapsulated layer, the encapsulated layer is to seal display unit, and with being at least sequentially stacked with the first inoranic membrane, the
The stacked structure of one organic film and the second inoranic membrane, it is characterised in that the organic light-emitting display device also includes protective layer, institute
Protective layer is stated between the display unit and the encapsulated layer, second inoranic membrane is outside the substrate active area
Point at least partly contacts the substrate, and the display unit includes cushion, gate insulating film, to electrode and layer insulation
Film, the interlayer dielectric are covered by first inoranic membrane and second inoranic membrane.
2. organic light-emitting display device according to claim 1, it is characterised in that the protective layer is positioned at described to electrode
Between first inoranic membrane.
3. organic light-emitting display device according to claim 2, it is characterised in that it is described right that the protective layer includes covering
The coating of electrode and formation are in the supratectal screen layer.
4. organic light-emitting display device according to claim 1, it is characterised in that second inoranic membrane and the interlayer
Dielectric film is formed from the same material, and the material is silicon nitride.
5. organic light-emitting display device according to claim 1, it is characterised in that first inoranic membrane by aluminum oxide or
Silicon nitride is formed.
6. organic light-emitting display device according to claim 1, it is characterised in that encapsulated layer also includes being formed described the
The 3rd inoranic membrane of the second organic film and formation on second organic film on two inoranic membranes.
7. organic light-emitting display device according to claim 6, it is characterised in that the 3rd inoranic membrane is in the substrate
The top surface of the second inoranic membrane is contacted at point outside active area, the 3rd inoranic membrane is formed by aluminum oxide or silicon nitride.
8. organic light-emitting display device according to claim 7, it is characterised in that second inoranic membrane and the described 3rd
Each overlay area in inoranic membrane is bigger than the overlay area of first inoranic membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610504956.4A CN107565032A (en) | 2016-06-30 | 2016-06-30 | A kind of organic light-emitting display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610504956.4A CN107565032A (en) | 2016-06-30 | 2016-06-30 | A kind of organic light-emitting display device |
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| Publication Number | Publication Date |
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| CN107565032A true CN107565032A (en) | 2018-01-09 |
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| CN201610504956.4A Pending CN107565032A (en) | 2016-06-30 | 2016-06-30 | A kind of organic light-emitting display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020056862A1 (en) * | 2018-09-17 | 2020-03-26 | 武汉华星光电半导体显示技术有限公司 | Protective film of oled packaging structure, oled packaging structure, and fabricating method for protective film |
| CN111699757A (en) * | 2018-02-07 | 2020-09-22 | 株式会社日本显示器 | Organic EL display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101766054A (en) * | 2007-07-31 | 2010-06-30 | 住友化学株式会社 | Organic electroluminescence device and method for manufacturing the same |
| CN101794810A (en) * | 2009-01-20 | 2010-08-04 | 三星移动显示器株式会社 | Organic light-emitting display apparatus |
| CN203339167U (en) * | 2012-11-19 | 2013-12-11 | 三星显示有限公司 | Organic light emitting display system |
-
2016
- 2016-06-30 CN CN201610504956.4A patent/CN107565032A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101766054A (en) * | 2007-07-31 | 2010-06-30 | 住友化学株式会社 | Organic electroluminescence device and method for manufacturing the same |
| CN101794810A (en) * | 2009-01-20 | 2010-08-04 | 三星移动显示器株式会社 | Organic light-emitting display apparatus |
| CN203339167U (en) * | 2012-11-19 | 2013-12-11 | 三星显示有限公司 | Organic light emitting display system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111699757A (en) * | 2018-02-07 | 2020-09-22 | 株式会社日本显示器 | Organic EL display device |
| WO2020056862A1 (en) * | 2018-09-17 | 2020-03-26 | 武汉华星光电半导体显示技术有限公司 | Protective film of oled packaging structure, oled packaging structure, and fabricating method for protective film |
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