CN107833977B - A kind of organic light emitting display and preparation method thereof - Google Patents
A kind of organic light emitting display and preparation method thereof Download PDFInfo
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- CN107833977B CN107833977B CN201710728605.6A CN201710728605A CN107833977B CN 107833977 B CN107833977 B CN 107833977B CN 201710728605 A CN201710728605 A CN 201710728605A CN 107833977 B CN107833977 B CN 107833977B
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- sealant
- light emitting
- moisture absorption
- organic light
- emitting display
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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
- H10K50/842—Containers
- H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
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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
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
Abstract
The present invention provides a kind of organic light emitting displays, including having the silicon substrate of driving circuit, the OLED device on the silicon substrate, the first sealant in the OLED device, the color filter layers on first sealant, the second sealant on the color filter layers, the cover board on second sealant；The color filter layers include the colour filter and the moisture absorption separator between adjacent filters of black matrix, the red that setting is spaced apart by the black matrix or green or blue.Organic light emitting display of the invention can be absorbed the moisture discharged in colour filter, to avoid OLED device described in moisture damage, improve packaging effect, extend the service life of organic light emitting display by the way that moisture absorption separator is arranged between adjacent filters；And moisture absorption separator will not hinder the transmission of the light penetrated by colour filter between adjacent filters, and improve the range of choice of its material.
Description
Technical field
This application involves a kind of organic light emitting display, the high all colour organic luminous display of especially a kind of stability
Device and preparation method thereof.
Background technique
Broken colour organic light emitting display (OLED device) generallys use the realization of color filter layers technology, i.e., in OLED device
After part completes, thin-film package is carried out immediately；Then color filter layers (CF layers of RGB) is made again.And CF layers of RGB then by wet
Method technique is completed, and more processing procedures and wet process processing procedure complicated for a long time, are the great challenges to OLED thin-film package, especially to water
The OLED device of oxygen sensitivity brings stability hidden danger.
To solve the above problems, existing broken colour organic light emitting display, which uses to be arranged above CF layers of RGB, to be had
The coat of hygroscopic material, however coat is located at the CF layers of top RGB, on the one hand will affect the luminous output effect of OLED device
The selectivity of fruit, another aspect hygroscopic material is less.
In view of this, it is necessary to provide a kind of improved organic light emitting display and preparation method thereof, it is above-mentioned to solve
Technical problem.
Summary of the invention
One of to solve the above-mentioned problems, present applicant proposes a kind of high all colour organic luminous display devices of stability
And preparation method thereof.
To achieve the goals above, the application provides a kind of organic light emitting display, including having the silicon of driving circuit
Substrate, the OLED device on the silicon substrate, the first sealant in the OLED device, be located at it is described first close
Color filter layers on sealing, the second sealant on the color filter layers, the lid on second sealant
Plate；The color filter layers include the colour filter of black matrix, the red that setting is spaced apart by the black matrix or green or blue
And the moisture absorption separator between adjacent filters.
As a further improvement of the present invention, the moisture absorption separator is located above the black matrix.
As a further improvement of the present invention, at least partly structure of the moisture absorption separator is contacted with the colour filter.
As a further improvement of the present invention, the top of the moisture absorption separator is not less than the top of the colour filter.
As a further improvement of the present invention, the moisture absorption separator is the glue with hygroscopic agent, and the hygroscopic agent is object
Manage desiccant or chemical reaction one of hygroscopic agent or high molecular polymer.
For achieving the above object, the present invention also provides a kind of preparation methods of organic light emitting display, including such as
Lower step: S1 provides the silicon substrate for having driving circuit, prepares OLED device on the silicon substrate；S2, in the OLED device
The first sealant is made on part；S3 makes color filter layers on first sealant, specifically comprises the following steps: S31,
Black matrix is made on first sealant；S32, production are spaced apart the red being arranged or green or blue by the black matrix
Colour filter；S33 makes the moisture absorption separator between the adjacent colour filter；S4 makes on the color filter layers
Make the second sealant；S5 makes cover board above second sealant.
As a further improvement of the present invention, S33 specifically: the transparent adhesive tape for being mixed with hygroscopic agent is provided, using spin-coating method
Coat is prepared, the transparent adhesive tape above the colour filter is then removed, forms the moisture absorption separator between the colour filter.
As a further improvement of the present invention, the top of the moisture absorption separator is not less than the top of the colour filter.
As a further improvement of the present invention, the hygroscopic agent is that transparent physical dryness agent or transparent chemistry are anti-
Answer one of hygroscopic agent or transparent high molecular polymer.
Beneficial effects of the present invention: organic light emitting display of the invention is inhaled by being arranged between adjacent filters
The moisture discharged in colour filter can be absorbed in wet separator, to avoid OLED device described in moisture damage, improves encapsulation effect
Fruit extends the service life of organic light emitting display；And moisture absorption separator will not hinder between adjacent filters by filtering
The transmission for the light that color chips penetrates, and improve the range of choice of its material.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the organic light emitting display in a preferred embodiment of the present invention；
Fig. 2 is the structural schematic diagram of color filter layers and the second sealant in organic light emitting display in Fig. 1；
Fig. 3 is the processing step that the present invention prepares color filter layers on the second sealant；
Fig. 4 is the structural schematic diagram of the organic light emitting display in another preferred embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the organic light emitting display in another preferred embodiment of the present invention；
Fig. 6 is the SEM figure of moisture absorption separator in organic light emitting display in Fig. 1.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one
Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall in the protection scope of this application.
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, the orientation or positional relationship of the instructions such as term " on ", "lower" is base
In orientation or positional relationship shown in the drawings, it is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of invention.
As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, organic light emitting display of the invention includes: the silicon for having driving circuit
Substrate, the OLED device on the silicon substrate, the first sealant in the OLED device, be located at it is described first close
Color filter layers on sealing, the second sealant on the color filter layers, the lid on second sealant
Plate.
The OLED device includes anode, hole transmission layer, organic light emitting film, electron transfer layer, cathode.
The color filter layers include black matrix 1, by the red of the black matrix 1 setting spaced apart or green or blue
Colour filter 2 and the moisture absorption separator 3 between adjacent filters 2.The moisture absorption separator 3 can be absorbed to be released in colour filter 2
The moisture put improves packaging effect, extends the use of organic light emitting display to avoid OLED device described in moisture damage
Service life, and the transmission of the light penetrated by colour filter 2 will not be hindered, and improve the range of choice of its material.
The moisture absorption separator 3 is located above the black matrix 1, rather than the top of the colour filter 2, will not hinder by filtering
The transmission for the light that color chips 2 penetrates, and improve the range of choice of its material.The top of the moisture absorption separator 3 is not less than described
The top of colour filter 2 can form barrier between adjacent colour filter 2, while can have enough absorbent capacity absorption institute
State the moisture of the release of colour filter 2.
Specifically, the shape of the moisture absorption separator 3 without limitation, can be trapezoidal shape shown in Fig. 2, can also be Fig. 4 institute
The lower part shown the combined shaped trapezoidal in part on quadrangle, can also be oblong-shaped shown in fig. 5.The moisture absorption every
At least partly structure of off member 3 is contacted with the colour filter 2 can reach moisture absorption.
Preferably, as shown in figure 5, gapless namely the moisture absorption between the colour filter 2 and the moisture absorption separator 3
Separator 3 can fill the gap between the colour filter 2 of full phase neighbour；It can avoid second sealant in the production process
It penetrates between the two, influences subsequent moisture absorption.
The moisture absorption separator 3 is the glue with hygroscopic agent, can be further reduced because the factors such as diffusing reflection, refraction are to OLED
The influence of the luminous output of device.The hygroscopic agent can be physical dryness agent, such as silica gel, carbon nanotube, zeolite；It can also be with
To chemically react hygroscopic agent, such as alkali metal oxide, metal halide, chlorine peroxide；It may be high molecular polymer, such as
Fiber, resin etc..
In the present embodiment, the moisture absorption separator 3 is the glue with calcium oxide particle as shown in the table, the calcium oxide
Partial size≤20nm of particle, quality accounting of the calcium oxide particle in the moisture absorption separator 3 are 3%~6%.Wherein,
The SEM of the moisture absorption separator 3 schemes as shown in fig. 6, silicon oxide particle is dispersed in glue.Preferably, it is mixed with the suction
Glue after humectant is transparent, and light transmittance is not less than 85%.
| It is mixed with the glue of hygroscopic agent | Performance number | Unit |
| Viscosity | 23.0±3.0 | CST |
| Hygroscopic agent (CaO) | 3~6 | Wt% |
| Specific gravity | 1.05±0.1 | |
| Light transmittance | ≥85 | % |
| Dust granule (φ > 0.5um), | < 100 | Pcs/ml |
It please refers to shown in Fig. 3, the present invention also provides a kind of preparation methods of organic light emitting display, including walk as follows
It is rapid:
S1 provides the silicon substrate for having driving circuit, prepares OLED device on the silicon substrate；Specifically: successively exist
Anode, hole transmission layer, organic light emitting film, electron transfer layer, cathode are made on the silicon substrate forms OLED device.
S2 makes the first sealant in the OLED device, specially prepares the first sealant using Optical transparent adhesive,
The OLED device is formed and is protected；
S3 specifically includes S31 as shown in figure 3, making color filter layers on first sealant, such as Fig. 3 (a) institute
Show, black matrix 1 is made on first sealant；S32 makes as shown in Fig. 3 (b)~Fig. 3 (d) by between the black matrix 1
The colour filter 2 of the red or green or blue that are spaced apart；S33, as shown in Fig. 3 (e), production is located at the adjacent colour filter
Moisture absorption separator 3 between 2；
S4 makes the second sealant on the color filter layers, specially using the second sealing of Optical transparent adhesive preparation
Layer；
S5 makes cover board above second sealant, completes encapsulation.
S31 specifically: using the mode of vacuum sputtering, matrix arrangement is made on first sealant by mask plate
Black matrix 1, with a thickness of
S32 specifically: the colour filter 2 of red green, blue is made on first sealant with black matrix 1,
The production order of the colour filter 2 of three kinds of colors is unlimited；The production method of the colour filter 2 of each color are as follows: as shown in Fig. 3 (b),
The figure layer 21 of red green or blue dyestuff is first carried out using spin-coating method on first sealant with black matrix 1
Production then carries out UV exposure, energy using the exposure machine of 365nm wavelength by mask plate 22 as shown in Fig. 3 (c)~Fig. 3 (d)
80mj is measured, develop 40S, i.e., the colour filter 2 of corresponding color is prepared in scheduled region.
S33 specifically: as shown in Fig. 3 (e), the transparent adhesive tape for being mixed with hygroscopic agent as shown above is provided, using spin coating
Method prepares coat, then removes the transparent adhesive tape of 2 top of the colour filter, formed moisture absorption between the colour filter 2 every
Off member 3.In the present embodiment, spin speed 2000rad/S, the thickness of the moisture absorption separator 3 is between 3 μm~5 μm, institute
The top for stating moisture absorption separator 3 is not less than the top of the colour filter 2.The selection of the hygroscopic agent is as described above, repeat no more.
In conclusion organic light emitting display of the invention, by the way that moisture absorption separator is arranged between adjacent filters 2
3, the moisture discharged in colour filter 2 can be absorbed, to avoid OLED device described in moisture damage, improve packaging effect, extend
The service life of organic light emitting display；And moisture absorption separator 3 will not hinder between adjacent filters 2 by colour filter 2
The transmission of the light of transmission, and improve the range of choice of its material.
Although not each embodiment only includes one only it should be appreciated that this specification is described according to embodiment
Vertical technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should be by specification
As a whole, the technical solutions in the various embodiments may also be suitably combined, formed it will be appreciated by those skilled in the art that
Other embodiments.
The series of detailed descriptions listed above are illustrated only for possible embodiments of the invention,
The protection scope being not intended to limit the invention, it is all without departing from equivalent embodiment made by technical spirit of the present invention or change should all
It is included within protection scope of the present invention.
Claims (9)
1. a kind of organic light emitting display, including having the silicon substrate of driving circuit, the OLED device on the silicon substrate
Part, the color filter layers on first sealant, is located at the coloured silk at the first sealant in the OLED device
The second sealant on chromogenic filter layer, the cover board on second sealant；The color filter layers include black matrix, quilt
The black matrix is spaced apart the red of setting or the colour filter of green or blue；It is characterized by: the color filter layers also wrap
The moisture absorption separator between adjacent filters is included, at least partly structure and the colour filter of the moisture absorption separator connect
Touching.
2. organic light emitting display according to claim 1, it is characterised in that: the moisture absorption separator is located at described black
Above matrix.
3. organic light emitting display according to claim 1, it is characterised in that: the top of the moisture absorption separator is not low
In the top of the colour filter.
4. organic light emitting display according to claim 1, it is characterised in that: the moisture absorption separator is with transparent
Hygroscopic agent glue, the hygroscopic agent be physical dryness agent or chemical reaction one of hygroscopic agent or high molecular polymer.
5. organic light emitting display according to claim 1, it is characterised in that: the moisture absorption separator is with oxidation
The glue of calcium particle.
6. a kind of preparation method of organic light emitting display, characterized by the following steps:
S1 provides the silicon substrate for having driving circuit, prepares OLED device on the silicon substrate；
S2 makes the first sealant in the OLED device；
S3 makes color filter layers on first sealant, specifically comprises the following steps: S31, in first sealant
Upper production black matrix；S32, production are spaced apart the red of setting or the colour filter of green or blue by the black matrix；S33, system
Make the moisture absorption separator between the adjacent colour filter, at least partly structure and the colour filter of the moisture absorption separator
Piece contact；
S4 makes the second sealant on the color filter layers；
S5 makes cover board above second sealant.
7. the preparation method of organic light emitting display according to claim 6, it is characterised in that: S33 specifically: provide
It is mixed with the transparent adhesive tape of hygroscopic agent, coat is prepared using spin-coating method, then removes the transparent adhesive tape above the colour filter, is formed
Moisture absorption separator between the colour filter.
8. the preparation method of organic light emitting display according to claim 6 or 7, it is characterised in that: the moisture absorption every
The top of off member is not less than the top of the colour filter.
9. the preparation method of organic light emitting display according to claim 7, it is characterised in that: the hygroscopic agent is
The physical dryness agent of bright property or transparent chemical reaction one of hygroscopic agent or transparent high molecular polymer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710728605.6A CN107833977B (en) | 2017-08-23 | 2017-08-23 | A kind of organic light emitting display and preparation method thereof |
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| CN201710728605.6A CN107833977B (en) | 2017-08-23 | 2017-08-23 | A kind of organic light emitting display and preparation method thereof |
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| CN107833977A CN107833977A (en) | 2018-03-23 |
| CN107833977B true CN107833977B (en) | 2019-08-09 |
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| CN109888121A (en) * | 2019-01-25 | 2019-06-14 | 深圳市华星光电半导体显示技术有限公司 | The preparation method and display device of luminescent panel, luminescent panel |
| CN109860417A (en) * | 2019-01-28 | 2019-06-07 | 深圳市华星光电半导体显示技术有限公司 | The preparation method and display device of luminescent panel, luminescent panel |
| CN111192977B (en) * | 2020-02-17 | 2022-09-02 | 京东方科技集团股份有限公司 | Substrate, manufacturing method thereof, display panel and display device |
| CN113745388B (en) * | 2020-05-29 | 2023-10-24 | 成都辰显光电有限公司 | Color film substrate, display panel and manufacturing method thereof |
| CN112981315A (en) * | 2021-02-05 | 2021-06-18 | 惠州市聚飞光电有限公司 | Black matrix forming method, display module and display device |
| US20220209178A1 (en) * | 2020-12-04 | 2022-06-30 | Boe Technology Group Co., Ltd. | Display panel and method of manufacturing the same, and display device |
| CN113193132A (en) * | 2021-04-26 | 2021-07-30 | 睿馨（珠海）投资发展有限公司 | Quantum dot OLED light-emitting device, display device and preparation method thereof |
| CN113193157A (en) * | 2021-04-26 | 2021-07-30 | 睿馨（珠海）投资发展有限公司 | Method for preparing silicon-based OLED (organic light emitting diode) micro display by nanoimprint lithography |
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| JP2005011794A (en) * | 2003-05-22 | 2005-01-13 | Tohoku Pioneer Corp | Organic el panel and its manufacturing method |
| CN100433352C (en) * | 2003-09-25 | 2008-11-12 | 友达光电股份有限公司 | Top-lighting organic electroluminescent display device and its mfg method |
| US9653703B2 (en) * | 2013-02-08 | 2017-05-16 | Sharp Kabushiki Kaisha | Electroluminescent device including a protective film between an electroluminescent element and a desiccant layer |
| KR102478491B1 (en) * | 2015-12-30 | 2022-12-16 | 엘지디스플레이 주식회사 | Organic Light Emitting Diode Display Device And Method Of Fabricating The Same |
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