CN102832350B - OLED and the manufacture method thereof of light emission rate is improved by PS microballoon layer - Google Patents
OLED and the manufacture method thereof of light emission rate is improved by PS microballoon layer Download PDFInfo
- Publication number
- CN102832350B CN102832350B CN201210309051.3A CN201210309051A CN102832350B CN 102832350 B CN102832350 B CN 102832350B CN 201210309051 A CN201210309051 A CN 201210309051A CN 102832350 B CN102832350 B CN 102832350B
- Authority
- CN
- China
- Prior art keywords
- microballoon
- pellet
- carrier
- layer
- oled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses the OLED being improved light emission rate by PS microballoon layer, comprise OLED element, PDMS film and PS microballoon layer, described PDMS film one side is covered on the exiting surface of OLED element, the another side of described PDMS film pastes PS microballoon layer, and described PS microballoon layer is the single layer structure be made up of PS arrangement of microspheres.The invention also discloses a kind of manufacture improves the OLED of light emission rate method by PS microballoon layer, comprise the following steps: step one, in the plane of carrier-pellet, make one deck PS microballoon layer; Step 2, on the exiting surface of OLED element, make one deck PDMS film; Step 3, one side one side carrier-pellet with PS microballoon layer and OLED element with PDMS film to be fitted, under the structure level of laminating is positioned over room temperature environment, dry solidification; Step 4, carrier-pellet to be taken off from OLED element, PS microballoon layer is peeled off from carrier-pellet and bonds with PDMS film.Have that facilities and equipments are simple, cost is low, light emission rate improves significant advantage.
Description
Technical field
The present invention relates to a kind of technology improving OLED light emission rate, particularly improved OLED and the manufacture method thereof of light emission rate by PS microballoon layer.
Background technology
OLED refers to Organic Light Emitting Diode (Organiclight-emittingdiodes, be called for short OLED), it is a kind of novel flat panel display and planar light source, has energy-conservation, the advantage such as luminous efficiency is high, fast response time, visual angle is wide, driving voltage is low.But, conventional OLED product common in the market, its light extraction efficiency is lower, only have an appointment 20% luminous energy shine outside OLED, all the other light of about 80% are limited in OLED inside due to the reason of total reflection.
For improving the light emission rate of OLED, a lot of people is studied, as people such as Liu Mo that author is Jilin University's electronics science and engineering college, described in the literary composition that the name delivered in " spectroscopy spectrum analysis " in April, 2011 is called " organic electroluminescence device light extraction efficiency strengthens progress ".The research of industry to OLED light extraction efficiency mainly contains the transformation to OLED internal structure, and these two aspects of transformation to OLED exiting surface.The present invention is that the method by improving OLED exiting surface reaches the object improving light emission rate.
The total reflection of light in exiting surface and Air Interface is mainly reduced to the transformation of OLED exiting surface, current design in this respect mainly contains three kinds, the first is the exiting surface of direct roughening OLED, the second introduces anti-reflective film, the third increases lenticule film,, although improve the light emission rate of OLED to some extent, also there is a lot of defects in these three kinds of schemes.
For the first scheme, direct roughening exiting surface, although technique is simple, probably bring damage to device, and the uncertainty of its roughening easily causes the photoelectric properties uniformity of device poor.For first scheme, its basic manufacture method is the MgF in OLED exiting surface deposition specific thicknesses
2film, utilizes MgF
2the characteristic of refractive index 1.38 plays the effect of refractive index matching layers, thus improves bright dipping; But the light emission rate that this structural design can improve is not high, and need the material new to OLED outer surface vacuum evaporation one deck, at evaporation device, in OLED, the organic polymer character of each functional layer will inevitably be affected, and make luminescent device unstable properties, reliability is low, meanwhile, also there is complex process in this design, cost is high, is unfavorable for the defect of industrialized mass.For the third scheme, it lenticule film is the two-way array arrangement that the lenticule of tens micron levels forms by taking measurements greatly, the lenticule of two-way array arrangement carries out scattering to light, there is following problem in the method, what prepare due to the program is the matrix of microlenses of regular arrangement, the scattering of light is uneven, dispersion effect is very poor, easily cause the bright dipping of luminescent device very fuzzy, cause the image of display very fuzzy, meanwhile, the lenticule film making regular arrangement needs very meticulous technique, the difficulty of large-scale industrial production is large, and cost is high.As can be seen here, prior art mainly contains following defect: (1) light-out effect is undesirable, can damage the structure of OLED itself or performance; (2) be difficult to realize mass production, complex process, cost is high; (3) dispersion effect of light is poor, and image display is fuzzy; (4) unstable properties of luminescent device, reliability is low.
The PS microballoon that the present invention mentions is polystyrene microsphere (Polystyrene is called for short PS), for available raw material can be purchased in market, and the PS microballoon sold manufactured by section as micro-in Wuhan China Tech science and technology limited Company.The PDMS mentioned is that (Polydimethylsiloxane is called for short: PDMS), is also comparatively common on market and can purchases available raw material, as institute of Dow corning company production and selling dimethyl silicone polymer.
Summary of the invention
Primary and foremost purpose of the present invention is that the shortcoming overcoming prior art is with not enough, is provided the OLED being improved light emission rate by PS microballoon layer, has cost low, the advantage that light emission rate is high.
The shortcoming that another object of the present invention is to overcome prior art, with not enough, provides the manufacture method of the OLED being improved light emission rate by PS microballoon layer, has that facilities and equipments are simple, cost is low, and light emission rate improves significant advantage.
Primary and foremost purpose of the present invention is achieved through the following technical solutions: the OLED being improved light emission rate by PS microballoon layer, comprise OLED element, PDMS film and PS microballoon layer, described PDMS film one side is covered on the exiting surface of OLED element, the another side of described PDMS film pastes PS microballoon layer, and described PS microballoon layer is the single layer structure be made up of PS arrangement of microspheres.
Utilize PS microballoon and the good intersolubility of PDMS film and apply suitable pressure, making PS microballoon embed in PDMS film, after PS microballoon embeds PDMS film, the better effects if of its optical coupling.
Preferably, described OLED element is bottom emitting type luminescent device, and comprise the glass substrate layer, ito anode layer, organic luminous layer and the aluminium cathode layer that set gradually, described PDMS film is covered on glass substrate layer.
Preferably, the side that described PS microballoon contacts with PDMS film embeds in PDMS film.
Preferably, the thickness of described PDMS film is 2 μm to 4 μm; The diameter of described PS microballoon is 5 μm, and the thickness of PS microballoon layer is 5 μm.
Preferably, the thickness of described PDMS film is 3 μm.
Another object of the present invention is achieved through the following technical solutions: a kind of manufacture method being improved the OLED of light emission rate by PS microballoon layer, is comprised the following steps:
Step one, in the plane of carrier-pellet, make one deck PS microballoon layer, described PS microballoon layer is the single layer structure be made up of PS arrangement of microspheres;
Step 2, on the exiting surface of OLED element, make one deck PDMS film;
Step 3, one side one side carrier-pellet with PS microballoon layer and OLED element with PDMS film fitted, under the structure level of laminating is positioned over room temperature environment, it is little of 3 hours to dry solidification 1;
Step 4, carrier-pellet to be taken off from OLED element, PS microballoon layer is peeled off from carrier-pellet and bonds with PDMS film.
Because PS microballoon and PDMS film have good intersolubility, can produce and slightly dissolve each other, and PDMS film is flexible after their laminatings, in the process that PS microballoon and PDMS film are fitted, be stressed impact, and PS microballoon can embed in PDMS film under the impact of above factor.After PS microballoon embeds PDMS film, the better effects if of its optical coupling.
Preferably, in described step one, the method making PS microballoon layer is:
S1, PS microballoon raw material to be dissolved in ethanol, then by the mixed liquor instillation water of PS microballoon and ethanol, make the suspension-turbid liquid that concentration is 5wt%;
S2, cleaning carrier-pellet, be then placed on carrier-pellet inside hydrophilic treated solution and soak 10 minutes;
S3, take out carrier-pellet, and put it to inside PS microballoon suspension-turbid liquid soak 10 minutes;
S4, drop on the carrier-pellet of horizontal positioned by PS microballoon suspension-turbid liquid, then utilize the sol evenning machine of common compact at room temperature and carry out under dustfree environment getting rid of film, rotating speed 2000 rpms, turns 30s;
S5, by carrier-pellet take out, horizontal positioned, dries more than 3h naturally.
Preferably, in described step one, the method making PS microballoon layer is:
S1, PS microballoon raw material to be dissolved in ethanol, then by the mixed liquor instillation water of PS microballoon and ethanol, make the suspension-turbid liquid that concentration is 5wt%;
S2, clean carrier-pellet, glass carrier sheet is immersed in 5min in the acid solution of hydrogen peroxide, then take out and dry, to dry or by plasma treatment;
S3, carrier-pellet is put into culture dish, add water in culture dish, the water surface just covered carrier-pellet, subsequently PS microballoon was suspended drop and formed individual layer PS microballoon layer in the surface of water;
S4, employing vertical deposition method, gently pull out carrier-pellet, be placed on level place and naturally dry, room temperature, super-clean environment after taking out from solution.
Preferably, in described step 2, the method making PDMS film is:
The prepolymer of S1, PDMS and curing agent mix in the ratio of 10:1, are then positioned over lower 30 minutes of the vacuum environment of 3kPa ~ 5kPa, to remove the bubble of wrapped folder;
S2, OLED element be fixed on the vacuum cup of vacuum spin coater, upwards, level guaranteed by usage level instrument to exiting surface, is then poured on exiting surface by PDMS mixture, and open spin coater spin coating, rotating speed 2000 rpms, turns 30s;
S3, taking-up OLED element, have spin coating the OLED element of PDMS mixture to be placed in normal temperature environment, dustless space, solidify 2 hours.
Preferably, in described step 3, carrier-pellet is had the one side level of PS microballoon layer upwards, OLED element has one of PDMS film and faces down and to close with PS microballoon laminating.
The present invention has following advantage and effect relative to prior art:
1. the device luminescent lumen efficiency prepared by improves a lot than traditional device.And to the light intensity viewing angle distribution of OLED luminescence, have some improvement.
2. device improvements does not relate to the change of device inside structure with material, therefore can not produce the problem of some the unknowns and impact with stability the efficiency of device.
3. the method for Chemical self-assembly, the PS microballoon technique preparing individual layer is simple, and step is few, does not need valuable instrument and equipment, such as exposure machine, mask aligner etc.
4. prepare microballoon inexpensive with the material price of PDMS film, consumption is also little, so the device preparation cost improved is very low, is very applicable to industrialization.
5. the device stability of preparation is good, and because PDMS (dimethyl silicone polymer) is fine with the chemical stability of PS (polystyrene), both intersolubilities are good, and PS microballoon is not easy to come off.And the PDMS film formed is water insoluble, not oxidizable, and good elasticity is had to cause the reduction of device efficiency with there being certain mechanical strength can prevent the outside damage to its surface.
6. the environment great majority that prepared by improvement device are under the environment of room temperature, and do not need low temperature to follow the environment of high temperature, this also greatly reduces the cost of preparation.
7.PDMS is respectively 1.48 with 1.59 with the refractive index of PS, with glass substrate comparison match, total reflection can not be caused to increase.
The large I of 8.PS microballoon adjusts as required, so the dispersion effect of PDMS also can adjust as required, to reach the luminous efficiency of needs with angular distribution.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of OLED with PS microballoon layer of the embodiment of the present invention.
Fig. 2 is the carrier-pellet schematic diagram with PS microballoon layer.
Fig. 3 be OLED with PDMS film with the carrier-pellet pressing with PS microballoon layer before schematic diagram.
Fig. 4 is OLED with PDMS film and schematic diagram during carrier-pellet pressing with PS microballoon layer.
Fig. 5 is the schematic diagram separated after OLED and the carrier-pellet pressing with PS microballoon layer with PDMS film.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, the OLED being improved light emission rate by PS microballoon layer of the present embodiment, comprise OLED element 3, the one side being located at PDMS film 2, the PDMS film 2 of OLED element exiting surface is covered on the exiting surface of OLED element 3, and another side is provided with PS microballoon layer 1.Described PS microballoon layer 1 is made up of individual layer PS microballoon, and namely the thickness of PS microballoon layer 1 is the diameter length of PS microballoon.
Described OLED element is bottom emitting OLED element 3, comprises glass substrate layer 31, ito anode layer 32, organic luminous layer 33 and aluminium cathode layer 34, is the structure of OLED element conventional on market.The light that this bottom emitting OLED element sends shines outside (exiting surface) from glass substrate layer 31, and described PDMS film pastes 2 and is overlying on glass substrate layer 31.
Described PS microballoon layer 1 is the structure of individual layer microballoon, and the side that PS microballoon contacts with PDMS film 2 embeds in PDMS film, and this has good intersolubility based on PS and PDMS, and PDMS film has good flexibility and flexible result.So described embedding comprises the embedding of intersolubility, and embed based on the compression type of flexibility.The embedding of PS microballoon, increases the contact area of PS microballoon and PDMS film, improves the effect of optical coupling.
The refractive index of described glass substrate layer 31 is 1.55, and the refractive index of described PDMS film 2 is 1.48, and the refractive index of described PS microballoon is 1.59, and the refractive index of air is about 1; Vision glass substrate can effectively reduce the total reflection occurring in glass substrate 31 exiting surface after increasing PDMS film 2, improves beam projecting rate; The refractive index of PS microballoon is greater than the refractive index of PDMS film, and their interface goes out does not exist total reflection; Although the interface that PS microballoon contacts with air exists total reflection, because PS microsphere surface is spheroform surface structure, light is not easy to be bound in PS microballoon.Visible, OLED of the present invention is compared traditional OLED and is had better light emission rate, and inventor, through practical test, finds that its luminescent lumen efficiency improves a lot really.
PS microballoon layer 1 also has scattering, increases the effect of lighting angle.For obtaining better light emission rate, and the consideration of cost and technique, the present embodiment PS microsphere diameter used is 5 μm.In other embodiments, can dispersion effect according to actual needs, the diameter of PS microballoon can be adjusted.The thickness of the PDMS film of the present embodiment is 3 μm, in other embodiments, can also select the preferential scope of 2 μm to 4 μm.
As shown in Figures 2 to 5, for the present embodiment to improve the manufacture method of the OLED of light emission rate by PS microballoon layer 1.
One, individual layer PS microballoon layer is prepared on a carrier sheet.
The present embodiment provides two kinds of methods preparing individual layer PS microballoon layer 1 on a carrier sheet, and described carrier-pellet 4 is glass carrier sheet or silicon chip, and the diameter of described PS microballoon is 5 μm.
The step of method one is:
1. first dissolve in ethanol by the PS microballoon raw material bought by the proportion of 1:2, PS microballoon is tentatively spread out, then instill in water by the mixed liquor of PS microballoon and ethanol, forming concentration is the suspension-turbid liquid of 5wt%, and wherein 5wt% refers to part by weight.Ultrasonic wave is used to process suspension-turbid liquid, further dispersion PS microballoon, obtained PS microballoon monodisperse particles suspension-turbid liquid.When using ultrasonic wave, rock simultaneously or stir suspension-turbid liquid.
The PS microballoon source that the present embodiment uses is the PS microballoon that Shanghai Du You praises the U.S. Du Ke scientific company production of scientific & technical corporation agency.It is the microballoon of main component that PS microballoon generally refers to a PS, but according to different needs, can allocate its microballoon with functional group to change the character of microballoon.The microballoon band carboxyl that embodiment uses, can have better hydrophilic nmature, better on substrate, form individual layer microballoon.
Can also comprise some additives in above-mentioned suspension-turbid liquid, as anticorrisive agent and nitrine are received, the composition of added additive and ratio formula, there is relevant use data explanation in the manufacturer of PS microballoon.
2. clean carrier-pellet, then carrier-pellet is placed on hydrophilic treated solution (hydrogen peroxide acid solution) the inside and soaks 10 minutes.
3. take out carrier-pellet, and put it to inside PS microballoon monodisperse particles suspension-turbid liquid soak 10 minutes.
4. carrier-pellet is taken out and horizontal positioned, drip on a carrier sheet by PS microballoon monodisperse particles suspension-turbid liquid, after dripping q.s, recycling dropper drips surfactant above, then the sol evenning machine of common compact is utilized to carry out getting rid of film, when getting rid of film, make carrier-pellet be in center, with the central rotation of carrier-pellet as far as possible, rotating speed 2000 turns, turn 30s, room temperature, super-clean environment.
5. after taking out, obtain arranging substantially neat ball, single PS microballoon layer, then naturally dry more than 3h.
The step of method two is:
Adopt on vertical deposition method carrier-pellet and prepare single PS microballoon layer.
1. identical with step one described in said method one, make the PS microballoon monodisperse particles suspension-turbid liquid that concentration is 5wt%.
2. carrier-pellet 4 is cleaned and is carried out hydrophilic treated, carrier-pellet is immersed in 5min in the acid solution of hydrogen peroxide, then takes out and dries or dry, or use plasma treatment.
3. carrier-pellet 4 is put into culture dish, add water in culture dish, it is good that the water surface just covered carrier-pellet, subsequently PS microballoon monodisperse particles is suspended drop and forms individual layer PS microballoon layer 1 in the surface of water.
4. finally adopt vertical deposition method, carrier-pellet is gently pulled out from solution, be placed on level place after taking out and naturally dry, room temperature, super-clean environment.
In above two kinds of methods, on the general carrier sheet cover glass substrate of cleaning, (about 1.8cm × 1.8cm) makes individual layer PS microballoon layer, and this layer of PS microballoon can not have very strong adhesion with carrier-pellet, easily peels off and shifts.
Two, on the exiting surface of OLED element, PDMS film is made.
PDMS selected by the present embodiment is produced by Dow corning company, and model is SYLGARD184.The bi-component external member product that DOW CORNING SYLGARD184 silicon rubber is made up of liquid component, comprises solvent and curing agent.Solvent mixes by 10:1 weight ratio completely with curing agent, and the denseness of medium-viscosity mixed liquor is similar to SAE40 machine oil.No matter thickness, mixed liquor has the transparent elastomer of toughness by being solidified into.Its concrete steps are:
The mixing of 1.PDMS prepolymer and curing agent:
Prepolymer and curing agent are mixed in the ratio of 10:1.
2. vacuum degassing:
PDMS mixture is placed 30 minutes under 3kPa ~ 5kPa vacuum environment, to remove the bubble of wrapped folder.
3. spin coating:
A) OLED element be fixed on the vacuum cup of vacuum spin coater, upwards, level guaranteed by usage level instrument to exiting surface.Then be poured on exiting surface by PDMS mixture, this process need is careful, prevents air from entering impact effect.Open spin coater spin coating.
B) use 2000 rotating speed spin coating 30s, dissolution homogeneity is coated on the exiting surface of OLED element.After stopping, needling some larger naked eyes with needle point can observable bubble, and then 2000 spin coating 10s at high speed, completes whole spin coating process.
The rotating speed of spin coater can affect the thickness of film, so we carry out masking by choosing different rotary rpm, under studying same template by contrast experiment, thickness is on the impact of the light emission rate of raising device.Use step instrument test thickness, adjustment rotating speed controls thickness.
Control thickness in the present embodiment between 2 μm to 4 microns, the best is 3 μm.
4. solidify:
Spin coating there is the OLED element 3 of PDMS mixture to be placed in normal temperature environment, ultra-clean space, solidify 2 hours, take out.
Three, individual layer PS microballoon layer is transferred on PDMS film.
The OLED element 3 of PDMS film 2 surface that is placed on gently spin coating is had to have on the carrier-pellet 4 of individual layer PS microballoon layer 1, carrier-pellet 4 has the one side of PS microballoon layer 1 upwards, OLED element 3 has one of PDMS film 2 and faces down, and allows PDMS film 2 fit with PS microballoon layer 1 and to adhere to each other.Keep environment not have impurity dust in process, will ensure level when putting, unavailable any object is pressed onto above device and applies pressure.Then the above-mentioned structure level that fits together is positioned over room temperature environment, naturally dries solidification, curing time, 2h, completed impression.
Wait for that PDMS mixture solidified is to certain hardness, peels off carrier-pellet.During stripping, note whether its face is stained with PDMS film, and define and comparatively firmly adhere to, if attachment is too firm, suitably can reduce the time (as solidification 2h becomes 1h) of impression Post RDBMS.
Because PS microballoon and PDMS film have good intersolubility, can produce and slightly dissolve each other, and PDMS film is flexible after their laminatings, in the process that PS microballoon and PDMS film are fitted, be stressed impact, and PS microballoon can embed in PDMS film under the impact of above factor.After PS microballoon embeds PDMS film, the better effects if of its optical coupling.
The present invention has the following advantages:
1. the device luminescent lumen efficiency prepared by improves a lot than traditional device.And to the light intensity viewing angle distribution of OLED luminescence, have some improvement.
2. device improvements does not relate to the change of device inside structure with material, therefore can not produce the problem of some the unknowns and impact with stability the efficiency of device.
3. the method for Chemical self-assembly, the PS microballoon technique preparing individual layer is simple, and step is few, does not need valuable instrument and equipment, such as exposure machine, mask aligner etc.
4. prepare microballoon inexpensive with the material price of PDMS film, consumption is also little, so the device preparation cost improved is very low, is very applicable to industrialization.
5. the device stability of preparation is good, and because PDMS (dimethyl silicone polymer) is fine with the chemical stability of PS (polystyrene), both intersolubilities are good, and PS microballoon is not easy to come off.And the PDMS film formed is water insoluble, not oxidizable, and good elasticity is had to cause the reduction of device efficiency with there being certain mechanical strength can prevent the outside damage to its surface.
6. the environment great majority that prepared by improvement device are under the environment of room temperature, and do not need low temperature to follow the environment of high temperature, this also greatly reduces the cost of preparation.
7.PDMS is respectively 1.48 with 1.59 with the refractive index of PS, with glass substrate comparison match, total reflection can not be caused to increase.
The large I of 8.PS microballoon adjusts as required, so the dispersion effect of PDMS also can adjust as required, to reach the luminous efficiency of needs with angular distribution.
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (5)
1. manufacture a manufacture method for the OLED being improved light emission rate by PS microballoon layer, it is characterized in that, comprise the following steps:
Step one, in the plane of carrier-pellet, make one deck PS microballoon layer, described PS microballoon layer is the single layer structure be made up of PS arrangement of microspheres;
Step 2, on the exiting surface of OLED element, make one deck PDMS film;
Step 3, one side one side carrier-pellet with PS microballoon layer and OLED element with PDMS film to be fitted, and under being placed horizontally at room temperature environment, it is little of 3 hours to dry solidification 1;
Step 4, carrier-pellet to be taken off from OLED element, PS microballoon layer is peeled off from carrier-pellet and bonds with PDMS film.
2. according to manufacture method according to claim 1, it is characterized in that, in described step one, the method making PS microballoon layer is:
S1, PS microballoon raw material to be dissolved in ethanol, then by the mixed liquor instillation water of PS microballoon and ethanol, make the suspension-turbid liquid that concentration is 5wt%;
S2, cleaning carrier-pellet, be then placed on carrier-pellet inside hydrophilic treated solution and soak 10 minutes;
S3, take out carrier-pellet, and put it to inside PS microballoon suspension-turbid liquid soak 10 minutes;
S4, drop on the carrier-pellet of horizontal positioned by PS microballoon suspension-turbid liquid, then utilize the sol evenning machine of common compact at room temperature and carry out under dustfree environment getting rid of film, rotating speed 2000 rpms, turns 30s;
S5, by carrier-pellet take out, horizontal positioned, dries more than 3h naturally.
3. according to manufacture method according to claim 1, it is characterized in that, in described step one, the method making PS microballoon layer is:
S1, PS microballoon raw material to be dissolved in ethanol, then by the mixed liquor instillation water of PS microballoon and ethanol, make the suspension-turbid liquid that concentration is 5wt%;
S2, clean carrier-pellet, carrier-pellet is immersed in 5min in the acid solution of hydrogen peroxide, then take out and dry, to dry or by plasma treatment;
S3, carrier-pellet is put into culture dish, add water in culture dish, the water surface just covered carrier-pellet, subsequently PS microballoon was suspended drop and formed individual layer PS microballoon layer in the surface of water;
S4, employing vertical deposition method, gently pull out carrier-pellet, be placed on level place and naturally dry, room temperature, super-clean environment after taking out from solution.
4. according to manufacture method according to claim 1, it is characterized in that, in described step 2, the method making PDMS film is:
The prepolymer of S1, PDMS and curing agent mix in the ratio of 10:1, are then positioned over lower 30 minutes of the vacuum environment of 3 ~ 5kPa, to remove the bubble of wrapped folder;
S2, OLED element be fixed on the vacuum cup of vacuum spin coater, upwards, level guaranteed by usage level instrument to exiting surface, is then poured on exiting surface by PDMS mixture, opens spin coater spin coating, rotating speed 2000 rpms, turns 30 seconds;
S3, taking-up OLED element, have spin coating the OLED element of PDMS mixture to be placed in normal temperature environment, dustless space, solidify 2 hours.
5. according to manufacture method according to claim 1, it is characterized in that: in described step 3, one side level carrier-pellet with PS microballoon layer is upwards placed, and OLED element has one of PDMS film and faces down and to close with PS microballoon laminating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210309051.3A CN102832350B (en) | 2012-08-27 | 2012-08-27 | OLED and the manufacture method thereof of light emission rate is improved by PS microballoon layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210309051.3A CN102832350B (en) | 2012-08-27 | 2012-08-27 | OLED and the manufacture method thereof of light emission rate is improved by PS microballoon layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102832350A CN102832350A (en) | 2012-12-19 |
| CN102832350B true CN102832350B (en) | 2015-12-02 |
Family
ID=47335392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210309051.3A Expired - Fee Related CN102832350B (en) | 2012-08-27 | 2012-08-27 | OLED and the manufacture method thereof of light emission rate is improved by PS microballoon layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102832350B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226198A (en) * | 2015-10-13 | 2016-01-06 | 京东方科技集团股份有限公司 | A kind of waterproof transmission increasing flexible OLED devices device and preparation method thereof |
| CN105731366A (en) * | 2016-04-18 | 2016-07-06 | 南京师范大学 | Method for preparing ultrathin super resolution film based on dielectric microsphere |
| CN106495090A (en) * | 2016-11-24 | 2017-03-15 | 天津城建大学 | The method that conical fiber surface prepares colloid monolayer spherical array array structure |
| CN112490016B (en) * | 2020-10-13 | 2022-07-12 | 江汉大学 | Nano composite material and preparation method and application thereof |
| KR20220082982A (en) * | 2020-12-10 | 2022-06-20 | 삼성디스플레이 주식회사 | Display device and method of manufacturing the same |
| CN116041764A (en) * | 2023-03-01 | 2023-05-02 | 吉林大学 | Recyclable light extraction film for organic electroluminescent device, preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000231985A (en) * | 1999-02-12 | 2000-08-22 | Denso Corp | Organic electroluminescence element |
| CN1874012A (en) * | 2005-06-03 | 2006-12-06 | 北京大学 | High-luminance chip of luminescent tube in GaN base, and preparation method |
| CN202817033U (en) * | 2012-08-27 | 2013-03-20 | 华南理工大学 | OLED device capable of improving the light-out rate by using PS microsphere layer |
-
2012
- 2012-08-27 CN CN201210309051.3A patent/CN102832350B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000231985A (en) * | 1999-02-12 | 2000-08-22 | Denso Corp | Organic electroluminescence element |
| CN1874012A (en) * | 2005-06-03 | 2006-12-06 | 北京大学 | High-luminance chip of luminescent tube in GaN base, and preparation method |
| CN202817033U (en) * | 2012-08-27 | 2013-03-20 | 华南理工大学 | OLED device capable of improving the light-out rate by using PS microsphere layer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102832350A (en) | 2012-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102832350B (en) | OLED and the manufacture method thereof of light emission rate is improved by PS microballoon layer | |
| US11365347B2 (en) | Method for preparation of perovskite quantum dot (PQD)/polymer/ceramic ternary complex | |
| CN103275321B (en) | Preparation method and application of organosilicon photo-diffusion particle | |
| CN102201538A (en) | Substrate for flexible photoelectronic device and preparation method thereof | |
| CN101034687A (en) | Base board for flexible optoelectronic part and its making method | |
| CN104898189B (en) | Adopt fog-proof lens and the process thereof of dopamine as surface binded layer | |
| CN102201549A (en) | Substrate for flexible light emitting device and fabrication method thereof | |
| CN108346481B (en) | A kind of preparation method of high flexibility metal nanometer line transparent conductive composite films | |
| CN102237475A (en) | LED wafer level fluorescent powder coating technology based on organic colloid | |
| CN103531720A (en) | Electroluminescent device with high light emitting efficiency | |
| CN111593492B (en) | Method for preparing liquid crystal display backlight film based on high-strength nanofiber film | |
| TW201234618A (en) | Process for particle doping of scattering superstrates | |
| CN102208547A (en) | Substrate for flexible photoelectronic device and preparation method thereof | |
| CN202817033U (en) | OLED device capable of improving the light-out rate by using PS microsphere layer | |
| CN106680915A (en) | Composite brightening film applied to backlight module and backlight module | |
| CN105940519A (en) | Method for manufacturing substrate, substrate, method for manufacturing organic electroluminescence device, and organic electroluminescence device | |
| CN105957974A (en) | Organic light-emitting diode device and display device | |
| CN106098963B (en) | Optical thin film and preparation method thereof with random pyramid pattern matte | |
| CN105242431B (en) | With the touch control display apparatus of resistive formation and preparation method thereof for eliminating electrostatic | |
| CN102208569B (en) | Substrate for flexible luminescent device and preparation method thereof | |
| CN103275617B (en) | The preparation method of organosilicon photo-diffusion particle and application thereof | |
| CN109524567A (en) | A method of light is prepared based on spraying process and takes out lenticule promotion Dual Implantations type light emitting diode light extraction efficiency | |
| CN114773754B (en) | Polyvinyl alcohol-fluorenyl nano-sheet composite film and preparation method thereof | |
| CN108516698A (en) | A kind of silicon dioxide film and preparation method thereof | |
| CN206892502U (en) | A kind of super-hydrophobic quantum dot film of high scattering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20210827 |