CN110504377A - A kind of organic light emitting display and preparation method thereof and display panel - Google Patents
A kind of organic light emitting display and preparation method thereof and display panel Download PDFInfo
- Publication number
- CN110504377A CN110504377A CN201910779246.6A CN201910779246A CN110504377A CN 110504377 A CN110504377 A CN 110504377A CN 201910779246 A CN201910779246 A CN 201910779246A CN 110504377 A CN110504377 A CN 110504377A
- Authority
- CN
- China
- Prior art keywords
- layer
- light
- energy
- light conversion
- organic
- 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.)
- Granted
Links
Classifications
-
- 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
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The embodiment of the invention provides a kind of organic light emitting display and preparation method thereof and display panel, solves technical problem short using the service life of the display screen of thin film encapsulation technology in the prior art.A kind of organic light emitting display provided by the invention, comprising: luminescent layer；The encapsulated layer of the luminescent layer side is set；And, light conversion radiating layer between the luminescent layer and the encapsulated layer is set, UV light is converted into other kinds of light, then the energy of UV light is radiate in the form of other type light, when carrying out the irradiation solidification of UV light to ink after the film layer of encapsulated layer inkjet printing, damage of the UV light to the organic layer material in luminescent layer is avoided, and UV cure times can be extended, curing degree is improved, thus the service life of prolonged display part.
Description
Technical field
The present invention relates to field of display technology, and in particular to a kind of organic light emitting display and preparation method thereof and aobvious
Show panel.
Background technique
With the development of flexible display screen, thin-film package has become mainstream technology, but uses thin film encapsulation technology
Display screen service life it is short.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of organic light emitting display and preparation method thereof and display surfaces
Plate solves technical problem short using the service life of the display screen of thin film encapsulation technology in the prior art.
For the purpose of the present invention, technological means and advantage is more clearly understood, below in conjunction with attached drawing to the present invention make into
One step is described in detail.Obviously, the described embodiments are only a part but not all of the embodiments of the present application.Base
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall in the protection scope of this application.
According to an aspect of the present invention, one embodiment of the invention provides a kind of organic light emitting display, comprising: hair
Photosphere；The encapsulated layer of the luminescent layer side is set；And the light being arranged between the luminescent layer and the encapsulated layer turns
Change radiating layer, for converting uv light into the first type light.
In an embodiment of the present invention, light conversion radiating layer include composite/laminate structure and/or with the composite layer
At least one layer of doped layer that stack structure is stacked；Wherein, the composite/laminate structure includes being stacked: at least one layer of the
One light energy reduces layer, is converted into the second energy for absorbing the first energy of the ultraviolet light, and by first energy,
Described in the second energy be less than first energy；And at least one layer of light conversion layer, for absorbing second energy, and
Second energy is discharged in the form of the first type light；Wherein, at least one layer of light conversion layer setting is described in at least one layer
First light energy reduces side of the layer far from the encapsulated layer；The doped layer includes: that the second light energy reduces layer, for absorbing
The third energy of the ultraviolet light, and the 4th energy is converted by the third energy, wherein the 4th energy is less than described
Third energy；And it is entrained in the light conversion material in the second light energy reduction layer, the light conversion material is for absorbing
Second energy, and the 4th energy is discharged in the form of the first type light.
In an embodiment of the present invention, the composite/laminate structure includes the first luminous energy of at least one layer being cascading
Amount reduces layer and at least one layer of light conversion layer.
In an embodiment of the present invention, the composite/laminate structure includes that at least two layers first light energies reduce layers and at least
One layer of light conversion layer, the light conversion layer are folded in first light energy and reduce between layer.
In an embodiment of the present invention, the material that first light energy reduces layer includes that singlet splits a point material；It is described
The material of light conversion layer includes phosphor material.
In an embodiment of the present invention, the light conversion radiating layer includes at least one layer of doped layer, and the doped layer includes:
Second light energy reduces layer, is converted into the 4th energy for absorbing the third energy of the ultraviolet light, and by the third energy,
Wherein the 4th energy is less than the third energy；And it is entrained in the light conversion material in the second light energy reduction layer
Material, the light conversion material are discharged the 4th energy for absorbing second energy in the form of the first type light.
In an embodiment of the present invention, the material that second light energy reduces layer includes that singlet splits a point material；It is described
The material of light conversion material includes phosphor material.
In an embodiment of the present invention, it is 350nm~420nm that the singlet, which splits the absorption peak of point material,；And/or institute
Glow peak of the phosphor material after absorbing energy is stated greater than 700nm.
In an embodiment of the present invention, the first type light includes near infrared light, wherein the singlet splits a point material
For pentaphene or the mixture of rubrene or pentaphene and rubrene；And/or the phosphor material includes near-infrared phosphorescence material
Material, the near-infrared phosphor material are selected from one or more of following material combination: iridium metal complex, platinum cooperation
Object and gold complex.
As a second aspect of the invention, one embodiment of the invention additionally provides a kind of preparation of organic light emitting display
Method, comprising: prepare luminescent layer；Light conversion radiating layer is prepared in the side of the luminescent layer；And it converts and radiates in the light
Layer prepares encapsulated layer far from the luminescent layer side；Wherein, the encapsulated layer includes organic layer, and described convert in the light radiates
It includes: to spray in light conversion radiating layer far from the side of the luminescent layer that layer, which prepares encapsulated layer far from the luminescent layer side,
Organic material；And using ultraviolet light to the organic material for being sprayed on light conversion side of the radiating layer far from the luminescent layer
Material is irradiated, and forms organic layer.
As the third aspect of the present invention, one embodiment of the invention additionally provides a kind of display panel, including aforementioned described
Organic light emitting display.
Organic light emitting display provided in an embodiment of the present invention, by the way that one layer of light is arranged between encapsulated layer and luminescent layer
Radiating layer is converted, UV light is converted into other kinds of light, is then given off the energy of UV light in the form of other type light
It goes, when carrying out the irradiation solidification of UV light to ink after the film layer of encapsulated layer inkjet printing, avoids UV light in luminescent layer
The damage of organic layer material, and UV cure times can be extended, curing degree is improved, thus the service life of prolonged display part.
Detailed description of the invention
Fig. 1 show a kind of structural schematic diagram of organic light emitting display of one embodiment of the invention offer；
Fig. 2 show another embodiment of the present invention provides a kind of organic light emitting display structural schematic diagram；
Fig. 3 show another embodiment of the present invention provides a kind of organic light emitting display structural schematic diagram；
Fig. 4 show another embodiment of the present invention provides a kind of organic light emitting display structural schematic diagram；
Fig. 5 show another embodiment of the present invention provides a kind of organic light emitting display structural schematic diagram；
Fig. 6 show another embodiment of the present invention provides a kind of organic light emitting display structural schematic diagram；
Fig. 7 show another embodiment of the present invention provides a kind of organic light emitting display structural schematic diagram；
Fig. 8 show another embodiment of the present invention provides a kind of organic light emitting display structural schematic diagram.
Specific embodiment
As described in background, the service life in the prior art using the display screen of thin film encapsulation technology is short, invention
People needs the study found that there is film layer that the reason of this problem is in thin-film package using after inkjet printing organic material
Ultraviolet light (hereinafter referred to as UV light) solidification, but when the organic material in the encapsulation of UV photocured film, UV light is easy to damage
The organic material (such as luminous organic material in luminescent layer) of film layer below encapsulated layer contracts so as to cause the service life of display device
It is short.And in order to reduce UV light to the damage below packaging film, industry is often using the time for reducing UV photocuring, still
The reduction of the time of UV photocuring will lead to the reduction of curing degree again, and curing degree reduces so that between film layer in packaging film
Adhesive force reduces, to increase the probability that film layer falls off, reduces the service life of display device.
Based on this, the present invention provides a kind of organic light emitting displays, are applied in organic light emitting display panel, pass through
One layer of light is set between encapsulated layer and luminescent layer and converts radiating layer, UV light is converted into other kinds of light, then with other
The energy of UV light is radiate by the form of type light, carries out UV light irradiation to ink after the film layer inkjet printing of encapsulated layer
When solidification, damage of the UV light to the organic layer material in luminescent layer is avoided, and UV cure times can be extended, improves solidification
Rate, thus the service life of prolonged display part.
Specifically, a kind of organic light emitting display provided by the invention, comprising: luminescent layer；It is arranged in the luminescent layer
The encapsulated layer of side；And the light conversion radiating layer between the luminescent layer and the encapsulated layer is set, it is used for ultraviolet light
It is converted into the first type light.
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 the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Fig. 1 show a kind of structural schematic diagram of organic light emitting display of one embodiment of the invention offer, such as Fig. 1 institute
Show, organic light emitting display include: luminescent layer 1, the encapsulated layer 3 that 1 side of luminescent layer is set and setting luminescent layer 1 with
Light between encapsulated layer 3 converts radiating layer 2, and wherein light conversion radiating layer 2 is for converting uv light into the first type light, then
The energy of script UV light is radiate in the form of its first type light, to oil after the film layer inkjet printing of encapsulated layer 3
When ink carries out the irradiation solidification of UV light, damage of the UV light to the organic layer material in luminescent layer 1 is avoided, and it is solid to extend UV light
Change the time, curing degree is improved, thus the service life of prolonged display part.
In an embodiment of the present invention, light conversion radiating layer 2 includes composite/laminate structure 21, wherein composite/laminate structure 21
Layer 211 and at least one layer of light conversion layer 212 are reduced including being stacked at least one layer of first light energy.Wherein the first light energy
The first energy that layer 211 is used to absorb the ultraviolet light is reduced, and converts the second energy for the first energy, wherein the second energy
Less than the first energy；Light conversion layer 212 is discharged the second energy for absorbing the second energy in the form of the first type light；
Wherein, at least one layer of first light energy, which is arranged in, at least one layer of light conversion layer 212 reduces side of the layer 211 far from encapsulated layer 3, such as
Shown in Fig. 2-Fig. 7.
In a further embodiment of the invention, composite/laminate structure 21 may include at least one to be cascading
The first light energy of layer reduces layer 211 and at least one layer of light conversion layer 212.In this case, composite/laminate structure 21 can be as
Situation shown in Fig. 2, i.e. organic light emitting display include luminescent layer 1, and the light conversion layer of 1 side of luminescent layer is arranged in
212, light conversion layer 212, which is arranged in, to be reduced layer 211 far from the first light energy of 1 side of luminescent layer and is arranged in the first light energy
Reduce encapsulated layer 3 of the layer 211 far from 212 side of light conversion layer.The acceptable situation as shown in Figure 3 of composite/laminate structure 21, i.e.,
Having excitation light display device includes luminescent layer 1, and is successively set on the light conversion layer 212 of 1 side of luminescent layer, the first light energy
Reducing layer 211, light conversion layer 212, the first light energy reduces layer 211 and encapsulated layer 3.
Being arranged alternately for layer 211 and light conversion layer 212, the film layer structure in encapsulated layer 3 are reduced by the first light energy
When carrying out the irradiation of UV light after inkjet printing coats, absorbed simultaneously firstly, the first energy of UV light reduces layer by the first light energy
The second energy is converted by the first energy, wherein the second energy is less than the first energy.Then the second energy is inhaled by light conversion layer 212
It receives and radiate the second energy in the form of second species light, avoid UV light to the organic layer material in luminescent layer 1
Damage, and UV cure times can be extended, curing degree is improved, thus the service life of prolonged display part.And the first light energy
When reducing layer 211 and more number of plies of light conversion layer 212 being arranged alternately, UV light can further be kept away by multiple conversion radiation
Exempt from damage of the UV light to the organic layer material in luminescent layer 1, UV cure times may further be extended, improves curing degree,
The service life of further prolonged display part.
It should be appreciated that being set when the first light energy in light conversion radiating layer 2 reduces layer 211 with replacing for light conversion layer 212
When setting, the first light energy that light conversion radiating layer 2 includes reduces layer 211 and the number of plies of light conversion layer 212 can be according to reality
Using being designed, such as can be as shown in Fig. 2, can also be as shown in Figure 3.Therefore, as long as the first energy per quilt of UV light
First light energy reduces after layer 211 is converted into the second energy, has corresponding light conversion layer 212 to absorb the second energy and by second
Energy is gone out with the light radiation of the first type.The first light energy that the embodiment of the present invention includes for light conversion radiating layer 2
The number of plies for reducing layer 211 and light conversion layer 212 is not construed as limiting.
In addition, when the first light energy in light conversion radiating layer 2 reduces layer 211 and when being arranged alternately of light conversion layer 212,
Although the first light energy that light conversion radiating layer 2 includes reduces layer 211 and the number of plies of light conversion layer 212 is more, for UV light
Conversion and radiation be more obvious, can more protect the luminous organic material in luminescent layer 1 not by UV light injury, also more can be improved
Film layer curing degree in encapsulated layer 3, more can be improved the service life of display device, it is contemplated that the thickness of whole display part,
Therefore, the first light energy that light conversion radiating layer 2 includes reduces layer 211 and is no more than three layers, and the number of plies of light conversion layer 212 does not also surpass
Cross three layers.
In another further embodiment of the present invention, composite/laminate structure 21 may include at least two layers of first light energies
Reduce layer 211 and at least one layer of light conversion layer 212, wherein light conversion layer 212 be folded in the first light energy reduce layer 211 it
Between.In this case, the structure of composite/laminate structure 21 can be as shown in figure 4, having organic light emitting display includes: hair
Photosphere 1, the first light energy for being successively set on 1 side of luminescent layer reduce layer 211, light conversion layer 212, the first light energy reduction layer
211 and encapsulated layer 3.It is first when the organic film structure in encapsulated layer 3 carries out the irradiation of UV light after inkjet printing coats
First, the first energy of UV light reduces layer absorption by the first light energy and converts the second energy for the first energy, wherein the second energy
Amount is less than the first energy.Then the second energy absorbed by light conversion layer 212 and by the second energy in the form of second species light spoke
It is shot out, the first energy of the UV light not then being converted completely can also reduce layer 211 by the first light energy again and convert
For the second energy, damage of the UV light to the organic layer material in luminescent layer 1 is further avoided, it is solid that UV light may further be extended
Change the time, improves curing degree, the service life of further prolonged display part.
In another further embodiment of the present invention, composite/laminate structure 21 may include at least one layer of first light energy
Reduce layer 211 and at least two layers of light conversion layer 212, wherein the first light energy reduction layer 211 be folded in light conversion layer 212 it
Between.In this case, the structure of composite/laminate structure 21 can be as shown in figure 5, having organic light emitting display includes: hair
Photosphere 1, the light conversion layer 212 for being successively set on 1 side of luminescent layer, the first light energy reduce layer 211, light conversion layer 212 and
Encapsulated layer 3.When the film layer structure in encapsulated layer 3 carries out the irradiation of UV light after inkjet printing coats, firstly, the first of UV light
Energy reduces layer absorption by the first light energy and converts the second energy for the first energy, wherein the second energy is less than the first energy
Amount.Then the second energy is absorbed and radiate the second energy in the form of second species light by light conversion layer 212, is avoided
Damage of the UV light to the organic layer material in luminescent layer 1 may further extend UV cure times, curing degree be improved, into one
Walk the service life of prolonged display part.
It should be appreciated that light conversion radiating layer 2 described above has composite/laminate structure 21, wherein composite/laminate structure 21
In when including that first light energy of at least one layer that is stacked reduces layer 211 and at least one layer light conversion layer 212, composite laminate
The various overlapped ways of structure 21, but the embodiment of the present invention is not limited to this, as long as at least one in composite/laminate structure 21
At least one layer of first light energy, which is arranged in, in layer light conversion layer 212 reduces side of the layer 211 far from encapsulated layer 3, enables to UV light
The first energy reduced after layer 211 is converted into the second energy by the first light energy for the first time, can be absorbed by light conversion layer 212
And it is radiate in the form of the first type light, the embodiment of the present invention converts the light with composite/laminate structure 21
The first light energy that radiating layer 2 includes reduces the number of plies of layer 211 and light conversion layer 212 and the first light energy reduce layer 211 with
The mode of light conversion layer 212 being stacked is not construed as limiting.
In an alternative embodiment of the invention, light conversion radiating layer 2 includes at least one layer of doped layer 23, and doped layer 23 includes the
The light conversion material 232 that two light energies reduce layer 231 and are entrained in the second light energy reduction layer 231.Wherein, the second luminous energy
Amount reduces layer 231 and is used to convert the second energy for the first energy of ultraviolet light, wherein the second energy is less than the first energy；Light turns
Change material 232 for absorbing the second energy and radiateing the second energy in the form of the first type light.Such as Fig. 6 or Fig. 7 institute
Show.When converting light into material 232 and being entrained in the second light energy and reduce layer 231, increases the second light energy and reduce layer 231 and light and turn
The contact area for changing material 232, it is first when the film layer structure in encapsulated layer 3 carries out the irradiation of UV light after inkjet printing coats
First, the first energy of UV light reduces layer absorption by the first light energy and converts the second energy for the first energy, wherein the second energy
Amount is less than the first energy.Then the second energy absorbed by light conversion layer 212 and by the second energy in the form of second species light spoke
It is shot out, more avoids damage of the UV light to the organic layer material in luminescent layer 1, more extend UV cure times, mention
High solidification rate, the service life of further prolonged display part.
Although can further be avoided it should be appreciated that the number of plies for the doped layer 23 that light conversion radiating layer 2 includes is more
Luminous organic material in luminescent layer 1 further increases the service life of display device, but light converts radiating layer 2 by UV light injury
Including the number of plies of doped layer 23 can be designed according to practical situations, situation that can be as shown in Figure 6 can also be such as figure
Situation shown in 7.The embodiment of the present invention is not construed as limiting the number of plies for the doped layer 23 that light conversion radiating layer 2 includes.
In a further embodiment of the invention, light conversion material 232, which is evenly distributed on the second light energy, reduces layer 231
In.Comprehensively the energy for reducing the ultraviolet after layer 231 converts by the second light energy can be radiate.
In an embodiment of the present invention, light conversion radiating layer 2 not only can as it is aforementioned it is described only include composite laminate knot
Structure 21 only includes doped layer 23.It can also both include composite/laminate structure 21, and further include doped layer 23, wherein composite laminate knot
Structure 21 is stacked with doped layer 23.As shown in Figure 8.
In an embodiment of the present invention, the first light energy, which reduces layer 211 and the second light energy, reduces the material packet of layer 231
It includes singlet and splits a point material, the material of light conversion layer 212 and light conversion material 232 includes phosphor material.Singlet is split point
(Single Fission) material is a kind of special organic material, and this kind of singlet exciton can be made with the ground state of periphery molecule
With, thus be converted into two triplet excitons, i.e. transformation of the one high energy singlet of realization to two low energy triplet states.And phosphorescence
The triplet state that phosphorescent metal complex in material can be such that transition prohibits by heavy metal effect works as encapsulation by radioluminescence
When film layer structure in layer 3 carries out the irradiation of UV light after inkjet printing coats, when the film layer structure in encapsulated layer 3 passes through ink-jet
When carrying out the irradiation of UV light after printing coating, the first light energy reduction layer 211 or the second light energy reduce the singlet in layer 231
It splits after point material absorbs UV light, singlet, which splits a singlet exciton being divided in material and splits to be divided into singlet and split, is divided to two of material
Triplet excitons, then singlet splits the energy of the triplet excitons in point material by light conversion layer 212 or light conversion material
Phosphor material in 232 absorbs and is converted into the triplet excitons of phosphor material, then in the triplet excitons of phosphor material
Energy is discharged in the form of phosphorescence, so that successfully phosphorescence is converted by UV light, so as to avoid UV light to having in luminescent layer 1
The damage of machine layer material, and UV cure times can be extended, curing degree is improved, thus the service life of prolonged display part.
In a further embodiment of the invention, the first type light includes near infrared light, and it is five that singlet, which splits point material,
The mixture of benzene or rubrene or pentaphene and rubrene；And/or phosphor material is selected from near-infrared phosphor material, near-infrared
Phosphor material is selected from one or more of following material combination: iridium metal complex, platinum metal complex and gold complex.
Singlet in the embodiment of the present invention splits point material and near-infrared phosphor material, can convert uv light near infrared light,
The energy of ultraviolet light is radiate in the form of near infrared light.
In an another further embodiment of the present invention, singlet split point material absorption peak be 350nm~420nm it
Between, 700nm can be greater than when UV splits glow peak after point material and phosphor material convert by singlet, therefore can avoid can
Light-exposed area, to will not be had an impact to the photochromic of display device.Preferably, it is 390nm that singlet, which splits the absorption peak of point material,.
In an another further embodiment of the present invention, the glow peak after absorbing energy is greater than 700nm, therefore can
Visible region is avoided, to will not have an impact to the photochromic of display device.
It should be appreciated that no matter singlet splits the material of point material and phosphor material how to select can be according to difference first
The martyr of type light are different and select, as long as glow peak after UV splits point material and phosphor material conversion by singlet is greater than
780nm can avoid visible region, and the embodiment of the present invention is for no matter singlet splits point material and near-infrared phosphorescence material
The specific type of material is not construed as limiting.
The embodiment of the invention also provides a kind of preparation methods of organic light emitting display, comprising:
S101: luminescent layer is prepared；
S102: light conversion radiating layer is prepared in the side of luminescent layer；
S103: encapsulated layer is prepared far from luminescent layer side in light conversion radiating layer；
Wherein, encapsulated layer includes organic layer, and step S103 is specifically included:
S1031: organic material is sprayed far from the side of luminescent layer in light conversion radiating layer；
S1032: the organic material for being sprayed on light conversion side of the radiating layer far from luminescent layer is shone using ultraviolet light
It penetrates, forms organic layer.
Step S1032 is actually to carry out ultraviolet light solidification to form organic layer, when to organic material to organic material
When carrying out ultraviolet light solidification, when ultraviolet light is irradiated to light conversion radiating layer, since light conversion radiating layer can turn ultraviolet light
Other type light are turned to, are then radiate the energy of ultraviolet light in the form of other type light, therefore, even if extending to envelope
The cure times of organic layer in dress layer will not cause too macrolesion to the organic material in luminescent layer.Therefore the present invention is real
Example is applied while reducing that ultraviolet light is to the damage of the organic material in luminescent layer in Light Curing as far as possible, additionally it is possible to extend
Curing time when carrying out photocuring to the organic material in encapsulated layer extends display device to improve curing degree
Service life.For example, during preparing organic light emitting display, without one layer of light of preparation between luminescent layer and encapsulated layer
Radiating layer is converted, when being formed with machine layer to the organic material progress ultraviolet light solidification in encapsulated layer, curing time 30s, Gu
Rate is 90%.During preparing organic light emitting display, one layer of light is prepared between luminescent layer and encapsulated layer and is turned
Change radiating layer, when being formed with machine layer to the organic material progress ultraviolet light solidification in encapsulated layer, curing time can be extended to
1min-2min, curing degree can be improved to 98% or more.
The embodiment of the invention also provides a kind of display panels, including the aforementioned organic light emitting display, this hair
The display panel that bright embodiment provides converts radiating layer by the way that one layer of light is arranged between encapsulated layer and luminescent layer, UV light is turned
It is changed to other kinds of light, is then radiate the energy of UV light in the form of other type light, when the film layer of encapsulated layer is used
When carrying out the irradiation solidification of UV light to ink after inkjet printing, damage of the UV light to the organic layer material in luminescent layer is avoided, and
UV cure times can be extended, curing degree is improved, thus the service life of prolonged display part.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, made any modification, equivalent replacement etc. should be included in the protection of the invention
Within the scope of.
Claims (10)
1. a kind of organic light emitting display characterized by comprising
Luminescent layer；
The encapsulated layer of the luminescent layer side is set；And
Light conversion radiating layer between the luminescent layer and the encapsulated layer is set, for converting uv light into the first type
Light.
2. display device according to claim 1, which is characterized in that the light conversion radiating layer includes composite laminate knot
Structure；And/or
At least one layer of doped layer being stacked with the composite/laminate structure；
Wherein, the composite/laminate structure includes being stacked:
At least one layer of first light energy reduces layer, turns for absorbing the first energy of the ultraviolet light, and by first energy
The second energy is turned to, wherein second energy is less than first energy；And
At least one layer of light conversion layer, for absorbing second energy, and by the second energy in the form of the first type light
Release；
Wherein, at least one layer of light conversion layer setting reduces layer far from the encapsulated layer at least one layer of first light energy
Side；
The doped layer includes:
Second light energy reduces layer, is converted into the 4th for absorbing the third energy of the ultraviolet light, and by the third energy
Energy, wherein the 4th energy is less than the third energy；And
The light conversion material being entrained in the second light energy reduction layer, the light conversion material is for absorbing second energy
Amount, and the 4th energy is discharged in the form of the first type light.
3. display device according to claim 2, which is characterized in that the composite/laminate structure includes being cascading
The first light energy of at least one layer reduce layer and at least one layer of light conversion layer.
4. display device according to claim 2, which is characterized in that the composite/laminate structure includes at least two layers first
Light energy reduces layer and at least one layer of light conversion layer, and the light conversion layer is folded in first light energy and reduces between layer.
5. display device according to claim 2, which is characterized in that the material that first light energy reduces layer includes single
Line state splits a point material；The material of the light conversion layer includes phosphor material.
6. display device according to claim 2, which is characterized in that the material that second light energy reduces layer includes single
Line state splits a point material；The material of the light conversion material includes phosphor material.
7. display device according to claim 6, which is characterized in that
The absorption peak that the singlet splits point material is 350nm~420nm；And/or
Glow peak of the phosphor material after absorbing energy is greater than 700nm.
8. display device according to claim 7, which is characterized in that the first type light includes near infrared light, wherein
The singlet splits the mixture that point material is pentaphene or rubrene or pentaphene and rubrene；And/or
The phosphor material includes near-infrared phosphor material, the near-infrared phosphor material be selected from one of following material or
Multiple combinations: iridium metal complex, platinum metal complex and gold complex.
9. a kind of preparation method of organic light emitting display characterized by comprising
Prepare luminescent layer；
Light conversion radiating layer is prepared in the side of the luminescent layer；And
Encapsulated layer is prepared far from the luminescent layer side in light conversion radiating layer；
Wherein, the encapsulated layer includes organic layer, and described prepare in light conversion radiating layer far from the luminescent layer side is sealed
Filling layer includes:
Organic material is sprayed far from the side of the luminescent layer in light conversion radiating layer；And
The organic material for being sprayed on light conversion side of the radiating layer far from the luminescent layer is irradiated using ultraviolet light,
Form organic layer.
10. a kind of display panel, which is characterized in that including any organic light emitting display of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779246.6A CN110504377B (en) | 2019-08-22 | 2019-08-22 | Organic light-emitting display device, preparation method thereof and display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779246.6A CN110504377B (en) | 2019-08-22 | 2019-08-22 | Organic light-emitting display device, preparation method thereof and display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110504377A true CN110504377A (en) | 2019-11-26 |
| CN110504377B CN110504377B (en) | 2022-03-29 |
Family
ID=68589002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910779246.6A Active CN110504377B (en) | 2019-08-22 | 2019-08-22 | Organic light-emitting display device, preparation method thereof and display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110504377B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129350A (en) * | 2019-12-26 | 2020-05-08 | Tcl华星光电技术有限公司 | Display panel and display panel manufacturing method |
| CN114369059A (en) * | 2022-01-06 | 2022-04-19 | 京东方科技集团股份有限公司 | Organic compound, preparation method thereof, display substrate and display device |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010043043A1 (en) * | 2000-01-07 | 2001-11-22 | Megumi Aoyama | Organic electroluminescent display panel and organic electroluminescent device used therefor |
| US20030020088A1 (en) * | 2001-07-13 | 2003-01-30 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting device and manufacturing method thereof |
| CN1980961A (en) * | 2004-01-07 | 2007-06-13 | 肯特治疗股份有限公司 | UV for ink jet printer |
| KR20110085206A (en) * | 2010-01-19 | 2011-07-27 | 일진반도체 주식회사 | White light emitting device and fabricating method thereof |
| CN104298057A (en) * | 2013-07-17 | 2015-01-21 | 海信集团有限公司 | Light source component and projector |
| CN104673308A (en) * | 2015-02-02 | 2015-06-03 | 江苏师范大学 | Material for realizing near-infrared luminescence under ultraviolet excitation and preparation method thereof |
| CN105400509A (en) * | 2015-12-10 | 2016-03-16 | 钦州学院 | A method of generating fluorescence and phosphorescence through near ultraviolet and visible light absorption by organic compounds |
| US20160190222A1 (en) * | 2014-11-17 | 2016-06-30 | Boe Technology Group Co., Ltd. | Array substrate and fabrication method thereof, and display device |
| CN106206636A (en) * | 2016-08-16 | 2016-12-07 | 京东方科技集团股份有限公司 | A kind of X-ray detection panel and preparation method thereof |
| US20170141318A1 (en) * | 2014-04-24 | 2017-05-18 | The Trustees Of Columbia University In The City Of New York | Molecular compositions, materials, and methods for efficient multiple excition generation |
| CN106772753A (en) * | 2015-11-25 | 2017-05-31 | 上海和辉光电有限公司 | Rotatory polarization piece and its organic light-emitting display device |
| CN108598278A (en) * | 2018-04-20 | 2018-09-28 | 武汉华星光电半导体显示技术有限公司 | Encapsulating structure of Organic Light Emitting Diode and preparation method thereof |
| CN109148709A (en) * | 2018-09-04 | 2019-01-04 | 合肥鑫晟光电科技有限公司 | A kind of electroluminescence display panel and display device |
| CN109713026A (en) * | 2019-02-26 | 2019-05-03 | 京东方科技集团股份有限公司 | A kind of silicon substrate electroluminescence display panel and its manufacturing method, display device |
| CN109844578A (en) * | 2016-10-04 | 2019-06-04 | 东丽株式会社 | Light source unit and the display and lighting device for using it |
| CN110048013A (en) * | 2019-03-04 | 2019-07-23 | 京东方科技集团股份有限公司 | Display substrate, display device and manufacturing method of display substrate |
| CN110115106A (en) * | 2016-12-28 | 2019-08-09 | Dic株式会社 | Light-emitting component and the image-displaying member for using it |
-
2019
- 2019-08-22 CN CN201910779246.6A patent/CN110504377B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010043043A1 (en) * | 2000-01-07 | 2001-11-22 | Megumi Aoyama | Organic electroluminescent display panel and organic electroluminescent device used therefor |
| US20030020088A1 (en) * | 2001-07-13 | 2003-01-30 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting device and manufacturing method thereof |
| CN1980961A (en) * | 2004-01-07 | 2007-06-13 | 肯特治疗股份有限公司 | UV for ink jet printer |
| KR20110085206A (en) * | 2010-01-19 | 2011-07-27 | 일진반도체 주식회사 | White light emitting device and fabricating method thereof |
| CN104298057A (en) * | 2013-07-17 | 2015-01-21 | 海信集团有限公司 | Light source component and projector |
| US20170141318A1 (en) * | 2014-04-24 | 2017-05-18 | The Trustees Of Columbia University In The City Of New York | Molecular compositions, materials, and methods for efficient multiple excition generation |
| US20160190222A1 (en) * | 2014-11-17 | 2016-06-30 | Boe Technology Group Co., Ltd. | Array substrate and fabrication method thereof, and display device |
| CN104673308A (en) * | 2015-02-02 | 2015-06-03 | 江苏师范大学 | Material for realizing near-infrared luminescence under ultraviolet excitation and preparation method thereof |
| CN106772753A (en) * | 2015-11-25 | 2017-05-31 | 上海和辉光电有限公司 | Rotatory polarization piece and its organic light-emitting display device |
| CN105400509A (en) * | 2015-12-10 | 2016-03-16 | 钦州学院 | A method of generating fluorescence and phosphorescence through near ultraviolet and visible light absorption by organic compounds |
| CN106206636A (en) * | 2016-08-16 | 2016-12-07 | 京东方科技集团股份有限公司 | A kind of X-ray detection panel and preparation method thereof |
| CN109844578A (en) * | 2016-10-04 | 2019-06-04 | 东丽株式会社 | Light source unit and the display and lighting device for using it |
| CN110115106A (en) * | 2016-12-28 | 2019-08-09 | Dic株式会社 | Light-emitting component and the image-displaying member for using it |
| CN108598278A (en) * | 2018-04-20 | 2018-09-28 | 武汉华星光电半导体显示技术有限公司 | Encapsulating structure of Organic Light Emitting Diode and preparation method thereof |
| CN109148709A (en) * | 2018-09-04 | 2019-01-04 | 合肥鑫晟光电科技有限公司 | A kind of electroluminescence display panel and display device |
| CN109713026A (en) * | 2019-02-26 | 2019-05-03 | 京东方科技集团股份有限公司 | A kind of silicon substrate electroluminescence display panel and its manufacturing method, display device |
| CN110048013A (en) * | 2019-03-04 | 2019-07-23 | 京东方科技集团股份有限公司 | Display substrate, display device and manufacturing method of display substrate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129350A (en) * | 2019-12-26 | 2020-05-08 | Tcl华星光电技术有限公司 | Display panel and display panel manufacturing method |
| CN111129350B (en) * | 2019-12-26 | 2022-07-12 | Tcl华星光电技术有限公司 | Display panel and display panel manufacturing method |
| CN114369059A (en) * | 2022-01-06 | 2022-04-19 | 京东方科技集团股份有限公司 | Organic compound, preparation method thereof, display substrate and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110504377B (en) | 2022-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110504377A (en) | A kind of organic light emitting display and preparation method thereof and display panel | |
| TW202415137A (en) | Light-emitting diodes with light coupling and conversion layers and methods of forming pixel | |
| KR101253586B1 (en) | Phosphor film, method of manufacturing the same, method of coating phosphor layer on an LED chip, method of manufacturing LED package and LED package manufactured thereof | |
| JP4539368B2 (en) | Manufacturing method of display device | |
| JP5226774B2 (en) | Light emitting device | |
| CN101291999B (en) | A jet ink and ink jet printing process | |
| TWI449760B (en) | Led phosphor ink composition for ink-jet printing | |
| TWI554540B (en) | A hardened composition for optical semiconductor encapsulation | |
| CN106526962A (en) | Light conversion membrane and preparation method thereof and display equipment | |
| CN104536078B (en) | A kind of dichroic filter enhancing fluorescence light guide plate and preparation method thereof | |
| WO2012075391A2 (en) | Solid-state light emitting devices and signage with photoluminescence wavelength conversion and photoluminescent compositions therefor | |
| KR20150110565A (en) | Quantum dot film | |
| CN107210346A (en) | Light conversion device and the display device including it | |
| CN101125475A (en) | UV solid luminous membrane and its preparing process | |
| CN1988188A (en) | Light emitting diode crystal particle with fluorescence layer structure and its producing method | |
| CN105348414A (en) | Method and composition used for realizing deep cationic photopolymerization | |
| JP2020172649A (en) | Ultraviolet curable resin composition, method for manufacturing light-emitting device and light-emitting device | |
| CN106661346A (en) | Uv-curable coating composition having improved sunlight stability | |
| US20180122974A1 (en) | Wavelength conversion polymer film | |
| CN104774564B (en) | Adhesive and light-emitting film layer structure | |
| CA2661287A1 (en) | Decorative laminate incorporating multi-colored photoluminescent material | |
| JP2020172648A (en) | Ultraviolet curable resin composition, method for manufacturing light-emitting device and light-emitting device | |
| CN104059421B (en) | Ultraviolet-curable coating composition and coating | |
| CN107526125A (en) | A kind of reflective storage light film of microballon exposed type colorful and its manufacturing process | |
| CN107210348B (en) | Light conversion film and light conversion element and display device including it |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |