CN106067516A - A kind of luminescent device and luminous display unit - Google Patents
A kind of luminescent device and luminous display unit Download PDFInfo
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- CN106067516A CN106067516A CN201610515533.2A CN201610515533A CN106067516A CN 106067516 A CN106067516 A CN 106067516A CN 201610515533 A CN201610515533 A CN 201610515533A CN 106067516 A CN106067516 A CN 106067516A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
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- 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
- H10K59/10—OLED displays
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
This application discloses a kind of luminescent device and luminous display unit, in order to improve the light output efficiency of luminescent device.The application provides a kind of luminescent device, including underlay substrate, it is arranged at the plicated layer on described underlay substrate, is arranged at the first electrode layer on described plicated layer, and it is arranged at the luminescent layer with different colours light-emitting zone on described first electrode layer, wherein, described plicated layer has the plication region of different fold periodic dimensions, on the direction being perpendicular to described underlay substrate, different from the fold periodic dimensions of the plication region that the light-emitting zone of different colours faces, described fold periodic dimensions is adjacent two troughs or the spacing of crest of fold.
Description
Technical field
The application relates to luminescence display field, particularly relates to a kind of luminescent device and luminous display unit.
Background technology
In recent years, display of organic electroluminescence (Organic Light-Emitting Diode, OLED) is as a kind of
Novel flat pannel display is the most more paid close attention to.Due to its there is active illuminating, luminosity is high, resolution high, width regards
Angle, fast response time, low energy consumption and can the feature such as flexibility, become the display skill of future generation likely replacing liquid crystal display
Art.
But the external quantum efficiency that OLED is overall at present is relatively low, and this has the biggest one mainly due to OLED inside
Light splitting is due to the difference of each functional layer refractive index, and the difference of the refractive index of each functional layer and air, causes significant proportion
Light all cannot penetrate from exiting surface when transmission, but is trapped in device inside by waveguide effect, causes light loss of energy,
That is, the light output efficiency of existing OLED is relatively low.
Summary of the invention
The embodiment of the present application provides a kind of luminescent device and luminous display unit, defeated in order to improve the light of luminescent device
Go out efficiency.
A kind of luminescent device that the embodiment of the present application provides, including underlay substrate, is arranged on described underlay substrate
Plicated layer, it is arranged at the first electrode layer on described plicated layer, and is arranged at having not on described first electrode layer
With the luminescent layer in colour light emitting region, wherein, described plicated layer has the plication region of different fold periodic dimensions, is being perpendicular to
It is on the direction of described underlay substrate, different from the fold periodic dimensions of the plication region that the light-emitting zone of different colours faces,
Described fold periodic dimensions is adjacent two troughs or the spacing of crest of fold.
The luminescent device that the embodiment of the present application provides, is provided with plicated layer, and described plicated layer on underlay substrate
There is the plication region of the different fold periodic dimensions corresponding from the light-emitting zone of different colours, be perpendicular to described substrate base
On the direction of plate, different from the fold periodic dimensions of the plication region that the light-emitting zone of different colours faces.Owing to having tool
The luminescent device that body is photochromic, its light output efficiency has certain corresponding relation with this light-color wavelengths, i.e. on underlay substrate
When the periodic dimensions size of formation plicated layer is corresponding with this light-color wavelengths, the light output efficiency of luminescent device can arrive accordingly
Maximum, by photochromic being arranged accordingly according to what this luminescent device luminescent layer sent by the periodic dimensions of plicated layer, enters
And the different luminous photochromic light output efficiency of luminescent device can be improved, make that there is sending out of different luminous photochromic light-emitting zone
Optical device reaches optimal light output efficiency.
Preferably, the fold periodic dimensions of described plication region has predetermined period size range, described predetermined period chi
Very little scope is less than or equal to the preset wavelength scope of the light-emitting zone with respective color;Or, described plication region average
Periodic dimensions is equal with the peak wavelength of the light-emitting zone of respective color.
Preferably, described plicated layer includes multiple spheroid, and the diameter of the spheroid of different described plication region is different.
Preferably, described spheroid is uniformly distributed on described underlay substrate.
The luminescent device that the application provides, spheroid is uniformly distributed on underlay substrate and is conducive to making spheroid form the cycle
Orderly plicated layer, the underlay substrate that spheroid is distributed can be made to have, and cycle that traditional fold underlay substrate had has
The draping effect of sequence, effectively improves light output efficiency.
Preferably, described spheroid on described underlay substrate in monolayer distribution.
The luminescent device that the application provides, spheroid can make spheroid at substrate base on underlay substrate in monolayer distribution
The plicated layer that on plate, the formation cycle is orderly, the beneficially raising of light output efficiency.
Preferably, the material of described spheroid includes one of llowing group of materials or combines:
Silicon dioxide, zinc oxide, titanium oxide.
Preferably, described luminescent layer is monochrome light emission layer, white-light emitting layer or the luminescence including redgreenblue light
Layer.
Preferably, it is additionally provided with the second electrode lay on described luminescent layer.
Preferably, it is additionally provided with encapsulation cover plate on described the second electrode lay.
Preferably, described first electrode layer includes being cascading the first indium tin oxide layer, the first silver metal layer and
First indium tin oxide layer.
Preferably, described the second electrode lay includes any one of indium tin oxide layer or IZO layer.
Preferably, described first electrode layer includes any one of indium tin oxide layer or IZO layer.
Preferably, described the second electrode lay includes being cascading the 3rd indium tin oxide layer, the second silver metal layer and
4th indium tin oxide layer.
Preferably, described luminescent device is organic luminescent device.
The embodiment of the present application also provides for a kind of luminous display unit, the described luminous organ provided including the embodiment of the present application
Part.
Accompanying drawing explanation
The structural representation of a kind of luminescent device that Fig. 1 provides for the embodiment of the present application;
The structural representation of the another kind of luminescent device that Fig. 2 provides for the embodiment of the present application;
The knot of a kind of luminescent device being formed with the second electrode lay on luminescent layer that Fig. 3 provides for the embodiment of the present application
Structure schematic diagram;
A kind of luminescent device being formed with encapsulation cover plate on the second electrode lay that Fig. 4 provides for the embodiment of the present application
Structural representation;
The structural representation of a kind of concrete top emitting device that Fig. 5 provides for the embodiment of the present application;
The structural representation of a kind of concrete bottom emitting device that Fig. 6 provides for the embodiment of the present application;
The schematic diagram of the underlay substrate being formed with spheroid that Fig. 7 provides for the embodiment of the present application.
Detailed description of the invention
Below in conjunction with Figure of description, the embodiment of the present application is realized process to be described in detail.It should be noted that
The most same or similar label represents same or similar element or has the element of same or like function.Lead to below
It is exemplary for crossing the embodiment being described with reference to the drawings, and is only used for explaining the application, and it is not intended that restriction to the application.
As it is shown in figure 1, the embodiment of the present application provides a kind of luminescent device, including underlay substrate 1, it is arranged at underlay substrate 1
On plicated layer 2, be arranged at the first electrode layer 3 on plicated layer 2, and be arranged at having on the first electrode layer 3
The luminescent layer 4 of different colours light-emitting zone, i.e. luminescent layer 4 have can send the red light-emitting region 41 of HONGGUANG respectively, send
The green luminescence region 42 of green glow and send the blue light emitting region 43 of blue light, wherein, in the direction being perpendicular to underlay substrate
On, plicated layer 2 has the different plication region that the light-emitting zone different from luminescent layer 4 faces, with sending out of different colours
The fold periodic dimensions of the plication region that light region faces is different, and fold periodic dimensions is adjacent two troughs or the ripple of fold
The spacing at peak.
The luminescent device that the embodiment of the present application provides, is provided with plicated layer 2 on underlay substrate 1, and plicated layer 2 has
There is the different plication region that the light-emitting zone different from luminescent layer 4 faces, face with the light-emitting zone of different colours
The fold periodic dimensions of plication region different.Owing to having the most photochromic luminescent device, its light output efficiency is photochromic with this
Wavelength has certain corresponding relation, i.e. forms fold periodic dimensions and this light-color wavelengths of plicated layer 2 on underlay substrate 1
Time corresponding, the light output efficiency of luminescent device can arrive corresponding maximum, by by big for the fold periodic dimensions of plicated layer 2
Little photochromic arrange accordingly according to what this luminescent device luminescent layer 4 sent, and then the difference that can improve luminescent device is sent out
The light output efficiency that light is photochromic, makes the luminescent device with different luminous photochromic light-emitting zone reach optimal light output and imitates
Rate.When especially the luminescent layer 4 at luminescent device has RGB different light-emitting zone, the light output effect of zones of different can be made
Rate is all improved, and improves the overall light output efficiency of luminescent device, it is to avoid conventional light emitting device cannot improve and has RGB
The light output efficiency of different light-emitting zones.
It should be noted that Fig. 1 is only to be made up of spheroid with plicated layer 2 to be illustrated, the concrete shape of plicated layer 2
Shape, can be configured in the specific implementation according to demand, and the embodiment of the present application is not limited.Such as, plicated layer 2 is all right
It is made up of regularly arranged triangular pyramid, as long as the recurring rule row corresponding from different light-emitting zones can be formed on underlay substrate 1
The periodic unit of row, all within protection scope of the present invention.Preferably, the plicated layer of the embodiment of the present application includes multiple spherical
Body, the diameter of the spheroid of different institutes plication region is different.
It should be noted that the luminescent device that the embodiment of the present application is proposed, its according to luminescent layer 4 send photochromic not
With, can also be specifically monochrome devices, such as, be specifically as follows emitting red light device, green light emitting device or blue-light-emitting device
Part;It can also be the white-light illuminating device of laminated construction;Can also be for RGB dot structure device respectively.Below with plicated layer 2
As a example by multiple spheroides, the concrete luminescent device providing the embodiment of the present invention is illustrated.For monochromatic luminous
Device, such as, if as in figure 2 it is shown, emitting red light device, then forming diameter and this red light of the spheroid of plicated layer 2
Wavelength is corresponding;If green light emitting device, then the diameter of the spheroid forming plicated layer 2 is relative with the wavelength of this green light
Should;If blue luminescent device, then the diameter of the spheroid forming plicated layer 2 is corresponding with the wavelength of this blue light.For folded
The white-light illuminating device of Rotating fields, the diameter of the spheroid forming plicated layer 2 is optional corresponding with the wavelength of visible ray.For
RGB dot structure device respectively, shown in Figure 1, the red light-emitting of HONGGUANG can be sent respectively owing to its luminescent layer 4 has
Region 41, send the green luminescence region 42 of green glow and send the blue light emitting region 43 of blue light, then different from luminescent layer 4
The respective regions of the plicated layer 2 that photochromic region is corresponding, the diameter of its spheroid is consistent with corresponding light-color wavelengths, such as, if sending out
The light that the emitting red light region 41 of photosphere 4 sends is HONGGUANG, then the phase of corresponding with this red light region 41 of luminescent layer 4 plicated layer 2
Answering region, the diameter of spheroid is corresponding with the wavelength of this red light;If the light that the green emitting region 42 of luminescent layer 4 sends is
Green glow, the then respective regions of corresponding with this green wavelength 42 of luminescent layer 4 plicated layer 2, the diameter of spheroid and this green light
Wavelength is corresponding;If the light that the blue-light-emitting region 43 of luminescent layer 4 sends is blueness, then right with this blue region 43 of luminescent layer 4
The respective regions of the plicated layer 2 answered, the diameter of spheroid is corresponding with the wavelength of this blue light.It should be noted that here
Red light-emitting region 41, green luminescence region 42 and blue light emitting region 43 can refer to the red, green, blue pixel of luminescent device respectively
Region.It addition, Fig. 2 only has two emitting red light regions 41, two green emitting regions 42 and two indigo plants with luminescent layer 4
Color light-emitting zone 43 is illustrated, for the number of the different light-emitting zone of light-emitting display device, and can be concrete real
Arrange the most flexibly when executing, do not limit at this.
Even if generally, due to the light that same light-emitting zone sends, its wavelength the most typically has certain scope, because of
This, the diameter of spheroid can be a value range, but in order to make luminescent device reach optimal light output efficiency, spherical
The diameter range of body is less than or is equal to the scope of this emission wavelength, and even emission wavelength is in the range of preset wavelength scope, ball
The diameter range of shape body is preset diameters scope, then the preset diameters scope of spheroid is less than or equal to the default ripple of emission wavelength
Long scope;It addition, although the light that luminescent layer 4 sends is generally of certain wave-length coverage, but in corresponding wave-length coverage one
As there is the strongest peak wavelength of a luminescence, therefore, the diameter of spheroid can also be an occurrence, and this occurrence is optional
Select the photochromic peak wavelength sent with this luminescent layer 4 corresponding.Certainly, in the specific implementation, owing to allowing more spheroid
Manufacturing conditions needed for all having identical diameter is the harshest, and the diameter of spheroid can be understood as more multiple spheroid here
The meansigma methods of diameter.That is, the wavelength that the diameter of spheroid is photochromic with the luminescence of corresponding light-emitting zone is corresponding, specifically can refer to,
The preset diameters scope of spheroid diameter is less than or equal to the preset wavelength scope of corresponding light-color wavelengths, or, putting down of spheroid
All diameters are equal with the most photochromic peak wavelength.In like manner, plicated layer is made up of the periodic unit of other shapes, fold
Periodic dimensions also can have predetermined period size range, the ripple that the periodic dimensions of fold is photochromic with the luminescence of corresponding light-emitting zone
Long corresponding, specifically can refer to, the predetermined period size range of fold is less than or equal to the preset wavelength scope of corresponding light-color wavelengths,
Or, size average period of fold is equal with the most photochromic peak wavelength.Include as a example by spheroid by plicated layer below, right
The concrete condition that the periodic dimensions of the fold wavelength photochromic with the luminescence of light-emitting zone is corresponding, carries out following concrete example respectively
Explanation.
The preset diameters scope of spheroid diameter is less than or equal to the preset wavelength scope of corresponding light-color wavelengths, it is preferred that
The preset diameters scope of spheroid is identical, certainly with the preset wavelength scope of the light-color wavelengths that the luminescent layer 4 of luminescent device sends
Can also be different, the light-emitting zone of different colours, can be according to its luminous photochromic wave-length coverage, by means such as experiments in advance
Determine the concrete scope of the fold periodic dimensions of the plicated layer of correspondence.For single color light emitting devices, such as, emitting red light device,
If the photochromic preset wavelength scope that its luminescent layer sends is 620 nanometers~760 nanometers, then the preset diameters scope of spheroid is
620 nanometers~760 nanometers, the fold periodic dimensions of the plication region that i.e. emitting red light region is corresponding in the range of 620 nanometers~
760 nanometers;The most such as, green light emitting device, if the photochromic preset wavelength scope that its luminescent layer sends is 490 nanometers~560
Nanometer, then the diameter range of spheroid is 490 nanometers~560 nanometers;The most such as, blue luminescent device, if its luminescent layer sends
Photochromic preset wavelength scope be 450 nanometers~490 nanometers, then the preset diameters of spheroid may range from 450 nanometers~
490 nanometers.For RGB dot structure device respectively, due to its luminescent layer 4 have can send respectively HONGGUANG, green glow and
The respective regions of blue light, then, the respective regions of the plicated layer 2 that photochromic regions different from luminescent layer 4 are corresponding, presetting of its spheroid
Diameter range is identical with corresponding photochromic preset wavelength.Such as, if the HONGGUANG that sends of the emitting red light region of luminescent layer pre-
If wave-length coverage is 620 nanometers~760 nanometers, then the respective regions of corresponding with this red light region of luminescent layer 4 plicated layer 2, ball
The preset diameters scope of shape body is 620 nanometers~760 nanometers;If presetting of the green glow that the green emitting region of luminescent layer 4 sends
Wave-length coverage is 490 nanometers~560 nanometers, then the respective regions of corresponding with this green wavelength of luminescent layer 4 plicated layer 2 is spherical
The preset diameters scope of body is 490 nanometers~560 nanometers;If the default ripple of the blue light that the blue-light-emitting region of luminescent layer 4 sends
Long scope is 450 nanometers~490 nanometers, then the respective regions of corresponding with this blue region of luminescent layer 4 plicated layer 2, spheroid
Preset diameters scope be can be with 450 nanometers~490 nanometers.For the white-light illuminating device of laminated construction, if its luminescent layer 4
The photochromic preset wavelength scope gone out is 390 nanometers~760 nanometers, then the preset diameters scope of the spheroid of plicated layer 2 is permissible
It is 390 nanometers~760 nanometers.
The average diameter of spheroid is equal with the most photochromic peak wavelength.For single color light emitting devices, such as, specifically
, if luminescent device is red monochromatic luminescent device, the preset wavelength scope of the HONGGUANG that its luminescent layer 4 sends be 620 nanometers~
680 nanometers, wherein, the peak wavelength of this HONGGUANG is 650 nanometers, then the average diameter of spheroid can be preferably 650 nanometers;If
Luminescent device is green monochromatic luminescent device, and the preset wavelength scope of the green glow that its luminescent layer 4 sends is that 490 nanometers~560 are received
Rice, wherein, the peak wavelength of this green glow is 525 nanometers, then the average diameter of spheroid can be preferably 525 nanometers;If it is luminous
Device is blue monochromatic luminescent device, and the preset wavelength scope of the blue light that its luminescent layer 4 sends is 450 nanometers~490 nanometers, its
In, the peak wavelength of this blue light is 470 nanometers, then the average diameter of spheroid can be preferably 470 nanometers.For RGB respectively
Dot structure device, such as, if the preset wavelength scope of HONGGUANG that the emitting red light region of luminescent layer sends be 620 nanometers~
680 nanometers, wherein, the peak wavelength of this HONGGUANG is 650 nanometers, then the phase of corresponding with this red light region of luminescent layer 4 plicated layer 2
Answering region, the average diameter of spheroid can be preferably 650 nanometers;If the green glow that the green emitting region of luminescent layer 4 sends
Preset wavelength scope is 490 nanometers~560 nanometers, and wherein, the peak wavelength of this green glow is 525 nanometers, then this is green with luminescent layer 4
The respective regions of the plicated layer 2 that light region is corresponding, the average diameter of spheroid can be preferably 525 nanometers;If the indigo plant of luminescent layer 4
The preset wavelength scope of the blue light that color light-emitting zone sends is 450 nanometers~490 nanometers, and wherein, the peak wavelength of this blue light is
470 nanometers, then the respective regions of corresponding with this blue region of luminescent layer 4 plicated layer 2, the average diameter of spheroid can be preferred
It is 470 nanometers.
Preferably, the luminescent device of the embodiment of the present application is organic luminescent device, and organic luminescent device is on luminescent layer 4
Typically it is additionally provided with the second electrode lay 5, as shown in Figure 3.Preferably, encapsulation cover plate can also be set on the second electrode lay 5
6, as shown in Figure 4, wherein, packaging plastic 7 can also be set between underlay substrate 1 and encapsulation cover plate 6.Wherein, the first electrode layer 3
With anode and the negative electrode that the second electrode lay 5 can be respectively organic luminescent device.It addition, organic luminescent device is according to its device architecture
Difference, can be generally divided into top emitting device and bottom emitting device.For top emitting device, as it is shown in figure 5, the first electrode layer 3
For reflection electrode layer, first indium tin oxide layer the 31, first silver metal layer 32 and second being cascading specifically can be included
Indium tin oxide layer 33.The second electrode lay 5 is transparent electrode layer, specifically can include any of indium tin oxide layer or IZO layer
A kind of;For bottom emitting device, as shown in Figure 6, the first electrode layer 3 is transparent electrode layer, specifically can include tin indium oxide
Layer or any one of IZO layer, the second electrode lay 5 is reflection electrode layer, specifically can include being cascading the
Three indium tin oxide layer the 51, second silver metal layer 52 and the 4th indium tin oxide layers 53.It should be noted that Fig. 3-Fig. 6 be the most only with
The light that luminescent layer 4 sends is monochromatic light, as a example by plicated layer 2 has the spheroid of same diameter range, has to luminescent device
The illustration that two electrode layers and encapsulation cover plate are carried out, in the specific implementation, the luminous zone that plicated layer 2 has according to luminescent layer 4
Territory is not at the same time it can also be have structure as shown in Figure 2, and the embodiment of the present application is not limited.
It should be noted that luminescent layer 4 can refer to include the combination of multiple functional film layer, such as, this luminescent layer 4 can wrap
Include hole injection layer, hole transmission layer, organic luminous layer, electron transfer layer and electron injecting layer, the concrete film layer knot of luminescent layer 4
Structure, can arrange the most flexibly in the specific implementation, does not repeats them here.It addition, underlay substrate 1 can be glass
Glass underlay substrate, it is also possible to for flexible RF magnetron sputtering substrate.
Preferably, in order to make spheroid form cycle orderly plicated layer 2 on underlay substrate 1, it is effectively improved light defeated
Going out efficiency, the spheroid that the embodiment of the present application provides is uniformly distributed on underlay substrate 1.Spheroid is uniform on underlay substrate 1
Distribution, the pleat that the underlay substrate 1 that spheroid is distributed can be made to have cycle that traditional fold underlay substrate had is orderly
Wrinkle effect, effectively improves light output efficiency.
Preferably, spheroid on underlay substrate 1 in monolayer distribution.The luminescent device that the embodiment of the present application provides, spherical
Body is in monolayer distribution on underlay substrate 1, and beneficially spheroid forms cycle orderly plicated layer 2, favorably on underlay substrate 1
Raising in light output efficiency.Certainly, spheroid can also be in Multi-layers distributing on underlay substrate 1, when spheroid is at substrate base
Time on plate 1 in Multi-layers distributing, multilamellar spheroid is also needed to form cycle orderly plicated layer 2 on underlay substrate, i.e. the ball on upper strata
The distribution of shape body need to keep consistent with the spheroid distributional pattern of lower floor, and for each spheroid, the spheroid on upper strata needs
The centre of sphere of the spheroid corresponding with lower floor is maintained on same vertical curve.
In the specific implementation, spheroid is specifically as follows nanosphere, it is also possible to for nano core-shell.The material of spheroid includes
One of llowing group of materials or combination: silicon dioxide, zinc oxide, titanium oxide.It should be noted that existing fold underlay substrate is general
Obtained by photoetching organic film, or by obtaining from the method for etching.But these methods are for the dot structure of RGB difference
Device, the periodic dimensions of its fold underlay substrate, therefore cannot reach without distinguishing in the photochromic region of difference of corresponding luminescent layer
To optimum light output efficiency.In the embodiment of the present application, the plicated layer 2 on underlay substrate 1 is formed by nanosphere or nano core-shell,
By making nanosphere or the nano core-shell of different-diameter size at different light-emitting zones, and then the light of luminescent device can be made
Delivery efficiency photochromic is correspondingly improved according to what luminescent layer 4 sent.
Below with spheroid as silica nanosphere as a example by, to the plicated layer 2 forming spheroid on underlay substrate 1
Method carry out as described below:
First, it is thus achieved that the silica nanosphere of different-diameter size.Silica nanometer for different-diameter size
The acquisition of ball, can be by directly buying acquisition, naturally it is also possible to according to the needs of oneself, preparation has the nanometer of specific dimensions
Ball.The preparation method of silica nanosphere includes vapour deposition process, Physical, solution phase chemical reduction, and chemical precipitation method is molten
Sol-gel etc..A kind of preparation method below by way of illustrating silica nanosphere:
By a certain amount of dehydrated alcohol and ammonia and deionized water mix homogeneously, stir one hour, additionally by positive silicic acid
Tetrem fat mixes with ethanol, joins in foregoing solution.At room temperature, water-bath one day, separate through high speed centrifugation
Go out silica nanosphere, and with washes of absolute alcohol several times.The suspension of the silica nanosphere now obtained.Typically
In the case of, ethanol accounts for the volume ratio of the 80%-90% of whole reaction system, and e.g., if reaction system is 100ml, ethanol is 80-
90ml, ammonia and tetraethyl silicate resin are then respectively 0-20ml.In this reaction, can change made by the ratio of regulation ammonia
The size of standby silica nanosphere.
Secondly, silica nanosphere is formed on underlay substrate 1.Can be by the water-laid film such as spin coating and printing
Silica nanosphere is formed on underlay substrate 1 by mode, it is also possible to directly carry out silica nanometer on underlay substrate 1
The preparation reaction of ball.It is illustrated in figure 7 the schematic diagram being formed with silica nanosphere on underlay substrate.Shown in Fig. 7 it is
Having the silica nanosphere of the certain diameter size schematic diagram under different amplification, wherein, the picture left above is amplification one
The schematic diagram of thousand times, top right plot is the schematic diagram of amplification 2,000 times, and lower-left figure is the schematic diagram of amplification 5,000 times, and bottom-right graph is for putting
The schematic diagram of big 10,000 times.
Concrete, for single color light emitting devices, receive it is for instance possible to use directly carry out silicon dioxide on underlay substrate 1
The preparation reaction of rice ball.After preparing the suspension of silica nanosphere, its concentration is adjusted to suitable concentration.Will
The underlay substrate 1 that surface carried out modifying is put in silica nanosphere suspension, and silica nanosphere can be at substrate base
The array structure of plate 1 surface self-organization formation rule, was drawn off after reaction a period of time, dried, and makes the moisture on surface and has
The impurity such as machine solvent are fully removed, and i.e. obtain required underlay substrate 1.For the white-light illuminating device of laminated construction, such as, can
By at overall pixel region by spin coating or inkjet printing in the way of be coated with and be covered with silica nanosphere, make OLED the most again
The structure of each layer.For RGB dot structure device respectively, in the titanium dioxide of different pixel region coating different-diameter sizes
Silicon nanosphere, the method for employing is printing or the method printed.The silica nanosphere suspension of different-diameter is dispersed in
In printer, select the suitable shower nozzle of size, it is ensured that monolayer silicon dioxide when the drop printed disperses on substrate, can be obtained
Nanosphere.Underlay substrate 1 is dried after completing by printing.The follow-up evaporation process proceeding pixels different for RGB.
It should be noted that the luminescent device that the embodiment of the present application proposes, its manufacture method is based on general organic
The preparation method of optical device, for underlay substrate 1, first carries out multiple cleaning by underlay substrate 1, by the Organic substance on surface and
Graininess impurity cleans up, then by underlay substrate 1 dry for standby.
The embodiment of the present application also provides for a kind of luminous display unit, the organic illuminator provided including the embodiment of the present application
Part.
In sum, the luminescent device that the embodiment of the present application provides, on underlay substrate, it is provided with plicated layer, and institute
State plicated layer and there is the plication region of the different fold periodic dimensions corresponding from the light-emitting zone of different colours, being perpendicular to
State on the direction of underlay substrate, different from the fold periodic dimensions of the plication region that the light-emitting zone of different colours faces.By
In having the most photochromic luminescent device, its light output efficiency has certain corresponding relation with this light-color wavelengths, i.e. at lining
Formed on substrate the periodic dimensions size of plicated layer corresponding with this light-color wavelengths time, the light output efficiency of luminescent device can arrive
Reach corresponding maximum, by by the periodic dimensions of plicated layer according to this luminescent device luminescent layer send photochromic carry out corresponding
Arrange, and then the different luminous photochromic light output efficiency of luminescent device can be improved, make that there is different luminous photochromic luminescence
The luminescent device in region reaches optimal light output efficiency.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the application to the application
God and scope.So, if these amendments of the application and modification belong to the scope of the application claim and equivalent technologies thereof
Within, then the application is also intended to comprise these change and modification.
Claims (10)
1. a luminescent device, it is characterised in that include underlay substrate, be arranged at the plicated layer on described underlay substrate, set
Be placed in the first electrode layer on described plicated layer, and be arranged on described first electrode layer to have different colours luminous
The luminescent layer in region, described plicated layer has the plication region of different fold periodic dimensions, is being perpendicular to described underlay substrate
On direction, different from the fold periodic dimensions of the plication region that the light-emitting zone of different colours faces, described fold cycle chi
Very little adjacent two troughs for fold or the spacing of crest.
2. luminescent device as claimed in claim 1, it is characterised in that the fold periodic dimensions of described plication region has default
Periodic dimensions scope, described predetermined period size range is less than or equal to the preset wavelength model of the light-emitting zone with respective color
Enclose;Or, size average period of described plication region is equal with the peak wavelength of the light-emitting zone of respective color.
3. luminescent device as claimed in claim 2, it is characterised in that described plicated layer includes multiple spheroid, different described
The diameter of the spheroid of plication region is different.
4. luminescent device as claimed in claim 3, it is characterised in that described spheroid uniformly divides on described underlay substrate
Cloth.
5. luminescent device as claimed in claim 3, it is characterised in that described spheroid divides in monolayer on described underlay substrate
Cloth.
6. luminescent device as claimed in claim 3, it is characterised in that the material of described spheroid include one of llowing group of materials or
Combination:
Silicon dioxide, zinc oxide, titanium oxide.
7. luminescent device as claimed in claim 1, it is characterised in that described luminescent layer is monochrome light emission layer, white-light emitting
Layer or include the luminescent layer of redgreenblue light.
8. luminescent device as claimed in claim 1, it is characterised in that be additionally provided with the second electrode lay on described luminescent layer.
9. luminescent device as claimed in claim 8, it is characterised in that be additionally provided with cap on described the second electrode lay
Plate.
10. a luminous display unit, it is characterised in that include the luminescent device as described in any one of claim 1-9.
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