CN106684072A - Organic light emitting diode (OLED) device - Google Patents
Organic light emitting diode (OLED) device Download PDFInfo
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- CN106684072A CN106684072A CN201710121620.4A CN201710121620A CN106684072A CN 106684072 A CN106684072 A CN 106684072A CN 201710121620 A CN201710121620 A CN 201710121620A CN 106684072 A CN106684072 A CN 106684072A
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- 239000010410 layer Substances 0.000 claims abstract description 45
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 239000012044 organic layer Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 19
- 229910052709 silver Inorganic materials 0.000 claims description 9
- 239000004332 silver Substances 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000002347 injection Methods 0.000 abstract description 10
- 239000007924 injection Substances 0.000 abstract description 10
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 238000003475 lamination Methods 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000027756 respiratory electron transport chain Effects 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000005424 photoluminescence Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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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
- H10K59/90—Assemblies of multiple devices comprising at least one organic light-emitting element
-
- 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
- H10K50/805—Electrodes
- H10K50/82—Cathodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/856—Arrangements for extracting light from the devices comprising reflective means
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention provides an organic light emitting diode (OLED) device capable for emitting light from double surfaces. The OLED device comprises a first OLED device, a second OLED device and a substrate which are arranged in a lamination way from top to bottom, the first OLED device comprises a first negative electrode, a first organic layer and a first positive electrode which are arranged from top to bottom, the first organic layer comprises a hole injection layer HIL, a hole transmission layer HTL, a light emitting layer EML, an electron transmission layer ETL and an electron injection layer EIL, the second OLED device comprises a second negative electrode, a second organic layer and a second positive electrode which are arranged from top to bottom, the second organic layer similarly comprises a hole injection layer HIL, a hole transmission layer HTL, a light emitting layer EML, an electron transmission layer ETL and an electron injection layer EIL, light emitted from the second OLED is reflected by the second negative electrode and is emitted in a way facing the substrate, and light emitted from the first OLED is reflected by the second negative electrode and is emitted in a way facing one side far away from the substrate. By the OLED device, double-sided light emitting can be achieved, and different control on double surfaces is achieved by a control electrode.
Description
Technical field
The application be related to it is a kind of can double-side OLED device.
Background technology
Flat-panel display device has many merits such as thin fuselage, power saving, radiationless, is widely used.It is existing
Flat-panel display device mainly includes liquid crystal display device（Liquid Crystal Display,LCD）And organic electroluminescent is aobvious
Show device（Organic Light Emitting Display,OLED）.
OLED is not required to that backlight, contrast height, thickness of thin, visual angle be wide, response speed due to being provided simultaneously with self-luminous
Hurry up, can be used for flexibility panel, using wide temperature range, construction and the excellent specific property such as processing procedure is simpler, be unanimously acknowledged as
The mainstream technology that the next generation shows, obtains the favor of Ge great display producer.
OLED is generally included：Substrate, the anode on substrate, the hole injection layer on anode, located at sky
Hole transmission layer on the implanted layer of cave, the organic luminous layer on hole transmission layer, the electronics on organic luminous layer are passed
Defeated layer, the electron injecting layer on electron transfer layer and the negative electrode on electron injecting layer, its principle of luminosity is quasiconductor
Material and luminous organic material are injected and composite guide photoluminescence under electric field driven by carrier.Specifically, OLED is led to
Frequently with ITO electrode and metal electrode respectively as anode and negative electrode, under certain driving, electronics and hole respectively from negative electrode and
Anode is injected into electron injecting layer and hole injection layer, and electronics and hole migrate respectively through electron transfer layer and hole transmission layer
To organic luminous layer, and meet in organic luminous layer, forming exciton simultaneously makes light emitting molecule laser, the latter is through radiative relaxation
Send visible ray.
With the development of Display Technique, consumer possesses that response speed is fast, high resolution, image quality except requiring display device
Outside fine and smooth the features such as, function and the breakthrough in display pattern are also pursued.Therefore, double-sided OLED device arises at the historic moment, double-sided OLED
In addition to the various characteristics for possessing common OLED device, can also extend device image spacing, be switched fast and process multiple aobvious
Show picture, have huge application space in advertising and portable type electronic product.Current double-sided OLED device is mostly only
It is back-to-back to be assembled two independent OLEDs, to realize double-sided display, structure is more thick and heavy, and technique is relatively multiple
Miscellaneous, cost of manufacture is higher, does not meet the desired frivolous requirement with high performance-price ratio of consumer.
The content of the invention
In order to one of solve the above problems, present applicant proposes it is a kind of can double-side OLED device, it is possible to be used as
Double-sided display or double-side illumination.
To achieve these goals, the technical scheme that the embodiment of the application one is provided is as follows：
A kind of OLED device, the OLED device includes stacking the first OLED, second OLED of setting from top to bottom
And substrate；First OLED includes the first negative electrode, the first organic layer and the first anode that arrange from top to bottom, described the
Two OLEDs include the second negative electrode, the second organic layer and the second plate for arranging from top to bottom；Second OLED is sent out
The light for going out is through the reflection of the second negative electrode and luminous towards substrate, and the light that first OLED sends is through the second negative electrode
The side for reflecting and facing away from substrate lights.
As a further improvement on the present invention, the OLED device also includes being arranged at the optics above the first OLED
Coupling layer.
As a further improvement on the present invention, the OLED device also includes being arranged between substrate and the second OLED
Colored filter.
As a further improvement on the present invention, the material of first negative electrode is silver, and the material of second negative electrode is silver
Or aluminum.
As a further improvement on the present invention, thickness of the thickness of second negative electrode more than first negative electrode.
As a further improvement on the present invention, the thickness of first negative electrode is between 10nm and 20nm.
As a further improvement on the present invention, the thickness of second negative electrode is between 50nm and 300nm.
As a further improvement on the present invention, the material of the first anode and second plate is ITO.
As a further improvement on the present invention, the thickness of the first anode is between 10nm and 100nm.
As a further improvement on the present invention, the thickness of the second plate is between 20nm and 200nm.
Beneficial effects of the present invention：The OLED device in the present invention is by the first OLED and the second OLED heap
It is folded to form, also, the light that sends of second OLED is through the reflection of the second negative electrode and luminous towards substrate, and described first
The light that OLED sends through the second negative electrode reflection and face away from substrate side light, so as to be capable of achieving two-sided
Light, and two-sided different controls can be realized by coordination electrode, and technique is simpler, and overall structure is more frivolous.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding of the present application, constitutes the part of the application, this Shen
Schematic description and description please does not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is the structural representation of OLED device of the present invention.
Specific embodiment
To make purpose, technical scheme and the advantage of the application clearer, below in conjunction with the application specific embodiment and
Corresponding accompanying drawing is clearly and completely described to technical scheme.Obviously, described embodiment is only the application one
Section Example, rather than the embodiment of whole.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of the application protection.
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " longitudinal direction ", " horizontal ", " on ", D score, "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward " is based on accompanying drawing institute
The orientation for showing or position relationship, are for only for ease of the description present invention and simplify description, rather than indicate or imply the dress of indication
Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the present invention limit
System.
In describing the invention, unless otherwise prescribed and limit, it should be noted that term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanically connected or electrical connection, or the connection of two element internals, can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
As shown in figure 1, the invention provides a kind of OLED device, the OLED device includes that stacking from top to bottom is arranged
First OLED, the second OLED and substrate 9.First OLED includes negative electrode, anode and is arranged at the moon
Organic layer between pole and anode.Specifically, in the present embodiment, for convenience of description, by first OLED
The first organic layer that structure is specifically configured to the first negative electrode 2, the first anode 4 and is arranged between the first negative electrode 2 and the first anode 4
3；The structure of second OLED is specifically configured to into the second negative electrode 5, second plate 7 and the second negative electrode 5 and is arranged at
The second organic layer 6 between two anodes 7.
Certainly, hole injection layer on anode is also included in the OLED device, on hole injection layer
Hole transmission layer, the electron transfer layer on organic layer, the electron injecting layer on electron transfer layer, electronics and hole point
Electron injecting layer and hole injection layer are not injected into from negative electrode and anode, electronics and hole are respectively through electron transfer layer and hole
Transport layer moves to organic layer, and meets in organic layer, and forming exciton simultaneously excites light emitting molecule, then through radiative relaxation
Send visible ray.In the present embodiment, for convenience of description, hole injection layer, hole transmission layer etc. do not carried out specifically
Explanation, also show not in the drawings.
In the present embodiment, through the reflection of the second negative electrode 5, described second has the light for being sent due to the second organic layer 6
The light that machine layer 6 sends is luminous towards substrate 9, and the light that first organic layer 3 sends also passes through the reflection of the second negative electrode 5, therefore,
The light that first organic layer 3 sends faces away from the side of substrate 9 and lights.Specifically, in the present embodiment, due to described
The material of the second negative electrode 5 is silver or aluminum, therefore, second negative electrode 5 has preferable reflexive, can by the first organic layer 3 and
The light that second organic layer 6 sends is reflected.So as to the first OLED faces away from the side of substrate 9 and lights, the 2nd OLED
Device lights towards the side of substrate 9.Preferably, in present embodiment, the material of second negative electrode 5 is silver.In addition, described
The material of the first negative electrode 2 is also silver or aluminum, and, it is preferred that the material of first negative electrode 2 is also silver.So as to described first
The negative electrode 5 of negative electrode 2 and second can both have electric conductivity, second negative electrode 5 has preferable reflexive again, so as to sending
Light is reflected.
Because the material of the first negative electrode 2 and the second negative electrode 5 is silver, then, in order that the second negative electrode 5 is obtained preferably
Reflecting effect, and also cause the propagation of 2 pairs of light of the first negative electrode to cause less impact, then the thickness of the first negative electrode 2 is much little
In the thickness of the second negative electrode 5, also, the thinner thickness of the first negative electrode 2, so as to the first negative electrode 2 is translucent shape, greatly reduce
Impact to the propagation of light.Specifically, in the present embodiment, the thickness of first negative electrode 2 between 10nm and 20nm it
Between, the thickness of second negative electrode 5 is between 100nm and 300nm.Therefore, the thickness of second negative electrode 5 is thicker so that
The light that first organic layer 3 and the second organic layer 6 send all preferably is reflected；And the thinner thickness of the first negative electrode 2 is in half
It is transparent so that the light that the first organic layer 3 sends can pass through the first negative electrode 2 and outwards distribute, so as to the OLED device in the present invention is
Achievable double-side.
In addition, the material of the first anode 4 and second plate 7 is ITO.ITO is tin-doped indium oxide
（IndiumTinOxide）Abbreviation, ITO materials are a kind of n-type semiconductors, with higher conductivity, high visible ray
Transmitance, high mechanical hardness and good chemical stability.Therefore, ITO materials are liquid crystal displays（LCD）, plasma show
Show device（PDP）, electroluminescent display（EL/OLED）, touch screen（TouchPanel）, solaode and other electronics
The most frequently used thin-film material of the transparency electrode of table.Therefore, in present embodiment, the material of the first anode 4 and second plate 7
ITO is, so as to the propagation of light can not be affected, light is preferably distributed.
Specifically, the thickness of the first anode 4 is between 10nm and 100nm, the thickness of the second plate 7 between
Between 20nm and 200nm, because the thickness of ITO materials is bigger, conductive effect is better, therefore the first anode 4 and second is positive
The thickness of pole 7 is generally larger.If but the thickness of the first anode 4 and second plate 7 is bigger, can also affect its transmittance, because
This, the thickness of the first anode 4 is less than 100nm, and the thickness of the second plate 7 is less than 200nm.In addition, described
The thickness of one anode 4 can not be too small or excessive, due to the setting bonded to each other of 4 and second negative electrode of the first anode 5, if so first
The thickness of anode 4 is excessive or too small, can affect the roughness of ITO material surfaces so that the negative electrode 5 of the first anode 4 and second is fitted
Defective tightness.
In addition, the OLED device also includes being arranged at the optically coupled layers 1 above the first OLED（Optical
Coupling layer, abbreviation CPL）, the optically coupled layers 1 to light preferably to be distributed.Also, it is specific,
In present embodiment, the thickness of the optically coupled layers 1 is 45nm to 80nm.
In addition, filter coating 8 can be prepared between the OLED of the substrate 9 and second（Colour Filter, referred to as
CF）.The filter coating 8 can be filtered to light, so as to change the color of the light for exhaling.Specifically, to allow in the present invention
OLED device as the effect of double-sided display, then the filter coating 8 can be prepared, so as to by controlling the first OLED and the
The negative electrode and anode of two OLEDs, is modified to two-sided luminous intensity, color of the OLED device in the present invention etc.,
So that the OLED device in the present invention obtains more preferable double-sided display effect.Certainly, if the OLED device in the present invention
The effect of double-side illumination is done, then can not prepare the filter coating 8.
In sum, the OLED device includes first OLED and the second OLED of two stacking settings, and
And, also, the light that sends of the first OLED is reflected towards away from the side of substrate 9 through the second negative electrode 5 of the second OLED
To luminous, and the direction for being reflected towards substrate 9 that the light that the second OLED sends also passes through the second negative electrode 5 lights, so as to described
OLED device can form double-side.Also, in the present invention, it is only necessary to a substrate 9, and only need to it is right on the substrate 9
The OLED device is prepared, and technique is relatively simple, and the cost of preparation is relatively low, and overall structure is also more frivolous.Also, can
The first negative electrode 2, the first anode 4, the second negative electrode 5, second plate 7 are powered respectively, so as to can control the first OLED
And second OLED light respectively, and intensity of light etc. can be controlled so that the OLED device it is two-sided
Different changes are carried out according to the demand of user.
It should be understood that, although this specification is been described by according to embodiment, but not each embodiment is only only comprising one
Vertical technical scheme, this narrating mode of description is only that for clarity those skilled in the art should be by description
As an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, formed it will be appreciated by those skilled in the art that
Other embodiment.
The a series of detailed description of those listed above is only for illustrating for the possible embodiments of the present invention,
And be not used to limit the scope of the invention, all Equivalent embodiments made without departing from skill spirit of the present invention or change all should
It is included within protection scope of the present invention.
Claims (10)
1. a kind of OLED device, it is characterised in that：The OLED device include stack from top to bottom setting the first OLED,
Second OLED and substrate；First OLED includes the first negative electrode, the first organic layer and for arranging from top to bottom
One anode, second OLED includes the second negative electrode, the second organic layer and the second plate for arranging from top to bottom；Described
The light that two OLEDs send through the second negative electrode reflection and towards substrate luminous, the light Jing that first OLED sends
The side crossed the reflection of the second negative electrode and face away from substrate lights.
2. display device according to claim 1, it is characterised in that：The OLED device also includes being arranged at an OLED
Optically coupled layers above device.
3. display device according to claim 1, it is characterised in that：The OLED device also includes being arranged at substrate and the
Colored filter between two OLEDs.
4. display device according to claim 1, it is characterised in that：The material of first negative electrode for silver, described second
The material of negative electrode is silver or aluminum.
5. display device according to claim 1, it is characterised in that：The thickness of second negative electrode is cloudy more than described first
The thickness of pole.
6. display device according to claim 1, it is characterised in that：The thickness of first negative electrode is between 10nm and 20nm
Between.
7. display device according to claim 1, it is characterised in that：The thickness of second negative electrode between 50nm and
Between 300nm.
8. display device according to claim 1, it is characterised in that：The material of the first anode and second plate is
ITO。
9. display device according to claim 1, it is characterised in that：The thickness of the first anode between 10nm and
Between 100nm.
10. display device according to claim 1, it is characterised in that：The thickness of the second plate between 20nm and
Between 200nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710121620.4A CN106684072A (en) | 2017-03-02 | 2017-03-02 | Organic light emitting diode (OLED) device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710121620.4A CN106684072A (en) | 2017-03-02 | 2017-03-02 | Organic light emitting diode (OLED) device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106684072A true CN106684072A (en) | 2017-05-17 |
Family
ID=58861746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710121620.4A Pending CN106684072A (en) | 2017-03-02 | 2017-03-02 | Organic light emitting diode (OLED) device |
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| Country | Link |
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| CN (1) | CN106684072A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525033A (en) * | 2017-08-21 | 2017-12-29 | 江苏集萃有机光电技术研究所有限公司 | Mosquito repelling lamp and its implementation |
| CN110391280A (en) * | 2019-07-17 | 2019-10-29 | 深圳市华星光电半导体显示技术有限公司 | The electroluminescent display of one kind and lighting device and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0987774A2 (en) * | 1998-09-16 | 2000-03-22 | The Trustees of Princeton University | An electrode having enhanced hole injection |
| CN100514703C (en) * | 2005-11-29 | 2009-07-15 | 中华映管股份有限公司 | Organic electric luminous element |
| CN102769104A (en) * | 2011-05-06 | 2012-11-07 | 海洋王照明科技股份有限公司 | Flexible two-sided light-emitting organic electroluminescence device and preparation method thereof |
-
2017
- 2017-03-02 CN CN201710121620.4A patent/CN106684072A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0987774A2 (en) * | 1998-09-16 | 2000-03-22 | The Trustees of Princeton University | An electrode having enhanced hole injection |
| CN100514703C (en) * | 2005-11-29 | 2009-07-15 | 中华映管股份有限公司 | Organic electric luminous element |
| CN102769104A (en) * | 2011-05-06 | 2012-11-07 | 海洋王照明科技股份有限公司 | Flexible two-sided light-emitting organic electroluminescence device and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525033A (en) * | 2017-08-21 | 2017-12-29 | 江苏集萃有机光电技术研究所有限公司 | Mosquito repelling lamp and its implementation |
| CN110391280A (en) * | 2019-07-17 | 2019-10-29 | 深圳市华星光电半导体显示技术有限公司 | The electroluminescent display of one kind and lighting device and preparation method thereof |
| US11183671B2 (en) | 2019-07-17 | 2021-11-23 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Electroluminescent display and illuminating device and manufactured method thereof |
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