CN110048021A - A kind of organic electroluminescence display device and method of manufacturing same and preparation method thereof - Google Patents
A kind of organic electroluminescence display device and method of manufacturing same and preparation method thereof Download PDFInfo
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- CN110048021A CN110048021A CN201910309265.2A CN201910309265A CN110048021A CN 110048021 A CN110048021 A CN 110048021A CN 201910309265 A CN201910309265 A CN 201910309265A CN 110048021 A CN110048021 A CN 110048021A
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- 238000005401 electroluminescence Methods 0.000 title claims abstract description 95
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title abstract description 4
- 239000000758 substrate Substances 0.000 claims abstract description 37
- 239000010410 layer Substances 0.000 claims description 240
- 230000000903 blocking effect Effects 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 10
- 239000005439 thermosphere Substances 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000002362 mulch Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 16
- 239000002184 metal Substances 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 16
- 238000000034 method Methods 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 10
- 238000011161 development Methods 0.000 description 7
- 238000007711 solidification Methods 0.000 description 7
- 230000008023 solidification Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000010408 film Substances 0.000 description 6
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- 238000001914 filtration Methods 0.000 description 5
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- 238000005530 etching Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
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- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000027756 respiratory electron transport chain Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/87—Arrangements for heating or cooling
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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
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- 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
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Abstract
This application discloses a kind of organic electroluminescence display device and method of manufacturing same and preparation method thereof, the organic electroluminescence display device and method of manufacturing same includes the TFT substrate being oppositely arranged and cover board；The TFT substrate is equipped with organic electroluminescence device towards the side of the cover board, the cover board is equipped with shading heat-conducting layer towards the side of the organic electroluminescence device, it is radiated with the heat generated to the organic electroluminescence device, improves the heat dissipation performance of organic electroluminescence display device and method of manufacturing same.
Description
Technical field
This application involves technical field of display panel more particularly to a kind of organic electroluminescence display device and method of manufacturing same and its production sides
Method.
Background technique
In recent years, Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) display becomes state
Inside and outside very popular emerging flat-panel screens product, this is because when OLED display has self-luminous, wide viewing angle, short reaction
Between, the characteristics such as high-luminous-efficiency, wide colour gamut, thin thickness, the display that can make large scale and deflection and processing procedure be simple, and
It also has the potentiality of low cost.OLED display can be divided into RGBOLED (Red-Green-Blue Organic Light
Emitting Diode, RGB Organic Light Emitting Diode) and WOLED (White Organic Light Emitting
Diode, white OLED)+colored filter (ColorFilter) etc.；Because WOLED is not needed during being made
High-precision mask, and colorized optical filtering chip technology has become ripe apply in LCD (Liquid Crystal Display, liquid crystal
Show device) in volume production technology, therefore WOLED+ colorized optical filtering chip technology is that large scale full color OLED display volume production potentiality are maximum
Technology.
WOLED device has top emitting and two kinds of frame modes of bottom emitting device.WOLED (the Bottom of bottom emitting type
Emitting WOLED, BE-WOLED) electroluminescent device is to TFT (Thin Film Transistor, thin film transistor (TFT)) base
Plate side issues white light, and R, G, B colourama are formed after CF filter coating, realizes that true color is shown.BE-WOLED is using thickness
Metal is as cathode, and the whole face encapsulation technology encapsulated using metal film, thus has preferable heat dissipation performance.But due to
BE-WOLED goes out light from TFT substrate side, and aperture opening ratio is restricted, it is difficult to reach higher resolution ratio.And the WOLED of top emission type
(Top Emitting WOLED, TE-WOLED) electroluminescent device issues white light to CF cover board side, after CF filter coating
R, G, B colourama are formed, realizes that true color is shown.Its aperture opening ratio is small by being limited, it is easier to reach higher resolution ratio.But
It is that, since TE-WOLED goes out light from CF cover board side, cannot can not also be encapsulated using metal film using thick metal as cathode
Whole face encapsulation technology, thus the heat dissipation performance of large-sized TE-WOLED display device is not as good as BE-WOLED display device.
During electroluminescent, the form that luminous energy does not convert for heat, for large scale display device, largely
Heat need to be diffused into outside display device, to maintain display device work within the scope of certain temperature, and electroluminescent is aobvious
The service life of showing device is related with temperature, and temperature height is unfavorable for the service life of display device.Therefore large-sized TE-WOLED is shown
The heat dissipation performance needs of device are improved.
Summary of the invention
The embodiment of the present application provides a kind of organic electroluminescence display device and method of manufacturing same and preparation method thereof, to solve organic electroluminescence hair
The problem of electro-optical display device heat dissipation performance difference.
The embodiment of the present application provides a kind of organic electroluminescence display device and method of manufacturing same, the TFT substrate including being oppositely arranged and lid
Plate；The TFT substrate is equipped with organic electroluminescence device towards the side of the cover board, and the cover board is towards the organic electroluminescence
The side of luminescent device is equipped with shading heat-conducting layer, is radiated with the heat generated to the organic electroluminescence device.
Further, the shading heat-conducting layer includes the first light shield layer being sequentially arranged on the cover board, heat-conducting layer and
Two light shield layers.
Further, the material of the heat-conducting layer includes metal material, nonmetallic materials or composite heat conducting material.
Further, the thickness of the heat-conducting layer is greater than 1um.
Further, the side of the cover board towards the organic electroluminescence device is additionally provided with colored color blocking layer, described
Colored color blocking layer and the shading heat-conducting layer spacing side by side are arranged.
Further, the colored color blocking layer and the shading heat-conducting layer are close to the side of the organic electroluminescence device
Equipped with protective layer.
Further, the organic electroluminescence device includes luminous zone and non-light-emitting area, the luminous zone and the coloured silk
Color color blocking layer is corresponding, and the non-light-emitting area is corresponding with the shading heat-conducting layer.
The embodiment of the present application also provides a kind of production methods of organic electroluminescence display device and method of manufacturing same, comprising:
TFT substrate is provided, forms organic electroluminescence device in the TFT substrate；
Cover board is provided, forms shading heat-conducting layer on the cover board；
The TFT substrate and the cover board are combined, and make the shading heat-conducting layer and the organic electroluminescent
Device is located between the TFT substrate and the cover board, and the shading heat-conducting layer generates the organic electroluminescence device
Heat radiate.
It is further, described that shading heat-conducting layer is formed on the cover board, comprising:
The first light shield layer is formed on the cover board；
Heat-conducting layer is covered on first light shield layer；
The second light shield layer is covered on the heat-conducting layer, forms shading heat-conducting layer.
It is further, described that shading heat-conducting layer is formed on the cover board, further includes:
Colored color blocking layer is formed on the cover board for being formed with the shading heat-conducting layer, makes the colored color blocking layer and the screening
The setting of light guide thermosphere spacing side by side；
The protective mulch in the colored color blocking layer and the shading heat-conducting layer.
The application have the beneficial effect that the present embodiment by the light shield layer of the cover board side of organic electroluminescence display device and method of manufacturing same into
It has gone improvement, has set shading heat-conducting layer for light shield layer, can both play the effect of shading, it can also be by organic electroluminescence
The heat that part generates, which is timely transmitted to outside display device, to radiate, not to the structure of organic electroluminescence display device and method of manufacturing same
Do big variation in advance under, improve the heat dissipation performance of organic electroluminescence display device and method of manufacturing same.
Detailed description of the invention
With reference to the accompanying drawing, it is described in detail by the specific embodiment to the application, the technical solution of the application will be made
And other beneficial effects are apparent.
Fig. 1 is the partial structure diagram of organic electroluminescence display device and method of manufacturing same provided by the embodiments of the present application；
Fig. 2 is the structural schematic diagram of shading heat-conducting layer provided by the embodiments of the present application；
Fig. 3 is the top view of shading heat-conducting layer provided by the embodiments of the present application and colored color blocking layer；
Fig. 4 is the production method flow diagram of organic electroluminescence display device and method of manufacturing same provided by the embodiments of the present application.
Specific embodiment
Specific structure and function details disclosed herein are only representative, and are for describing showing for the application
The purpose of example property embodiment.But the application can be implemented by many alternative forms, and be not interpreted as
It is limited only by the embodiments set forth herein.
In the description of the present application, it is to be understood that term " center ", " transverse direction ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom", "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of description the application and simplifies description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.In addition, art
Language " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicate institute
The quantity of the technical characteristic of instruction." first " is defined as a result, the feature of " second " can explicitly or implicitly include one
Or more this feature.In the description of the present application, unless otherwise indicated, the meaning of " plurality " is two or more.
In addition, term " includes " and its any deformation, it is intended that cover and non-exclusive include.
In the description of the present application, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in application.
Term used herein above is not intended to limit exemplary embodiment just for the sake of description specific embodiment.Unless
Context clearly refers else, otherwise singular used herein above "one", " one " also attempt to include plural number.Also answer
When understanding, term " includes " and/or "comprising" used herein above provide stated feature, integer, step, operation,
The presence of unit and/or component, and do not preclude the presence or addition of other one or more features, integer, step, operation, unit,
Component and/or combination thereof.
The application is described further with reference to the accompanying drawings and examples.
As shown in Figure 1, the embodiment of the present application provides a kind of organic electroluminescence display device and method of manufacturing same 1, including what is be oppositely arranged
TFT substrate 2 and cover board 3；TFT substrate 2 is equipped with organic electroluminescence device 4 towards the side of cover board 3, and cover board 3 is towards Organic Electricity
The side of electroluminescence device 4 is equipped with shading heat-conducting layer 5, is radiated with the heat generated to organic electroluminescence device 4.
Specifically, TFT substrate 2 is also equipped with tft array layer 22, for driving organic electroluminescence device 4 to work normally,
Organic electroluminescence device 4 is arranged on tft array layer 22.Organic electroluminescence display device and method of manufacturing same 1 is aobvious including top emission type WOLED
Showing device, herein with no restrictions.
By taking top emission type WOLED display device as an example, during electroluminescent, luminous energy is not converted for heat
Form, for large-sized organic electroluminescence display device and method of manufacturing same 1, a large amount of heat needs to be diffused into outside display device, with dimension
Display device is held to work within the scope of certain temperature, and the service life of organic electroluminescence display device and method of manufacturing same 1 is related with temperature, temperature
Height is unfavorable for the service life of organic electroluminescence display device and method of manufacturing same 1, and if generate hot-spot, and cannot effectively radiate, then
It is easy to cause the defect etc. of the part of organic electroluminescence display device and method of manufacturing same 1.Thus good heat dissipation is necessary.The present embodiment
The light shield layer of 3 side of cover board of illustrative top emission type WOLED display device is improved, light shield layer is set as hiding
Light guide thermosphere 5 can both play the effect of shading, the heat that organic electroluminescence device 4 generates can also timely be conducted
Radiate outside to display device, done in the structure not to organic electroluminescence display device and method of manufacturing same 1 big variation in advance under, mention
The high heat dissipation performance of organic electroluminescence display device and method of manufacturing same 1.
The present embodiment is optional, as shown in Fig. 2, shading heat-conducting layer 5 includes the first light shield layer being sequentially arranged on cover board 3
51, heat-conducting layer 52 and the second light shield layer 53.Heat-conducting layer 52 and other layers of organic electroluminescence display device and method of manufacturing same 1 connect there is no electrical
It connects.Specifically, the material of the first light shield layer 51 and the second light shield layer 53 includes black color blocking, herein with no restrictions；Heat-conducting layer 52
Material include metal material, nonmetallic materials or composite heat conducting material, certain metal material further includes metal alloy compositions, non-
Metal material includes organic material, inorganic material etc., herein with no restrictions.
In the present embodiment, shading heat-conducting layer 5 is " sandwich " structure, i.e. heat-conducting layer 52 is located at the first light shield layer 51 and second
Between light shield layer 53, it is somebody's turn to do " sandwich " structure and plays the role of shading and heat dissipation jointly.It should be noted that heat-conducting layer 52 is with gold
For belonging to material, thick metal heat-conducting layer 52 itself is opaque, but can reflected light.Wherein the first light shield layer 51 is for preventing environment
Light shine directly on metal heat-conducting layer 52 cause it is unnecessary reflective；Wherein the second light shield layer 53 is for preventing organic electroluminescence from sending out
Optical device 4 issue light shine directly on metal heat-conducting layer 52 cause it is unnecessary reflective.By the second light shield layer 53 absorb and
The light filtered out is converted to heat, can be transmitted to metal layer and quickly be spread, and improves ORGANIC ELECTROLUMINESCENCE DISPLAYS dress
1 whole heat dissipation performance is set, and prevents part from generating the point of abnormal heat, it is whole to improve organic electroluminescence display device and method of manufacturing same 1
Reliability.
The present embodiment is optional, and the thickness of heat-conducting layer 52 is greater than 1um, guarantees that the heating conduction of heat-conducting layer 52 is good.
The present embodiment is optional, and as shown in figures 1 and 3, the side of cover board 3 towards organic electroluminescence device 4 is additionally provided with
Colored color blocking layer 6, colored color blocking layer 6 are arranged with 5 spacing side by side of shading heat-conducting layer.Heat-conducting layer 52 in shading heat-conducting layer 5 can be with
Colored color blocking layer 6 connects.Specifically, colored color blocking layer 6 includes red color resistance layer, green color blocking layer and blue color blocking layer, herein
The type of color is not limited.
In the present embodiment, the colored color blocking layer 6 of the different colours on cover board 3 is for filtering the production of organic electroluminescence device 4
Raw white light realizes that true color is shown.Shading heat-conducting layer 5 is arranged between adjacent colored color blocking layer 6, avoids colour mixture and leakage
Light.Heat-conducting layer 52 in shading heat-conducting layer 5 can be contacted directly in colored color blocking layer 6, and colored color blocking layer 6 and light shield layer absorb
Temperature recovery is high after the white light that organic electroluminescence device 4 generates, the partial heat can be passed at this time heat-conducting layer 52 into
Row heat dissipation, ensure that the stability of 1 performance of organic electroluminescence display device and method of manufacturing same.
The present embodiment is optional, and colored color blocking layer 6 and shading heat-conducting layer 5 are set close to the side of organic electroluminescence device 4
Matcoveredn 7 (over coating, OC layer), shields to colored color blocking layer 6 and shading heat-conducting layer 5.
The present embodiment is optional, as shown in Figure 1, organic electroluminescence device 4 includes luminous zone 41 and non-light-emitting area 41, hair
Light area 41 is corresponding with colored color blocking layer 6, and non-light-emitting area 41 is corresponding with shading heat-conducting layer 5.In the present embodiment, shading heat-conducting layer 5 in
Non-light-emitting area 41 is correspondingly arranged, and plays the role of shading to non-light-emitting area 41, while also being produced to some white light not being utilized
Raw heat radiates.
Specifically, organic electroluminescence device 4 includes: the anode layer 43 and pixel that spacing side by side is formed in TFT substrate 2
Definition layer 46；The organic electro luminescent layer 44 being covered on anode layer 43 and pixel defining layer 46；It is covered on organic electroluminescent
Cathode layer 45 on layer 44.Wherein organic electro luminescent layer 44 includes being sequentially coated on anode layer 43 and pixel defining layer 46
Hole injection layer, hole transmission layer, luminescent layer, electron transfer layer, electron injecting layer, certainly, the knot of organic electro luminescent layer 44
Structure is without being limited thereto.The luminescent layer of organic electroluminescence device 4 is in the corresponding region of anode layer 43, and non-light-emitting area 41 is in pixel
The corresponding region of definition layer 46.
As shown in figure 4, the embodiment of the present application provides a kind of production method of organic electroluminescence display device and method of manufacturing same 1, including
Following steps:
S401: TFT substrate is provided, forms organic electroluminescence device on the tft substrate.
As shown in Figure 1, providing TFT substrate 2, organic electroluminescence device 4 is formed in TFT substrate 2.
S402: providing cover board, forms shading heat-conducting layer on the cover board.
As shown in Figure 1, providing cover board 3, shading heat-conducting layer 5 is formed on cover board 3
S403: TFT substrate and cover board are combined, and are located in shading heat-conducting layer with organic electroluminescence device
Between TFT substrate and cover board.
As shown in Figure 1, shading heat-conducting layer 5 is located in organic electroluminescence device 4 after TFT substrate 2 and cover board 3 combine
Between TFT substrate 2 and cover board 3, the heat that shading heat-conducting layer 5 generates organic electroluminescence device 4 radiates.
In the present embodiment, by shading heat-conducting layer 5 and organic electroluminescence device 4 be set as cover board 3 and TFT substrate 2 it
Between, so that shading heat-conducting layer 5 can both play the effect to 4 shading of organic electroluminescence device, organic electroluminescence can also be sent out
The heat that optical device 4 generates, which is timely transmitted to outside display device, to radiate, and improves organic electroluminescence display device and method of manufacturing same 1
Heat dissipation performance.
The present embodiment is optional, and shading heat-conducting layer 5 is formed on cover board 3, comprising:
The first light shield layer 51 is formed on cover board 3；
Heat-conducting layer 52 is covered on the first light shield layer 51；
The second light shield layer 53 is covered on heat-conducting layer 52, forms shading heat-conducting layer 5.
Specifically, the first light shield layer 51 and the second light shield layer 53 are formed by processing procedures such as coating, exposure, development, solidifications, lead
Thermosphere 52 is formed by processing procedures such as film forming, yellow light, etchings.
In the present embodiment, shading heat-conducting layer 5 is " sandwich " structure, i.e. heat-conducting layer 52 is located at the first light shield layer 51 and second
Between light shield layer 53, it is somebody's turn to do " sandwich " structure and plays the role of shading and heat dissipation jointly.It should be noted that heat-conducting layer 52 is with gold
For belonging to material, thick metal heat-conducting layer 52 itself is opaque, but can reflected light.Wherein the first light shield layer 51 is for preventing environment
Light shine directly on metal heat-conducting layer 52 cause it is unnecessary reflective；Wherein the second light shield layer 53 is for preventing organic electroluminescence from sending out
Optical device 4 issue light shine directly on metal heat-conducting layer 52 cause it is unnecessary reflective.By the second light shield layer 53 absorb and
The light filtered out is converted to heat, can be transmitted to metal layer and quickly be spread, and improves ORGANIC ELECTROLUMINESCENCE DISPLAYS dress
1 whole heat dissipation performance is set, and prevents part from generating the point of abnormal heat, it is whole to improve organic electroluminescence display device and method of manufacturing same 1
Reliability.
The present embodiment is optional, and shading heat-conducting layer 5 is formed on cover board 3, further includes:
Colored color blocking layer 6 is formed on the cover board 3 for be formed with shading heat-conducting layer 5, makes colored color blocking layer 6 and shading heat-conducting layer
The setting of 5 spacing side by side；
The protective mulch 7 in colored color blocking layer 6 and shading heat-conducting layer 5.
Specifically, colored color blocking layer 6 is formed by processing procedures such as coating, exposure, development, solidifications.
In the present embodiment, the colored color blocking layer 6 of the different colours on cover board 3 is for filtering the production of organic electroluminescence device 4
Raw white light realizes that true color is shown.7 pairs of protective layer colored color blocking layers 6 and shading heat-conducting layer 5 shield.Shading is thermally conductive
Layer 5 is arranged between adjacent colored color blocking layer 6, avoids colour mixture and light leakage.Heat-conducting layer 52 in shading heat-conducting layer 5 can be direct
It is contacted in colored color blocking layer 6, colored color blocking layer 6 and light shield layer absorb temperature after the white light that organic electroluminescence device 4 generates
Go up high, which can be passed to heat-conducting layer 52 at this time and radiated, ensure that organic electroluminescence display device and method of manufacturing same 1
The stability of performance.
The present embodiment is optional, and organic electroluminescence device 4 is formed in TFT substrate 2, comprising:
Anode layer 43 and pixel defining layer 46 are formed in TFT substrate 2, for defining luminous zone 41 and non-light-emitting area 41；
Organic electro luminescent layer 44 and cathode layer 45 are deposited on above-mentioned anode layer 43 and pixel defining layer 46, are formed organic
Electroluminescent device 4.
Wherein organic electro luminescent layer 44 includes the hole injection being sequentially coated on anode layer 43 and pixel defining layer 46
Layer, hole transmission layer, luminescent layer, electron transfer layer, electron injecting layer, certainly, the structure of organic electro luminescent layer 44 are not limited to
This.
After cover board 3 and TFT substrate 2 are to box, luminous zone 41 is corresponding with colored color blocking layer 6, and non-light-emitting area 41 and shading are thermally conductive
Layer 5 is corresponding.Shading heat-conducting layer 5 plays the role of shading to non-light-emitting area 41, while also producing to some white light not being utilized
Raw heat radiates.
As shown in Figure 1, the embodiment of the present application also provides a kind of production method of organic electroluminescence display device and method of manufacturing same 1, packet
It includes:
Substrate 21 is provided, passes through coating, exposure, development, solidification and the processing procedures such as film forming, yellow light, etching on substrate 21
Tft array layer 22 is formed, TFT substrate 2 is obtained；
Pass through coating, exposure, development, solidification and the processing procedures formation anode layer such as film forming, yellow light, etching in TFT substrate 2
43 and pixel defining layer 46, for defining luminous zone 41 and non-light-emitting area 41；
Organic electro luminescent layer 44 and 45 layers of cathode layer are deposited on above-mentioned anode layer 43 and pixel defining layer 46, are formed with
Organic electroluminescence devices 4；
Cover board 3 is provided, forms the first light shield layer 51 by processing procedures such as coating, exposure, development, solidifications on cover board 3；
Heat-conducting layer 52 is formed by processing procedures such as film forming, yellow light, etchings on the first light shield layer 51；
The second light shield layer 53 is formed by processing procedures such as coating, exposure, development, solidifications on above-mentioned heat-conducting layer 52；First hides
Photosphere 51, heat-conducting layer 52 and the second light shield layer 53 form the shading heat-conducting layer 5 with heat sinking function, and the shading heat-conducting layer 5 is common
Play the role of shading and heat dissipation；
Continued through on the cover board 3 for being formed with shading heat-conducting layer 5 processing procedures such as coating, exposure, development, solidification formed it is multiple
Colored color blocking layer 6 forms true color and shows for filtering the light of the sending of organic electro luminescent layer 44；
Protective layer 7 is continuously formed on the cover board 3 for being formed with shading heat-conducting layer 5 and colored color blocking layer 6, to shading heat-conducting layer
5 form protection with colored color blocking layer 6；
Above-mentioned TFT substrate 2 and cover board 3 are subjected to exactitude position and encapsulation, make shading heat-conducting layer 5, colored color blocking layer 6 and
Organic electroluminescence device 4 is located between TFT substrate 2 and cover board 3, forms organic electroluminescence display device and method of manufacturing same 1.
It should be noted that thick metal layer itself is opaque when heat-conducting layer 52 is metal layer, but meeting reflected light, wherein
The effect of first light shield layer 51 be to prevent environment light shine directly on metal heat-conducting layer 52 cause it is unnecessary reflective；Wherein
The effect of second light shield layer 53 also resides in the light for preventing organic electro luminescent layer 44 from issuing and shines directly on metal heat-conducting layer 52
It causes unnecessary reflective.Heat is converted to by the light that light shield layer and colored color blocking are absorbed and filtered out, can be transmitted to thermally conductive
Layer 52 is quickly spread, and the whole heat dissipation performance of organic electroluminescence display device and method of manufacturing same 1 is improved, and it is abnormal to prevent part from generating
The point of heat improves the whole reliability of organic electroluminescence display device and method of manufacturing same 1.
Although above preferred embodiment is not to limit in conclusion the application is disclosed above with preferred embodiment
The application processed, those skilled in the art are not departing from spirit and scope, can make various changes and profit
Decorations, therefore the protection scope of the application subjects to the scope of the claims.
Claims (10)
1. a kind of organic electroluminescence display device and method of manufacturing same, which is characterized in that including the TFT substrate being oppositely arranged and cover board；
The TFT substrate is equipped with organic electroluminescence device towards the side of the cover board, and the cover board is towards the Organic Electricity
The side of electroluminescence device is equipped with shading heat-conducting layer, is radiated with the heat generated to the organic electroluminescence device.
2. organic electroluminescence display device and method of manufacturing same as described in claim 1, which is characterized in that the shading heat-conducting layer includes successively
The first light shield layer, heat-conducting layer and the second light shield layer on the cover board.
3. organic electroluminescence display device and method of manufacturing same as claimed in claim 2, which is characterized in that the material of the heat-conducting layer includes gold
Belong to material, nonmetallic materials or composite heat conducting material.
4. organic electroluminescence display device and method of manufacturing same as claimed in claim 2, which is characterized in that the thickness of the heat-conducting layer is greater than
1um。
5. organic electroluminescence display device and method of manufacturing same as described in claim 1, which is characterized in that the cover board is towards the Organic Electricity
The side of electroluminescence device is additionally provided with colored color blocking layer, and the colour color blocking layer and the shading heat-conducting layer spacing side by side are arranged.
6. organic electroluminescence display device and method of manufacturing same as claimed in claim 5, which is characterized in that the colour color blocking layer and the screening
Light guide thermosphere is equipped with protective layer close to the side of the organic electroluminescence device.
7. organic electroluminescence display device and method of manufacturing same as claimed in claim 5, which is characterized in that the organic electroluminescence device packet
Luminous zone and non-light-emitting area are included, the luminous zone is corresponding with the colored color blocking layer, and the non-light-emitting area and the shading are thermally conductive
Layer is corresponding.
8. a kind of production method of organic electroluminescence display device and method of manufacturing same characterized by comprising
TFT substrate is provided, forms organic electroluminescence device in the TFT substrate；
Cover board is provided, forms shading heat-conducting layer on the cover board；
The TFT substrate and the cover board are combined, and make the shading heat-conducting layer and the organic electroluminescence device
It is located between the TFT substrate and the cover board, the heat that the shading heat-conducting layer generates the organic electroluminescence device
Amount radiates.
9. the production method of organic electroluminescence display device and method of manufacturing same as claimed in claim 8, which is characterized in that described in the lid
Shading heat-conducting layer is formed on plate, comprising:
The first light shield layer is formed on the cover board；
Heat-conducting layer is covered on first light shield layer；
The second light shield layer is covered on the heat-conducting layer, forms shading heat-conducting layer.
10. the production method of organic electroluminescence display device and method of manufacturing same as claimed in claim 8, which is characterized in that described described
Shading heat-conducting layer is formed on cover board, further includes:
Colored color blocking layer is formed on the cover board for being formed with the shading heat-conducting layer, leads the colored color blocking layer with the shading
The setting of thermosphere spacing side by side；
The protective mulch in the colored color blocking layer and the shading heat-conducting layer.
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| CN201910309265.2A CN110048021A (en) | 2019-04-17 | 2019-04-17 | A kind of organic electroluminescence display device and method of manufacturing same and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008077859A (en) * | 2006-09-19 | 2008-04-03 | Seiko Epson Corp | Electro-optical device and electronic apparatus |
| CN102054398A (en) * | 2009-11-06 | 2011-05-11 | 乐金显示有限公司 | Flat display device with light shielding layer |
| US20140042424A1 (en) * | 2011-07-19 | 2014-02-13 | Panasonic Corporation | Organic electroluminescence display panel and display device |
-
2019
- 2019-04-17 CN CN201910309265.2A patent/CN110048021A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008077859A (en) * | 2006-09-19 | 2008-04-03 | Seiko Epson Corp | Electro-optical device and electronic apparatus |
| CN102054398A (en) * | 2009-11-06 | 2011-05-11 | 乐金显示有限公司 | Flat display device with light shielding layer |
| US20140042424A1 (en) * | 2011-07-19 | 2014-02-13 | Panasonic Corporation | Organic electroluminescence display panel and display device |
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