CN106158906A - Display panel structure and manufacture method - Google Patents
Display panel structure and manufacture method Download PDFInfo
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- CN106158906A CN106158906A CN201510202893.2A CN201510202893A CN106158906A CN 106158906 A CN106158906 A CN 106158906A CN 201510202893 A CN201510202893 A CN 201510202893A CN 106158906 A CN106158906 A CN 106158906A
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Abstract
The present invention relates to a kind of display panel structure and manufacture method, this display panel structure includes thin-film transistor array base-plate, it is located at the lower electrode layer on described thin-film transistor array base-plate, it is located at the luminescent layer on described lower electrode layer, it is located at the upper electrode layer on described luminescent layer, it is located at the refractive index matching layers on described upper electrode layer, and base plate for packaging, it is provided with encapsulating structure between described thin-film transistor array base-plate and described base plate for packaging, described refractive index matching layers includes the first organic material layer, the glass transition temperature of described first organic material layer is less than or equal to 80 DEG C, the surface of described first organic material layer is formed with dome shape bulge-structure.The organic material layer using dome shape bulge-structure connects with blanket of nitrogen, it is possible to reduce refractive index matching layers and the total reflection phenomenon on blanket of nitrogen surface, promotes the extraction efficiency of light.
Description
Technical field
The present invention relates to display field, particularly relate to a kind of display panel structure and manufacture method.
Background technology
OLED (Organic Light-Emitting Diode) i.e. Organic Light Emitting Diode.OLED has
There is self luminous characteristic, use the thinnest coating of organic material and glass substrate, when an electric current passes through it,
Organic material will be luminous, and OLED display screen visible angle is big, and can significantly save
Saving electric energy, therefore the application of OLED is more and more extensive now.AMOLED(Active Matrix
Organic Light Emitting Diode, active matrix display panel panel) compare traditional liquid crystal
Panel, has the features such as response speed is fast, contrast is high, visual angle is wide.Additionally AMOLED also has
There is self luminous characteristic, be not required to use backlight, therefore more frivolous than traditional liquid crystal panel, also may be used
To save the cost of backlight module.Many advantages make it have good application prospect.
The display floater of OLED and AMOLED is in existing structure, during because of follow-up encapsulation, and refraction
Rate matching layer contacts with blanket of nitrogen, and the refractive index of nitrogen is about 1, and the refractive index of refractive index matching layers
Higher than 1, therefore can there is total reflection phenomenon at blanket of nitrogen interface, cause display floater goes out light loss,
The light extraction efficiency making display floater is relatively low.
Summary of the invention
It is an object of the invention to overcome the defect of prior art, it is provided that display panel structure and making side
Method, the light extraction efficiency that can solve to cause because of total reflection phenomenon present in existing display panel structure is relatively low
Problem.
The technical scheme realizing above-mentioned purpose is:
One display panel structure of the present invention, including thin-film transistor array base-plate, is located at described thin film
Lower electrode layer, the luminescent layer being located on described lower electrode layer on transistor (TFT) array substrate, be located at described
Electrode layer on luminescent layer, the refractive index matching layers being located on described electrode layer and base plate for packaging,
Encapsulating structure, described refractive index it is provided with between described thin-film transistor array base-plate and described base plate for packaging
Matching layer includes that the first organic material layer, the glass transition temperature of described first organic material layer are less than
Equal to 80 DEG C, the surface of described first organic material layer is formed with dome shape bulge-structure.
Use the organic material layer of dome shape bulge-structure as refractive index matching layers, it is possible to reduce existing
There is total reflection phenomenon present in structure, promote the extraction efficiency of light.
Further improvement is that of display panel structure of the present invention, described refractive index matching layers also includes setting
The second organic material layer under described first organic material layer, the glass of described second organic material layer
Glass transition temperature is more than or equal to 100 DEG C.
Further improvement is that of display panel structure of the present invention, the refraction of described second organic material layer
Rate is higher than the refractive index of described first organic material layer.
Further improvement is that of display panel structure of the present invention, the material of described first organic material layer
For TPD.
Further improvement is that of display panel structure of the present invention, the material of described second organic material layer
For MADN.
The manufacture method of a kind of display floater of the present invention, including:
Lower electrode layer is made on thin-film transistor array base-plate；
Luminescent layer is made on described lower electrode layer；
Upper electrode layer is made on described luminescent layer；
Making refractive index matching layers on described upper electrode layer, described refractive index matching layers includes passing through
The first organic material layer that the evaporation glass transition temperature organic material less than or equal to 80 DEG C is formed；
Described first organic material layer is carried out 80 DEG C and anneals 3 hours to form dome shape bulge-structure；
Upper cover in described first organic material layer sets base plate for packaging, thin with described in described base plate for packaging
It is coated with encapsulating structure between film transistor array base palte, brilliant with described thin film to encapsulate described base plate for packaging
Body pipe array base palte.
Further improvement is that of the manufacture method of display floater of the present invention, described refractive index matching layers is also
Including the second organic material layer being located under described first organic material layer, described second organic material
Layer uses the glass transition temperature material more than or equal to 100 DEG C to make and is formed.
Further improvement is that of the manufacture method of display floater of the present invention, described second organic material layer
Refractive index higher than the refractive index of described first organic material layer.
Further improvement is that of the manufacture method of display floater of the present invention, described second organic material layer
Material be MADN.
Further improvement is that of the manufacture method of display floater of the present invention, described first organic material layer
Material be TPD.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of display panel structure of the present invention；And
Fig. 2 is the structural representation of the second embodiment of display panel structure of the present invention.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
The invention provides a kind of display panel structure and manufacture method, relate to OLED display panel
With AMOLED display panel structure, for improving the light extraction efficiency of display floater, use vitrification
Material making refractive index matching layers (IML) that transition temperature (Tg) is relatively low, defines and has dome
First organic material layer of protruding (Domelike) structure of shape, this dome shape bulge-structure make its with
The total reflection on blanket of nitrogen surface reduces, and can be effectively improved the light extraction efficiency of display floater.It addition, pass through
Arranging the second organic material layer under the first organic material layer, the second organic material layer uses vitrification
The material that temperature is higher is made, owing to the refractive index of the second organic material layer is higher than first organic material
The refractive index of the bed of material, contributes to the proposition of light, improves the light extraction efficiency of display floater further.Below
In conjunction with accompanying drawing, display panel structure of the present invention and manufacture method are illustrated.
As shown in Figure 1, it is shown that the first embodiment of AMOLED display panel structure of the present invention
Structural representation.Below in conjunction with Fig. 1, AMOLED display panel structure of the present invention is illustrated.
As it is shown in figure 1, AMOLED display panel structure of the present invention includes being located at thin film transistor (TFT) battle array
Lower electrode layer 10 on row substrate 11, be located at the organic luminous layer 12 on lower electrode layer 10,
Be located at upper electrode layer 13 on organic luminous layer 12, refractive index matching layers 14, blanket of nitrogen 15, with
And base plate for packaging 16, between thin-film transistor array base-plate 11 and base plate for packaging 16, it is provided with encapsulation
Structure 17, is encapsulated display floater by encapsulating structure 17.It is preferred that this upper electrode layer 13 is
Cathode layer, lower electrode layer 10 is anode layer.In the present embodiment, refractive index matching layers 14 includes
One organic material layer, the glass transition temperature of this first organic material layer is less than or equal to 80 DEG C, and
Surface is formed with protruding (Domelike) structure 143 of dome shape.The end face of the first organic material layer is
Dome shape bulge-structure 143, this dome shape bulge-structure makes its interface with blanket of nitrogen 15
Total reflection reduces, and effectively promotes the removal efficiency of light, increases the light emission rate of display floater.
As shown in Figure 2, it is shown that the structural representation of the second embodiment of display panel structure of the present invention
Figure.Below in conjunction with Fig. 2, display panel structure of the present invention is illustrated.
As in figure 2 it is shown, the second embodiment of display panel structure of the present invention is compared with first embodiment,
Refractive index matching layers also includes being located at the second organic material layer under the first organic material layer 141
142, the glass transition temperature of this second organic material layer 142 is more than or equal to 100 DEG C.This is second years old
The refractive index of organic material layer 142 is higher than the refractive index of described first organic material layer 141 and between the
Between the refractive index of one organic material layer 141 and the refractive index of upper electrode layer 13, can be further
Improve the proposition of light, improve the light extraction efficiency of display floater.
As a better embodiment of the present invention, the second organic material layer uses refractive index to be more than 1.9,
The glass transition temperature material more than 110 DEG C is made, it is preferred that use benzidine series, folding
Rate of penetrating is more than 1.9, and glass transition temperature is at about 130 DEG C, and formula is as follows:
First organic material layer uses refractive index less than 1.8, and glass transition temperature is less than or equal to 80 DEG C
Material make, after carrying out heat treatment, it is protruding that the surface of the first organic material layer will form dome shape
Structure, effectively reduces the total reflection of itself and blanket of nitrogen surface, improves the light extraction efficiency of display floater.
The material of the first organic material layer can select NPB (N, N '-two (1-naphthyl)-N, N '-diphenyl-1,1 '-
Biphenyl-4-4 '-diamidogen), TPD (triphenyl diamine derivant) material, glass transition temperature is little
In 80 DEG C, refractive index is about 1.7.
The material of the second organic material layer can select MADN (two (2-naphthyl) anthracene) material.
Display panel structure of the present invention by arranging the first organic material layer, this first organic material layer with
Blanket of nitrogen is disposed adjacent, and this first organic material layer is dome shape bulge-structure, uses dome shape protruding
Structure makes it reduce with the total reflection on nitrogen surface, improves the light extraction efficiency of display floater.Second
Organic material layer uses higher than the refractive index of the first organic material layer, high organic of glass transition temperature
Material, more contributes to the proposition of the light of display panel structure, improves the light of display floater further
Extraction efficiency.
Below the manufacture method of display floater of the present invention is illustrated.
As it is shown in figure 1, the manufacture method of a kind of display floater of the present invention includes:
Lower electrode layer 10 is made on thin-film transistor array base-plate 11；
Luminescent layer 12 is made on lower electrode layer 10；
On luminescent layer 12, make upper electrode layer 13, upper electrode layer can be made to use evaporation mode
13；
Making refractive index matching layers 14 on upper electrode layer 13, this refractive index matching layers 14 includes
The first organic material formed by the evaporation glass transition temperature organic material less than or equal to 80 DEG C
Layer；
First organic material layer is carried out 80 DEG C annealing 3 hours to form dome shape bulge-structure, 143
Owing to the glass transition temperature of the first organic material layer is relatively low, it changes pattern when needing certain
Between, therefore selecting thermal annealing 3 hours, display floater device is caused damage by the too high meeting of annealing temperature, therefore
And select to carry out thermal annealing at 80 DEG C；
Upper cover in the first organic material layer sets base plate for packaging 16, at base plate for packaging 16 and film crystal
It is coated with encapsulating structure 17 between pipe array base palte 11, by encapsulating structure 17, display floater is encapsulated
Get up.It is preferred that before encapsulation, fill between base plate for packaging 16 and the first organic material layer
Nitrogen, to form blanket of nitrogen 15, the first organic material layer of this dome shape bulge-structure, can reduce it
With the total reflection on blanket of nitrogen 15 surface, it is effectively improved the light extraction efficiency of display floater.
As a better embodiment of the manufacture method of display floater of the present invention, refractive index matching layers
14 also include the second organic material layer 142 being located under the first organic material layer 141, and this second has
The material that machine material layer 142 uses glass transition temperature to be more than or equal to 100 DEG C makes and is formed.And the
The refractive index of two organic material layers 142 is higher than the refractive index of the first organic material layer.Light is high from refractive index
Layer be located at the low layer of refractive index and may consequently contribute to the proposition of light, therefore, the second organic material layer 142
Be located under the first organic material layer 141, the light extraction efficiency of display floater can be improved further.
It is preferred that the refractive index of this second organic material layer 142 is higher than described first organic material layer 141
Refractive index and between the refractive index of the first organic material layer 141 and the refractive index of upper electrode layer 13
Between, can further improve the proposition of light, improve the light extraction efficiency of display floater.
As a better embodiment of the present invention, the second organic material layer uses refractive index to be more than 1.9,
The glass transition temperature material more than 110 DEG C is made, it is preferred that use benzidine series, folding
Rate of penetrating is more than 1.9, and glass transition temperature is at about 130 DEG C, and formula is as follows:
First organic material layer uses refractive index less than 1.8, and glass transition temperature is less than or equal to 80 DEG C
Material make, after carrying out heat treatment, it is protruding that the surface of the first organic material layer will form dome shape
Structure, effectively reduces the total reflection of itself and blanket of nitrogen surface, improves the light extraction efficiency of display floater.
The material of the first organic material layer can select NPB (N, N '-two (1-naphthyl)-N, N '-diphenyl-1,1 '-
Biphenyl-4-4 '-diamidogen), TPD material, glass transition temperature be less than 80 DEG C, refractive index is 1.7
Left and right.
The material of the second organic material layer can select MADN material.
Having the beneficial effect that of the manufacture method of display floater of the present invention
The material using glass transition temperature relatively low makes refractive index matching layers, makes it by thermal annealing
There is dome shape bulge-structure, reduce the total reflection phenomenon of itself and blanket of nitrogen surface, improve the taking-up of light
Efficiency.Use under the organic material layer that glass transition temperature is relatively low, make glass transition temperature
Higher organic material layer, can improve the light extraction efficiency of display floater further.And the present invention shows
The manufacture method of panel is convenient and easy, and low cost.
Above in association with accompanying drawing embodiment, the present invention is described in detail, ordinary skill people in this area
The present invention can be made many variations example by member according to the above description.Thus, some details in embodiment
Should not constitute limitation of the invention, the present invention by the scope that defines using appended claims as this
The protection domain of invention.
Claims (10)
1. a display panel structure, it is characterised in that include thin-film transistor array base-plate, set
Lower electrode layer on described thin-film transistor array base-plate, the luminescence being located on described lower electrode layer
Layer, be located at the upper electrode layer on described luminescent layer, the refractive index match being located on described upper electrode layer
Layer and base plate for packaging, be provided with envelope between described thin-film transistor array base-plate and described base plate for packaging
Assembling structure, described refractive index matching layers includes the first organic material layer, described first organic material layer
Glass transition temperature is less than or equal to 80 DEG C, and the surface of described first organic material layer is formed with dome
Shape bulge-structure.
2. display panel structure as claimed in claim 1, it is characterised in that described refractive index
Joining layer and also include being located at the second organic material layer under described first organic material layer, described second has
The glass transition temperature of machine material layer is more than or equal to 100 DEG C.
3. display panel structure as claimed in claim 2, it is characterised in that described second organic
The refractive index of material layer is higher than the refractive index of described first organic material layer.
4. the display panel structure as described in any one of claims 1 to 3, it is characterised in that institute
The material stating the first organic material layer is TPD.
5. display panel structure as claimed in claim 2 or claim 3, it is characterised in that described second
The material of organic material layer is MADN.
6. the manufacture method of a display floater, it is characterised in that including: in thin film transistor (TFT) battle array
Lower electrode layer is made on row substrate；
Luminescent layer is made on described lower electrode layer；
Upper electrode layer is made on described luminescent layer；
Making refractive index matching layers on described upper electrode layer, described refractive index matching layers includes passing through
The first organic material layer that the evaporation glass transition temperature organic material less than or equal to 80 DEG C is formed；
Described first organic material layer is carried out 80 DEG C and anneals 3 hours to form dome shape bulge-structure；
Upper cover in described first organic material layer sets base plate for packaging, thin with described in described base plate for packaging
It is coated with encapsulating structure between film transistor array base palte, brilliant with described thin film to encapsulate described base plate for packaging
Body pipe array base palte.
7. the manufacture method of display floater as claimed in claim 6, it is characterised in that described folding
The rate matching layer of penetrating also includes being located at the second organic material layer under described first organic material layer, described
Second organic material layer uses the glass transition temperature material more than or equal to 100 DEG C to make and is formed.
8. the manufacture method of display floater as claimed in claim 7, it is characterised in that described the
The refractive index of two organic material layers is higher than the refractive index of described first organic material layer.
9. the manufacture method of display floater as claimed in claim 7 or 8, it is characterised in that institute
The material stating the second organic material layer is MADN.
10. the manufacture method of the display floater as described in any one of claim 6 to 8, its feature exists
In, the material of described first organic material layer is TPD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202893.2A CN106158906A (en) | 2015-04-24 | 2015-04-24 | Display panel structure and manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202893.2A CN106158906A (en) | 2015-04-24 | 2015-04-24 | Display panel structure and manufacture method |
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| Publication Number | Publication Date |
|---|---|
| CN106158906A true CN106158906A (en) | 2016-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510202893.2A Pending CN106158906A (en) | 2015-04-24 | 2015-04-24 | Display panel structure and manufacture method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585663A (en) * | 2017-09-29 | 2019-04-05 | 上海和辉光电有限公司 | A kind of method and OLED device preparing OLED device |
| WO2019127757A1 (en) * | 2017-12-27 | 2019-07-04 | 武汉华星光电半导体显示技术有限公司 | Display device |
| CN111430571A (en) * | 2020-04-09 | 2020-07-17 | 武汉华星光电半导体显示技术有限公司 | O L ED display panel |
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| CN1700826A (en) * | 2004-05-20 | 2005-11-23 | 株式会社半导体能源研究所 | Light-emitting element and display device |
| US20090302744A1 (en) * | 2008-06-04 | 2009-12-10 | Lg Display Co., Ltd. | Organic electro-luminescent display device and manufacturing method thereof |
| CN103490020A (en) * | 2013-09-30 | 2014-01-01 | 京东方科技集团股份有限公司 | Organic electroluminescence device, manufacturing method thereof, display device and illuminating device |
| CN103972415A (en) * | 2014-05-08 | 2014-08-06 | 京东方科技集团股份有限公司 | OLED light-emitting device, manufacturing method thereof and display device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1700826A (en) * | 2004-05-20 | 2005-11-23 | 株式会社半导体能源研究所 | Light-emitting element and display device |
| US20090302744A1 (en) * | 2008-06-04 | 2009-12-10 | Lg Display Co., Ltd. | Organic electro-luminescent display device and manufacturing method thereof |
| CN103490020A (en) * | 2013-09-30 | 2014-01-01 | 京东方科技集团股份有限公司 | Organic electroluminescence device, manufacturing method thereof, display device and illuminating device |
| CN103972415A (en) * | 2014-05-08 | 2014-08-06 | 京东方科技集团股份有限公司 | OLED light-emitting device, manufacturing method thereof and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109585663A (en) * | 2017-09-29 | 2019-04-05 | 上海和辉光电有限公司 | A kind of method and OLED device preparing OLED device |
| WO2019127757A1 (en) * | 2017-12-27 | 2019-07-04 | 武汉华星光电半导体显示技术有限公司 | Display device |
| CN111430571A (en) * | 2020-04-09 | 2020-07-17 | 武汉华星光电半导体显示技术有限公司 | O L ED display panel |
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Application publication date: 20161123 |