CN109686872A - A kind of preparation method of OLED device - Google Patents
A kind of preparation method of OLED device Download PDFInfo
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- CN109686872A CN109686872A CN201811577636.7A CN201811577636A CN109686872A CN 109686872 A CN109686872 A CN 109686872A CN 201811577636 A CN201811577636 A CN 201811577636A CN 109686872 A CN109686872 A CN 109686872A
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- oled device
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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
- H10K71/10—Deposition of organic active material
- H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
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- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present invention provides a kind of preparation methods of LED component, include the following steps.One substrate is provided, defines viewing area and the interim applying area (area dummy) outside the edge of display area thereon, wherein the adjacent edge of display area setting in the interim applying area；The device architecture in the viewing area is prepared by solvent method on the substrate and the first solvent coating is carried out to the interim applying area；Remove first solvent being coated on the interim applying area.The present invention provides a kind of preparation methods of OLED device, impact when it offsets solvent volatilization by the way that additional evaporating area is arranged to the device edge of display area s-pixel, so that the film thickness distribution being effectively guaranteed in each row, column s-pixel of the edge of display area is uniform.
Description
Technical field
The present invention relates to luminescence display technical fields, especially, the preparation method of one such OLED device.
Background technique
It is known that the advantages that organic electroluminescence device (OLED) is with its self-luminous, all solid state, high contrast, becomes in recent years
Carry out most potential New Type Display Devices.
Further, preparing OLED device using evaporated device is the main way that current industry produces it.But
The disadvantages of that there are stock utilizations is low for this evaporation process, and uniformity is poor, and industry lacks always effective solution to this
Scheme.And the solwution method processing procedure developed later prepares OLED film, with its stock utilization height, it is excellent that equipment manufacturing cost is low etc.
Point gradually shows its advantage.
Wherein the solwution method processing procedure includes mainly the modes such as spin coating, printing, printing.(or the function that shines will wherein be contained
Can) solution of material is dropped in predetermined position in a manner of fine droplet (pl grades), then by solvent evaporative removal, leave behind molten
The method for the film that matter (luminous or functional material) is formed is referred to as IJP (Ink-Jet Printing), is also most suitable at present
Processing procedure for the preparation of current OLED luminescent device.
The key step that IJP prepares OLED includes:
(1) by the drips of accurate volume in the sub-pixel opening of Panel.
(2) it is dried droplet drying by vacuum decompression into film.
(3) heating anneal is handled, to promote gained OLED membrane quality.
For the above-mentioned display screen produced by IJP printing OLED technology, in addition to the shadow of equipment precision and raw material
Outer, the film thickness shape anomaly generated in process of vacuum drying is rung, is equally an important factor for influencing product quality.
The reason of wherein causing membrane thickness unevenness essentially consists in the IJP processing procedure, the solvent itself printed to
The inhomogeneities of surrounding volatilization, to will cause the display due to the influence of steam when solvent volatilizees in the marking ink
Film thickness uniformity is poor in the area most s-pixel of edge row, column, and is in the presence of concentrating to side.
To solve this problem, research institution both domestic and external proposes several solutions, such as: in steam volatilization direction
Opposite direction setting blowing device or the saturated vapor pressure condition etc. of the solvent will be arranged in cavity.
Summary of the invention
It is an aspect of the invention to provide a kind of preparation method of OLED device, by additional evaporating area is set come
Impact when offsetting solvent volatilization to the device edge of display area s-pixel, so that the viewing area side be effectively guaranteed
Film thickness distribution in the corresponding s-pixel of edge is uniform.
The technical solution adopted by the invention is as follows:
A kind of preparation method of OLED device, comprising the following steps:
One substrate is provided, defines viewing area and the interim applying area (dummy outside the edge of display area thereon
Area), wherein the adjacent edge of display area setting in the interim applying area；
Device architecture in the viewing area prepared by solvent method on the substrate and to the interim applying area
Carry out the first solvent coating；
Remove first solvent being coated on the interim applying area.
Further, in different embodiments, wherein the solvent method processing procedure is IJP processing procedure.
Further, in different embodiments, wherein the first solvent being coated on the interim applying area is the IJP
Not dissolved with the blank solvent of marking ink used in processing procedure.
Further, in different embodiments, wherein being first carry out the interim applying area first on the substrate
The coating of solvent, in the IJP processing procedure for the device architecture for carrying out the viewing area.
Further, in different embodiments, wherein the width of the interim applying area is between 2mm~100mm.
Further, in different embodiments, wherein the edge of the viewing area outward definition have it is described
Interim applying area.
Further, in different embodiments, wherein the end of these interim applying areas is connected wraps the viewing area
In being wrapped in.
Further, in different embodiments, wherein on the interim applying area before being coated with first solvent,
First a kind of organic material is coated on the interim applying area.
Further, in different embodiments, wherein the organic material includes organic resin material.For example, long-chain
Aliphatic ester.
Further, in different embodiments, wherein the organic resin material is coated on by way of printing
On the interim applying area.
Further, in different embodiments, wherein the organic material being coated on the interim applying area and
One solvent is removed by way of heating volatilization.
Compared with the existing technology, the beneficial effects of the present invention are: a kind of OLED device preparation method of the present invention,
Interim applying area is set around viewing area, and is coated on blank solvent used in the IJP processing procedure of viewing area on it, is led to
The volatilization of blank solvent on interim applying area is crossed to volatilize to offset the solvent being coated at the edge of display area to the viewing area
The impact of each row, column s-pixel in edge, thereby may be ensured that the film thickness at the edge of display area in each row, column s-pixel
It is evenly distributed.
And after the IJP processing procedure, by way of heating volatilization by the solvent printed thereon and organic tree
The OLED device preparation is completed in rouge removal.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 be one embodiment of the present invention relates to a kind of OLED device preparation method, for preparing is described
Structure top view of the OLED device in pilot process；
Fig. 2 is the partial side view of OLED device shown in FIG. 1.
The reference numerals are as follows in Fig. 1-2:
The interim applying area 30 in 10 viewing area of substrate 20
Specific embodiment
Below with reference to drawings and examples, to a kind of technical solution of the preparation method of OLED device of the present invention
It is described in further detail.
An embodiment of the invention provides a kind of preparation method of OLED device, comprising the following steps:
One substrate is provided, defines viewing area and the interim applying area outside the edge of display area thereon, wherein institute
State the adjacent edge of display area setting in interim applying area, and in the viewing area surrounding is surrounded on；
It by the volatilizable organic resin after allotment, is coated, is formed in the interim applying area with the mode of coating
The area dummy, the width of the interim applying area of the every side in viewing area between 2mm~100mm, for example, 15mm, 20mm,
30mm, 50mm, 60mm etc., specifically can with the need depending on, and be not limited；
By the blank solvent of marking ink (Ink) be applied to by way of printing on the interim applying area described in have
On machine resin；
On the viewing area carry out IJP processing procedure prepare the device architecture in the viewing area, be directed to using beat
The solvent of printing ink is to be coated on the blank solvent used on the interim applying area；
After the IJP processing procedure of the viewing area, organic tree on the interim applying area is removed with the mode of heating
Rouge and the blank solvent.
Further, wherein coating for material on the interim applying area, can be and beat in the coating apparatus used
Increase by 1 group of additional gluing head mould group on print machine to carry out the organic resin of the interim applying area and the coating of blank solvent.
A kind of OLED device preparation method of the present invention, is arranged interim applying area around viewing area, and
It is coated on blank solvent used in the IJP processing procedure of viewing area thereon, is supported by the volatilization of blank solvent on interim applying area
The impact that the solvent being coated at the edge of display area that disappears volatilizees to row, column s-pixel each at the edge of display area, so as to
To guarantee that the film thickness distribution at the edge of display area in each row, column s-pixel is uniform.
And after the IJP processing procedure, by way of heating volatilization by the solvent printed thereon and organic tree
The OLED device preparation is completed in rouge removal.
Technical scope of the invention is not limited solely to the content in above description, and those skilled in the art can not take off
Under the premise of from technical thought of the invention, many variations and modifications are carried out to above-described embodiment, and these deformations and modification should all
When within the scope of the present invention.
Claims (10)
1. a kind of preparation method of OLED device；Characterized by comprising the following steps:
One substrate is provided, defines viewing area and the interim applying area outside the edge of display area thereon, wherein described face
When the adjacent edge of display area setting in applying area；
The device architecture in the viewing area is prepared by solvent method on the substrate and the interim applying area is carried out
The coating of first solvent；
Remove first solvent being coated on the interim applying area.
2. the preparation method of OLED device according to claim 1；It is characterized in that, wherein the solvent method processing procedure is
IJP processing procedure.
3. the preparation method of OLED device according to claim 2；It is characterized in that, wherein being applied on the interim applying area
First solvent of cloth is used in the IJP processing procedure not dissolved with the blank solvent of marking ink.
4. the preparation method of OLED device according to claim 2；It is characterized in that, being wherein first to carry out on the substrate
The coating of first solvent of the interim applying area, in the IJP processing procedure for the device architecture for carrying out the viewing area.
5. the preparation method of OLED device according to claim 1；It is characterized in that, the wherein width of the interim applying area
Degree is between 2mm~100mm.
6. the preparation method of OLED device according to claim 1；It is characterized in that, the wherein surrounding of the viewing area
Definition has the interim applying area outward at edge, and wherein the end of these interim applying areas is connected and is wrapped in the viewing area
It is interior.
7. the preparation method of OLED device according to claim 1；It is characterized in that, wherein on the interim applying area
It is coated with before first solvent, is first coated with a kind of organic material on the interim applying area.
8. the preparation method of OLED device according to claim 7；It is characterized in that, wherein the organic material includes
Machine resin material.
9. the preparation method of OLED device according to claim 7；It is characterized in that, wherein the organic resin material is
It is coated on by way of printing on the interim applying area.
10. the preparation method of OLED device according to claim 7；It is characterized in that, wherein on the interim applying area
The organic material and the first solvent of coating are removed by way of heating volatilization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811577636.7A CN109686872B (en) | 2018-12-20 | 2018-12-20 | Preparation method of OLED device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811577636.7A CN109686872B (en) | 2018-12-20 | 2018-12-20 | Preparation method of OLED device |
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| Publication Number | Publication Date |
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| CN109686872A true CN109686872A (en) | 2019-04-26 |
| CN109686872B CN109686872B (en) | 2021-03-16 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260554A (en) * | 2014-09-24 | 2015-01-07 | 京东方科技集团股份有限公司 | Ink-jet printing method and device and manufacturing method of display substrate |
| CN104409471A (en) * | 2014-11-04 | 2015-03-11 | 京东方科技集团股份有限公司 | Display substrate, use method of display substrate, and polymer electroluminescent device |
| CN107799575A (en) * | 2017-10-31 | 2018-03-13 | 京东方科技集团股份有限公司 | Display base plate, its manufacture method, display and compensation member paster |
| CN108010953A (en) * | 2017-12-06 | 2018-05-08 | 京东方科技集团股份有限公司 | Organic light emitting display backboard and preparation method thereof, display device |
| CN108063155A (en) * | 2017-12-15 | 2018-05-22 | 京东方科技集团股份有限公司 | Electroluminance display backboard and preparation method thereof, display device |
-
2018
- 2018-12-20 CN CN201811577636.7A patent/CN109686872B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260554A (en) * | 2014-09-24 | 2015-01-07 | 京东方科技集团股份有限公司 | Ink-jet printing method and device and manufacturing method of display substrate |
| CN104409471A (en) * | 2014-11-04 | 2015-03-11 | 京东方科技集团股份有限公司 | Display substrate, use method of display substrate, and polymer electroluminescent device |
| CN107799575A (en) * | 2017-10-31 | 2018-03-13 | 京东方科技集团股份有限公司 | Display base plate, its manufacture method, display and compensation member paster |
| CN108010953A (en) * | 2017-12-06 | 2018-05-08 | 京东方科技集团股份有限公司 | Organic light emitting display backboard and preparation method thereof, display device |
| CN108063155A (en) * | 2017-12-15 | 2018-05-22 | 京东方科技集团股份有限公司 | Electroluminance display backboard and preparation method thereof, display device |
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| CN109686872B (en) | 2021-03-16 |
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