CN106653805A - Color mixture-prevention organic light emitting display device and manufacturing method thereof - Google Patents
Color mixture-prevention organic light emitting display device and manufacturing method thereof Download PDFInfo
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- CN106653805A CN106653805A CN201611072355.7A CN201611072355A CN106653805A CN 106653805 A CN106653805 A CN 106653805A CN 201611072355 A CN201611072355 A CN 201611072355A CN 106653805 A CN106653805 A CN 106653805A
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- layer
- light emitting
- organic light
- emitting display
- photoresistance
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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
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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
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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
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/15—Hole transporting layers
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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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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present invention discloses a color mixture-prevention organic light emitting display device. The color mixture-prevention organic light emitting display device comprises a hole injection layer, hole transport layers, a light emitting layer, an electron transport layer and an electron injection layer which are stacked sequentially; adjacent hole transport layers of two colors are arranged in an insulated manner. The present invention also discloses a manufacturing method of the organic light emitting display device. According to the color mixture-prevention organic light emitting display device and the manufacturing method thereof of the invention, the hole transport layers are manufactured through using a photolithography technology, so that the adjacent hole transport layers of two colors are isolated from each other, so that the hole transport layers cannot move freely, and therefore, the problem of color mixture of adjacent color layers can be solved.
Description
Technical field
The present invention relates to organic light emitting display technical field, more particularly to a kind of organic light emitting display for avoiding colour mixture
And its manufacture method.
Background technology
OLED (Organic light-emitting Diode) is Organic Light Emitting Diode, by organic layer from main light emission
Shown, due to not needing backlight, therefore with faster response time, bigger visible angle, higher contrast
And be most potential flat panel display generally acknowledged at present the features such as lighter component quality, lower power consumption.
At present, Organic Light Emitting Diode is made up of the sandwich construction with difference in functionality.Per layer material build-in attribute and
It is very important with the compatibility of other layer materials.In sandwich construction, generally include hole injection layer (HIL), hole and pass
Defeated layer (HTL), luminescent layer (EML), electron transfer layer (ETL) and electron injecting layer (EIL) etc..Hole injection layer (HIL)
It is deposited with usually as common layer (common layer) with hole transmission layer (HTL).So, because hole can be whole
Transport layer is moved freely, and when one of color is lighted, the subregion neighbouring with this color also can light, and is occurred
The phenomenon of colour mixture, have impact on the performance of OLED components and parts.
The content of the invention
In view of the deficiency that prior art is present, the invention provides a kind of organic light emitting display for avoiding colour mixture and its
Manufacture method.
In order to realize above-mentioned purpose, following technical scheme is present invention employs：
A kind of organic light emitting display for avoiding colour mixture, including the hole injection layer, hole transmission layer for stacking gradually, sends out
Photosphere, electron transfer layer and electron injecting layer, insulation set between the hole transmission layer of adjacent two kinds of colors.
Used as one of which embodiment, interval forms gap between the hole transmission layer of adjacent two kinds of colors.
Used as one of which embodiment, the gap is filled with transparent insulating layer.
Used as one of which embodiment, the luminescent layer is partially filled in the gap.
Another object of the present invention is to provide a kind of manufacture method of the organic light emitting display for avoiding colour mixture, wrap
Include：
It is deposited with one layer of hole injection layer successively in pixel defining layer；
One layer of photoresistance is coated with hole injection layer, the subpixel matching of mask plate and pixel defining layer is made, is then exposed；
Develop and toast, leave the photoresistance part in the corresponding top of sub-pixel of hole injection layer；
Hole transmission layer is formed on hole injection layer and photoresistance part；
Peel off photoresistance part；
Luminescent layer, electron transfer layer and electron injecting layer are sequentially formed on hole transmission layer.
Used as one of which embodiment, the photoresistance is negativity photoresistance.
Used as one of which embodiment, the photoresistance contains ester by halogen solvent, light acid producing agent, containing fluorine-based and sour water solution
The polymer monomers composition of base group monomer.
Used as one of which embodiment, the halogen solvent is hydrofluoroether.
The present invention is isolated the hole transmission layer of close on two kinds of colors by making hole transmission layer with photoetching technique
Come, prevent hole from freely moving, efficiently solve the colour mixture problem occurred between neighbouring color.
Description of the drawings
Fig. 1 is the Chief manufacturing process schematic diagram of the organic light emitting display of the embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further described.It should be appreciated that specific embodiment described herein is only to explain the present invention, and without
It is of the invention in limiting.
Refering to Fig. 1, a kind of of the embodiment of the present invention avoids the organic light emitting display of colour mixture from including the sky for stacking gradually
Cave implanted layer 11, hole transmission layer 12 and other layers 13 etc., other layers 13 include that what is set gradually on hole transmission layer 12 lights
Layer, electron transfer layer and electron injecting layer, wherein, insulation set between the hole transmission layer 12 of adjacent two kinds of colors.
It is preferred that interval between the hole transmission layer 12 of two kinds of adjacent colors is formed into gap 120.Due to adjacent color
Hole transmission layer 12 between separated and be unable to intercommunication so that hole can not move freely through, can only be in the son of current color
Move in the corresponding hole transmission layer 12 of pixel, be not in the colour mixture problem closed between color.Can be single at the gap 120
Solely filled with transparent insulating layer, or luminescent layer.
The history of photoetching technique development had more than 200 years, and technical equipment is ripe, with perfect technological process, photoetching
The material (such as photoresistance, developer solution) applied in technology is cheap.The present invention aids in manufacture to intercept two kinds by photoresistance
The method of hole transport is solving the problems, such as this colour mixture of RGB OLED components and parts between color.The organic light emitting display
Manufacture method mainly include：
Pixel defining layer 10 is made on substrate；
It is deposited with one layer of hole injection layer 11 successively in pixel defining layer 10；
One layer of photoresistance R is coated with hole injection layer 11, the subpixel matching of mask plate 1 and pixel defining layer 10 is made, so
Post-exposure (such as step A in Fig. 1)；
Develop and toast, leave the photoresistance part (step in such as Fig. 1 in the corresponding top of sub-pixel of hole injection layer 11
Rapid B)；
Hole transmission layer 12 (step C in such as Fig. 1) is formed on hole injection layer 11 and photoresistance part；
Peel off photoresistance part (such as step D in Fig. 1)；
Luminescent layer, electron transfer layer and the electron injecting layer (step in such as Fig. 1 are sequentially formed on hole transmission layer 12
E), last evaporation cathode.
The step of making anode and pixel defining layer 10 here is omitted, and can be made using existing various techniques.Due to
This manufacture method it is cheap, it is not necessary to add unnecessary step, it is not required that using fine metal mask version.It is preferred that
Photoresistance R is negativity photoresistance, by the position for pre-setting mask plate 1 so as to which the area of the pattern of hollow out is just to sub-pixel institute
In region, the negativity photoresistance Jing after UV (ultraviolet) exposures does not dissolve in developer solution, and the unexposed region of negativity photoresistance will be molten
It is cleaned out in developer solution, leaves the region through exposing, it is solid with mask plate pattern part photoresistance always after baking
Change is formed in the surface of hole injection layer 11, then by hole transmission layer 12 being formed on hole injection layer 11, being shelled using stripper
The gap 120 of cut-off is formed by fall photoresistance between hole transmission layer 12.
Preferably, photoresistance R is by halogen solvent, light acid producing agent, containing copolymerization of the fluorine-based and sour water solution containing ester group monomer
Thing monomer composition, the halogen solvent is preferably hydrofluoroether.This kind of photoresist has compatibility well with organic material, therefore
The attribute of each layer organic material of organic luminescent device will not be destroyed, further, preferably from good with organic material compatibility
Developer solution and stripper.
In sum, the present invention makes hole transmission layer by using photoetching technique, by the hole of close on two kinds of colors
Transport layer is kept apart, and prevents hole from freely moving, and efficiently solves the colour mixture problem occurred between neighbouring color.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of without departing from the application principle, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (8)
1. a kind of organic light emitting display for avoiding colour mixture, it is characterised in that including the hole injection layer (11) for stacking gradually,
Hole transmission layer (12), luminescent layer, electron transfer layer and electron injecting layer, the hole transmission layer (12) of adjacent two kinds of colors
Between insulation set.
2. organic light emitting display according to claim 1, it is characterised in that the hole transport of two kinds of adjacent colors
Interval forms gap (120) between layer (12).
3. organic light emitting display according to claim 3, it is characterised in that the gap (120) is filled with transparent
Insulating barrier.
4. organic light emitting display according to claim 3, it is characterised in that the luminescent layer is partially filled in described
In gap (120).
5. a kind of manufacture method of the organic light emitting display for avoiding colour mixture, it is characterised in that include：
It is deposited with one layer of hole injection layer (11) successively in pixel defining layer (10)；
One layer of photoresistance (R) is coated with hole injection layer (11), the sub-pixel of mask plate (1) and pixel defining layer (10) is made
Match somebody with somebody, then expose；
Develop and toast, leave the photoresistance part in the corresponding top of sub-pixel of hole injection layer (11)；
Hole transmission layer (12) is formed on hole injection layer (11) and photoresistance part；
Peel off photoresistance part；
Luminescent layer, electron transfer layer and electron injecting layer are sequentially formed on hole transmission layer (12).
6. the manufacture method of organic light emitting display according to claim 5, it is characterised in that the photoresistance (R) is
Negativity photoresistance.
7. the manufacture method of organic light emitting display according to claim 6, it is characterised in that the photoresistance (R) by
Halogen solvent, light acid producing agent, the polymer monomers containing ester group monomer containing fluorine-based and sour water solution are constituted.
8. the manufacture method of organic light emitting display according to claim 7, it is characterised in that the halogen solvent is
Hydrofluoroether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611072355.7A CN106653805A (en) | 2016-11-29 | 2016-11-29 | Color mixture-prevention organic light emitting display device and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611072355.7A CN106653805A (en) | 2016-11-29 | 2016-11-29 | Color mixture-prevention organic light emitting display device and manufacturing method thereof |
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| CN106653805A true CN106653805A (en) | 2017-05-10 |
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| CN201611072355.7A Pending CN106653805A (en) | 2016-11-29 | 2016-11-29 | Color mixture-prevention organic light emitting display device and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731883A (en) * | 2017-11-17 | 2018-02-23 | 深圳市华星光电半导体显示技术有限公司 | OLED display and preparation method thereof |
| WO2020258984A1 (en) * | 2019-06-25 | 2020-12-30 | 京东方科技集团股份有限公司 | Manufacturing method for display substrate, display substrate, and display device |
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| US20140284560A1 (en) * | 2013-03-22 | 2014-09-25 | Woo Sub SHIM | Organic light emitting diode, organic light emitting display panel including the same, and method of manufacturing the organic light emitting display panel |
| CN104167497A (en) * | 2014-08-14 | 2014-11-26 | 京东方科技集团股份有限公司 | Organic light-emitting display device and manufacturing method and display unit thereof |
| CN104576951A (en) * | 2013-10-29 | 2015-04-29 | 三星显示有限公司 | Organic light-emitting device and method of manufacturing the same |
| CN105655377A (en) * | 2014-11-28 | 2016-06-08 | 株式会社日本显示器 | Display device |
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2016
- 2016-11-29 CN CN201611072355.7A patent/CN106653805A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20140284560A1 (en) * | 2013-03-22 | 2014-09-25 | Woo Sub SHIM | Organic light emitting diode, organic light emitting display panel including the same, and method of manufacturing the organic light emitting display panel |
| CN104576951A (en) * | 2013-10-29 | 2015-04-29 | 三星显示有限公司 | Organic light-emitting device and method of manufacturing the same |
| CN104167497A (en) * | 2014-08-14 | 2014-11-26 | 京东方科技集团股份有限公司 | Organic light-emitting display device and manufacturing method and display unit thereof |
| CN105655377A (en) * | 2014-11-28 | 2016-06-08 | 株式会社日本显示器 | Display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731883A (en) * | 2017-11-17 | 2018-02-23 | 深圳市华星光电半导体显示技术有限公司 | OLED display and preparation method thereof |
| US10784471B2 (en) | 2017-11-17 | 2020-09-22 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Organic light emitting display device and method of making the same |
| WO2020258984A1 (en) * | 2019-06-25 | 2020-12-30 | 京东方科技集团股份有限公司 | Manufacturing method for display substrate, display substrate, and display device |
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