CN112018256A - OLED display panel with fluorescent emitter and preparation method thereof - Google Patents
OLED display panel with fluorescent emitter and preparation method thereof Download PDFInfo
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- CN112018256A CN112018256A CN202010929249.6A CN202010929249A CN112018256A CN 112018256 A CN112018256 A CN 112018256A CN 202010929249 A CN202010929249 A CN 202010929249A CN 112018256 A CN112018256 A CN 112018256A
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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]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
- H10K50/13—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light comprising stacked EL layers within one EL unit
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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
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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
Abstract
The invention is applicable to the technical field of OLED display panels, and provides an OLED display panel with a fluorescent emitter and a preparation method thereof. By arranging the substrate mechanism with the buffer layer and the blue light prevention layer, effective buffer performance can be provided through the buffer layer, and a blue light prevention function is provided through the blue light prevention layer, so that the display panel has longer service life and better eye protection effect.
Description
Technical Field
The invention belongs to the technical field of OLED display panels, and particularly relates to an OLED display panel with a fluorescent emitter and a preparation method thereof.
Background
Organic light-emitting diodes (OLEDs) are widely considered to be a next generation of novel display and lighting technology due to their unique advantages, such as fast response speed, high color quality, lightness, thinness, low manufacturing cost, and flexible and transparent manufacturing.
The existing OLED display panel has insufficient display brightness, and can cause the problem of poor OLED display effect in some strong light environments.
Disclosure of Invention
The invention provides an OLED display panel with a fluorescent emitter and a preparation method thereof, and aims to solve the problems in the prior art.
The present invention is thus realized, an OLED display panel with a fluorescent emitter, comprising a substrate means and a light emitting device;
the substrate mechanism comprises a first substrate, a buffer layer and a blue light prevention layer; the first substrate is provided with a first surface and a second surface, and the blue light prevention layer is formed on the first surface of the first substrate;
the light-emitting device comprises an anode, a hole injection layer, a hole transport layer, a light-emitting layer, a fluorescence emission layer, an electron transport layer, an electron injection layer and a cathode; the anode is formed on the second surface of the first substrate, the hole injection layer is formed on the upper surface of the anode, the hole transport layer is formed on the upper surface of the hole injection layer, the light emitting layer is formed on the upper surface of the hole injection layer, the fluorescent emission layer is formed on the upper surface of the light emitting layer, the electron transport layer is formed on the upper surface of the fluorescent emission layer, the electron injection layer is formed on the upper surface of the electron transport layer, the cathode is formed on the upper surface of the electron injection layer, and the buffer layer is formed on the upper surface of the cathode.
Preferably, the fluorescence emitting layer is made of Alq3 material doped with fluorescence emitter.
Preferably, a scratch-resistant coating is formed on one side surface of the blue light prevention layer far away from the substrate.
Preferably, a second substrate is arranged on the upper surface of the cathode;
and a pressure sensitive adhesive layer is formed on the surface of one side of the substrate, which is far away from the cathode, and the pressure sensitive adhesive layer is attached to the buffer layer.
Preferably, the blue light prevention layer is obtained by melting and mixing tackifying resin, a softening agent, an anti-aging agent and a blue light absorbent, uniformly coating the mixture on the first surface of the first substrate, and drying and curing the mixture at 50-70 ℃.
Preferably, the pressure-sensitive adhesive layer is prepared by melting and mixing natural rubber, tackifying resin, softening agent and ultraviolet absorbent, uniformly coating the mixture on the two surfaces of the substrate, and drying and curing the mixture at 50-70 ℃.
Preferably, the first substrate and the second substrate are both made of PE materials and have the thickness of 25-40 μm.
Preferably, the scratch-resistant coating is obtained by adding a curing agent into silica gel, uniformly coating the silica gel on a polyester film, and drying and curing the polyester film at the temperature of 50-70 ℃.
The invention also provides a preparation method of the OLED display panel with the fluorescent emitter, which comprises the following steps:
s1, providing a first substrate which is provided with a first surface and a second surface;
s2, attaching a blue light prevention layer on the first surface of the first substrate;
s3, attaching a light emitting device on the second surface of the first substrate;
and S4, attaching a buffer layer on one side of the light-emitting device far away from the substrate.
Compared with the prior art, the invention has the beneficial effects that: according to the OLED display panel with the fluorescent emitter and the preparation method thereof, the light-emitting device with the fluorescent emitting layer and the light-emitting layer is arranged, so that when the light-emitting device works, color display can be provided through the light-emitting layer, the display brightness is improved through the fluorescent emitting layer, and the display brightness of the display panel can be ensured in some strong light environments.
By arranging the substrate mechanism with the buffer layer and the blue light prevention layer, effective buffer performance can be provided through the buffer layer, and a blue light prevention function is provided through the blue light prevention layer, so that the display panel has longer service life and better eye protection effect.
Drawings
FIG. 1 is a schematic diagram of an OLED display panel with a fluorescent emitter according to the present invention.
In the figure: 1-substrate mechanism, 11-substrate I, 12-buffer layer, 13-blue light prevention layer, 14-scratch prevention coating, 15-pressure sensitive adhesive layer, 16-substrate II, 2-light emitting device, 21-anode, 22-hole injection layer, 23-hole transmission layer, 24-light emitting layer, 25-fluorescence emission layer, 26-electron transmission layer, 27-electron injection layer and 28-cathode.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the present invention provides a technical solution: an OLED display panel with a fluorescent emitter and a method for manufacturing the same, the OLED display panel includes a substrate mechanism 1 and a light emitting device 2.
The substrate mechanism 1 comprises a first substrate 11, a buffer layer 12 and a blue light prevention layer 13; the first substrate 11 has a first surface and a second surface, and the blue light prevention layer 13 is formed on the first surface of the first substrate 11.
The light emitting device 2 includes an anode 21, a hole injection layer 22, a hole transport layer 23, a light emitting layer 24, a fluorescence emission layer 25, an electron transport layer 26, an electron injection layer 27, and a cathode 28; the anode 21 is formed on the second surface of the first substrate 11, the hole injection layer 22 is formed on the upper surface of the anode 21, the hole transport layer 23 is formed on the upper surface of the hole injection layer 22, the light emitting layer 24 is formed on the upper surface of the hole injection layer 22, the fluorescent emission layer 25 is formed on the upper surface of the light emitting layer 24, the electron transport layer 26 is formed on the upper surface of the fluorescent emission layer 25, the electron injection layer 27 is formed on the upper surface of the electron transport layer 26, the cathode 28 is formed on the upper surface of the electron injection layer 27, and the buffer layer 12 is formed on the upper surface of the cathode 28.
The upper surface of the cathode 28 is provided with a second substrate 16. The first substrate 11 and the second substrate 16 are both made of PE material and have a thickness of 25-40 μm. A pressure sensitive adhesive layer 15 is formed on a surface of the substrate 16 away from the cathode 28, and the pressure sensitive adhesive layer 15 is attached to the buffer layer 12. The pressure-sensitive adhesive layer 15 is prepared by melting and mixing natural rubber, tackifying resin, softening agent and ultraviolet absorbent, uniformly coating the mixture on the surface of the second substrate 16, drying the mixture at 50-70 ℃, and curing the dried mixture.
The material of the buffer layer 12 is one or more of silicon carbide and aluminum nitride. In the present embodiment, the buffer layer 12 is made of a silicon carbide material.
The blue light prevention layer 13 is obtained by melting and mixing tackifying resin, a softening agent, an anti-aging agent and a blue light absorbent, uniformly coating the mixture on the first surface of the first substrate 11, drying the mixture at 50-70 ℃, and curing the dried mixture.
The fluorescent emission layer 25 is composed of an Alq3 material doped with a fluorescent emitter.
The surface of the blue light prevention layer 13 on the side away from the substrate 11 is formed with a scratch-resistant coating 14.
The scratch-resistant coating 14 is obtained by adding a curing agent into silica gel, uniformly coating the silica gel on a polyester film, and drying and curing the polyester film at 50-70 ℃.
The invention discloses a preparation method of an OLED display panel with a fluorescent emitter, which is used for preparing the OLED display panel and comprises the following steps:
s1, providing a first substrate 11 having a first surface and a second surface.
S2, preparing the blue light prevention layer, uniformly coating the mixture on the first surface of the first substrate 11 after melting and mixing the tackifying resin, the softening agent, the anti-aging agent and the blue light absorbent, and drying and curing the mixture at the temperature of 50-70 ℃ to obtain the blue light prevention layer 13. A blue-light prevention layer 13 is attached on the first surface of the first substrate 11.
And S3, attaching the light-emitting device 2 on the second surface of the first substrate 11.
S4, preparing the pressure-sensitive adhesive layer 15, wherein the pressure-sensitive adhesive layer 15 is prepared by melting and mixing natural rubber, tackifying resin, softening agent and ultraviolet absorbent, uniformly coating the mixture on the surface of the second substrate 16, and keeping the temperature at 50-70 ℃. The second substrate 16 is attached to the cathode 28 in the light emitting device 2, and the buffer layer 12 is attached to the pressure sensitive adhesive layer 15.
S5, preparing the scratch-resistant coating 14, adding a curing agent into silica gel, uniformly coating the silica gel on a polyester film, and drying and curing the polyester film at the temperature of 50-70 ℃ to obtain the scratch-resistant coating 14. Finally, a scratch-resistant coating 14 is applied to the blue-resistant layer 13.
According to the OLED display panel with the fluorescent emitter and the preparation method thereof, the light-emitting device 2 with the fluorescent emitting layer 25 and the light-emitting layer 24 is arranged, so that when the light-emitting device 2 works, color display can be provided through the light-emitting layer 24, the display brightness is improved through the fluorescent emitting layer 25, and the display brightness of the display panel can be ensured in some strong light environments.
By arranging the substrate mechanism with the buffer layer 12 and the blue light prevention layer 13, effective buffer performance can be provided through the buffer layer 12, and the blue light prevention function is provided through the blue light prevention layer 13, so that the display panel has longer service life and better eye protection effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. An OLED display panel having a fluorescent emitter, characterized by: comprises a substrate mechanism (1) and a light-emitting device (2);
the substrate mechanism (1) comprises a first substrate (11), a buffer layer (12) and a blue light prevention layer (13); the first substrate (11) is provided with a first surface and a second surface, and the blue light prevention layer (13) is formed on the first surface of the first substrate (11);
the light-emitting device (2) comprises an anode (21), a hole injection layer (22), a hole transport layer (23), a light-emitting layer (24), a fluorescence emission layer (25), an electron transport layer (26), an electron injection layer (27) and a cathode (28); the anode (21) is formed on the second surface of the first substrate (11), the hole injection layer (22) is formed on the upper surface of the anode (21), the hole transport layer (23) is formed on the upper surface of the hole injection layer (22), the light emitting layer (24) is formed on the upper surface of the hole injection layer (22), the fluorescence emitting layer (25) is formed on the upper surface of the light emitting layer (24), the electron transport layer (26) is formed on the upper surface of the fluorescence emitting layer (25), the electron injection layer (27) is formed on the upper surface of the electron transport layer (26), the cathode (28) is formed on the upper surface of the electron injection layer (27), and the buffer layer (12) is formed on the upper surface of the cathode (28).
2. The OLED display panel having a fluorescent emitter of claim 1, wherein: the fluorescence emission layer (25) is made of Alq3 material doped with fluorescence emitter.
3. The OLED display panel having a fluorescent emitter of claim 1, wherein: the surface of one side of the blue light prevention layer (13) far away from the substrate (11) is provided with a scratch-resistant coating (14).
4. The OLED display panel having a fluorescent emitter of claim 1, wherein: a second substrate (16) is arranged on the upper surface of the cathode (28);
a pressure sensitive adhesive layer (15) is formed on one side surface of the substrate (16) far away from the cathode (28), and the pressure sensitive adhesive layer (15) is attached to the buffer layer (12).
5. The OLED display panel having a fluorescent emitter of claim 1, wherein: the blue light prevention layer (13) is obtained by melting and mixing tackifying resin, a softening agent, an anti-aging agent and a blue light absorbent, uniformly coating the mixture on the first surface of the first substrate (11), drying the mixture at 50-70 ℃ and then curing the dried mixture.
6. The OLED display panel having a fluorescent emitter as claimed in claim 4, wherein: and the pressure-sensitive adhesive layer (15) is prepared by melting and mixing natural rubber, tackifying resin, a softening agent and an ultraviolet absorbent, uniformly coating the mixture on the surface of the second substrate (16), and drying and curing the mixture at 50-70 ℃ to obtain the pressure-sensitive adhesive layer (15).
7. The OLED display panel having a fluorescent emitter as claimed in claim 4, wherein: the first substrate (11) and the second substrate (16) are both made of PE materials and have the thickness of 25-40 mu m.
8. The OLED display panel having a fluorescent emitter of claim 3, wherein: the scratch-resistant coating (14) is prepared by adding a curing agent into silica gel, uniformly coating the silica gel on a polyester film, and drying and curing the silica gel at 50-70 ℃.
9. A method of manufacturing an OLED display panel with a fluorescent emitter as claimed in any one of claims 1 to 8, wherein: the method comprises the following steps:
s1, providing a first substrate (11) which is provided with a first surface and a second surface;
s2, attaching a blue light prevention layer (13) on the first surface of the first substrate (11);
s3, attaching a light-emitting device (2) on the second surface of the first substrate (11);
and S4, attaching a buffer layer (12) on one side of the light-emitting device (2) far away from the first substrate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010929249.6A CN112018256A (en) | 2020-09-07 | 2020-09-07 | OLED display panel with fluorescent emitter and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010929249.6A CN112018256A (en) | 2020-09-07 | 2020-09-07 | OLED display panel with fluorescent emitter and preparation method thereof |
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| CN112018256A true CN112018256A (en) | 2020-12-01 |
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| CN202010929249.6A Pending CN112018256A (en) | 2020-09-07 | 2020-09-07 | OLED display panel with fluorescent emitter and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885880A (en) * | 2021-01-21 | 2021-06-01 | 合肥维信诺科技有限公司 | Display device and manufacturing method thereof |
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| CN1921171A (en) * | 2006-09-14 | 2007-02-28 | 电子科技大学 | White light organic electroluminescent device |
| CN104241540A (en) * | 2014-09-04 | 2014-12-24 | 京东方科技集团股份有限公司 | Organic electroluminescent display device, manufacturing method thereof and display unit |
| CN105093377A (en) * | 2015-09-17 | 2015-11-25 | 京东方科技集团股份有限公司 | Blue ray attenuation device and preparation method, base plate, displayer and intelligent wearable product |
| CN105845843A (en) * | 2016-02-23 | 2016-08-10 | 友达光电股份有限公司 | Organic light emitting display panel and detection and compensation method thereof |
| CN110931648A (en) * | 2019-11-11 | 2020-03-27 | 东莞市仲磊光电材料有限公司 | OLED light source and preparation method thereof |
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2020
- 2020-09-07 CN CN202010929249.6A patent/CN112018256A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1921171A (en) * | 2006-09-14 | 2007-02-28 | 电子科技大学 | White light organic electroluminescent device |
| CN104241540A (en) * | 2014-09-04 | 2014-12-24 | 京东方科技集团股份有限公司 | Organic electroluminescent display device, manufacturing method thereof and display unit |
| CN105093377A (en) * | 2015-09-17 | 2015-11-25 | 京东方科技集团股份有限公司 | Blue ray attenuation device and preparation method, base plate, displayer and intelligent wearable product |
| CN105845843A (en) * | 2016-02-23 | 2016-08-10 | 友达光电股份有限公司 | Organic light emitting display panel and detection and compensation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885880A (en) * | 2021-01-21 | 2021-06-01 | 合肥维信诺科技有限公司 | Display device and manufacturing method thereof |
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