CN111106240A - Ink jet printing cartridge and method of manufacturing organic light emitting diode display device - Google Patents
Ink jet printing cartridge and method of manufacturing organic light emitting diode display device Download PDFInfo
- Publication number
- CN111106240A CN111106240A CN201911349699.1A CN201911349699A CN111106240A CN 111106240 A CN111106240 A CN 111106240A CN 201911349699 A CN201911349699 A CN 201911349699A CN 111106240 A CN111106240 A CN 111106240A
- Authority
- CN
- China
- Prior art keywords
- layer
- print cartridge
- organic light
- light emitting
- control switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007641 inkjet printing Methods 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000007639 printing Methods 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims description 38
- 239000007924 injection Substances 0.000 claims description 38
- 230000005525 hole transport Effects 0.000 claims description 19
- 239000000243 solution Substances 0.000 claims description 16
- 238000004528 spin coating Methods 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 10
- 239000010409 thin film Substances 0.000 description 7
- 239000010408 film Substances 0.000 description 6
- 239000011521 glass Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- H10K71/13—Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing
- H10K71/135—Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing using ink-jet printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/21—Ink jet for multi-colour printing
- B41J2/2107—Ink jet for multi-colour printing characterised by the ink properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/21—Ink jet for multi-colour printing
- B41J2/2121—Ink jet for multi-colour printing characterised by dot size, e.g. combinations of printed dots of different diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/413—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material for metal
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
An inkjet print cartridge is used to manufacture an organic light emitting display device. The ink jet print cartridge includes a first print cartridge, a second print cartridge, a first control switch, and a second control switch. The first cartridge carries a soluble organic molecule solution and the second cartridge carries a blank solvent. The first control switch controls the first printing box, and when the amount of the soluble organic molecular solution reaches a first preset value, the first control switch closes the first printing box. The second control switch controls the second print cartridge and closes the second print cartridge when the blank solvent reaches a second preset value. The invention prepares the organic light-emitting diode display device by the ink-jet printing technology of mixing the soluble organic molecules and the blank solvent, reduces the using amount of the ink box, can also effectively control the process of drying and film forming, and achieves that each layer in the organic light-emitting diode display device has wider range of thickness.
Description
Technical Field
The invention relates to the technical field of preparation of display equipment by ink-jet printing, in particular to an ink-jet printing box and a method for preparing organic light-emitting diode display equipment.
Background
Since the polymer has a large molecular weight, spin coating or printing is mainly used, and inkjet printing is the best method for manufacturing an organic light emitting diode display device at present.
Currently, in the process of manufacturing an organic light emitting diode display device by ink jet printing, each ink box can only be loaded with one concentration of ink, because each pixel has a limited volume and the ink must be spread over the pixels. Thus, there are lower and upper limits on the volume of ink that can be loaded per pixel, resulting in a very limited range of thicknesses that can be printed with each concentration of ink. In addition, the ink jet printing technology has a very high requirement on the degree of drying, and in the process of manufacturing an organic light emitting diode display device, surface irregularities of a pixel layer are often caused in the drying process. Therefore, there is a need to provide an inkjet print cartridge for manufacturing an organic light emitting display device to solve the problems of the prior art.
Disclosure of Invention
The invention provides an ink-jet printing box which is used for preparing organic light-emitting display equipment and comprises a first printing box, a second printing box, a first control switch and a second control switch. The first cartridge carries a soluble organic molecule solution and the second cartridge carries a blank solvent. The first control switch controls the first printing box, and when the amount of the soluble organic molecular solution reaches a first preset value, the first control switch closes the first printing box. The second control switch controls the second print cartridge and closes the second print cartridge when the blank solvent reaches a second preset value.
In one embodiment of the present invention, the first print cartridge includes a first sub-print cartridge, a second sub-print cartridge, and a third sub-print cartridge, the first sub-print cartridge carries the red light-emitting organic molecular solution, the second sub-print cartridge carries the green organic molecular solution, and the third sub-print cartridge carries the blue organic molecular solution.
In one embodiment of the present invention, the hole injection layer, the hole transport layer, the organic light emitting layer, the electron transport layer, and the electron injection layer are formed to a thickness in a range of 0.1 nm to 175 nm by an inkjet print cartridge.
In an embodiment of the present invention, the first predetermined value is between 0.1 and 45 picoliters.
In an embodiment of the present invention, the second predetermined value is between 0.1 and 45 picoliters.
The invention provides a method for preparing an organic light-emitting diode display device by using the ink-jet printing box for printing, which comprises the steps of providing a substrate, forming an anode layer, spin-coating a hole injection layer, spin-coating a hole transport layer, forming an organic light-emitting layer by ink-jet printing, spin-coating an electron transport layer, spin-coating an electron injection layer and forming a cathode layer.
In an embodiment of the present invention, the thicknesses of the hole injection layer, the hole transport layer, the organic light emitting layer, the electron transport layer and the electron injection layer are in a range from 0.1 nm to 175 nm.
In an embodiment of the present invention, the thicknesses of the hole injection layer, the hole transport layer, the organic light emitting layer, the electron transport layer and the electron injection layer are in a range from 60 nm to 175 nm.
In an embodiment of the present invention, the thicknesses of the hole injection layer, the hole transport layer, the organic light emitting layer, the electron transport layer and the electron injection layer are in a range from 20 nm to 40 nm.
In an embodiment of the present invention, the thicknesses of the hole injection layer, the hole transport layer, the organic light emitting layer, the electron transport layer and the electron injection layer are in a range from 40 nm to 80 nm.
The embodiment of the invention prepares the organic light emitting diode display device by an inkjet printing technology of mixing soluble organic molecules and a blank solvent, simultaneously reduces the number of used ink boxes, can also effectively control the process of drying and film forming, and achieves that each layer in the organic light emitting diode display device has a wider range of thickness.
Drawings
FIG. 1 is a schematic view of an embodiment of the present invention as implemented by an ink jet print cartridge.
FIG. 2 is a graph showing the relationship between the film thickness and the volume of an organic light-emitting layer formed by ink-jet printing according to an embodiment of the present invention.
Detailed Description
According to fig. 1, the present invention provides an inkjet print cartridge 10 for use in preparing an organic light emitting display device. Inkjet print cartridge 10 includes a first print cartridge 11, a second print cartridge 12, a first control switch 110, and a second control switch 120. The first print cartridge 11 carries a soluble organic molecule solution and the second print cartridge 12 carries a blank solvent. The first control switch 110 controls the first print cartridge 11, and when the amount of the soluble organic molecular solution reaches a first preset value, wherein the first preset value is between 0.1 and 45 picoliters, the first control switch 110 closes the first print cartridge 11. Second control switch 120 controls second print cartridge 12 and second control switch 120 closes second print cartridge 12 when the blank solvent reaches a second preset value, wherein the second preset value is between 0.1 and 45 picoliters.
Specifically, the first print cartridge includes a first sub-print cartridge, a second sub-print cartridge, and a third sub-print cartridge, the first sub-print cartridge carrying a red light emitting organic molecular solution, the second sub-print cartridge carrying a green organic molecular solution, and the third sub-print cartridge carrying a blue organic molecular solution. In addition, a hole injection layer, a hole transport layer, an organic light emitting layer, an electron transport layer, and an electron injection layer are formed to a thickness ranging from 0.1 nm to 175 nm by the inkjet print cartridge.
In addition, the invention also provides a method for preparing the organic light-emitting diode display device by using the ink-jet printing box printing, which comprises the steps of providing a substrate, forming an anode layer, spin-coating a hole injection layer, spin-coating a hole transport layer, forming an organic light-emitting layer by ink-jet printing, spin-coating an electron transport layer, spin-coating an electron injection layer and forming a cathode layer.
Specifically, a substrate is first provided, which is glass or a flexible material, and a patterned anode layer is formed on the substrate, where the anode layer includes a metal layer or a metal oxide layer, and preferably, the metal oxide layer includes indium tin oxide or tin oxide. And sequentially spin-coating a hole injection layer and a hole transport layer on the patterned anode layer and forming an organic light-emitting layer by ink-jet printing. In the process of forming the organic light emitting layer by inkjet printing, the organic light emitting layer is formed by spraying an organic mixture, specifically, the organic mixture includes soluble organic molecules and a blank solvent, and the soluble organic molecules further include red soluble organic molecules, green soluble organic molecules, and blue soluble organic molecules. In the inkjet printing process, an organic mixture of red soluble organic molecules and a blank solvent is inkjet printed to form a red light emitting layer thin film, and the remaining organic mixture is removed. And then ink-jet printing an organic mixture of green soluble organic molecules and a blank solvent to form a green light-emitting layer film, and removing the residual organic mixture. And finally, ink-jet printing the organic mixture of the blue soluble organic molecules and the blank solvent to form a blue light-emitting layer film, and removing the residual organic mixture. The processes of forming the red light emitting layer thin film, the green light emitting layer thin film and the blue light emitting layer thin film do not need to be in order, and the red light emitting layer thin film, the green light emitting layer thin film and the blue light emitting layer thin film can be simultaneously formed by appropriate adjustment, so that the present invention is not limited to this embodiment.
Further, the thicknesses of the hole injection layer, the hole transport layer and the organic light emitting layer are in the range of 0.1 nm to 175 nm. Preferably, the thicknesses of the hole injection layer, the hole transport layer and the organic light emitting layer are in the range of 60 nm to 175 nm. More preferably, the thicknesses of the hole injection layer, the hole transport layer and the organic light emitting layer are in the range of 40 nm to 80 nm. Still more preferably, the thickness of the hole injection layer, the hole transport layer, the organic light emitting layer is in the range of 20 nm to 40 nm.
When the organic light emitting layer is formed by ink jet printing, an electron transport layer and an electron injection layer are spin-coated, and preferably, the thickness of the electron transport layer and the electron injection layer is in the range of 60 nm to 175 nm. More preferably, the electron transport layer and the electron injection layer have a thickness in the range of 40 nm to 80 nm. Still more preferably, the electron transport layer and the electron injection layer have a thickness in the range of 20 nm to 40 nm. And after the electron transmission layer and the electron injection layer are formed, evaporating a metal cathode layer, adhering a glass packaging sheet with epoxy resin, and curing to obtain the organic light-emitting diode display device.
Referring to fig. 2, fig. 2 is a graph showing the relationship between the film thickness and the volume of the organic light-emitting layer formed by inkjet printing according to the embodiment of the present invention. Ink jet printing of an organic mixture of soluble organic molecules and a blank solvent can form an organic light-emitting layer having a thickness in the range of 0.1 nm to 175 nm. Ink-jet printing of solutions containing only soluble organic molecules can only form organic light-emitting layers with thicknesses in the range of 60 nm to 175 nm. Obviously, an ink containing a mixture of soluble organic molecules and a solvent blank can produce an organic light-emitting layer having a wider thickness range, compared to an ink containing only soluble organic molecules which can produce an organic light-emitting layer having a narrower thickness range.
The embodiment of the invention prepares the organic light emitting diode display device by an inkjet printing technology of mixing soluble organic molecules and a blank solvent, simultaneously reduces the number of used ink boxes, can also effectively control the process of drying and film forming, and achieves that each layer in the organic light emitting diode display device has a wider range of thickness.
While the invention has been described in conjunction with specific embodiments thereof, it is to be understood that many alternatives, modifications, and variations will be apparent to those skilled in the art. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the scope of the included claims.
Claims (10)
1. An ink jet print cartridge for use in making an organic light emitting display device, comprising:
a first print cartridge;
a second print cartridge;
a first control switch; and
a second control switch;
wherein the first print cartridge carries a soluble organic molecule solution and the second print cartridge carries a blank solvent; the first control switch controls the first printing box, and when the amount of the soluble organic molecular solution reaches a first preset value, the first control switch closes the first printing box; and the second control switch controls the second printing box, and when the blank solvent reaches a second preset value, the second control switch closes the second printing box.
2. The inkjet print cartridge of claim 1, wherein the first print cartridge includes a first sub-cartridge, a second sub-cartridge, and a third sub-cartridge, the first sub-cartridge carrying a red light emitting organic molecular solution, the second sub-cartridge carrying a green organic molecular solution, and the third sub-cartridge carrying a blue organic molecular solution.
3. The inkjet print cartridge of claim 1, wherein the hole injection layer, the hole transport layer, the organic light emitting layer, the electron transport layer, and the electron injection layer are formed by the inkjet print cartridge to a thickness in a range from 0.1 nanometers to 175 nanometers.
4. The inkjet print cartridge of claim 1, wherein the first preset value is between 0.1 and 45 picoliters.
5. The inkjet print cartridge of claim 1, wherein the second preset value is between 0.1 and 45 picoliters.
6. A method of making an organic light emitting diode display device using the inkjet print cartridge of claim 1, comprising:
providing a substrate;
forming an anode layer;
spin coating a hole injection layer;
spin coating a hole transport layer;
forming an organic light-emitting layer by ink-jet printing;
spin coating an electron transport layer;
spin coating an electron injection layer; and
forming a cathode layer.
7. The method of claim 6, wherein the hole injection layer, the hole transport layer, the organic light emitting layer, the electron transport layer, and the electron injection layer have a thickness in a range from 0.1 nm to 175 nm.
8. The method according to claim 6, wherein the hole injection layer, the hole transport layer, the organic light emitting layer, the electron transport layer, and the electron injection layer have a thickness in a range of 60 nm to 175 nm.
9. The method of claim 6, wherein the hole injection layer, the hole transport layer, the organic light emitting layer, the electron transport layer, and the electron injection layer have a thickness in a range from 20 nm to 40 nm.
10. The method of claim 6, wherein the hole injection layer, the hole transport layer, the organic light emitting layer, the electron transport layer, and the electron injection layer have a thickness in a range from 40 nm to 80 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911349699.1A CN111106240B (en) | 2019-12-24 | 2019-12-24 | Ink jet print cartridge and method for preparing organic light emitting diode display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911349699.1A CN111106240B (en) | 2019-12-24 | 2019-12-24 | Ink jet print cartridge and method for preparing organic light emitting diode display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111106240A true CN111106240A (en) | 2020-05-05 |
| CN111106240B CN111106240B (en) | 2023-11-28 |
Family
ID=70423971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911349699.1A Active CN111106240B (en) | 2019-12-24 | 2019-12-24 | Ink jet print cartridge and method for preparing organic light emitting diode display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111106240B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112428700A (en) * | 2020-11-11 | 2021-03-02 | 大连理工大学 | Integrated ink-jet printing manufacturing device and method for flexible bendable OLED screen |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003142261A (en) * | 2001-11-02 | 2003-05-16 | Tdk Corp | Manufacturing method of organic el display element, and organic el display element |
| JP2009064642A (en) * | 2007-09-05 | 2009-03-26 | Sharp Corp | Manufacturing method of organic electroluminescent display device, and manufacturing apparatus |
| CN107623076A (en) * | 2017-09-29 | 2018-01-23 | 深圳市华星光电半导体显示技术有限公司 | Whole soln OLED and preparation method thereof |
| CN108447998A (en) * | 2018-03-19 | 2018-08-24 | 京东方科技集团股份有限公司 | Quantum dot light emitting device and preparation method, quantum dot light emitting display device |
| CN110112327A (en) * | 2019-04-08 | 2019-08-09 | 深圳市华星光电半导体显示技术有限公司 | Organic light emitting diode display and its manufacturing method |
| CN110311050A (en) * | 2019-07-22 | 2019-10-08 | 深圳市华星光电半导体显示技术有限公司 | A kind of organic LED display device and preparation method thereof |
-
2019
- 2019-12-24 CN CN201911349699.1A patent/CN111106240B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003142261A (en) * | 2001-11-02 | 2003-05-16 | Tdk Corp | Manufacturing method of organic el display element, and organic el display element |
| JP2009064642A (en) * | 2007-09-05 | 2009-03-26 | Sharp Corp | Manufacturing method of organic electroluminescent display device, and manufacturing apparatus |
| CN107623076A (en) * | 2017-09-29 | 2018-01-23 | 深圳市华星光电半导体显示技术有限公司 | Whole soln OLED and preparation method thereof |
| CN108447998A (en) * | 2018-03-19 | 2018-08-24 | 京东方科技集团股份有限公司 | Quantum dot light emitting device and preparation method, quantum dot light emitting display device |
| CN110112327A (en) * | 2019-04-08 | 2019-08-09 | 深圳市华星光电半导体显示技术有限公司 | Organic light emitting diode display and its manufacturing method |
| CN110311050A (en) * | 2019-07-22 | 2019-10-08 | 深圳市华星光电半导体显示技术有限公司 | A kind of organic LED display device and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112428700A (en) * | 2020-11-11 | 2021-03-02 | 大连理工大学 | Integrated ink-jet printing manufacturing device and method for flexible bendable OLED screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111106240B (en) | 2023-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9466650B2 (en) | Display panel with pixel defining layer and manufacturing method of pixel defining layer | |
| US9412969B2 (en) | Organic electro-luminescent display and method of fabricating the same | |
| US10204968B2 (en) | Organic light-emitting display substrate, method of fabricating the same, display panel, and display device | |
| CN105932037B (en) | A kind of organic electroluminescent display substrate and preparation method thereof, display device | |
| TW512646B (en) | Organic EL device and production method thereof | |
| JP4885906B2 (en) | Method for manufacturing light emitting device | |
| CN101908599B (en) | Method for fabricating functional film | |
| US20230337472A1 (en) | Pixel defining structure and manufacturing method thereof, display panel and display device | |
| US20060046062A1 (en) | Method of producing a functional film, a coating liquid for forming a functional film and a functional device | |
| CN107968108B (en) | Pixel defining layer and preparation method and application thereof | |
| CN104465671A (en) | Display substrate, manufacturing method of display substrate and display device | |
| JP2004127897A (en) | Composition, organic conductive film using the same, its manufacturing method, and organic el element having the organic conductive film, its manufacturing method, and semiconductor element having the organic conductive film, its manufacturing method, and electronic apparatus and electronic device | |
| CN108428720B (en) | Substrate, manufacturing method thereof and electronic panel | |
| CN104260554A (en) | Ink-jet printing method and device and manufacturing method of display substrate | |
| CN102960068A (en) | Organic el display panel and method for manufacturing same | |
| CN106935735A (en) | The preparation method of display base plate, display base plate and display device | |
| CN111106240B (en) | Ink jet print cartridge and method for preparing organic light emitting diode display device | |
| US10957879B2 (en) | OLED substrate, manufacturing method thereof, display device | |
| JP2005270725A (en) | Pattern substrate, manufacturing method for pattern substrate and manufacturing apparatus for pattern substrate | |
| US20070063640A1 (en) | Electroluminescent display panel | |
| CN104716162B (en) | A kind of organic LED display panel and preparation method thereof, display device | |
| CN110164931B (en) | Organic electroluminescent device, method of manufacturing the same, and display apparatus | |
| US20210359044A1 (en) | Organic light emitting diode back plate and method of manufacturing same | |
| KR101391807B1 (en) | Method of forming pattern by using inkjet printing and nano imprinting | |
| CN112599711B (en) | Preparation method of OLED device and OLED device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |