CN114196260A - Printing ink and display device - Google Patents
Printing ink and display device Download PDFInfo
- Publication number
- CN114196260A CN114196260A CN202111625268.0A CN202111625268A CN114196260A CN 114196260 A CN114196260 A CN 114196260A CN 202111625268 A CN202111625268 A CN 202111625268A CN 114196260 A CN114196260 A CN 114196260A
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- printing ink
- selenium
- optical film
- film layer
- printing
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/36—Inkjet printing inks based on non-aqueous solvents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
Abstract
The invention provides printing ink and a display device, wherein the printing ink comprises diisocyanate, dipropynyl alcohol, organic base, solvent, functional auxiliary agent and selenium, wherein the weight percentage of the selenium is 5-20%. According to the invention, selenium is added into the printing ink, the weight percentage of the selenium is controlled within the range of 5-20%, the properties of high refractive index and high visible light transparency of the selenium are utilized, so that the refractive index of an optical film layer prepared by printing the printing ink is between 1.6 and 1.8, and the light transmittance of the optical film layer in a visible light region is greater than 90%, thus the dual requirements of a display device on the high refractive index and the high transmittance of the optical film layer are realized.
Description
Technical Field
The present application relates to the field of display, and in particular, to a printing ink and a display device.
Background
The organic thin film with high refractive index and high transparency plays a key role in changing light type, diverging/collecting light path, light valve and the like, so the organic thin film has wide and important application value and commercial value in the fields of photoelectronic devices, medical instruments, communication and the like.
The Ink Jet Printing (IJP) technology is widely used in the display industry, for example, a high refractive index optical film layer can be integrated in a display device through the IJP process, so that the light extraction efficiency of the device is remarkably improved. As a key material of the IJP technology, the ink has a significant influence on the IJP process. Most of the inks for preparing the high-refractive-index optical film at present are mixed systems consisting of acrylate or epoxy resin matrixes and inorganic nanoparticles.
Among them, the acrylate or epoxy resin as the matrix has good visible light transparency but has a low refractive index (< 1.5), so that it is necessary to mix inorganic nanoparticles to increase the refractive index (> 1.6) of the optical film. The introduction of inorganic nanoparticles can improve the refractive index of the film, but the disadvantages are also obvious. On one hand, the nanoparticles need to be subjected to complicated chemical modification, otherwise sedimentation occurs, and the IJP process and the optical effect of the final film layer are seriously affected; on the other hand, in order to improve the refractive index of the ink, the addition amount of the nanoparticles needs to be increased, which further increases the difficulty of chemical modification and simultaneously reduces the original high transparency of the acrylate or epoxy resin matrix.
Disclosure of Invention
The invention provides printing ink which can be used for printing and preparing an optical film layer with high transmittance and high refractive index, and solves the problem that the high refractive index and the high transmittance of the conventional optical film layer cannot be considered at the same time.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
the invention provides printing ink which comprises diisocyanate, dipropynyl alcohol, organic base, solvent, functional auxiliary agent and selenium, wherein the weight percentage of the selenium is 5-20%.
Optionally, in some embodiments of the present invention, the weight percentage of the diisocyanate is 20% to 40%, the weight percentage of the dipropynyl alcohol is 20% to 40%, the weight percentage of the organic base is 1% to 3%, the weight percentage of the solvent is 5% to 15%, and the weight percentage of the functional additive is 0.1% to 5%.
Optionally, in some embodiments of the invention, the diisocyanate has the formula
Any one or more of them.
Optionally, in some embodiments of the invention, the dipropynyl alcohol has the formula
Optionally, in some embodiments of the invention, the organic base is triphenylamine or 1, 8-diazacyclo [5,4,0] undecene-7.
Optionally, in some embodiments of the invention, the solvent is a polar aprotic solvent comprising N, N-dimethylformamide, N-methylpyrrolidone.
Optionally, in some embodiments of the present invention, the optical film layer prepared by printing the printing ink has a refractive index of 1.6 to 1.8 and a light transmittance in a visible light region of greater than 90%.
The present invention also provides a display device including:
a display panel;
the optical film layer is prepared by printing the printing ink, and is arranged on the light emergent side of the display panel.
Optionally, in some embodiments of the present invention, the printing atmosphere of the printing ink is an inert gas atmosphere.
Optionally, in some embodiments of the present invention, the printing ink is cured by heating at 40-80 ℃ for 5-30 minutes.
The invention provides printing ink and a display device, wherein the printing ink comprises diisocyanate, dipropynyl alcohol, an organic base, a solvent, a functional auxiliary agent and selenium, wherein the weight percentage of the selenium is 5-20%. According to the invention, selenium is added into the printing ink, the weight percentage of the selenium is controlled within the range of 5-20%, the properties of high refractive index and high visible light transparency of the selenium are utilized, so that the refractive index of an optical film layer prepared by printing the printing ink is between 1.6 and 1.8, and the light transmittance of the optical film layer in a visible light region is greater than 90%, thus the dual requirements of a display device on the high refractive index and the high transmittance of the optical film layer are realized.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
While the embodiments and/or examples of the present invention will be described in detail and fully with reference to the specific embodiments thereof, it should be understood that the embodiments and/or examples described below are only a part of the embodiments and/or examples of the present invention and are not intended to limit the scope of the invention. All other embodiments and/or examples, which can be obtained by a person skilled in the art without making any inventive step, based on the embodiments and/or examples of the present invention, belong to the scope of protection of the present invention.
Directional terms used in the present invention, such as [ upper ], [ lower ], [ left ], [ right ], [ front ], [ rear ], [ inner ], [ outer ], [ side ], are only referring to the directions of the attached drawings. Accordingly, the directional terminology is used for the purpose of describing and understanding the invention and is in no way limiting. The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
Aiming at the problem that the high refractive index and the high transmittance of the conventional optical film layer cannot be considered at the same time, the invention provides printing ink which can be used for printing and preparing the optical film layer with high transmittance and high refractive index.
In one embodiment, the printing ink provided by the invention comprises 20-40 wt% of diisocyanate, 20-40 wt% of dipropynyl alcohol, 1-3 wt% of organic base, 5-15 wt% of solvent, 0.1-5 wt% of functional assistant and 5-20 wt% of selenium.
In one embodiment, the diisocyanate has the formula
In one embodiment, the dipropynyl alcohol has the formula
Any one or more of them.
In one embodiment, the organic base is a triphenylamine or 1, 8-diazacyclo [5,4,0] undecene-7, or the like, that catalyzes the printing ink.
In one embodiment, the solvent is a polar aprotic solvent including N, N-dimethylformamide, N-methylpyrrolidone, and the like.
In one embodiment, the functional assistant includes any one of a surface tension adjusting agent and a leveling agent. In some embodiments, the functional assistant may further include any one or a combination of two or more of a tonicity adjusting agent, a dispersing agent, a wetting agent, and a leveling agent, which is not limited herein.
The printing ink is obtained by mixing the diisocyanate, the dipropynyl alcohol, the organic base, the solvent, the functional assistant and the selenium according to a predetermined weight percentage, the specific weight of each component of the printing ink is set according to actual needs, the mixing mode of each component can be designed according to actual preparation conditions, for example, the components of the printing ink can be uniformly dispersed and mixed by adopting the modes of electromagnetic stirring, oscillation dispersion, ultrasonic dispersion and the like, and the mixed mixture can be subjected to defoaming treatment by adopting the vacuum defoaming treatment mode.
Sulfur-containing polymers generally have high refractive indices (> 1.58), and as the elemental sulfur content increases, the refractive index of the polymer film can reach 1.8 or more. Selenium (Se) is in the same main group as sulfur and has the same external electronic structure, and thus has similar high refractive index properties. By adding selenium element into printing ink and controlling the weight percentage of selenium within the range of 5% -20%, the refractive index of an optical film layer prepared by printing the printing ink can be between 1.6 and 1.8, and the requirement of high refractive index of the optical film layer is met. And the specific content of the selenium element can be adjusted and controlled within the range of 5% -20%, so that the refractive index of the optical film layer can be adjusted within the range of 1.6-1.8, and the optical film layer can meet the actual application requirements.
The sulfur-containing polymer has certain absorption in visible light, particularly a red light region due to the large conjugation effect of a thiophene ring and the strong hydrogen bonding effect of a sulfur element, so that the transparency is reduced, the atomic number of the selenium element and the outer electronic shell layer are increased compared with the sulfur element, and the conjugation property and the hydrogen bonding effect of the selenophene ring in the selenium-containing polymer are obviously weakened compared with the sulfur element, so that the selenium-containing polymer has better visible light transparency, the light transmittance of an optical film layer prepared by printing of the printing ink in the visible light region is larger than 90%, and the requirement of high transmittance of the optical film layer is met. In addition, the selenium-containing polymer does not have volatile peculiar smell which is often possessed by sulfur-containing polymers, and the optical film layer can be well applied to consumer-grade industrial products such as display devices and the like.
According to the embodiment of the invention, selenium is added into the printing ink, the weight percentage of the selenium is controlled within the range of 5-20%, the properties of high refractive index and high visible light transparency of the selenium are utilized, so that the refractive index of an optical film layer prepared by printing the printing ink is between 1.6 and 1.8, and the light transmittance of the optical film layer in a visible light region is greater than 90%, so that the dual requirements of a display device on the high refractive index and the high transmittance of the optical film layer are realized.
The printing ink with high refractive index and high transmittance provided by the embodiment of the invention can be used in a display device and used as a raw material for preparing a specific optical film layer in the display device.
Therefore, an embodiment of the present invention further provides a display device adaptively, referring to fig. 1, where the display device includes:
a display panel 10, which may be any one of an OLED (Organic Light-Emitting semiconductor) display panel, an lcd (liquid Crystal display) display panel, an LED (Light-Emitting Diode) display panel, a Mini-LED display panel, a Micro display panel, and the like, but is not limited thereto;
the optical film layer 20 is arranged on the light emitting side of the display panel, and is prepared by printing ink, wherein the printing ink comprises diisocyanate, dipropynyl alcohol, organic base, solvent, functional auxiliary agent and selenium, and the weight percentage of the selenium is 5-20%.
According to the embodiment of the invention, the optical film layer prepared by printing the printing ink is arranged on the light emergent side of the display panel in the display device, the optical film layer is prepared by printing the printing ink added with selenium element, the weight percentage of the selenium element is controlled within the range of 5-20%, the refractive index of the optical film layer is enabled to be between 1.6 and 1.8 by utilizing the properties of high refractive index and high visible light transparency of the selenium element, the light transmittance of the optical film layer in a visible light area is larger than 90%, and the optical film layer with high refractive index and high transmittance is arranged on the light emergent side of the display panel and is used as a light emergent enhancement structure of the display device, so that the light emergent rate of the display device is improved.
In one embodiment, the diisocyanate has the formula
In one embodiment, the dipropynyl alcohol has the formula
20 to 40% by weight of the dipropynyl alcohol.
In one embodiment, the organic base is used for catalysis in the printing ink, the organic base is triphenylamine or 1, 8-diazacyclo [5,4,0] undecene-7 and the like, and the weight percentage of the organic base is 1% -3%.
In one embodiment, the solvent is a polar aprotic solvent including N, N-dimethylformamide, N-methylpyrrolidone, etc., in a weight percentage of 5% to 15%.
In one embodiment, the functional assistant includes any one of a surface tension adjusting agent and a leveling agent. In some embodiments, the functional assistant may further include any one or a combination of two or more of a tonicity adjusting agent, a dispersing agent, a wetting agent, and a leveling agent, which is not limited herein. The weight percentage of the functional auxiliary agent is 0.1-5%.
The printing ink is obtained by mixing the diisocyanate, the dipropynyl alcohol, the organic base, the solvent, the functional assistant and the selenium according to a predetermined weight percentage, the specific weight of each component of the printing ink is set according to actual needs, the mixing mode of each component can be designed according to actual preparation conditions, for example, the components of the printing ink can be uniformly dispersed and mixed by adopting the modes of electromagnetic stirring, oscillation dispersion, ultrasonic dispersion and the like, and the mixed mixture can be subjected to defoaming treatment by adopting the vacuum defoaming treatment mode.
In one embodiment, the optical film layer is prepared from the printing ink by means of inkjet printing, and the printing atmosphere of inkjet printing is an inert gas atmosphere.
In one embodiment, the printing ink after ink-jet printing is cured by heating at 40-80 deg.C for 5-30 min.
In summary, the embodiments of the present invention provide a printing ink and a display device, the printing ink includes a diisocyanate, a dipropynyl alcohol, an organic base, a solvent, a functional assistant, and selenium, wherein the selenium is 5% to 20% by weight. By adding selenium element into printing ink and controlling the weight percentage of the selenium element within the range of 5% -20%, the refractive index of an optical film layer printed and prepared by the printing ink is enabled to be between 1.6 and 1.8 by utilizing the properties of high refractive index and high visible light transparency of the selenium element, and the light transmittance of the optical film layer in a visible light region is greater than 90%, so that the dual requirements of a display device on the high refractive index and the high transmittance of the optical film layer are met.
The printing ink and the display device provided by the embodiment of the invention are described in detail, and the principle and the embodiment of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The printing ink is characterized by comprising diisocyanate, dipropynyl alcohol, an organic base, a solvent, a functional assistant and selenium, wherein the weight percentage of the selenium is 5-20%.
2. The printing ink of claim 1 wherein the diisocyanate is 20 to 40 wt%, the dipropynyl alcohol is 20 to 40 wt%, the organic base is 1 to 3 wt%, the solvent is 5 to 15 wt%, and the functional assistant is 0.1 to 5 wt%.
3. The printing ink of claim 2 wherein the diisocyanate has the formula
Any one or more of them.
4. The printing ink of claim 2 wherein the dipropynyl alcohol has the formula
Any one or more of them.
5. The printing ink of claim 2 wherein the organic base is triphenylamine or 1, 8-diazacyclo [5,4,0] undecene-7.
6. The printing ink of claim 2 wherein the solvent is a polar aprotic solvent comprising N, N-dimethylformamide, N-methylpyrrolidone.
7. The printing ink of claim 1, wherein the optical film layer produced by printing the printing ink has a refractive index of 1.6 to 1.8 and a light transmittance in the visible light range of greater than 90%.
8. A display device, comprising:
a display panel;
an optical film layer prepared by printing with the printing ink of any one of claims 1 to 7, wherein the optical film layer is arranged on the light emitting side of the display panel.
9. The display device according to claim 8, wherein a printing atmosphere of the printing ink is an inert gas atmosphere.
10. The display device according to claim 9, wherein the printing ink is cured by heating at a temperature of 40 to 80 ℃ for a time of 5 to 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111625268.0A CN114196260A (en) | 2021-12-28 | 2021-12-28 | Printing ink and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111625268.0A CN114196260A (en) | 2021-12-28 | 2021-12-28 | Printing ink and display device |
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| Publication Number | Publication Date |
|---|---|
| CN114196260A true CN114196260A (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111625268.0A Pending CN114196260A (en) | 2021-12-28 | 2021-12-28 | Printing ink and display device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205429A (en) * | 2006-12-18 | 2008-06-25 | 光耀科技股份有限公司 | Metal-containing macromolecule coating composition as well as preparation and uses thereof |
| CN109385143A (en) * | 2017-08-08 | 2019-02-26 | Tcl集团股份有限公司 | A kind of conducting polymer ink and preparation method thereof and QLED device |
| CN109553778A (en) * | 2018-10-31 | 2019-04-02 | 华南理工大学 | The multicomponent polymerization of a kind of elemental selenium, isonitrile/alkynes and amine prepares poly- selenourea/poly- selenium substituted acid amide method |
| CN110235264A (en) * | 2017-01-18 | 2019-09-13 | 日产化学株式会社 | Ink composition containing sulfonation conjugated polymer |
-
2021
- 2021-12-28 CN CN202111625268.0A patent/CN114196260A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205429A (en) * | 2006-12-18 | 2008-06-25 | 光耀科技股份有限公司 | Metal-containing macromolecule coating composition as well as preparation and uses thereof |
| CN110235264A (en) * | 2017-01-18 | 2019-09-13 | 日产化学株式会社 | Ink composition containing sulfonation conjugated polymer |
| CN109385143A (en) * | 2017-08-08 | 2019-02-26 | Tcl集团股份有限公司 | A kind of conducting polymer ink and preparation method thereof and QLED device |
| CN109553778A (en) * | 2018-10-31 | 2019-04-02 | 华南理工大学 | The multicomponent polymerization of a kind of elemental selenium, isonitrile/alkynes and amine prepares poly- selenourea/poly- selenium substituted acid amide method |
Non-Patent Citations (1)
| Title |
|---|
| XIUYING WU, ET AL: "Room-Temperature Metal-Free Multicomponent Polymerizations of Elemental Selenium toward Stable Alicyclic Poly(oxaselenolane)s with High Refractive Index", 《JOURNAL OF THE AMERICAN CHEMICAL SOCIETY》 * |
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