CN110616009A - Perovskite ink, preparation method thereof and display panel - Google Patents
Perovskite ink, preparation method thereof and display panel Download PDFInfo
- Publication number
- CN110616009A CN110616009A CN201910787740.7A CN201910787740A CN110616009A CN 110616009 A CN110616009 A CN 110616009A CN 201910787740 A CN201910787740 A CN 201910787740A CN 110616009 A CN110616009 A CN 110616009A
- Authority
- CN
- China
- Prior art keywords
- color
- perovskite
- ions
- ink
- perovskite ink
- 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.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 23
- 150000002892 organic cations Chemical class 0.000 claims abstract description 20
- 239000002243 precursor Substances 0.000 claims abstract description 20
- 239000002904 solvent Substances 0.000 claims abstract description 15
- 150000001768 cations Chemical class 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 150000002367 halogens Chemical group 0.000 claims description 22
- -1 germanium ions Chemical class 0.000 claims description 18
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 16
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 16
- 229910052794 bromium Inorganic materials 0.000 claims description 16
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 12
- 229910052801 chlorine Inorganic materials 0.000 claims description 12
- 239000000460 chlorine Substances 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 11
- 229910052740 iodine Inorganic materials 0.000 claims description 11
- 239000011630 iodine Substances 0.000 claims description 11
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical group CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 7
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 6
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 3
- 229910052693 Europium Inorganic materials 0.000 claims description 3
- PNKUSGQVOMIXLU-UHFFFAOYSA-N Formamidine Chemical compound NC=N PNKUSGQVOMIXLU-UHFFFAOYSA-N 0.000 claims description 3
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 3
- 125000003277 amino group Chemical group 0.000 claims description 3
- WLZRMCYVCSSEQC-UHFFFAOYSA-N cadmium(2+) Chemical compound [Cd+2] WLZRMCYVCSSEQC-UHFFFAOYSA-N 0.000 claims description 3
- 229910052792 caesium Inorganic materials 0.000 claims description 3
- 229910001430 chromium ion Inorganic materials 0.000 claims description 3
- 229910001429 cobalt ion Inorganic materials 0.000 claims description 3
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 229910001431 copper ion Inorganic materials 0.000 claims description 3
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 229910001437 manganese ion Inorganic materials 0.000 claims description 3
- 229910021645 metal ion Inorganic materials 0.000 claims description 3
- 229910001453 nickel ion Inorganic materials 0.000 claims description 3
- 125000000962 organic group Chemical group 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 3
- 229910001414 potassium ion Inorganic materials 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 229910001419 rubidium ion Inorganic materials 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 229910001432 tin ion Inorganic materials 0.000 claims description 3
- 229910001428 transition metal ion Inorganic materials 0.000 claims description 3
- 238000007641 inkjet printing Methods 0.000 abstract description 10
- 230000003287 optical effect Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000007639 printing Methods 0.000 abstract description 5
- 125000005843 halogen group Chemical group 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 57
- 239000010408 film Substances 0.000 description 12
- 239000000203 mixture Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
- G02F1/133516—Methods for their manufacture, e.g. printing, electro-deposition or photolithography
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Luminescent Compositions (AREA)
Abstract
The invention discloses perovskite ink, a preparation method thereof and a display panel, wherein the perovskite ink comprises a perovskite precursor and a solvent; the perovskite precursor has the molecular formula of (LX)2(SX)n‑1(MX2)n(ii) a In the structural molecular formula, L is a long-chain organic cation, and S is a short-chain organic cation; m is a metal cation; x is halogen; n is any natural number greater than 0. The perovskite ink disclosed by the invention has excellent optical performance and good film-forming property, can be used for printing high-concentration and high-viscosity layered perovskite ink by applying an ink-jet printing technology, can effectively improve the preparation process, and can improve the quality of a film layer formed after ink-jet printing.
Description
Technical Field
The invention relates to the field of displays and the like, in particular to perovskite ink, a preparation method thereof and a display panel.
Background
Perovskites are one of the most interesting luminescent materials in recent years, have the advantages of high luminous efficiency, high chromatographic purity, adjustable light-emitting wavelength and the like, and have great application value in the fields of solar cells, LEDs, lasers and the like. Also, the application thereof to a thin film transistor liquid crystal display (TFT-LCD) can greatly improve the color gamut range and color expressive power of the LCD display. At present, perovskite LCD display is becoming one of the important subjects for application research in the display technology field, however, the conventional three-dimensional perovskite-based materials still face the problems of poor stability, poor film forming quality and difficult processing, which all limit the practical application.
The traditional ink-jet printing technology has certain requirements on the viscosity and the concentration of an ink system, so that the traditional ink-jet printing technology is not suitable for printing the two-dimensional layered perovskite ink with high concentration and high viscosity. Therefore, there is a need to develop new inkjet printing methods to avoid clogging of the orifices by the perovskite to affect the manufacturing process.
Disclosure of Invention
In order to solve the technical problems: the invention provides perovskite ink, a preparation method thereof and a display panel, wherein the perovskite ink has excellent optical performance and good film forming property, so as to solve the problems of poor stability, poor film forming quality, difficulty in processing and the like of the existing perovskite material; meanwhile, the perovskite ink is applied to the color resistance layer of the color film substrate, so that the color resistance layer has good stability and high luminous efficiency.
The technical scheme for solving the problems is as follows: the invention provides perovskite ink, which comprises a perovskite precursor and a solvent; the perovskite precursor has a molecular formula of (LX)2(SX)n-1(MX2)n(ii) a In the molecular formula, L is a long-chain organic cation, and S is a short-chain organic cation; m is a metal cation; x is halogen; n is a natural number greater than 0.
In one embodiment of the present invention, in the formula, n is 2 to 7.
In one embodiment of the present invention, in the formula, the metal cation is a group iv metal ion: any one of lead ions, germanium ions and tin ions; and/or, transition metal ions: any one of copper ions, nickel ions, cobalt ions, iron ions, manganese ions, chromium ions, palladium ions, cadmium ions, europium ions and ytterbium ions; the short-chain organic cation is any one or combination of more of organic amine group methylamine, formamidine, organic complex with potassium ions, organic complex with rubidium ions and organic complex with cesium ions; the halogen comprises at least one of bromine, chlorine and iodine; the long-chain organic cation is selected from any one or more of the following organic groups:
in one embodiment of the present invention, when the perovskite ink is blue, the halogen is chlorine or a mixture of chlorine and bromine; when the perovskite ink is green, the halogen is bromine; when the perovskite ink is red, the halogen is iodine or a mixture of iodine and bromine.
In one embodiment of the present invention, the solvent is dimethylformamide or dimethylsulfoxide, and the concentration of the solvent is 10mg/ml to 1000 mg/ml.
The invention also provides a preparation method of the perovskite ink, which comprises the following steps: respectively mixing the raw materials LX, SX and MX2Mixing to form a perovskite precursor, wherein the perovskite precursor has a molecular formula of (LX)2(SX)n-1(MX2)n(ii) a Wherein L is a long-chain organic cation, S is a short-chain organic cation, M is a metal cation, and X is halogen; adding the prepared perovskite precursor into a solvent to obtain a mixed solution; heating the mixed solution to 60-80 ℃, and stirring for 1-2 hours until the perovskite precursor is completely dissolved; and cooling the temperature to room temperature to obtain the perovskite ink.
The invention also provides a display panel, which comprises a backlight source and a light-emitting layer, wherein the backlight source is provided with a light-emitting side; and a color film substrate arranged on the light emergent side of the backlight source, wherein the color film substrate is provided with a color resistance layer, and the material of the color resistance layer is the perovskite ink as defined in any one of claims 1 to 5.
In an embodiment of the present invention, the color resistance layer has a plurality of color resistance regions arranged in a lattice; the perovskite ink is arranged in part or all of the color resistance region.
In an embodiment of the invention, the backlight source provides ultraviolet light; when the perovskite ink is arranged in all the color resistance areas, wherein the color resistance areas of the perovskite ink with red color display red color; the color resistance region of the perovskite ink with green color shows green color; the color-resistant region of the perovskite ink having a blue color shows a blue color.
In an embodiment of the present invention, the backlight provides blue light; when part of color resistance areas are provided with the perovskite ink, and the rest color resistance areas are filled with transparent polymers; wherein the color-resistant region of the perovskite ink having a red color shows a red color; the color resistance region of the perovskite ink with green color shows green color; the color-resistant region with the transparent polymer shows blue color.
The invention has the beneficial effects that: the perovskite ink disclosed by the invention has excellent optical performance and good film-forming property, can be used for printing two-dimensional or three-dimensional layered perovskite ink with high concentration and high viscosity by applying an ink-jet printing technology, can effectively improve the preparation process, and can improve the quality of a film layer formed after ink-jet printing. The preparation method of the perovskite ink is simple in preparation process. According to the display panel, the perovskite ink is applied to the color resistance layer of the color film substrate, so that the stability and the luminous efficiency of the color resistance layer are effectively improved, and the color gamut range and the color expressive force of the display panel are effectively improved.
Drawings
The invention is further explained below with reference to the figures and examples.
Fig. 1 is a schematic structural diagram of a display panel according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of a display panel according to embodiment 2 of the present invention.
Wherein the content of the first and second substances,
1a display panel; 10 a backlight source;
20, a color film substrate; 21 a polarizer;
22 a planar layer; 23 color resist layer;
24 optical filter; 100 light-emitting side;
231a color-resisting area; 232 a black matrix;
231a first color resist region; 231b a second color-resist region;
231c a third color-resist region; 231d fourth color resist region;
231e a fifth color-resist region; 231f a sixth color-resist region; .
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
Example 1: the perovskite ink comprises a perovskite precursor and a solvent; the perovskite precursor has a molecular formula of (LX)2(SX)n-1(MX2)n(ii) a In the molecular formula, L is a long-chain organic cation, and S is a short-chain organic cation; m is a metal cation; x is halogen; n is any natural number greater than 0. In the formula, n is preferably 2 to 7. The metal cation is a fourth main group metal ion: any one of lead ions, germanium ions and tin ions; and/or, transition metal ions: any one of copper ions, nickel ions, cobalt ions, iron ions, manganese ions, chromium ions, palladium ions, cadmium ions, europium ions and ytterbium ions; the short-chain organic cation is any one or combination of more of organic amine group methylamine, formamidine, organic complex with potassium ions, organic complex with rubidium ions and organic complex with cesium ions; the halogen comprises at least one of bromine, chlorine and iodine; the long-chain organic cation is selected from any one or more of the following organic groups:
the solvent is dimethylformamide or dimethyl sulfoxide, and the concentration of the solvent is 10 mg/ml-1000 mg/ml.
When the perovskite ink is blue, the halogen is chlorine or the mixture of chlorine and bromine; when the perovskite ink is green, the halogen is bromine; when the perovskite ink is red, the halogen is iodine or a mixture of iodine and bromine.
The perovskite ink of the present invention will be further described below in conjunction with a method for preparing the perovskite ink.
The preparation method of the perovskite ink comprises the following steps:
respectively mixing the raw materials LX, SX and MX2Mixing to form a perovskite precursor, wherein the perovskite precursor has a molecular formula of (LX)2(SX)n-1(MX2)n(ii) a Wherein L is a long-chain organic cation, S is a short-chain organic cation, M is a metal cation, and X is halogen;
adding the prepared perovskite precursor into a solvent to obtain a mixed solution; heating the mixed solution to 60-80 ℃, and stirring for 1-2 hours until the perovskite precursor is completely dissolved;
and cooling the temperature to room temperature to obtain the perovskite ink.
In the embodiment, the color emitted by the corresponding perovskite ink is obtained by changing the relative molar amounts of three halogens, namely chlorine, bromine and iodine, namely when the perovskite ink is blue, the halogen is chlorine or the mixture of chlorine and bromine; when the perovskite ink is green, the halogen is bromine; when the perovskite ink is red, the halogen is iodine or a mixture of iodine and bromine.
As shown in fig. 1, embodiment 1 further provides a display panel 1, which includes a backlight 10 and a color filter substrate 20.
The backlight 10 has a light exit side 100, and the backlight 10 provides ultraviolet light.
The color filter substrate 20 is located on the light emitting side 100 of the backlight 10, and the color filter substrate 20 has a polarizer 21, a planarization layer 22, a color resistance layer 23, an optical filter 24, and the like. The polarizer 21 is arranged on one side of the flat layer 22, the color resistance layer 23 is arranged on the other side of the flat layer 22, the optical filter 24 is arranged on the color resistance layer 23, and the color resistance layer 23 is internally provided with a plurality of color resistance regions 231 arranged in a lattice manner and a black matrix 232; the black matrix 232 is disposed between the color resistance regions 231. The perovskite ink is provided in the entire color-resistant region 231. In this embodiment, the color-resisting area 231 is divided into a first color-resisting area 231a, a second color-resisting area 231b and a third color-resisting area 231 c. The first color-resist region 231a has red perovskite ink therein, the second color-resist region 231b has green perovskite ink therein, and the third color-resist region 231c has blue perovskite ink therein.
Since the backlight 10 supplies ultraviolet light, the first color-resist region 231a of the perovskite ink having a red color shows a red color; the second color resistance region 231b of the perovskite ink having the green color shows green color; the third color-resist region 231c with the blue perovskite ink shows blue color.
The main design point of this embodiment 1 is to perform fixed-point printing and deposition of the layered perovskite ink on each color resist region 231 of the color resist layer 23 by using an oscillation type inkjet printing apparatus to produce a color film as the color resist layer 23. Other parts such as the array substrate and the package layer are not described in detail.
As shown in fig. 2, embodiment 2 is different from embodiment 1 in that the backlight 10 provides blue light; the perovskite ink is provided in a part of the color resistance region 231. In this embodiment, the color resistance area 231 is divided into a fourth color resistance area 231d, a fifth color resistance area 231e and a sixth color resistance area 231 f. The fourth color resist region 231d has red perovskite ink therein, the fifth color resist region 231e has green perovskite ink therein, and the sixth color resist region 231f has transparent polymer. In this embodiment, the transparent polymer may be polyurethane, polycarbonate, polyester carbonate, or the like.
Since the backlight 10 provides blue light; the fourth color resistance region 231d having therein the perovskite ink of red color shows red color; the fifth color resistance region 231e of the perovskite ink having the green color shows green color; the sixth color-resist region 231f with the transparent polymer shows blue color.
In the process of manufacturing the color filter substrates 20 of examples 1 and 2, the layered perovskite ink is dot-printed and deposited on each color resist region 231 of the color resist layer 23 by using an oscillation inkjet printing apparatus, and the color filter as the color resist layer 23 is obtained by volatilizing the solvent. The oscillation type ink-jet printing process is applicable to high-viscosity and high-concentration ink solution. Specifically, perovskite ink of one luminescent color is drawn into the printing head by capillary action, and then the head is moved to a position above the color resistance region 231, and a certain amount of perovskite ink is deposited into the color resistance region 231 by the oscillating force. After the nozzles are cleaned, perovskite inks of other luminescent colors are sucked and sprayed in the corresponding color resistance regions 231, and finally the required color film is obtained.
The whole preparation method of the perovskite ink is simple, and only the perovskite precursor and the solvent are required to be mixed, heated and cooled. The preparation is convenient and the material is saved.
Due to the protection effect of long-chain organic molecules in the layered perovskite structure, a color film formed by the layered perovskite structure has better environmental stability. The display panel 1 having the color filter substrate 20 can also obtain higher light emitting efficiency, wider color gamut range and better color expression. Therefore, the quality and value of the display device are effectively improved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A perovskite ink is characterized by comprising
A perovskite precursor and a solvent;
the perovskite precursorHas a molecular formula of (LX)2(SX)n-1(MX2)n；
In the molecular formula, L is a long-chain organic cation, and S is a short-chain organic cation; m is a metal cation; x is halogen; n is a natural number greater than 0.
2. The perovskite ink of claim 1, wherein in the formula n is 2 to 7.
3. The perovskite ink of claim 1, wherein in the formula the metal cation is a group iv metal ion: any one of lead ions, germanium ions and tin ions;
the metal cation may also be a transition metal ion: any one of copper ions, nickel ions, cobalt ions, iron ions, manganese ions, chromium ions, palladium ions, cadmium ions, europium ions and ytterbium ions;
the short-chain organic cation is any one or combination of more of organic amine group methylamine, formamidine, organic complex with potassium ions, organic complex with rubidium ions and organic complex with cesium ions;
the halogen comprises at least one of bromine, chlorine and iodine;
the long-chain organic cation is selected from any one or more of the following organic groups:
4. the perovskite ink of claim 3,
when the perovskite ink is blue, the halogen is chlorine or the chlorine and the bromine are mixed;
when the perovskite ink is green, the halogen is bromine;
when the perovskite ink is red, the halogen is iodine or the iodine and the bromine are mixed.
5. The perovskite ink as claimed in claim 3, wherein the solvent is dimethylformamide or dimethylsulfoxide, and the concentration of the solvent is 10mg/ml to 1000 mg/ml.
6. A preparation method of perovskite ink is characterized by comprising the following steps:
respectively mixing the raw materials LX, SX and MX2Mixing to form a perovskite precursor, wherein the perovskite precursor has a molecular formula of (LX)2(SX)n-1(MX2)n(ii) a Wherein L is a long-chain organic cation, S is a short-chain organic cation, M is a metal cation, and X is halogen;
adding the prepared perovskite precursor into a solvent to obtain a mixed solution;
heating the mixed solution to 60-80 ℃, and stirring for 1-2 hours until the perovskite precursor is completely dissolved;
and cooling the temperature to room temperature to obtain the perovskite ink.
7. A display panel, comprising
The backlight source is provided with a light emitting side; and
the color film substrate is arranged on the light emergent side of the backlight source and is provided with a color resistance layer, and the color resistance layer is made of the perovskite ink as set forth in any one of claims 1 to 5.
8. The display panel according to claim 7, wherein the color-resisting layer has a plurality of color-resisting regions arranged in a lattice; the perovskite ink is arranged in part or all of the color resistance region.
9. The display panel of claim 8, wherein the backlight provides ultraviolet light; when the perovskite ink is provided in all the color-resistant regions, wherein,
the color-resistant region of the perovskite ink having a red color shows a red color;
the color resistance region of the perovskite ink with green color shows green color;
the color-resistant region of the perovskite ink having a blue color shows a blue color.
10. The display panel of claim 8, wherein the backlight provides blue light; when part of color resistance areas are provided with the perovskite ink, and the rest color resistance areas are filled with transparent polymers; wherein the color-resistant region of the perovskite ink having a red color shows a red color; the color resistance region of the perovskite ink with green color shows green color; the color-resistant region with the transparent polymer shows blue color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910787740.7A CN110616009A (en) | 2019-08-26 | 2019-08-26 | Perovskite ink, preparation method thereof and display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910787740.7A CN110616009A (en) | 2019-08-26 | 2019-08-26 | Perovskite ink, preparation method thereof and display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110616009A true CN110616009A (en) | 2019-12-27 |
Family
ID=68922484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910787740.7A Pending CN110616009A (en) | 2019-08-26 | 2019-08-26 | Perovskite ink, preparation method thereof and display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110616009A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114312021A (en) * | 2021-12-22 | 2022-04-12 | 中国电子科技集团公司第十八研究所 | Spatial perovskite battery printing system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807346A (en) * | 2004-12-24 | 2006-07-26 | 精工爱普生株式会社 | Precursor composition, method of manufacturing precursor composition, inkjet coating ink |
| US20070122932A1 (en) * | 2001-10-05 | 2007-05-31 | Cabot Corporation | Methods and compositions for the formation of recessed electrical features on a substrate |
| CN107402469A (en) * | 2017-08-18 | 2017-11-28 | 京东方科技集团股份有限公司 | Color membrane substrates and preparation method thereof, display panel and display device |
| CN108319061A (en) * | 2018-01-25 | 2018-07-24 | 深圳市华星光电技术有限公司 | Polaroid and liquid crystal display panel preparation method |
| CN108417720A (en) * | 2016-01-26 | 2018-08-17 | 南京工业大学 | A kind of perovskite material |
| CN109321036A (en) * | 2018-11-30 | 2019-02-12 | 苏州星烁纳米科技有限公司 | Inkjet printing perovskite quantum dot ink and preparation method thereof |
| CN110591449A (en) * | 2019-08-21 | 2019-12-20 | 深圳市华星光电技术有限公司 | Perovskite ink, preparation method thereof and backlight module |
-
2019
- 2019-08-26 CN CN201910787740.7A patent/CN110616009A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070122932A1 (en) * | 2001-10-05 | 2007-05-31 | Cabot Corporation | Methods and compositions for the formation of recessed electrical features on a substrate |
| CN1807346A (en) * | 2004-12-24 | 2006-07-26 | 精工爱普生株式会社 | Precursor composition, method of manufacturing precursor composition, inkjet coating ink |
| CN108417720A (en) * | 2016-01-26 | 2018-08-17 | 南京工业大学 | A kind of perovskite material |
| CN107402469A (en) * | 2017-08-18 | 2017-11-28 | 京东方科技集团股份有限公司 | Color membrane substrates and preparation method thereof, display panel and display device |
| CN108319061A (en) * | 2018-01-25 | 2018-07-24 | 深圳市华星光电技术有限公司 | Polaroid and liquid crystal display panel preparation method |
| CN109321036A (en) * | 2018-11-30 | 2019-02-12 | 苏州星烁纳米科技有限公司 | Inkjet printing perovskite quantum dot ink and preparation method thereof |
| CN110591449A (en) * | 2019-08-21 | 2019-12-20 | 深圳市华星光电技术有限公司 | Perovskite ink, preparation method thereof and backlight module |
Non-Patent Citations (1)
| Title |
|---|
| 中国感光学会: "《2016-2017感光影像学学科发展报告》", 31 March 2018, 中国科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114312021A (en) * | 2021-12-22 | 2022-04-12 | 中国电子科技集团公司第十八研究所 | Spatial perovskite battery printing system |
| CN114312021B (en) * | 2021-12-22 | 2023-08-08 | 中国电子科技集团公司第十八研究所 | Space perovskite battery printing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103439846B (en) | A kind of display panel, display device | |
| US9851601B2 (en) | Color filter substrate, liquid crystal display panel and dispersing method of monocolor quantum dots | |
| CN104765187B (en) | Liquid crystal display | |
| US11201305B2 (en) | Display panel and method of manufacturing the same | |
| CN105602227B (en) | Quantum stick compositions, quantum rod film and the display device for including the quantum rod film | |
| CN1786089B (en) | Ink composition, a color filter substrate and method of manufacturing a color filter substrate | |
| CN103728765A (en) | Color liquid crystal display panel and manufacturing method thereof | |
| CN105954920A (en) | Production method of flexible liquid crystal display panel | |
| CN105278150A (en) | Quantum dot color film substrate, manufacture method thereof and liquid crystal display device | |
| CN103033868A (en) | Polarizing device, round polarizing plate and method for manufacturing the same | |
| CN106526962A (en) | Light conversion membrane and preparation method thereof and display equipment | |
| CN106981502A (en) | A kind of OLED display panel and preparation method thereof | |
| CN105185790B (en) | Array substrate and preparation method thereof | |
| CN110591449A (en) | Perovskite ink, preparation method thereof and backlight module | |
| Vescio et al. | 2D PEA2SnI4 inkjet-printed halide perovskite LEDs on rigid and flexible substrates | |
| CN102934018A (en) | Color display element manufacturing method and color display element | |
| CN102043181B (en) | Optical filter for display device, manufacture method and display device having the same | |
| CN100499952C (en) | Making method for homochromy and white organic EL part | |
| CN106773319B (en) | Display device and preparation method thereof | |
| CN106374056A (en) | Manufacture method of QLED display panel and QLED display | |
| CN110616009A (en) | Perovskite ink, preparation method thereof and display panel | |
| CN207134357U (en) | Display panel and display device | |
| CN1928669A (en) | Liquid crystal display panel and method for producing colorful filtering substrate | |
| KR101048800B1 (en) | Transmissive Display Device | |
| CN102650755B (en) | Color diaphragm base plate, color filter and manufacturing method of color filter |
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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Applicant after: TCL China Star Optoelectronics Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Applicant before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191227 |